Способ изготовлени минеральных волокон из базальтовых горных пород

Изобретение относится к области производства непрерывных и штапельных минеральных волокон из расплава базальтовых горных пород с повышенной прочностью и химической устойчивостью и может быть использовано в промышленности строительных материалов с тепло- и звукоизоляционными свойствами, энергетике и других отраслях. Технический результат: повышение прочности и химической устойчивости минеральных волокон из базальтовых горных пород. Заявлен способ изготовления минеральных волокон из базальтовых горных пород, в котором в качестве исходной используют породу, включающую SiO2 , Al2O3, CaO, MgO, Fe2О3, К2О и Na2O, при этом основные стеклообразующие и щелочные оксиды содержатся в ней при следующем соотношении (мас.%): SiO2 - 61-64 и К2О+Na2О - 9,0-9,2. 1 с.п. ф-лы, 1 табл.

СПОСОБ ПОЛУЧЕНИЯ СТЕКЛА С ИСПОЛЬЗОВАНИЕМ ЭЛЕКТРОВАРКИ

Изобретение относится к области плавки стекла, предназначенного для преобразования в минеральную вату путем волокнообразования. Способ получения стекла включает стадию электроварки с использованием электродов, погруженных в стекломассу из способной к стеклованию смеси материала шихты. В состав шихты входит по меньшей мере один поставщик марганца, в котором марганец находится в степени окисления выше чем +2, выбранный из MnO, MnO, MnO, MnO, перманганатов и минералов, выбранных из пиролюзита, гаусманита, биксбиита и бернессита. Общее количество поставщика марганца, входящего в состав способной к стеклованию смеси материала шихты, таково, что одна тонна указанной сухой смеси содержит между 1 и 20 кг марганца в степени окисления выше чем +2, в пересчете на MnO. Химический состав стекла включает следующие составляющие в пределах, приводимых ниже, выраженные в % вес.: SiO35-55%; AlO14-27%; CaO 3-18 %; MgO 0-15%; NaO+KO 1-17%; FeO3-15%; BO0-8%; PO0-1%; TiO0-2%. Общее содержание CaO и MgO составляет ...

КОМПОЗИЦИИ СТЕКЛОВОЛОКНА

Композиция стекловолокна содержит следующие компоненты в вес.%: от 57 до 60.8 SiO2, от 0 до 2 Na2O, от 22 до 25 СаО, от 12 до 13.6 Al2О3, до 0,5 Fe2O3, от 0 до 2 K2O, от 1.7 до 3 MgO, от 0,5 до 2 TiO2, от 0,6 до 1,5 Li2O, 2,0 В2O3. Композиция имеет температуру формования при логарифме вязкости 3 не выше чем 1230°С, на основе стандарта сравнения NIST 714, значение ΔТ по меньшей мере 50°С и отношение SiO2/RO не выше чем 2,42. Техническая задача изобретения - снижение температуры формования и температуры ликвидуса, улучшение экологии. 2 н. и 10 з.п. ф-лы, 11 табл., 6 ил.

КОМПОЗИТ, СОДЕРЖАЩИЙ МИНЕРАЛЬНУЮ ШЕРСТЬ, СОДЕРЖАЩУЮ САХАР

Настоящее изобретение относится к производству минеральной шерсти. Способ получения формованного композита для введения в плавильную печь, включающий приготовление смеси, в которую вводятся фрагменты минеральной шерсти, содержащей клей, содержащий сахар, нецементный носитель на основе диоксида кремния, отличный от шерсти, нецементный носитель на основе щелочного металла, отличный от шерсти, и воду, заключающийся в том, что нецементный носитель на основе диоксида кремния и нецементный носитель на основе щелочного металла образуют вместе с водой минеральное связующее, которое постепенно отверждается вокруг твердых частиц, присутствующих в смеси, а затем осуществляется формование смеси в виде формованного композита. Способ получения минеральной шерсти, в котором получается расплавленная масса, которая преобразуется в минеральную шерсть посредством устройства для формования волокон, где формованный композит, полученный по любому из предыдущих пунктов, вводится в виде стеклуемой загрузки в плавильную ...

ЛИНИЯ ПРИГОТОВЛЕНИЯ И СПОСОБ ПОЛУЧЕНИЯ СВЯЗУЮЩЕГОВ ЛИНИИ ДЛЯ ПРОИЗВОДСТВА МИНЕРАЛОВАТНЫХ ПЛИТ

Изобретение относится к промышленности строительных материалов, в частности, к изготовлению пористых материалов, преимущественно минераловатных плит на синтетическом связующем и может быть использовано в производства волокнистых теплоизоляционных изделий. Линия включает бак-смеситель, насос, установленный с возможностью последовательной подачи через замкнутую систему трубопроводов фенолформальдегидной смолы и аммиачной воды в бак-смеситель и затем готового фенолформальдегидного связующего из бака смесителя в расходную емкость для готового связующего; расходные емкости для компонентов, участвующих в приготовлении связующего, дозаторы и трубопроводы; причем установка для приготовления аммиачной воды через тот же насос и ту же систему трубопроводов соединена с расходным баком аммиачной воды, который снабжен предохранительным клапаном для сброса избыточного давления. Другим объектом изобретения является способ получения связующего для производства минераловатных плит, включающий перекачку насосом ...

СТОЙКОЕ К ВОЗДЕЙСТВИЮ ВЫСОКИХ ТЕМПЕРАТУР СТЕКЛОВИДНОЕ НЕОРГАНИЧЕСКОЕ ВОЛОКНО

Изобретение относится к стекловолокну, которое используется при изготовлении тепло- или звукоизоляционного материала. Технический результат изобретения заключается в создании стекловолокна, стойкого к воздействию высоких температур и являющегося недолговечным в физиологических жидкостях. Стекловидное неорганическое волокно имеет малую усадку при температурах использования свыше 1000°С и сохраняет конструктивную целостность до температуры эксплуатации. Стекловолокно содержит более чем 71,25 вес.% диоксида кремния, более чем 14 вес.% оксида магния и до 6 вес.% соединения, содержащего элемент семейства лантанидов. Соединение, содержащее элемент семейства лантанидов, действует как модификатор вязкости и улучшает способность к волокнообразованию. 3 н. и 9 з.п. ф-лы, 2 ил.

ПРОДУКТ, ВКЛЮЧАЮЩИЙ ИСКУССТВЕННО ПОЛУЧЕННЫЕ СТЕКЛОВИДНЫЕ ВОЛОКНА

Представлены искусственно полученные стекловидные волокна, имеющие растворимость при рН 4,5, равную по крайней мере 20 нм в день, вязкость расплава при 1400oС 12-70 П, волокна образуют из композиции, которая включает, вес.%: Al2 O3 18 - 30, SiO2 32 - 48, CaO 10 - 30, MgO 5 - 20 и FeO от 5 до менее 10. Технический результат - значительная скорость растворения волокон при рН 4,5 и использование дешевых исходных материалов. 20 з.п. ф-лы, 1 табл.

МИНЕРАЛЬНОЕ ВОЛОКНО

Изобретение относится к производству теплоизоляционных материалов, а именно к составам для изготовления минерального волокна из силикатного расплава. Изобретение решает задачу увеличения долговечности минерального волокна и теплоизоляционных изделий на его основе. Минеральное волокно содержит при следующем соотношении компонентов, мас. %: SiO2 41,27 - 43,65, Al2O3 11,28 - 12,16, TiO2 1,30 - 1,40, Fe2O3 3,19 - 3,85, FeO 7,13 - 8,82, MnO 0,10 - 0,20, CaO 15,00 - 18,63, MgO 11,10 - 12,50, K2O 0,30 - 0,40, Na2O 2,50 - 3,50, SO3 0,05 - 0,10. 3 табл.

СПОСОБ ПОЛУЧЕНИЯ МИНЕРАЛЬНОЙ ВАТЫ

Изобретение относится к производству теплоизоляционных материалов при плавлении сырья в печах-вагранках, а именно к производству минеральной ваты, используемой для тепло- и звукоизоляции. Техническая задача изобретения - повышение качества минеральной ваты, расширение сырьевой базы составов для получения минеральной ваты, удешевление процесса производства минеральной ваты. Способ получения минеральной ваты включает загрузку топлива, исходного минерального сырья в печь, плавление минерального сырья и выработку минеральной ваты. В качестве топлива используют смесь, состоящую из кокса, тощих углей и/или антрацитов при следующем соотношении компонентов, мас.%: кокс - 40-85, тощие угли и/или антрациты - 60-15. Тощие угли и/или антрациты характеризуются тем, что содержание летучих составляет не более 15%, содержание золы составляет не более 40%, термостойкость - не менее 70%. 3 з.п. ф-лы, 2 табл.

Сырьевая композиция для производства химически стойкого минерального волокна и тонких пленок

Изобретение относится к области производства минеральных волокон и тонких пленок на основе горных пород. Технический результат заключается в повышении химической стойкости минерального волокна либо тонкой пленки. Заявленное изобретение может быть использовано на установках по получению непрерывных волокон и тонких пленок, диаметром от 6 до 40 мкм или толщиной от 1 до 20 мкм. Волокно либо тонкая пленка на основе горной породы и природных минералов, в химическом составе содержит следующие компоненты в мас.%: оксид алюминия 6,0-10,0, смесь оксидов железа 8,0-10,0, оксид титана 1,5-3,0, оксид кальция 7,0-9,0, оксид магния 3,0-5,0, оксид калия 1,5-3,0, оксид натрия 2,5-5,0, оксид марганца 3,0-5,0, оксид циркония 5,0-8,0, оксид цинка 2,0-4,0 и оксид кремния - остальное. Компоненты смеси предварительно измельчаются, перемешиваются до гомогенного состава, с получением размера частиц менее 100 мкм. Механоактивацией переводят из кристаллического состояния исходных компонентов в неполное аморфное ...

РАСТВОРИМЫЕ В СОЛЕВОМ РАСТВОРЕ НЕОРГАНИЧЕСКИЕ ВОЛОКНА

... 1. Термоизоляционный материал, применяемый в областях, требующих непрерывной стойкости к температурам 1260°C без взаимодействия с алюмосиликатным огнеупорным кирпичом, причем изоляционный материал содержит волокна, имеющие композицию, мас.%: 72%<=SiO2<86%, MgO<=2,5%, 14% Подробнее

ПРОДУКТЫ ИЗ МИНЕРАЛЬНОГО ВОЛОКНА

... 1. Продукт из минерального волокна, содержащий волокно, образованное силикатной решеткой и содержащее кремний, кальций, магний, железо, алюминий, кислород и, необязательно, атомы щелочных металлов, отличающийся тем, что волокно имеет состав (выраженный в мас.% окисей), включающий, по меньшей мере, 3% FeO, и 0-8% окисей щелочных металлов и, по меньшей мере, 5% MgO, причем, по меньшей мере, 70% железа представлено в виде трехвалентного железа, а волокна имеют сердцевину, окруженную наружным поверхностным слоем, толщиной менее 1 мкм, в котором максимальная концентрация атомов магния, по меньшей мере, в 1,5 раза больше концентрации атомов магния во всем волокне. 2. Продукт по п.1, в котором поверхностный слой содержит максимальную концентрацию атомов кальция, которая больше концентрации атомов кальция во всем волокне. 3. Продукт по п.2, в котором поверхностный слой содержит максимальную концентрацию атомов кальция, которая, по меньшей мере, в 1,5 раза больше концентрации атомов кальция во всем ...

МИНЕРАЛЬНОЕ ВОЛОКНО

Минеральное волокно, включающее SiO2, Al2O3, TiO2, Fe2O3 FeO, CaO, MgO, SO3, K2O и Na2O, отличающееся тем, что оно содержит указанные компоненты в следующем количестве, мас. %: SiO2 - 35-61 - 37,16 Al2O3 - 17,24 - 19,28 TiO2 - 0,76 - 1,12 Fe2O3 - 3,14 - 3,25 FeO - 0,84 - 1,57 СaO - 33,65 - 36,48 MgO - 1,74 - 2,51 SO3 - 0,10 - 0,17 K2O - 1,54 - 2,28 Na2O - 0,49 - 1,12 ...

ШИХТА ДЛЯ ИЗГОТОВЛЕНИЯ МИНЕРАЛЬНОГО ВОЛОКНА

Изобретение относится к производству строительных материалов, в частности минерального волокна. Цель изобретения - снижение энергетических затрат при получении силикатных расплавов, снижение расхода исходных сырьевых компонентов при подготовке шихты путем включения отходов минераловатного производства в технологический процесс. Это достигается тем, что в состав шихты для получения минерального волокна, включающую щебень доменного шлака и корректирующие добавки, дополнительно входят отходы минераловатного производства при следующем соотношении компонентов, мас.%: щебень доменного шлака 40,0 - 82,0, корректирующие добавки (песок, суглинок, базальтовый щебень) 8,0 - 10,0, отходы производства 10,0 - 50,0.

Способ производства минеральных волокон из горных пород

... 1. Способ производства стекла для изготовления минерального волокна из базальтовых горных пород, отличающийся тем, что в качестве исходной или базовой стеклообразующей породы используют базальтовый порфирит, включающий SiO2, Al2O3, CaO, MgO, Fe2O3, К2О, Na2O при следующем содержании основных стеклообразующих окислов, мас.%: SiO2<64,5%; Al2O3<18,5% (Na2O+ К2 O)< 9,2%. 2. Способ по п.1, отличающийся тем, что для производства штапельных волокон используется синтеризуемая шихта следующего состава: базальтовый порфирит (базовый состав) 75% + 25% известняка с содержанием CaO>55%.

ЭЛЕКТРОПРОВОДЯЩИЙ СЕРДЕЧНИК ИЗ НЕПРЕРЫВНЫХ БАЗАЛЬТОВЫХ ВОЛОКОН

Электропроводящий сердечник из непрерывного базальтового волокна и термореактивного теплостойкого связующего, отличающийся тем, что арматура сердечника выполнена из пучка непрерывных базальтовых волокон, каждое из которых покрыто токопроводящим металлом.

МИНЕРАЛЬНОЕ ВОЛОКНО

Минеральное волокно, включающее SiO2, Al2O3, TiO2, Fe2O3, FeO, MnO, CaO, MgO, K2O, Na2O и SO3, отличающееся тем, что оно содержит указанные компоненты при следующем соотношении, мас.%: SiO2 - 41,27-43,65 Al2O3 - 11,28-12,16 TiO2 - 1,30-1,40 Fe2O3 - 3,19-3,85 FeO - 7,13-8,82 MnO - 0,10-0,20 CaO - 15,00-18,63 MgO - 11,10-12, 50 K2O - 0,30-0,40 Na2O - 2,50 - 3,50 SO3 - 0,05-0,10 ...

СЫРЬЕ ДЛЯ ПОЛУЧЕНИЯ МИНЕРАЛЬНОГО ВОЛОКНА

... 1. Загрузка сырья для получения минерального волокна, включающая лейкогаббро, троктолит и доломит в следующих количествах: лейкогаббро от 10 до 45 мас.%, троктолит от 3 до 20 мас.% и доломит от 5 до 30 мас.%. 2. Загрузка сырья по п.1, включающая лейкогаббро от 25 до 45 мас.%, троктолит от 5 до 20 мас.% и доломит от 5 до 30 мас.%. 3. Загрузка сырья по п.1 или 2, включающая от 7 до 58 мас.% одного или нескольких каменных материалов, выбранных из группы, состоящей из габбро, диабаза, базальта и перидотита. 4. Загрузка сырья по любому из предшествующих пунктов, в которой минерал плагиоклаз в лейкогаббро содержит, по меньшей мере, приблизительно 50 мол.% анортита. 5. Загрузка сырья по любому из предшествующих пунктов, в которой оливиновый минерал в троктолите содержит, по меньшей мере, приблизительно 35 мол.% фаялита. 6. Загрузка сырья по любому из предшествующих пунктов, по меньшей мере частично, находящаяся в форме брикетов, спрессованных из сыпучего сырья. 7. Способ получения минерального ...

КОМПОЗИЦИИ ДЛЯ ПОЛУЧЕНИЯ СТЕКЛОВОЛОКНА

... 1. Композиция стекловолокна, включающая SiO2 от 52 до 62 вес.%, Na2O от 0 до 2 вес.%, СаО от 16 до 25 вес. %, Al2O3 от 8 до 16 вес.%, Fe2O3 от 0,05 до 0,80 вес.%, K2O от 0 до 2 вес.%, MgO от 1 до 5 вес.%, В2 О3 от 0 до 5 вес.%, TiO2 от 0 до 2 вес.% и F от 0 до 1 вес.%, в которой композиция стекла имеет температуру формования, при логарифме вязкости 3, не выше, чем 1240°С, на основе стандарта сравнения NIST 714, значение ΔT по меньшей мере 50°С и отношение SiO2/RO не выше, чем 2,35. 2. Композиция стекловолокна по п.1, в которой содержание SiO2 составляет не больше, чем 59 вес.%, величина ΔT изменяется в интервале от 50 до 83°С и отношение SiO2/RO, изменяется в интервале от 1,9 до 2,3. 3. Композиция стекловолокна по п.1, в которой содержание Si02 составляет не больше, чем 58 вес.%. 4. Композиция стекловолокна по п.2, в которой температура формования, при логарифме вязкости 3, составляет не более чем 1230°С, на основе стандарта сравнения NIST 714. 5. Композиция стекловолокна по п.4, в которой ...

МИНЕРАЛЬНОЕ ВОЛОКНО С МИКРОПОРИСТЫМ ИЛИ МЕЗОПОРИСТЫМ ПОКРЫТИЕМ

... 1. Минеральное волокно с микропористым или мезопористым покрытием. 2. Волокно по п.1, состоящее из стекла или диоксида кремния. 3. Волокно по п.1 или 2, микропористое или мезопористое покрытие которого выполнено на основе по меньшей мере одного соединения по меньшей мере одного из элементов: Si, W, Sb, Ti, Zr, Ta, V, B, Pb, Mg, Al, Mn, Co, Ni, Sn, Zn, In, Fe и Mo. 4. Волокно по п.1 для использования при повышенной температуре, в частности, при температуре до 900°С. 5. Продукт, содержащий волокна по любому из пп.1 - 4 и возможно органический компонент, такой как связующее, удельная поверхность которого, по меньшей мере, равна 10 мІ/г, в частности по меньшей мере равна 30 мІ/г. 6. Продукт по п.5 в форме мата, сетки, войлока, ваты, резаных волокон, непрерывной нити, в частности в виде намотки, или ткани. 7. Способ получения микропористого или мезопористого покрытия на волокнах в целях получения продукта по п. 5 или 6, заключающийся в том, что волокно приводят в контакт с композицией, состоящей ...

Стекло для изготовления стекловолокна

Состав для получения минеральной ваты

Изобретение относится к производству теплоизоляционных строительных материалов . С целью повышения температуроус- тойчивости и щелочестойкости минеральной ваты состав для получения минеральной ваты содержит, мас.%: SiO 33,0- 38,0; 2,0-4,0; ТЮ 0,2-0,6; РёзОэ 12,0-15,0; МпО 11,0-18,0; СаО 25,0-30,0; MgO 3,0-5,0 и CrjOa 0,4- 1,6. Температура плавления расплава 1260-1300, щелочестойкость полученной на его основе минеральной ваты 0,17-0,31%, т.емпературоустойчивость более 940°С, плотность 75-92 кг/м , теплопроводность при (298+5) К 0,039- 0,044 Вт/(м К), модуль кислотности 1,54-2,08. 2 табл. л ...

Минеральная вата

Изобретение относится к области производства теплоизоляционных строительных материалов. С целью повышения водостойкости, снижения содержания неволокнистых включений и увеличения длины волокна минеральная вата содержит, мас.%: SIO 2 46,20-52,18 AL 2O 3 13,44-15,22 CAO 21,97-24,80 MGO 5,00-10,29 FE 2O 3 2,90-2,97 NA 2O 0,55-0,63 K 2O 1,29-1,45 SO 3 0,53-0,58. Минеральная вата имеет модуль кислотности 1,7-2,5 PH 1,74-3,42 длину волокна 40-80 мм температуроустойчивость 680-720°С, содержит 5,5-8,0% неволокнистых включений. 4 табл.

ZUSAMMENSETZUNGEN ZUR FASERHERSTELLUNG BEI HOHER TEMPERATUR

MINERALFASERZUSAMMENSETZUNG

MINERALFASERZUSAMMENSETZUNG

Verwendung von P2O5 oder B2O3 in anorganischen fasern, und anorganische Fasern, löslich in einer Salzlösung

VERFAHREN ZUR HERSTELLUNG VON NATRIUMCALCIUMBOROSILICAT-GLAESERN, INSBESONDERE FUER GLASSEIDE

Mineralwollezusammensetzung mit verbesserter Hitzebeständigkeit und Löslichkeit in physiologischen Flüssigkeiten

Biologisch abbaubare Glaszusammensetzung und Mineralwolleprodukt hieraus

Glaszusammensetzung zum Herstellen von biologisch abbaubaren Mineralfasern, enthaltend folgende Komponenten, angegeben in Masse-%: SiO2 55 bis 59 Al2O3 0,4 bis 2,4 Na2O 3 bis 5,5 CaO 10 bis 19 MgO 8 bis 16 FeII- und FeIII-Oxide, ausgedrückt als FeIII-Oxid >8 bis 10 TiO2 0,1 bis 1,2 K2O 0,1 bis 2 Na2O + K2O 4–7 CaO + MgO 23–27 wobei der Redoxwert = 1,11·FeIIO/(1,11·FeIIO + FeIII2O3) im Bereich von 0 bis 0,5 liegt.

Inorganic fibres

Man-made vitreous fibres

METHOD OF PRODUCING TEMPERATURE-RESISTANT ROCK FIBRES

Preparation of substantially polycrystalline silicon carbide fibers from methylpolysilanes

Process of forming basalt fibers with improved tensile strength

A method of improving the tensile strength of drawn fibers produced from molten basalt rock. Strength is increased by reducing the ferric iron content of the final fibers below that which would be present in the fibers if drawn under normal atmospheric and operational conditions. This is accomplished by either adding a reducing agent to the melt, by drawing the fibers in an inert or reducing atmosphere, or by a combination of both methods.

BASALT-TYPE GLASS-CERAMIC FIBRES

VERFAHREN ZUM HERSTELLEN VON ISOLIERWOLLE

USE OF FROM PHOSPHORUS CINDER, CONSISTING ESSENTIALLY OF CALCIUM SILICATE MANUFACTURE FIBERS PERFECT OF GLASSY STRUCTURE FOR REINFORCING OF FROM INORGANIC BONDING AGENTS MANUFACTURE BUILDING MATERIALS

MINERAL FIBRE

VERFAHREN ZUR HERSTELLUNG VON MINERALWOLLPRODUKTEN

KERAMISCHE FASERN BZW. WOLLEN UND VERFAHREN ZU IHRER HERSTELLUNG

PROCEDURE FOR THE PRODUCTION OF CONTINUOUS BASALT FIBER

CERAMIC FIBERS AND/OR WOOLS AND PROCEDURES FOR YOUR PRODUCTION

PROCEDURE FOR THE PRODUCTION OF MINERALWOLLPRODUKTEN

GLASS COMPOSITION AND THEIR USE

MINERAL WOOL COMPOSITION

MUFFLER WITH A BIOLOGICALLY DEGRADABLE ONE SOUND-ABSORBING ONE FIBER MASS

ROHMATERIAL ZUR HERSTELLUNG VON BASALTFASERN

PROCEDURE FOR MANUFACTURING ISOLATION WOOL

IN SALT SOLUTION SOLUBLE ONE INORGANIC FIBERS

SYNTHETIC GLASS FIBERS

MINERAL FIBRE COMPOSITION

PROCEDURE AND DEVICE FOR MANUFACTURING FROM MINERAL WOOL AND MINERAL WOOL MANUFACTURED

SYNTHETIC GLASS FIBERS

GLASS-FIBER REINFORCED CEMENT PRODUCTS.

MINERAL WOOL COMPOSITION

PROCEDURE FOR THE PRODUCTION OF MINERALWOLLFASERN AND FIBERS OF MEANS OF THIS PROCEDURE MANUFACTURED

PROCEDURE FOR THE PRODUCTION OF INSULATING MATERIALS FROM MINERAL FIBRES

COMPOSITIONS FOR FIBER PRODUCTION AT HIGH TEMPERATURE

IN PHYSIOLOGICAL MEDIUM ITSELF AUFLOSENDE MINERAL FIBRE

PROCEDURE FOR THE PRODUCTION OF GLASSLIKE ARTIFICIAL FIBERS

HIGH TEMPERATURE-STEADY, IN SALT SOLUTION SOLUBLE ONES FIBERS

SYNTHETIC GLASS FIBERS

MINERAL WOOL COMPOSITION WITH IMPROVED HEATPROOF QUALITY AND SOLUBILITY IN PHYSIOLOGICAL LIQUIDS

FIBRE GLASS COMPOSITION

VЕRFАНRЕN ZUМ НЕRSТЕLLЕN VОN ISОLIЕRWОLLЕ

VЕRFАНRЕN ZUМ НЕRSТЕLLЕN VОN ISОLIЕRWОLLЕ

VЕRFАНRЕN ZUМ НЕRSТЕLLЕN VОN ISОLIЕRWОLLЕ

VЕRFАНRЕN ZUМ НЕRSТЕLLЕN VОN ISОLIЕRWОLLЕ

VЕRFАНRЕN ZUМ НЕRSТЕLLЕN VОN ISОLIЕRWОLLЕ

VЕRFАНRЕN ZUМ НЕRSТЕLLЕN VОN ISОLIЕRWОLLЕ

VЕRFАНRЕN ZUМ НЕRSТЕLLЕN VОN ISОLIЕRWОLLЕ

VЕRFАНRЕN ZUМ НЕRSТЕLLЕN VОN ISОLIЕRWОLLЕ

VЕRFАНRЕN ZUМ НЕRSТЕLLЕN VОN ISОLIЕRWОLLЕ

VЕRFАНRЕN ZUМ НЕRSТЕLLЕN VОN ISОLIЕRWОLLЕ

VЕRFАНRЕN ZUМ НЕRSТЕLLЕN VОN ISОLIЕRWОLLЕ

VЕRFАНRЕN ZUМ НЕRSТЕLLЕN VОN ISОLIЕRWОLLЕ

Preparation method of basalt fiber sticks for use in concrete

The present disclosure relates to a preparation method of basalt fiber sticks for use in concrete. The preparation method includes step 1. covering, by a covering unit, a basalt fiber bundle with a cladding layer which is formed from a plastic material melting at a temperature of above 230°C, 5 and step 2. conveying the basalt fiber bundle downstream and extruding, by a pair of cold press molding rollers of a reinforcement molding unit, the cladding layer at a temperature ranging from 170°C to 190°C, thereby forming peripheral reinforcements of the cladding layer, where the reinforcement is a protrusion or a depression; the reinforcement molding unit includes a pair of cold press molding rollers, and each cold press molding roller has a molding pit or a molding bulge in/on 10 outer surface thereof. According to the present disclosure, the technical problem of insufficient connection strength between the basalt fiber and the concrete in the prior art is solved.

High temperature resistant vitreous inorganic fiber

Use of glycerol as an additive for aqueous glues devoid of formaldehyde

The invention relates to the use of glycerol as an additive for aqueous glues which are devoid of formaldehyde and based on acrylic polymer or acrylate, used for the production of mineral-wool based products, in order to improve the resistance to ageing of said mineral-wool based products obtained after the cross-linking of said glue. The products which are based on mineral-wool which is bound with said environmentally friendly glue have the same quality as products which are bound in a conventional manner with phenolic resin. Modifications in the thickness and the flexibility of the products obtained are improved. .

Method of converting asbestos cement into a harmless product

Mineral fibre

Inorganic fibres

Briquettes for mineral fibre production and their use

Biodegradable mineral wool composition

Processes for the production of man-made vitreous fibres

MINERAL WOOL COMPOSITION

L'invention a pour objet une laine minérale susceptible de se dissoudre dans un milieu physiologique, et qui comprend les constituants ci-après selon les pourcentages pondéraux suivants : SiO2 39-44%, de préférence 40-43%, A12O3 16- 27%, de préférence 16-26%, CaO 6 -20%, de préférence 8-18%, MgO 1-5%, de préférence 1-4,9%, Na2O 0-15%, de préférence 2-12%, K2O 0-15%, de préférence 2- 12%, R2O (Na2O + K2O) 10-14,7%, de préférence 10-13,5% P2O5 0-3%, notamment 0- 2% Fe2O3 (fer total) 1,5-15%, notamment 3,2-8%, B2O30-2%, de préférence 0-1%, TiO2 0-2%, de préférence 0,4-1%.

METHOD FOR PRODUCING BONDED MINERAL WOOL AND BINDER THEREFOR

The present invention relates to a binder for the production of bonded mineral wool, wherein a phenol-formaldehyde-binder is applied onto the still hot fibers after the fiberization of a mineral wool, using a binder that comprises hydroxylamine or an amino alcohol with the following general formula (I) wherein R1 and R2 are the same or different from each other, and independently are hydrogen, a linear or branched, saturated or unsaturated aliphatic hydrocarbon with 1 -12 carbon atoms, a saturated or unsaturated alicyclic or heterocyclic hydrocarbon with 5-8 carbon atoms, a carbocyclic or heterocyclic aromatic hydrocarbon with 5 - 1 2 ring members or a chain-like or branched alyklether with 1 -50 alkoxy units or a chain-like or branched alkylamine with 1 -50 alkylamine units; and R3 is a linear or branched, saturated or unsaturated aliphatic hydrocarbon with 1-12 carbon atoms, a saturated or unsaturated alicyclic or heterocyclic hydrocarbon with 5-8 carbon atoms, a carbocyclic or heterocyclic ...

MINERAL FIBRE-BASED PRODUCT, DEVICE FOR THE PRODUCTION OF SAID FIBRES AND PRODUCTION METHOD THEREOF

Produit d'isolation thermique et/ou phonique à base de fibres minérales obtenu par centrifugation interne et étirage par un courant gazeux à haute température et par crêpage, caractérisé en ce qu'il ne contient pas de particules dévitrifiées et/ou infibrées, la longueur des fibres est au plus égale à 2 cm, de préférence inférieure à 1,5 cm, et les fibres présentent un micronaire inférieur ou égal à 4 sous 5 grammes, notamment compris entre 2,5 et 4 sous 5 grammes, ou un micronaire inférieur ou égal à 18 I/mn, notamment compris entre 11 et 15 I/mn, en particulier de l'ordre de 12 à 13 I/mn.

GLASS COMPOSITIONS AND FIBERS MADE THEREFROM

Embodiments of the present invention provides fiberizable glass compositions formed from batch compositions comprising significant amounts of one or more glassy minerals, including perlite and/or pumice.

GLASS FIBRE REINFORCED CEMENTITIOUS PRODUCTS

An alkali-resistant mineral fibre for use as a reinforcement in crementitious products and its method of production are disclosed. The method comprises forming a melt having a composition within the range by weight of about 20 to 30% CaO, about 15 to 20% MgO and the balance SiO2, at a temperature of about 35 to 100 Celcius degrees above the melting point of the composition, atomizing the melt with high pressure air or steam to form fibres, and cooling the fibres for collection. The melt can be formed from the mineral diopside alone or diopside with at least one of up to 10% by weight of sandstone or quartz and up to 20% by weight dolomite.

METHOD OF FORMING BASALT FIBERS WITH IMPROVED TENSILE STRENGTH

HIGH TEMPERATURE RESISTANT VITREOUS INORGANIC FIBER

A temperature resistant vitreous inorganic fiber having a use temperature of up to at least 1000~C, or greater, having after service mechanical integrity, is non-durable (soluble) in physiological fluids, and is produced from a melt containing silica, magnesia, a lanthanide series element-containing compound, and optionally zirconia.

INSULATION BOARD ASSEMBLY

An insulation board assembly includes an insulation board body that has a front face, a back face, a top edge, a bottom edge, and two side edges. The back face has a drainage channel extending from the top edge to the bottom edge. The drainage channel is recessed inward of the back face by a channel depth. A drainage insert is positioned in the drainage channel proximate the bottom edge of the insulation board body. The drainage insert has a front face, a top edge, a bottom edge, and two side edges. The drainage insert defines at least one interior drainage passage extending from the top edge of the drainage insert to the bottom edge of the drainage insert. A reinforcing mesh may be secured to the insulation board body. The insulation board body may consist substantially of mineral fibre insulation.

COMPOSITIONS OF WATER SOLUBLE GLASS

A composition for a water soluble glass is described. The composition is unusual in that it contains no or very small quantities (up to 5 mole %) of alkali metal compounds. The composition typically comprises: P2O5: 30 to 60 mole %; CaO: 20 to 35 mole %; MgO: 15 to 25 mole %; ZnO: 0 to 10 mole %; and optionally may contain: Ag2O or Ag2O3: 0 to 5 mole %; and/or total alkali metal compounds (e.g. Na2O and/or K2O): 0 to 5 mole %. The composition is especially suitable for processing into water soluble glass fibres or wool.

MAN-MADE VITREOUS FIBRES

The invention provides a method of manufacture of man-made vitreous fibres (MMVF) comprising: providing a fiberising apparatus, wherein the fiberising apparatus comprises: a set of at least three rotors each mounted for rotation about a different substantially horizontal axis; wherein each rotor has a driving means; rotating the rotors; wherein the first rotor rotates to give an acceleration field of from 25 to 60 km/s2 and the second and third rotors each rotate to give an acceleration field of at least 125 km/s2, providing a mineral melt, wherein the melt has a composition comprising the following, expressed by wt of oxides: SiO2 in an amount of from 33 to 45 wt%, Al2O3 in an amount of from 16 to 24 wt%, an amount of K2O and/or Na2O, an amount of CaO and/or MgO, wherein the ratio of the amount of Al2O3 to the amount of SiO2 is in the range 0.34-0.73, wherein the ratio of the total amount of K2O and Na2O, to the total amount of CaO and MgO, is less than 1; pouring the melt on to the periphery ...

PROCESS FOR MANUFACTURING VITRIFIED MATERIAL BY MELTING

Vitrified products are manufactured using a melt produced from batch materials comprising 35 to 100 w% man-made mineral fibers produced in a submerged combustion melter.

SIZING COMPOSITION FOR FIBRES, IN PARTICULAR MINERAL FIBRES, BASED ON HUMIC AND/OR FULVIC ACID, AND RESULTING INSULATING PRODUCTS

La présente invention se rapporte à une composition d'encollage exempte de formaldéhyde, pour des produits à base de fibres, notamment minérales telles que des fibres de verre ou de roche, qui comprend au moins un acide humique et/ou un acide fulvique ou un sel de ces acides, au moins un saccharide, et au moins un sel d'ammonium d'acide inorganique. Elle a également pour objet les produits ainsi obtenus, notamment des voiles, des mats, des feutres, des tissus enduits ou imprégnés et des isolants thermiques et/ou acoustiques à base de laine minérale, notamment de verre ou de roche, et leur procédé de fabrication.

MELT COMPOSITION FOR THE PRODUCTION OF MAN-MADE VITREOUS FIBRES

The invention relates to a melt composition for the production of man-made vitreous fibres and man made vitreous fibres comprising the following oxides, by weight of composition: SiO2 39-43 weight % AI2O3 20-23 weight % TiO2 up to 1.5 weight % Fe2O3 5-9 weight %, preferably 5-8 weight % CaO 8-18 weight % MgO 5-7 weight % Na2O up to 10 weight %, preferably 2-7 weight % K2O up to 10 weight %, preferably 3-7 weight % P2O5 up to 2% MnO up to 2% R2O up to 10 weight % wherein the proportion of Fe(2+) is greater than 80% based on total Fe and is preferably least 90%, more preferably at least 95% and most preferably at least 97% based on total Fe.

GLASS COMPOSITION FOR THE MANUFACTURE OF FIBERS AND PROCESS

Improved glass batch compositions and processes of fiberizing the compositions to form fibers are provided. The batch of the present composition can include: 40 - 60 wt% Si02; 15 - 50 wt% A1203; 0 - 30 wt% MgO; 0 - 25 wt% CaO; 0 - 5 wt% Li20; 0 - 9 wt% B203; and 0 - 5 wt% Na20. The fibers formed of the compositions may have a Young's modulus of greater than 82.7 GPa (12 MPSI). The fibers may also have good biosolubility (kdis), of at least 100 ng/cm2/hour.

Biosoluble inorganic fiber

An inorganic fiber having the following composition: 71 wt % to 80 wt % of SiO 2 , 18 wt % to 27 wt % of CaO, 0 to 3 wt % of MgO, and 1.1 wt % to 3.4 wt % of Al 2 O 3 , with the proviso that each amount of ZrO 2 , alkali metal oxides, La 2 O 3 , TiO 2 , ZnO, B 2 O 3 and P 2 O 5 is 0.1 wt % or less, and the total amount of SiO 2 , CaO, MgO and Al 2 O 3 is 99 wt % or more.

Mineral fibres and their use

The invention relates to mineral fibres formed of a composition comprising the following oxides, by weight of composition: —SiO 2 35 to 43.5% —Al 2 O 3 18 to 22% —Fe 2 O 3 9 to 16% —CaO 8 to 17% —MgO 7 to 15% —Na 2 O+K 2 O 1 to 5% —MnO up to 2%.

Systems and methods for manufacturing fibers with enhanced thermal performance

In a method of producing fibers having property enhancing inclusions, a molten material is supplied to a fiber forming apparatus. A controlled amount of particulate is added to the molten material. The molten material with the added particulate is formed into fibers. An undissolved portion of the added particulate forms inclusions in the fibers, the inclusions having an absorption index in a 2-7 μm wavelength region that is greater than a corresponding absorption index of the material.

Glass composition for producing high strength and high modulus fibers

A glass composition including SiO 2 in an amount from about 69.5 to about 80.0% by weight, Al 2 O 3 in an amount from about 5.0 to about 18.5% by weight, MgO in an amount from about 5.0 to about 14.75% by weight, CaO in an amount from 0.0 to about 3.0% by weight, Li 2 O in an amount from about 3.25 to about 4.0% by weight, and Na20 in an amount from 0.0 to about 2.0% by weight is provided. Glass fibers formed from the inventive composition may be used in applications that require high strength, high stiffness, and low weight. Such applications include, but are not limited to, woven fabrics for use in forming wind blades, armor plating, and aerospace structures.

GLASS FIBRE COMPOSITION AND COMPOSITE MATERIAL REINFORCED THEREWITH

A glass fibre of quaternary composition including SiO, AIO, CaO, and MgO, each present in an amount of at least 5 wt. %, and having less than 3.3 wt. % BO, and less than 2.0 wt. % fluorine, characterized by: 22.0 Подробнее

Glass Compositions And Fibers Made Therefrom

Some embodiments of the present invention provide fiberizable glass compositions formed from batch compositions comprising amounts of one or more glassy minerals, including perlite and/or pumice. Some embodiments of the present invention related to glass fibers formed from such batch compositions, and composites and other materials incorporating such glass fibers. 1. A plurality of glass fibers , wherein each glass fiber comprises:{'sub': '2', '53-64 weight percent SiO;'}{'sub': 2', '3, '8-12 weight percent AlO;'}{'sub': '2', '8.5-18 weight percent alkali oxide (RO) component; and'}{'sub': '2', 'a metal oxide (RO) component, wherein the metal oxide component is present in an amount to provide a mass ratio of RO/RO ranging from about 0.15 to about 1.7.'}2. The plurality of glass fibers of claim 1 , wherein the glass fibers have a length of less than about 105 millimeters.3. The plurality of glass fibers of claim 1 , wherein the glass fibers have a length of less than about 13 millimeters.4. The plurality of glass fibers of claim 1 , wherein the glass fibers have a length of greater than about three millimeters.5. The plurality of glass fibers of claim 1 , wherein the glass fibers have a length of greater than about fifty millimeters.6. A fiber glass strand comprising the plurality of glass fibers of .7. A roving comprising the plurality of glass fibers of .8. A yarn comprising the plurality of glass fibers of .9. A woven fabric comprising the plurality of glass fibers of .10. A non-woven fabric comprising the plurality of glass fibers of .11. A polymeric composite comprising:a polymeric material; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the plurality of glass fibers of .'}12. The polymeric composite of claim 11 , wherein the plurality of glass fibers have a length of less than about 105 millimeters.13. The polymeric composite of claim 11 , wherein the plurality of glass fibers have a length of less than about 13 millimeters.14. The polymeric composite of ...

TRANSPARENT COMPOSITE MATERIAL AND A PRODUCTION METHOD THEREFOR

This specification relates to a colorless composite material capable of retaining transparency within a wide temperature range by impregnating glass composition (glass fibers) with inorganic-organic hybrid resin. A colorless composite material according to exemplary embodiments includes glass fibers, and inorganic-organic hybrid resin consisting of inorganic bonds and organic bonds, wherein the inorganic bonds are Si—O—Si bonds or Si—O-M bonds and M denotes a metallic element. 1. A colorless composite material comprising:glass fibers; andinorganic-organic hybrid resin consisting of inorganic bonds and organic bonds,wherein the inorganic bonds are Si—O—Si bonds or Si—O-M bonds, and M denotes a metallic element.2. The material of claim 1 , wherein the Si—O—Si bonds are in a ratio of 30% to 60% by weight.3. The material of claim 1 , wherein a thermooptic coefficient of the inorganic-organic hybrid resin is −5×10/° C.˜+10/° C.4. The material of claim 1 , wherein the Si—O-M bonds are in a ratio of 2% to 20% by weight.5. The material of claim 4 , wherein the metallic element is one of Ti claim 4 , Zr and Al.6. The material of claim 1 , wherein the Si—O-M bond is one of Si—O—Ti claim 1 , Si—O—Zr and Si—O—Al bonds.7. The material of claim 6 , wherein the Si—O-M bond is the Si—O—Ti bond and the Ti is in a ratio of 2% to 20% by weight.8. The material of claim 6 , wherein the Si—O-M bond is the Si—O—Zr bond and the Zr is in a ratio of 2% to 8% by weight.9. The material of claim 6 , wherein the Si—O-M bond is the Si—O—Al bond and the Al is in a ratio of 2% to 10% by weight.10. A colorless composite material comprising:glass fibers; andinorganic-organic hybrid resin consisting of inorganic bonds and organic bonds,wherein the inorganic bonds are M-O-M bonds and M denotes a metallic element.11. The material of claim 10 , wherein the M-O-M bond is Ti—O—Ti bond and the Ti is in a ratio of 2% to 20% by weight.12. The material of claim 10 , wherein the M-O-M bond is Al—O—Al bond and ...

COMPOSITION FOR PREPARING HIGH-PERFORMANCE GLASS FIBER BY TANK FURNACE PRODUCTION

A composition for preparing high-performance glass fiber by tank furnace production comprising in preferred percentage by weight: 57.5˜62.5% of SiO, 14.5˜17.5% of AlO, 13.5˜17.5% of CaO, 6.5˜8.5% of MgO, 0.05˜0.6% of LiO, 0.1˜2% of BO, 0.1˜2% of TiO, 0.1˜2% of NaO, 0.1˜1% of KO and 0.1˜1% of FeOand (CaO+MgO)/MgO>3, with the content of at least one of the three components, AO, BOand TlOhigher than 0.5%, with the composition yielding glass fiber having improved mechanical property, causing the melting and clarification of glass and forming performance of fiber close to those of boron-free E glass, and facilitating industrial mass production by tank furnace processes with manufacturing costs close to those of conventional E glass. 2. The composition of further comprising ZnO claim 1 , whose weight percentage is 0.1˜4% of weight total weight of SiO claim 1 , AlO claim 1 , CaO claim 1 , MgO claim 1 , LiO claim 1 , BOTiO claim 1 , NaO claim 1 , KO and FeO.3. The composition of or wherein the weight percentage of SiOand Al0is 73˜80%.4. The composition of or wherein the weight percentage of CaO and MgO is 20.5˜23.5%.5. The composition of or wherein 2.01≦CaO/MgO≦2.3.6. The composition of or wherein 2.01≦CaO/MgO≦2.1.7. The composition or wherein the weight percentage of NaO claim 1 , KO and LiO is less than 2%.10. The composition of wherein the weight percentage of CaO/MgO is 2.01˜2.3.11. The composition of wherein the weight percentage of CaO/MgO is 2.01˜2.1. This application claims the benefit of Chinese Application 201010176217.X, filed May 19, 2010 and International Application PCT/CN2011/074283, filed May 18, 2011, both of which are incorporated by reference herein.The invention relates generally to compositions for preparing glass fiber, in particular to compositions for preparing high-performance glass fiber by tank furnace production methods.Glass fiber is an inorganic fiber material that is useful to reinforce organic polymer materials that in turn are used to ...

Glass Fiber

There is provided a glass fiber comprising the SiO 2 content is 57.0 to 63.0% by weight; the Al 2 O 3 content is 19.0 to 23.0% by weight; the MgO content is 10.0 to 15.0% by weight; the CaO content is 4.0 to 11.0% by weight; and the total content of SiO 2 , Al 2 O 3 , MgO and CaO is 99.5% by weight or higher based on the total weight.

GLASS COMPOSITION FOR PRODUCING HIGH STRENGTH AND HIGH MODULUS FIBERS

A glass composition including SiOin an amount from 60.0 to 73.01% by weight, AlOin an amount from about 13.0 to about 26.0% by weight, MgO in an amount from about 5.0 to about 12.75% by weight, CaO in an amount from about 3.25 to about 4.0% by weight, LiO in an amount from about 3.25 to about 4.0% by weight, and NaO in an amount from 0.0 to about 0.75% by weight is provided. Glass fibers formed from the inventive composition may be used in applications that require high strength, high stiffness, and low weight. Such applications include, but are not limited to, woven fabrics for use in forming wind blades, armor plating, and aerospace structures. 1. A composition for preparing high strength , light weight glass fibers comprising:{'sub': '2', 'SiOin an amount from about 60.0 to about 73.01% by weight of the total composition,'}{'sub': 2', '3, 'AlOin an amount from about 13.0 to about 26.0% by weight of the total composition,'}MgO in an amount from about 5.0 to about 12.75% by weight of the total composition,CaO in an amount from 0.0 to about 4.0% by weight of the total composition,{'sub': '2', 'LiO in an amount from about 3.25 to about 4.0% by weight of the total composition, and'}{'sub': '2', 'NaO in an amount from 0.0 to about 0.75% by weight of the total composition.'}2. (canceled)3. The glass composition of claim 1 , wherein{'sub': '2', 'SiOis present in an amount from about 63.0 to about 66.0% by weight of the total composition,'}{'sub': 2', '3, 'AlOis present in an amount from about 21.0 to about 26.0% by weight of the total composition,'}MgO is present in an amount from 6.5 to about 8.5% by weight of the total composition,CaO is present in an amount from about 0.0 to about 2.0% by weight of the total composition, and{'sub': '2', 'LiO is present in an amount from about 3.25 to about 3.5% by weight of the total composition.'}4. The glass composition of wherein claim 1 ,MgO is present in an amount from 5.0 to about 10.70% by weight of the total composition.CaO is ...

HIGH REFRACTIVE INDEX GLASS COMPOSITION

A glass composition including SiOin an amount from 30.0 to 40.0% by weight, AlOin an amount from 15.0 to 23.0% by weight, BOin an amount from 0.0 to 15.0% by weight, KO in an amount from 0.0 to 5.0% by weight, LaOin an amount from 0.0 to 30.0% by weight, LiO in an amount from 0.0 to 3.0% by weight, NaO in an amount from 0.0 to 4.0% by weight, NbOin an amount from 0.0 to 10.0% by weight, TiOin an amount from 0.0 to 7.5% by weight, WOin an amount from 0.0 to 10.0% by weight, YOin an amount from 15.0 to 35.0% by weight, and RO (one or more of MgO, CaO, SrO, and BaO) in an amount from 0.0 to 7.5% by weight is provided. Glass fibers formed from the composition have a refractive index between 1.55 and 1.69. 1. A composition for preparing glass fibers having a high refractive index comprising:{'sub': '2', 'SiOin an amount from 30.0 to 40.0% by weight;'}{'sub': 2', '3, 'AlOin an amount from 15.0 to 23.0% by weight;'}{'sub': 2', '3, 'YOin an amount from 15.0 to 35.0% by weight;'}{'sub': 2', '3, 'BOin an amount from 0.0 to 15.0% by weight;'}{'sub': '2', 'KO in an amount from 0.0 to 5.0% by weight;'}{'sub': 2', '3, 'LaOin an amount from 0.0 to 30.0% by weight;'}{'sub': '2', 'LiO in an amount from 0.0 to 3.0% by weight;'}{'sub': '2', 'NaO in an amount from 0.0 to 4.0% by weight;'}{'sub': 2', '5, 'NbOin an amount from 0.0 to 10.0% by weight;'}{'sub': '2', 'TiOin an amount from 0.0 to 7.5% by weight;'}{'sub': '3', 'WOin an amount from 0.0 to 10.0% by weight; and'}RO in an amount from 0.0 to 7.5% by weight, wherein RO is one or more of MgO, CaO, SrO, and BaO.2. The composition of claim 1 , wherein said composition has a ΔT up to about 77° C.3. The composition of claim 1 , wherein said composition has a ΔT from about −170° C. to about 77° C.4. The composition of claim 1 , wherein said composition has a log 3 temperature that is less than about 1443° C.5. The composition of claim 1 , wherein said composition has a liquidus temperature greater than about 1531° C.6. The composition of ...

Composition for high performance glass, high performance glass fibers and articles therefrom

Glass batch compositions for the formation of high-modulus, and high-strength glass fibers as well as fibers suitable for use as textile and reinforcements are disclosed. Fibers formed of the composition are especially suitable for use in high-strength, low-weight applications such as windmill blades and high strength and modulus applications where strength and stiffness are required in the composite. The glass composition is up to about 70.5 weight % SiO, about 24.5 weight % AlO, about 22 weight % alkaline earth oxides and may include small amounts of alkali metal oxides and ZrO. Additionally, glass fibers formed from the inventive composition are non-corrosive or substantially non-corrosive in nature. Due to the non-corrosive nature of the glass fibers, glass fibers made with the inventive composition may be used in applications where the glass fibers or a composite formed from the glass fibers are in contact with a corrosive substance. 1. A high performance glass fiber produced from a composition comprising:{'sub': '2', 'SiOin an amount from about 60.5 to about 70.5 weight percent of the total composition;'}{'sub': 2', '3, 'AlOin an amount from about 4.0 to about 14.0 weight percent of the total composition;'}MgO in an amount from about 5.0 to about 14.0 weight percent of the total composition;CaO in an amount from about 4.0 to about 23.4 weight percent of the total composition; andalkali metal oxides in an amount from about 0 to about 3 weight percent of the total composition,wherein said glass fiber is resistant to corrosion.2. The high performance fiber of claim 1 , further comprising:{'sub': 3', '2', '3', '2', '2', '3, 'less than 4 weight percent of the total composition of at least one compound selected from the group consisting of ZnO, SO, Fluorine, BO, TiOand FeO.'}3. The high performance fiber of claim 1 , wherein said glass has a fiberizing temperature less than about 2650° F. and a ΔT for the glass is at least about 80° F.4. The high performance fiber ...

GLASS COMPOSITION FOR PRODUCING HIGH STRENGTH AND HIGH MODULUS FIBERS

A glass composition including Si02 in an amount from about 70.6 to about 79.6% by weight, AIOin an amount from about 10.0 to 18.5% by weight, MgO m an amount from about 10.0 to about 19.0% by weight, CaO in an amount from about 0.1 to about 5.0% by weight, Li20 in an amount from 0.0 to about 3.0% by weight, and Na0 in an amount from 0.0 to about 3.0% by weight is provided. In exemplary embodiments, the glass composition is free or substantially free of BOand fluorine. The glass fibers have a specific modulus between about 3.40×10J/kg and 3.6×10J/kg. Glass fibers formed from the inventive composition possess exceptionally an exceptionally high modulus and a low density, which make them particularly suitable in applications that require high strength, high stiffness, and low weight, such as wind blades and aerospace structures. 1. A composition for preparing high strength glass fibers comprising:{'sub': '2', 'SiOin an amount from about 70.6 to about 79.6% by weight of the total composition;'}{'sub': 2', '3, 'AlOin an amount from about 10.0 to about 18.5% by weight of the total composition;'}MgO in an amount from about 10.0 to about 19.0% by weight of the total composition;CaO in an amount from about 0.1 to about 5.0% by weight of the total composition;{'sub': '2', 'LiO in an amount from 0.0 to about 3.0% by weight of the total composition; and'}{'sub': '2', 'NaO in an amount from 0.0 to about 3.0% by weight of the total composition.'}2. The composition of wherein{'sub': '2', 'SiOis present in an amount from about 70.6 to about 73.55% by weight of the total composition;'}{'sub': 2', '3, 'AlOis present in an amount from about 10.68 to about 18.5% by weight of the total composition;'}MgO is present in an amount from about 10.0 to about 15.62% by weight of the total composition;CaO is present in an amount from about 0.1 to about 1.7% by weight of the total composition;{'sub': '2', 'LiO is present in an amount from 0.08 to about 3.0% by weight of the total composition; and ...

GLASS COMPOSITION FOR PRODUCING HIGH STRENGTH AND HIGH MODULUS FIBERS

A glass composition including SiOin an amount from about 70.0 to about 78.2% by weight, AlOin an amount from about 18.6 to about 26.2% by weight, MgO in an amount from about 3.1 to about 10.7% by weight, CaO in an amount from 0.0 to about 7.6% by weight, LiO in an amount from about 0.1 to about 5.0% by weight, and NaO in an amount from 0.0 to about 0.2% by weight is provided. In exemplary embodiments, the glass composition is free or substantially free of BOand fluorine. The glass fibers have a specific strength between about 1.6×10J/kg and 2.24×10J/kg and a specific modulus between about 3.3×10J/kg and 3.7×10J/kg. Glass fibers formed from the inventive composition possess exceptionally high specific strength and a low density, which make them particularly suitable in applications that require high strength, high stiffness, and low weight, such as in wind blades and aerospace structures. 1. A composition for preparing high strength , light weight glass fibers comprising:{'sub': '2', 'SiOin an amount from about 70.0 to about 78.2% by weight of the total composition,'}{'sub': 2', '3, 'AlOin an amount from about 18.0 to about 26.2% by weight of the total composition,'}MgO in an amount from about 3.1 to about 10.7% by weight of the total composition,CaO in an amount from 0.0 to about 7.6% by weight of the total composition,{'sub': '2', 'LiO in an amount from about 0.1 to about 5.0% by weight of the total composition, and'}{'sub': '2', 'NaO in an amount from 0.0 to about 0.2% by weight of the total composition.'}2. The composition of wherein:{'sub': '2', 'SiOis present in an amount from about 70.6 to about 78.2% by weight of the total composition and'}{'sub': 2', '3, 'AlOis present in an amount from about 18.6 to about 26.2% by weight of the total composition.'}3. The composition of wherein:{'sub': '2', 'SiOis present in an amount from about 70.6 to about 73.0% by weight of the total composition,'}{'sub': 2', '3, 'AlOis present in an amount from about 18.6 to about 21.0% ...

Glass Compositions And Fibers Made Therefrom

Embodiments of the present invention relate to glass compositions, glass fibers formed from such compositions, and related products. In one embodiment, a glass composition comprises 58-62 weight percent SiO, 14-17 weight percent AlO, 14-17.5 weight percent CaO, and 6-9 weight percent MgO, wherein the amount of NaO is 0.09 weight percent or less. 2. The glass composition of claim 1 , wherein the glass composition is substantially free of BO.3. The glass composition of claim 1 , wherein the glass composition is substantially free of NaO.4. The glass composition of claim 1 , wherein the (MgO+CaO) content is greater than about 21.5 weight percent.5. The glass composition of claim 1 , wherein CaO/MgO ratio on a weight percent basis is greater than about 2.0.6. The glass composition of claim 1 , further comprising 0-1 weight percent KO and 0-2 weight percent LiO.7. The glass composition of claim 6 , wherein the (NaO+KO+LiO) content is less than about 1 weight percent.8. The glass composition of claim 1 , wherein the glass composition is fiberizable claim 1 , has a liquidus temperature of less than about 1250° C. claim 1 , and has a forming temperature of less than about 1300° C. claim 1 , wherein the difference between the forming temperature and the liquidus temperature is at least 50° C.9. A glass fiber formed from the glass composition of .10. The glass fiber of claim 9 , wherein the glass fiber has a Young's modulus greater than about 80 GPa.11. The glass fiber of claim 9 , wherein the glass fiber has a Young's modulus greater than about 85 GPa.12. The glass fiber of claim 9 , wherein the glass fiber has a Young's modulus greater than about 87 GPa.14. The glass composition of claim 13 , wherein the glass composition is substantially free of BO.15. The glass composition of claim 13 , wherein the glass composition is substantially free of NaO.16. The glass composition of claim 13 , wherein the (MgO+CaO) content is greater than about 21.5 weight percent.17. The glass ...

USE OF BORON TO REDUCE THE THERMAL CONDUCTIVITY OF UNBONDED LOOSEFILL INSULATION

A method for manufacturing unbonded loosefill insulation material configured for distribution in a blowing insulation machine is provided. The method includes the steps of establishing apparatus configured for making fibrous materials, the apparatus including structures configured to provide molten materials to fiberizing apparatus and collection apparatus configured to collect the formed fibrous materials, determining whether the formed fibrous material will be further processed as loosefill insulation material or other fibrous products, and formulating a composition of the molten material in response to the determination of whether the formed fibrous material will be further processed as loosefill insulation material or other fibrous products. 1. A method for manufacturing unbonded loosefill insulation material configured for distribution in a blowing insulation machine , the method comprising the steps of:establishing apparatus configured for making fibrous materials, the apparatus including structures configured to provide molten materials to fiberizing apparatus and collection apparatus configured to collect the formed fibrous materials;determining whether the formed fibrous material will be further processed as loosefill insulation material or other fibrous products; andformulating a composition of the molten material in response to the determination of whether the formed fibrous material will be further processed as loosefill insulation material or other fibrous products.2. The method of claim 1 , wherein the composition of the molten material comprises claim 1 , hi weight percent claim 1 , 62.0-69.0% of SiO claim 1 , 0.0-4.0% of AlO claim 1 , 7.0-12.0% of CaO claim 1 , 0.0-5.0% of MgO claim 1 , 5.0-14.0% of BO claim 1 , 13.0-18.0% of NaO and 0.0-3.0% of KO.3. The method of claim 2 , wherein the composition of the molten material comprises additional ingredients selected from the list of potassium claim 2 , iron claim 2 , titanium and strontium oxides.4. The ...

INORGANIC FIBER AND METHOD FOR MANUFACTURING THE SAME

To provide an inorganic fiber that suppresses adverse effects on a human body and living environments, exhibits high biosolubility, and also exhibits excellent heat resistance as a constituent material for a filter material, a sealing material, or the like. The inorganic fiber comprises 30 mass % or more and less than 81 mass % of AlO, more than 19 mass % and 65 mass % or less of MgO and 0 mass % to 40 mass % of SiO, wherein the total content of AlO, MgO and SiOrelative to the entire fiber is 98 mass % or more. 1. An Inorganic fiber comprising 30 mass % or more and less than 81 mass % of AlO , more than 19 mass % and 65 mass % or less of MgO and 0 mass % to 40 mass % of SiO , wherein the total content of AlO , MgO and SiOrelative to the entire fiber is 98 mass % or more.2. The inorganic fiber according to claim 1 , wherein the inorganic fiber is obtained by preparing a water-soluble basic acid aluminum as a raw material of AlO claim 1 , an aqueous magnesium compound as a raw material of MgO and a water-soluble or water-dispersible silicon compound as a raw material of SiO;dissolving in an aqueous medium, in terms of a metal oxide, 30 mass % or more and less than 81 mass % of the water-soluble basic acid aluminum, more than 19 mass % and 65 mass % or less of a water-soluble magnesium compound and 0 mass % to 40 mass % of the water-soluble or water-dispersible silicon compound, relative to the total amount of raw materials, to form an aqueous raw material solution for spinning;spinning the aqueous raw material solution to obtain a crude inorganic fiber; andfiring the crude inorganic fiber.4. A method for producing the inorganic fiber according to claim 1 , comprising:{'sub': 2', '3', '2, 'preparing a water-soluble basic acid aluminum is used as a raw material of AlO, a water-soluble magnesium compound as a raw material of MgO and a water-soluble or a water-dispersible silicon compound as a raw material of SiO;'}dissolving in an aqueous medium, in terms of a metal ...

RAW MATERIAL FOR PRODUCING BASALT FIBRES

The invention relates to a raw material charge for a melt for producing continuous mineral fibers, containing 30% to 70% basalt and/or diabase, 8% to 40% quartz components, in particular quartz sand, and 5% to 30% slag, in particular blast furnace slag, the use thereof and a method of producing continuous mineral fibers from a melt, the melt being formed from raw material comprising 30% to 70% basalt and/or diabase, 8% to 40% quartz components, in particular quartz sand, and 5% to 30% slag, in particular blast furnace slag. 1. Raw material charge for a melt for producing continuous mineral fibers , wherein it contains 30% to 70% basalt and/or diabase , 8% to 40% quartz components , in particular quartz sand , and 5% to 30% slag , in particular blast furnace slag.2. Raw material charge according to claim 1 , wherein it contains 45% to 55% basalt and/or diabase claim 1 , 19% to 34% quartz components claim 1 , in particular quartz sand claim 1 , and 7% to 13% slag claim 1 , in particular blast furnace slag.3. Raw material charge according to claim 1 , wherein it contains 2% to 20% clay claim 1 , in particular clay minerals and admixtures claim 1 , in particular 5% to 12%.4. Raw material charge according to claim 1 , wherein it contains boron compounds claim 1 , in particular boric acid and/or derivatives thereof claim 1 , in particular salts claim 1 , selected from a range with a lower limit of 1% claim 1 , in particular 3% claim 1 , and an upper limit of 10% claim 1 , preferably 5%.5. Raw material charge according to claim 1 , wherein it contains iron compounds selected from a range with a lower limit of 0.1% claim 1 , in particular 0.5% claim 1 , and an upper limit of 10% claim 1 , preferably 1%.6. Raw material charge according to claim 1 , wherein it contains calcium oxide selected from a range with a lower limit of 1% claim 1 , in particular 2% claim 1 , and an upper limit of 10% claim 1 , preferably 4%.7. Raw material charge according to claim 1 , wherein it ...

INORGANIC FIBERS

Provided are inorganic fibers which can exhibit high biosolubility and have excellent heat resistance as the constituting material for a filter material, a sealing material or the like, while exerting minimized effects on the human body or the living environment even when the fibers have an average diameter of 1 μm or less. Inorganic fibers including 35 mass % to 88 mass % of AlO, 3 mass % to 45 mass % of CaO and 5 mass % to 40 mass % of SiO, wherein the total content of AlO, CaO and SiOis 98 mass % or more of the entire fibers. 1. Inorganic fibers comprising 35 mass % to 88 mass % of AlO , 3 mass % to 45 mass % of CaO and 5 mass % to 40 mass % of SiO , wherein the total content of AlO , CaO and SiOis 98 mass % or more of the entire fibers.2. The inorganic fibers according to comprising 39 mass % to 66 mass % of AlO claim 1 , 26 mass % to 42 mass % of CaO and 8 mass % to 28 mass % of SiO claim 1 , wherein the total content of AlO claim 1 , CaO and SiOis 98 mass % or more of the entire fibers.3. The inorganic fibers according to claim 1 , wherein the inorganic fibers are produced by a method comprising:solving water-soluble basic acid aluminum, a water-soluble calcium compound and water-soluble or water-dispersible silicon compound in an aqueous medium to produce an aqueous raw material solution for spinning;spinning the aqueous raw material solution for spinning to obtain crude inorganic fibers; andfiring the crude inorganic fibers.5. The inorganic fibers according to claim 3 , wherein the spinning is conducted by the electrospinning method.6. The inorganic fibers according to claim 4 , wherein the spinning is conducted by the electrospinning method.7. The inorganic fibers according to claim 2 , wherein the inorganic fibers are produced by a method comprising:solving water-soluble basic acid aluminum, a water-soluble calcium compound and water-soluble or water-dispersible silicon compound in an aqueous medium to produce an aqueous raw material solution for spinning; ...

CHEMICALLY RESISTANT GLASS COMPOSITION FOR THE MANUFACTURE OF GLASS REINFORCING STRANDS

The present invention relates to a chemically resistant glass composition for the production of reinforcing strands which comprises the following constituents within the limits defined below, expressed in mol %: SiO67-72%; ZrO5-9.5%, preferably ≧7.5%; RO (R═Na, K and Li) 11-17%; LiO 0-5.5%; KO 0-5.5%; NaO<10%; and CaO 3-9%, the composition furthermore containing less 1% of impurities (AlO, FeO, CrO, TiO, MgO, SrO, BaO and PO) and being free of F. It also relates to the glass strands obtained from this composition and to the composites based on an organic or inorganic material containing such strands. 1. A glass fiber reinforced composite material , comprising:a matrix material; and [{'sub': '2', '67-72 mol % SiO;'}, {'sub': '2', '5-9.5 mol % ZrO;'}, {'sub': 2', '2', '2', '2', '2, '11-17 mol % RO where RO is the sum of NaO, KO and LiO;'}, {'sub': '2', '0-5.5 mol % LiO;'}, {'sub': '2', '2.5-5.5 mol % KO;'}, {'sub': '2', 'less than 10 mol % NaO;'}, '3-9 mol % CaO;', {'sub': 2', '3', '2', '3', '2', '3', '2', '2', '5, 'less than 1% of impurities selected from the group consisting of AlO, FeO, CrO, TiO, MgO, SrO, BaO and PO; and'}, 'being substantially free of F., 'reinforcing fibers formed of2. The glass fiber reinforced composite material of claim 1 , wherein the amounts of NaO claim 1 , KO and CaO satisfy the following relationship:{'br': None, 'sub': 2', '2, '2.5%≦NaO+KO—CaO≦9.5%'}3. The glass fiber reinforced composite material of claim 1 , wherein the difference between the strand forming temperature (T=3) and the liquidus temperature (T) is at least +10° C.4. The glass fiber reinforced composite material of claim 1 , wherein the matrix material is a cementitious materials selected from the group consisting of cement claim 1 , concrete claim 1 , mortar claim 1 , gypsum claim 1 , slag and compounds formed by the reaction between lime claim 1 , silica and water.5. The glass fiber reinforced composite material of claim 1 , wherein the matrix material is a thermoplastic ...

Glass composition for producing high strength and high modulus fibers

A glass composition including SiO 2 in an amount from 74.5 to 80.0% by weight, AI 2 O 3 in an amount from 5.0 to 9.5%>> by weight, MgO in an amount from 8.75 to 14.75% by weight, CaO in an amount from 0.0 to 3.0% by weight, Li 2 O in an amount from 2.0 to 3.25% by weight, Na 2 O in an amount from 0.0 to 2.0% by weight is provided. Glass fibers formed from the inventive composition may be used in applications that require high strength, high stiffness, and low weight. Such applications include woven fabrics for use in forming wind blades, armor plating, and aerospace structures.

Mineral wool board with fillers

A method for manufacturing a mineral wool board, comprising the following steps: providing mineral wool fibers having a fiber length of 50 to 800 μm; providing a binder comprising a mixture of liquid resin and mineral fillers having an average grain size d50 of 10 nm to 250 μm; gluing the fibers with the binder, and compressing the glued fibers using heat and pressure.

MODIFICATION OF ALKALINE EARTH SILICATE FIBRES

A method of making refractory alkaline earth silicate fibres from a melt, including the use as an intended component of alkali metal to improve the mechanical properties of the fibre in comparison with a fibre free of alkali metal. 1. A method of making refractory alkaline earth silicate fibres comprising less than 10 wt % alumina from a melt , comprising the inclusion as an intended melt component of alkali meta to improve the mechanical and/or thermal properties of the fibre.225-. (canceled)26. Alkaline earth silicate fibres having a composition comprising >15% by weight MgO and comprising as an additive alkali metal (M) comprising predominantly lithium in the amount expressed as the oxide MO 0.2 mol % to 2.5 mol %.27. Fibres claim 26 , as claimed in claim 26 , in which MO is present in an amount 0.25 mol % to 2.5 mol %.28. Fibres claim 26 , as claimed in claim 26 , in which MO is present in an amount greater than or equal to 0.3 mol % to 2 mol %.29. Fibres claim 26 , as claimed in claim 26 , in which MO is present in an amount greater than or equal to 0.4 mol % to less than 1.5 mol %.30. Fibres claim 26 , as claimed in claim 26 , in which MO is present in an amount greater than or equal to 0.5 mol % to less than 1 mol %.31. Fibres claim 30 , as claimed in claim 30 , in which MO is present in an amount less than 0.75 mol %.33. Fibres claim 32 , as claimed in claim 32 , in which MO is present in an amount 0.25 moil % to 2.5 mol %.34. Fibres claim 33 , as claimed in claim 33 , in which MO is present in an amount greater than or equal to 0.3 mol % to 2 mol %.35. Fibres claim 34 , as claimed in claim 34 , in which MO is present in an amount greater than or equal to 0.4 mol % to less than 1.5 mmol %.36. Fibres claim 35 , as claimed in claim 35 , in which MO is present in an amount greater than or equal to 0.5 mol % to less than 1 mol %.37. Fibres claim 36 , as claimed in claim 36 , in which MO is present in an amount less than 0.75 mol %. This application is a ...

Glass Fiber

There is provided a glass fiber comprising the SiO 2 content is 57.0 to 63.0% by weight; the Al 2 O 3 content is 19.0 to 23.0% by weight; the MgO content is 10.0 to 15.0% by weight; the CaO content is 4.0 to 11.0% by weight; and the total content of SiO 2 , Al 2 O 3 , MgO and CaO is 99.5% by weight or higher based on the total weight.

BRIQUETTES

A briquette for use as a mineral charge in a cupola furnace for the production of mineral wool fibres is produced by 113.-. (canceled)14. A method of producing a briquette , suitable for use as a mineral charge in a cupola furnace for the production of mineral wool fibres , said method comprising: a) recycled waste mineral wool,', 'b) cement, and', 'c) at least 10 parts by dry weight of sugar(s) with respect to 100 parts by dry weight of the cement; and, 'forming a mouldable mixture comprising'}moulding and curing the mouldable mixture to form the briquette.15. The method of claim 14 , wherein the mouldable mixture comprises 10 to 40 parts by dry weight of sugar(s) per 100 parts by dry weight of cement.16. The method of claim 14 , wherein the cement is selected from the group consisting of Portland cement claim 14 , alumina cement and mixture thereof.17. The method of claim 14 , wherein the sugar(s) are selected from the group consisting of dextrose claim 14 , fructose claim 14 , sucrose and high fructose corn syrup.18. The method of claim 14 , wherein the recycled waste mineral wool comprises waste mineral wool comprising uncured sugar containing binder wherein the uncured sugar containing binder is selected from:i) an uncured sugar containing binder comprising reducing sugar(s) and nitrogen-containing compound(s);ii) an uncured sugar containing binder comprising curable reaction product(s) of reducing sugar(s) and nitrogen-containing compound(s); andiii) an uncured sugar containing binder comprising reducing sugar(s), nitrogen-containing compound(s) and curable reaction product(s) of reducing sugar(s) and nitrogen-containing compound(s).19. The method of claim 14 , wherein the recycled waste mineral wool comprises waste mineral wool comprising cured binder claim 14 , wherein the cured binder comprises nitrogenous polymer claim 14 , wherein the cured binder comprises greater than 2% by mass and less than 8% by mass nitrogen claim 14 , and wherein the cured binder ...

FOAM

A foamed body that is a porous foamed body including inorganic fibers other than asbestos, and having a compressive stress when compressed at normal temperature at a compression ratio of 80% of 0.1 MPa or less and a recovery ratio when compressed at normal temperature at a compression ratio of 80% of 50% or more. 1. A foamed body that is a porous foamed body comprising inorganic fibers other than asbestos and having a compressive stress when compressed at normal temperature at a compression ratio of 80% of 0.1 MPa or less and a recovery ratio when compressed at normal temperature at a compression ratio of 80% of 50% or more.2. The foamed body according to claim 1 , having an apparent Young's modulus when compressed at normal temperature at a compression ratio of 80% of 1 MPa or less.3. The foamed body according to claim 1 , having a bulk density of 0.005 to 0.1 g/cmat normal temperature.4. The foamed body according to claim 1 , wherein a product [MPa·g/cm] of a bulk density and a compressive stress when compressed at normal temperature at a compression ratio of 40 to 80% is 0.3 or less.5. The foamed body according to claim 1 , wherein the inorganic fibers are glass fibers.6. A foamed body that is a porous foamed body comprising inorganic fibers other than asbestos claim 1 , wherein all of recovery ratios when compressed at normal temperature at each compression ratio in a range of 0 to 90% are 80% or more. The invention relates to an inorganic fibrous foamed body.An inorganic fibrous foamed body is produced by a method in which an aqueous dispersion of inorganic fibers is foamed, and the resulting bubble-containing aqueous dispersion is shaped, followed by drying. The inorganic fibrous foamed body has elasticity similar to that of foamed polyurethane or foamed polyethylene, and is light, has excellent thermal insulation performance and sound absorbing property and is nonflammable, and hence it can be used as a heat-insulating element for high-temperature portions of ...

Glass Compositions, Fiberizable Glass Compositions, And Glass Fibers Made Therefrom

The present invention relates generally to glass compositions incorporating rare earth oxides. In one embodiment, a glass composition suitable for fiber forming comprises 51-65 weight percent SiO, 12.5-19 weight percent AlO, 0-16 weight percent CaO, 0-12 weight percent MgO, 0-2.5 weight percent NaO, 0-1 weight percent KO, 0-2 weight percent LiO, 0-3 weight percent TiO, 0-3 weight percent ZrO, 0-3 weight percent BO, 0-3 weight percent PO, 0-1 weight percent FeO, at least one rare earth oxide in an amount not less than 0.05 weight percent, and 0-11 weight percent total other constituents. In some embodiments, the at least one rare earth oxide comprises at least one of LaO, YO, ScO, and NdO. The at least one rare earth oxide is present in an amount of at least 1 weight percent in some embodiments. The at least one rare earth oxide, in some embodiments, is present in an amount of at least 3 weight percent. The glass compositions can be used to form glass fibers which can be incorporated into a variety of other fiber glass products (e.g., strands, rovings, fabrics, etc.) and incorporated into various composites. 1. A glass composition suitable for fiber forming comprising:{'sub': '2', 'SiO51-65 weight percent;'}{'sub': 2', '3, 'AlO12.5-19 weight percent;'}CaO 0-16 weight percent;MgO 0-12 weight percent;{'sub': '2', 'NaO 0-2.5 weight percent;'}{'sub': '2', 'KO 0-1 weight percent;'}{'sub': '2', 'LiO 0-2 weight percent;'}{'sub': '2', 'TiO0-3 weight percent;'}{'sub': 2', '3, 'BO0-3 weight percent;'}{'sub': 2', '5, 'PO0-3 weight percent;'}{'sub': 2', '3, 'FeO0-1 weight percent;'}at least one rare earth oxide in an amount not less than 0.05 weight percent; andother constituents 0-11 weight percent total.2. The glass composition of claim 1 , wherein MgO is present in amount up to about 9 weight percent.3. The glass composition of claim 1 , wherein the MgO content is between about 6 and about 9 weight percent.4. The glass composition of claim 1 , wherein the CaO content is ...

MANUFACTURING OF CONTINUOUS MINERAL FIBERS

Continuous basalt fibers are produced by melting basalt rock in a submerged combustion melter, and by forming said melt into continuous basalt fibers. 1. Process for the manufacturing of continuous mineral fibers , comprising the steps of:introducing a solid batch material for preparation of continuous mineral fibers into a melter;melting the solid batch material in the melter by submerged combustion to form a liquid melt;forming at least a portion of the liquid melt into continuous mineral fibers.2. The process of wherein the raw material comprises 45.0-60.0 wt % SiO2 claim 1 , 12.0-25.0 wt % Al2O3 claim 1 , 5.0-25.0 wt % tot iron oxide expressed as Fe2O3 claim 1 , total alkali of 2.0-6.0 wt % claim 1 , 5.0-25.0 wt % CaO claim 1 , 4.0-25.0 wt % MgO and 0.0-5.0 wt claim 1 , TiO2 and trace amounts of other oxides to add up to 100%.3. The process of wherein the raw material is basalt rock and the obtained continuous mineral fibers are basalt fibers.4. The process of claim 1 , wherein the melting chamber walls comprise double steel walls separated by circulating cooling liquid claim 1 , preferably water.5. The process of claim 1 , wherein heat is recovered from the hot fumes and/or from the cooling liquid.6. The process of claim 1 , wherein heat is recovered from the hot fumes to preheat the raw materials.7. The process of claim 1 , wherein part at least of the melt is withdrawn continuously or batchwise from the melter.8. The process of claim 1 , wherein the melter comprises at least one submerged burner claim 1 , and the said at least one submerged burner is controlled such as to maintain the melt in a turbulent state such that the volume of the turbulent melt is at least 8% claim 1 , preferably at least 10% claim 1 , more preferably at least 15% higher than the level the melt would be at if no burners are firing.9. The process of claim 8 , wherein it is operated such that no significant foam layer is generated over the top of the melt level.10. The process of claim ...

METHOD AND COMPOSITION FOR DEPOLYMERIZATION OF CURED EPOXY RESIN MATERIALS

A cured epoxy resin material is depolymerized by using a composition including a compound represented by the chemical formula of XOY(wherein X is hydrogen, alkali metal or alkaline earth metal, Y is halogen, m is a number satisfying 1≦m≦8 and n is a number satisfying 1≦n≦6), and a reaction solvent, wherein X is capable of being dissociated from XOYand Y radical is capable of being produced from XOYin the reaction solvent. It is possible to carry out depolymerization of a cured epoxy resin material, for example, at 200° C., specifically 100° C. or lower, and to reduce a processing cost and an energy requirement. It is also possible to substitute for a reaction system using an organic solvent as main solvent, so that the contamination problems caused by the organic solvent functioning as separate contamination source may be solved and environmental contamination or pollution may be minimized. 1. A composition for depolymerization of a cured epoxy resin material , comprising{'sub': m', 'n, 'a compound represented by a chemical formula of XOYwherein X is hydrogen, alkali metal or alkaline earth metal, Y is halogen, m is a number satisfying 1≦m≦8 and n is a number satisfying 1≦n≦6; and a reaction solvent;'}{'sub': m', 'n', 'm', 'n, 'wherein X is capable of being dissociated from XOYand Y radical is capable of being produced from XOYin the reaction solvent.'}2. The composition for depolymerization of a cured epoxy resin material according to claim 1 , wherein the reaction solvent has a dielectric constant of at least about 65 or at least about 70 or at least about 75 or at least about 80.3. The composition for depolymerization of a cured epoxy resin material according to claim 1 , wherein the reaction solvent is a HO-based reaction solvent that comprises HO and has a dielectric constant of at least about 65 or at least about 70 or at least about 75 or at least about 80.4. The composition for depolymerization of a cured epoxy resin material according to claim 3 , wherein ...

MINERAL FIBER COMPOSITIONS HAVING ENHANCED BIOPERSISTENT PROPERTIES AND METHODS FOR MAKING AND USING THE SAME

Described herein are mineral fiber compositions having enhanced characteristics, such as biopersistence and resistance to heat induced shrinkage. Also described are methods for making and using the same. Such compositions may comprise manganese oxide and aluminum oxide. 1. A composition comprising mineral fibers wherein: manganese oxide; and', 'aluminum oxide;, 'the mineral fibers comprise;'}wherein the manganese oxide is present in an amount from about 7 to about 10%, based on the total weight of the mineral fiber.2. The composition according to claim 1 , wherein the aluminum oxide is present in an amount greater than about 17% claim 1 , based on the total weight of the mineral fiber.3. The composition according to claim 1 , wherein the aluminum oxide is present in an amount between 17.5% to 21.0% claim 1 , based on the total weight of the mineral fiber.4. The composition according to claim 1 , wherein the mineral fiber comprises SiOpresent in an amount between 35.0% to 41.0% claim 1 , based on the total weight of the mineral fiber.5. The composition according to claim 1 , wherein the mineral fiber comprises FeOT present in an amount between 0.20% to 2.00% claim 1 , based on the total weight of the mineral fiber.6. The composition according to claim 1 , wherein the mineral fiber comprises MgO present in an amount between 5% to 9% claim 1 , based on the total weight of the mineral fiber.7. The composition according to claim 1 , wherein the mineral fiber comprises CaO present in an amount between 18% to 25% claim 1 , based on the total weight of the mineral fiber.8. The composition according to claim 1 , wherein the mineral fiber comprises KO present in an amount between 1.0% to 2.0% claim 1 , based on the total weight of the mineral fiber.9. The composition according to claim 1 , wherein the mineral fiber comprises about 40 wt. % of SiOand about 18.9 wt. % of AlO.10. The composition according to claim 9 , wherein the mineral fiber further comprises about 8.65 wt. % ...

BORON AND FLUORINE-FREE GLASS FIBER COMPOSITES

This invention discloses a kind of boron and fluorine-free fiberglass composite with its characteristic that it has the following compounds under particular mix ratio: SiO, AlO, SiO+AlO, CaO, MgO, TiO, ZnO, NaO+KO and FeO. The preferential process of this invention is: selection of mineral→grinding of mineral→compounding as per ratio→melting in furnace→outflow from platinum bushing→fiberizing→coating of infiltrating liquid→protofilament drying. Compared with the traditional E fiberglass, the composite of this invention has better mechanical performance (tensile strength increased by over 15% and elastic modulus increased by over 5%) and better corrosion resistance (resistance of acid and alkali increased by 20 times); its forming temperature (<1280° C.) and forming range (>80° C.) are proper with good fiberizing performance, which can be produced in large scale. This invention relates to continuous glass fibers, more particularly, high-performance glass fibers having glass composites that are boron and fluorine free.Fiberglass is an important inorganic nonmetal reinforced material, and it will form glass fiber reinforced composites with excellent performance by compositing with various resins, which will be widely used in civil construction, communication and transportation, electronics, machinery, chemistry, etc. At present, there have been thousands of varieties and specifications of fiberglass with more than 50 thousand of applications. Among various fiber reinforced products, the glass fiber reinforced composites have accounted more than 85% of the total output.E fiber was firstly produced by Owens Corning Company in America. At present, America and Europe are still the main consumption regions of fiberglass in the world. Though the fiberglass industry starts later in China, it develops rapidly. In 2004, the annual output of fiberglass in China had exceeded that in America, ranking the first place of the world; in 2010, the annual output of fiberglass in China ...

Use of MgO, AnO, and Rare Earth Oxides for Making Improved Low Dielectric Fibers with Improved Low Thermal Expansion Coefficient for High Boron Aluminosilicate Compositions

New glass compositions and applications thereof are disclosed. A glass composition as described herein can include 50 to 55 weight percent SiO, 17 to 26 weight percent BO, 13 to 19 weight percent AlO, 0 to 8.5 weight percent MgO, 0 to 7.5 weight percent ZnO, 0 to 6 weight percent CaO, 0 to 1.5 weight percent LiO, 0 to 1.5 weight percent F, 0 to 1 weight percent NaO, 0 to 1 weight percent FeO, 0 to 1 weight percent TiO, and 0 to 8 weight percent of other constituents. Also described herein are glass fibers formed from such compositions, composites, and articles of manufacture comprising the glass compositions and/or glass fibers. 1. A glass composition suitable for fiber forming comprising:{'sub': '2', 'SiOin an amount from 50 to 55 weight percent;'}{'sub': 2', '3, 'BOin an amount from 18 to 26 weight percent;'}{'sub': 2', '3, 'AlOin an amount from 13 to 19 weight percent;'}MgO in an amount from 0 to 8.5 weight percent;ZnO in an amount from 0 to 7.5 weight percent;CaO in an amount from 0 to 4 weight percent;{'sub': '2', 'LiO in an amount from 0 to 1 weight percent;'}{'sub': '2', 'Fin an amount from 0 to 1.5 weight percent;'}{'sub': '2', 'NaO in an amount from 0 to 1 weight percent;'}{'sub': 2', '3, 'FeOin an amount from 0 to 0.6 weight percent;'}{'sub': '2', 'TiOin an amount from 0 to 1 weight percent; and'}{'sub': 2', '3, 'one or more rare earth oxides (REO) in an amount from 0 to 8 weight percent total.'}2. The composition of claim 1 , wherein the SiOcontent is from 51 to 54 weight percent.3. (canceled)4. The composition of claim 1 , wherein the BOcontent is from 19 to 24 weight percent.5. The composition of claim 1 , wherein the AlOcontent is from 14 to 18 weight percent.6. (canceled)7. The composition of claim 1 , wherein the MgO content is from 2 to 8.5 weight percent.8. The composition of claim 1 , wherein the AlO+MgO content is from 14 to 26.5 weight percent.9. (canceled)10. The composition of claim 1 , wherein the ZnO content is from greater than 0 to 5 ...

DEVICE FOR MODIFYING THE TEMPERATURE OF A FIBRE-FORMING PLATE

A fibre forming device for fabricating mineral fibres, includes a fibre forming spinner wheel pierced to enable centrifugal fabrication of the fibres, the fibre forming device including at least one annular burner producing an annular gas flow to stretch the fibres and an evacuation system for evacuating smoke created by the burner, the device further including a system adapted to vary the temperature of the spinner wheel, the temperature variation system being a device for circulation of air between the annular burner and the evacuation system to control the smoke evacuation flow. 1. A fibre forming device for fabricating mineral fibres , comprising a fibre forming spinner wheel pierced to enable fabrication of fibres by internal centrifuging , the fibre forming device comprising at least one annular burner producing an annular gas flow to stretch the fibres and an evacuation system for evacuating smoke created by said burner , wherein the fibre forming device further comprises a system adapted to vary the temperature of said fibre forming spinner wheel comprising an air circulation device adapted to control the smoke evacuation flow.2. The fibre forming device according to claim 1 , wherein the fibre forming spinner wheel comprises an annular wall pierced by a plurality of orifices extended laterally by a top part and a bottom part claim 1 , said air circulation device being adapted to modify locally the temperature at a point of said spinner wheel.3. The fibre forming device according to claim 2 , wherein the air circulation device includes a main pipe having a first end connected to a first secondary pipe used as an air outlet and a second end connected to a second secondary pipe in which the air enters claim 2 , said air circulation device further comprising a system adapted to vary the flow adapted to generate an additional flow in the main pipe adding to or opposing the evacuation flow.4. The fibre forming device according to claim 3 , wherein the means for ...

BIOACTIVE GLASS COMPOSITIONS

A silicate-based glass composition includes: 50-70 wt. % SiO, 0.01-10 wt. % PO, 10-30 wt. % NaO, 0.01-10 wt. % CaO, 0.01-10 wt. % MO, and 15-30 wt. % RO, such that MO is the sum of MgO, CaO, SrO, BeO, and BaO, and RO is the sum of NaO, KO, LiO, RbO, and CsO. 1. A silicate-based glass composition , comprising:{'sub': '2', '50-70 wt. % SiO,'}{'sub': 2', '5, '0.01-10 wt. % PO,'}{'sub': '2', '10-30 wt. % NaO,'}0.01-10 wt. % CaO,0.01-10 wt. % MO, and{'sub': '2', '15-30 wt. % RO,'}wherein MO is the sum of MgO, CaO, SrO, BeO, and BaO, and{'sub': 2', '2', '2', '2', '2', '2, 'wherein RO is the sum of NaO, KO, LiO, RbO, and CsO.'}2. The glass composition of claim 1 , further comprising:{'sub': '2', '0.01-10 wt. % KO, and'}0.01-5 wt. % MgO.3. The glass composition of claim 1 , further comprising:{'sub': 2', '3, '0-10 wt. % AlO,'}0-10 wt. % ZnO,{'sub': 2', '3, '0-10 wt. % BO, and'}{'sub': '2', '0-5 wt. % LiO.'}4. The glass composition of claim 1 , configured to have a viscosity of at least 100-poise (P) at temperatures in a range of 1000° C. to 1500° C. claim 1 , and a liquidus temperature in a range of 900° C. to 1200° C.5. A fiber filament comprising the glass composition of claim 1 , having a diameter in a range of 5 μm to 25 μm.6. The fiber filament of claim 5 , further comprising: a biopolymer coating including at least one of: polylactic acid (PLA) claim 5 , polyglycolic acid (PGA) claim 5 , co-polymers thereof (PLGA) claim 5 , poly D claim 5 ,L-lactic acid (PDLLA) claim 5 , poly 3-hydroxybutyrate (P(3HB)) claim 5 , alginate claim 5 , polycaprolactone (PCL) claim 5 , or polyvinyl-alcohol (PVA).7. A yarn comprising at least one fiber filament of claim 6 , where the yarn has at least 50 holes.8. The glass composition of claim 1 , further comprising:hydroxyapatite formation within seven days of immersion in simulated body fluid (SBF).9. The glass composition of claim 8 , wherein the hydroxyapatite formation comprises:granular spherical crystals having at least one size ...

Apparatus and Process for Producing Fiber from Igneous Rock

Methods and apparatus for producing fibers from igneous rock, including basalt include heating igneous rock by electrical conductive coils to achieve an homogenous melt and forming homogenous fibers from the melt. 1. A method of producing fibers from igneous rock , said method comprising:adding a volume of crushed igneous rock to a furnace chamber, wherein the furnace chamber is at least partially surrounded in a first electrical induction coil;applying alternating current to the first induction coil, effective to heat the volume of crushed igneous rock added to the furnace chamber and to produce a homogenous rock melt in at least a portion of the volume of igneous rock; andpassing at least a part of the homogenous rock melt portion through a fiber forming chamber and subsequently passing at least a portion of the volume of igneous rock from the fiber forming chamber through fiber forming orifices under controlled temperature effective to produce fibers, wherein the fiber forming chamber is at least partially surrounded by a second electrical induction coil and the temperature of the homogenous rock melt portion in the fiber forming chamber is controlled at least in part by the power and frequency of electrical current in the second induction coil.2. The method of claim 1 , wherein the controlled temperature at the fiber forming orifices is controlled to within 20° C. to 70° C. of a target temperature.3. The method of claim 1 , wherein the controlled temperature at the fiber forming orifices is controlled to within 30° C. to 60° C. of a target temperature.4. The method of claim 1 , further comprising passing at least a portion of said homogenous rock melt portion through a conditioning chamber at least partially surrounded by in a third electrical induction coil and cooling the homogenous rock melt portion effective to produce a laminar flow in at least a portion of the conditioning chamber prior to passing the homogenous rock melt portion into the fiber forming ...

GLASS FIBER WITH PROPERTIES OF HIGH STRENGTH, ENERGY SAVING, ENVIRONMENT PROTECTING AND LOW VISCOSITY, PRODUCTION METHOD THEREOF AND COMPOSITE MATERIAL CONTAINING THE SAME

A glass fiber which features high strength, energy saving, emission reduction, environmental protection and low viscosity, whose nominal diameter goes between 5-13 μm, the deviation value of the diameter of the said glass fiber is within ±15% of the nominal diameter, characterized in that: the said glass fiber contains AlO, SiO, MgO, CaO, FeOand NaO, wherein, calculated as per weight percentage, the said glass fiber contains AlO20-39%, FeO0.01-3%, NaO 0.01-8.8%, BO0-10%, MgO 7-20% and FO 0%, wherein the content of SiOis 1.9-4.1 times that of CaO, and the content of CaO is 1-1.8 time(s) that of MgO. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. A glass fiber whose nominal diameter goes between 5-13 μm , the deviation value of the diameter of the said glass fiber is within ±15% of the nominal diameter , characterized in that:{'sub': 2', '3', '2', '2', '3', '2', '2', '3', '2', '3', '2', '2', '3', '2', '2, 'the said glass fiber contains AlO, SiO, MgO, CaO, FeOand NaO, wherein, calculated as per weight percentage, the said glass fiber contains AlO20-39%, FeO0.01-3%, NaO 0.01-8.8%, BO0-10%, MgO 7-20% and FO 0%, wherein the content of SiOis 1.9-4.1 times that of CaO, and the content of CaO is 1-1.8 time(s) that of MgO.'}11. The glass fiber whose nominal diameter goes between 5-13 μm claim 10 , the deviation value of the diameter of the said glass fiber is within ±15% of the nominal diameter as set forth in claim 10 , characterized in that: when its diameter is ≦9 μm claim 10 , the breaking strength is 0.45-1.3 N/tex.12. The glass fiber whose nominal diameter goes between 5-13 μm claim 10 , the deviation value of the diameter of the said glass fiber is within ±15% of the nominal diameter as set forth in claim 10 , characterized in that: calculated as per weight percentage claim 10 , the said glass fiber contains AlO26-39%.13. A glass fiber composite material claim 10 , which contains plastic matrix ...

Glass Compositions And Fibers Made Therefrom

Embodiments of the present invention relate to glass compositions, glass fibers formed from such compositions, and related products. In one embodiment, a glass composition comprises 58-62 weight percent SiO, 14-17 weight percent AlO, 14-17.5 weight percent CaO, and 6-9 weight percent MgO, wherein the amount of NaO is 0.09 weight percent or less. 2. The glass composition of claim 1 , wherein the glass composition is substantially free of BO.3. The glass composition of claim 1 , wherein the glass composition is substantially free of NaO.4. The glass composition of claim 1 , wherein the (MgO+CaO) content is greater than 21.5 weight percent.5. The glass composition of claim 1 , further comprising at least one rare earth oxide in an amount between about 0.1 and 3.0 weight percent.6. The glass composition of claim 1 , wherein the glass composition is fiberizable claim 1 , has a liquidus temperature of less than 1250° C. claim 1 , and has a forming temperature of less than 1300° C. claim 1 , wherein the difference between the forming temperature and the liquidus temperature is at least 50° C.7. A glass fiber formed from the glass composition of .8. The glass fiber of claim 7 , wherein the glass fiber has a Young's modulus greater than 80 GPa.9. The glass fiber of claim 7 , wherein the glass fiber has a Young's modulus greater than 85 GPa.10. The glass fiber of claim 7 , wherein the glass fiber has a Young's modulus greater than 87 GPa.12. The glass composition of claim 11 , wherein the glass composition is substantially free of NaO.13. The glass composition of claim 11 , wherein the (MgO+CaO) content is greater than 21.5 weight percent.14. The glass composition of claim 11 , further comprising at least one rare earth oxide in an amount between about 0.1 and 3.0 weight percent.15. The glass composition of claim 11 , wherein the glass composition is fiberizable claim 11 , has a liquidus temperature of less than 1250° C. claim 11 , has a forming temperature of less than 1300° ...

YOSHIOKAITE GLASS-CERAMICS OBTAINED FROM GLASS FRITS

A glass ceramic material is disclosed that includes a residual glass, and a crystalline phase that includes a yoshiokaite phase. The yoshiokaite phase constitutes a main crystalline phase of the glass ceramic material. A method for making a glass ceramic material is also disclosed that includes heat treating frit glass to form the glass ceramic material, wherein the frit glass comprises: SiOfrom 15 mol % to 37 mol %; AlOfrom 40 mol % to 47 mol %; and CaO from 20 mol % to 30 mol %; 1. A glass ceramic material , comprising:an amorphous glass phase; anda crystalline phase comprising a yoshiokaite phase,wherein the yoshiokaite phase constitutes a main crystalline phase of the glass ceramic material.2. The glass ceramic material of claim 1 , wherein the crystalline phase comprises one or more of an anorthite phase claim 1 , a gehlenite phase claim 1 , a nepheline phase claim 1 , and a cubic zirconia phase.3. The glass ceramic material of claim 1 , wherein the yoshiokaite phase comprises greater than or equal to 55 wt. % of the crystalline phase.4. The glass ceramic material of claim 1 , wherein the yoshiokaite phase comprises greater than or equal to 80 wt. % of the crystalline phase.5. The glass ceramic material of claim 1 , wherein the yoshiokaite phase comprises greater than or equal to 90 wt. % of the crystalline phase.6. The glass ceramic material of claim 1 , wherein the yoshiokaite phase comprises yoshiokaite crystals having an average crystal size from greater than or equal to 100 nm to less than or equal to 160 nm.7. The glass ceramic material of claim 1 , wherein the yoshiokaite phase comprises yoshiokaite crystals having an average crystal size from greater than or equal to 130 nm to less than or equal to 160 nm.8. The glass ceramic material of claim 1 , wherein the glass ceramic material is comprised of greater than or equal to 80 wt. % of the crystalline phase.9. The glass ceramic material of claim 1 , wherein the glass ceramic material is comprised of ...

HIGH PERFORMANCE FIBERGLASS COMPOSITION

A glass composition is provided that includes about 55.0 to 60.4% by weight SiO, about 19.0 to 25.0% by weight AlO, about 8.0 to 15.0% by weight MgO, about 7 to 12.0% by weight CaO, less than 0.5% by weight LiO, 0.0 to about 1.0% by weight NaO, and 0 to about 1.5% by weight TiO. The glass composition has a fiberizing temperature of no greater than about 2,500° F. Glass fibers formed from the inventive composition may be used in applications that require high stiffness, and low weight. Such applications include woven fabrics for use in forming wind blades and aerospace structures. 1. A glass composition comprising:{'sub': '2', 'SiOin an amount from 55.0 to 65.0% by weight;'}{'sub': 2', '3, 'AlOin an amount from 19.0 to 25.0% by weight;'}CaO in an amount from 7 to 12.0% by weight;MgO in an amount from 8.0 to 15.0% by weight;{'sub': '2', 'NaO in an amount from 0 to 1.0% by weight;'}{'sub': '2', 'LiO in an amount less than 0.5% by weight; and'}{'sub': 2', '2', '3', '2', '2', '3', '2', '3, 'TiOin an amount from 0.0 to 1.5% by weight, expressed as percentages by weight based on the weight of the entire composition, wherein the weight percent ratio of AlO/MgO is less than 2.0, wherein the combined amounts of SiO, AlO, MgO, and CaO is at least 98% by weight and less than 99.5% by weight, wherein said glass composition is essentially free of BO, and wherein said glass composition has a fiberizing temperature no greater than 2,500° F.'}2. The glass composition according to claim 1 , wherein the combined amounts of MgO and CaO is greater than 20% by weight.3. The glass composition according to claim 1 , wherein the combined amounts of MgO and CaO is less than 22% by weight.4. The glass composition according to claim 1 , wherein said composition comprises 19.5 to 21% by weight AlO.5. The glass composition according to claim 1 , wherein the weight percent ratio of AlO/MgO is no greater than 1.8.6. The glass composition according to claim 1 , wherein said composition comprises ...

MINERAL WOOL

A method of making mineral wool fibers comprising: 115.-. (canceled)16. A method of making mineral wool fibers comprising:{'sub': '2', '30 to 55 wt % SiO, and'}{'sub': 2', '3, '10 to 30 wt % AlO, and'}{'sub': 2', '3, '4 to 14 wt % total iron expressed as FeO, and'}a combination selected from:{'sub': 2', '2, 'a) 20 to 35 wt % of the combination of CaO and MgO; and less than 8 wt % of the combination of NaO and KO; and'}{'sub': 2', '2, 'b) 8 to 23 wt % of the combination of CaO and MgO; and 4 to 24 wt % of the combination of NaO and KO;'}the method comprising:introducing mineral batch materials in to a melter, melting the mineral batch materials to provide a melt and fiberizing the melt to form the mineral wool fibers,wherein the mineral batch materials introduced in to the melter comprise a first batch material comprising:{'sub': '2', '52 to 68 wt % SiO, and'}{'sub': 2', '3, '12 to 30 wt % AlO, and'}0 to 25 wt % CaO, and0 to 12 wt % MgO, and{'sub': 2', '3, '0 to 10 wt % BO, and'}{'sub': 2', '2', '2, '0 to 2 wt % of the combination of LiO+NaO+KO, and'}{'sub': '2', '0 to 1.5 wt % TiO, and'}{'sub': 2', '3, '0.05 to 1 wt % total iron expressed as FeO, and'}0 to 1 wt % fluoride.17. The method of wherein the first batch material comprises 52 to 62 wt % SiO.18. The method of wherein the first batch material comprises 12 to 16 wt % AlO.19. The method of wherein the first batch material comprises 16 to 25 wt % CaO.20. The method of wherein the first batch material comprises 0 to 5 wt % MgO.21. The method of wherein the first batch material comprises 0 to 2 wt % BO.22. The method of wherein the first batch material comprises:{'sub': '2', '52 to 62 wt % SiO, and'}{'sub': 2', '3, '12 to 16 wt % AlO, and'}16 to 25 wt % CaO, and0 to 5 wt % MgO, and{'sub': 2', '3, '0 to 10 wt % BO, and'}{'sub': 2', '2', '2, '0 to 2 wt % of the combination of LiO+NaO+KO, and'}{'sub': '2', '0 to 1.5 wt % TiO, and'}{'sub': 2', '3, '0.05 to 1 wt % total iron expressed as FeO, and'}0 to 1 wt % fluoride. ...

INORGANIC FIBER

An inorganic fiber containing a fiberization product of a compound comprising at least one alkaline earth silicate, at least one compound containing an element from group VII and/or IX of the periodic table, and optionally alumina and/or boria. The inclusion of a suitable amount of at least one compound containing an element from group VII and/or IX of the periodic table of elements to an alkaline-earth silicate inorganic fiber reduces fiber shrinkage, decreases biopersistence in physiological solutions, and enhances mechanical strength beyond that of alkaline earth silicate fibers without the presence of the at least one compound containing an element from group VII and/or IX. Also provided are methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from the inorganic fibers. 1. An inorganic fiber comprising a fiberization product of a compound comprising at least one alkaline earth silicate , at least one compound containing an element from group IX of the periodic table , and optionally at least one compound containing an element from group VII of the periodic table , alumina and/or boria.2. (canceled)3. The inorganic fiber of claim 1 , wherein said inorganic fiber exhibits a shrinkage of 4% or less after exposure to a temperature of 1260° C. for 24 hours.4. The inorganic fiber of claim 1 , wherein said inorganic fiber exhibits a shrinkage of 5% or less after exposure to a temperature of 1400° C. for 24 hours.5. The inorganic fiber of claim 1 , wherein said inorganic fiber comprises the fiberization product of 65 to 86 weight percent silica claim 1 , 5 to 35 weight percent magnesia claim 1 , 0.1 to 10 weight percent of at least one compound containing an element from group IX of the periodic table claim 1 , and optionally at least one compound containing element from group VII of the periodic table claim 1 , alumina and/or boria.6. The inorganic fiber of claim 5 , wherein said at least one compound ...

MANUFACTURING OF CONTINUOUS MINERAL FIBERS

Continuous basalt fibers are produced by melting basalt rock in a submerged combustion melter, and by forming said melt into continuos basalt fibers. 1. Process for the manufacturing of continuous mineral fibers , comprising the steps of:introducing a solid batch material for preparation of continuous mineral fibers into a melter;melting the solid batch material in the melter by submerged combustion to form a liquid melt;forming at least a portion of the liquid melt into continuous mineral fibers.2. The process of wherein the raw material comprises 45.0-60.0 wt % SiO2 claim 1 , 12.0-25.0 wt % Al2O3 claim 1 , 5.0-25.0 wt % tot iron oxide expressed as Fe2O3 claim 1 , total alkali of 2.0-6.0 wt % claim 1 , 5.0-25.0 wt % CaO claim 1 , 4.0-25.0 wt % MgO and 0.0-5.0 wt % TiO2 and trace amounts of other oxides to add up to 100%.3. The process of wherein the raw material is basalt rock and the obtained continuous mineral fibers are basalt fibers.4. The process of claim 1 , wherein the melting chamber walls comprise double steel walls separated by circulating cooling liquid.5. The process of claim 1 , wherein heat is recovered from the hot fumes and/or from the cooling liquid.6. The process of claim 1 , wherein heat is recovered from the hot fumes to preheat the raw materials.7. The process of claim 1 , wherein part at least of the melt is withdrawn continuously or batchwise from the melter.8. The process of claim 1 , wherein the melter comprises at least one submerged burner claim 1 , and the said at least one submerged burner is controlled such as to maintain the melt in a turbulent state such that the volume of the turbulent melt is at least 8% higher than the level the melt would be at if no burners are firing.9. The process of claim 8 , wherein it is operated such that no significant foam layer is generated over the top of the melt level.10. The process of claim 1 , wherein the submerged combustion is performed such that a substantially toroidal melt flow pattern is ...

Metal-Coated Glass Fiber, Metal-Coated Glass Fiber Strand, Method for Manufacturing Metal-Coated Glass Fiber, and Method for Manufacturing Metal-Coated Glass Fiber Strand

A manufacturing method of a metal-coated glass fiber according to the present invention includes: drawing a glass fiber from a bushing nozzle of a glass melting furnace; discharging, from an orifice of a metal melting furnace in which a metal for forming a metal coating layer is melted, a molten metal in a dome shape or substantially spherical shape; and bringing the glass fiber into contact with the molten metal, wherein the metal melting furnace has on a wall surface thereof two orifices to discharge two droplets of the molten metal such that end portions of the two droplets abut or overlap each other to define a recess therebetween, and wherein the metal coating layer is formed on the glass fiber by passing the glass fiber downward through the recess and bringing the glass fiber into contact with both of the two droplets. 1. A manufacturing method of a metal-coated glass fiber , comprising:drawing a glass fiber from a bushing nozzle of a glass melting furnace;discharging, from an orifice of a metal melting furnace in which a metal for forming a metal coating layer is molten, a molten metal in a dome shape or substantially spherical shape; andbringing the glass fiber into contact with the molten metal,wherein the metal melting furnace has on a wall surface thereof two orifices to discharge two droplets of the molten metal such that end portions of the two droplets abut or overlap each other to define a recess therebetween, andwherein the metal coating layer is formed on the glass fiber by passing the glass fiber downward through the recess and bringing the glass fiber into contact with both of the two droplets.2. The manufacturing method of the metal-coated glass fiber according to claim 1 , wherein surfaces of the two orifices are made of a ceramic material.3. The manufacturing method of the metal-coated glass fiber according to claim 1 , wherein the two orifices are arranged side by side on the wall surface of the metal melting furnace such that an angle formed ...

GLASS REINFORCEMENT

A glass reinforcement for a cementitious board is provided. The glass reinforcement includes at least one glass fiber and a coating on the at least one glass fiber. The coating includes a polymer composition and an alkali scavenger, wherein the alkali scavenger includes an acid having a pKa of greater than about 3, wherein the acid is in a liquid state at 25° C. Further provided is a reinforcing cementitious board and a method of making a cementitious board. 1. A glass reinforcement for a cementitious board comprising at least one glass fiber and a coating on the at least one glass fiber , the coating comprising a polymer composition and an alkali scavenger , wherein the alkali scavenger comprises an acid having a pKa of greater than about 3 , wherein the acid is in a liquid state at 25° C.2. The glass reinforcement of claim 1 , wherein the acid comprises an organic acid claim 1 , an inorganic acid claim 1 , an ion exchange resin claim 1 , or combination thereof.3. The glass reinforcement of claim 1 , wherein the acid has a boiling point of greater than about 250° C. claim 1 , such as greater than about 300° C. claim 1 , such as greater than about 350° C.4. The glass reinforcement of claim 1 , wherein the acid comprises at least 10 carbon groups and optionally claim 1 , at least one ethylenic bond.5. The glass reinforcement of claim 1 , wherein the acid comprises hexanoic acid claim 1 , octanoic acid claim 1 , oleic acid claim 1 , or combination thereof.6. The glass reinforcement of claim 1 , wherein the polymer composition comprises a vinyl chloride copolymer claim 1 , diisonoyl phthalate claim 1 , dioctyl terephthalate claim 1 , or combination thereof.7. The glass reinforcement of claim 1 , wherein the glass reinforcement is disposed at on least one face of a cementitious core.8. A reinforcing cementitious board comprising:(a) a cementitious core; and(b) a glass reinforcement disposed on at least one face of the cementitious core; the glass reinforcement ...

HIGH TEMPERATURE RESISTANT INORGANIC FIBER

Provided is an inorganic fiber containing silica and magnesia as the major fiber components which further includes a phosphate additive to the melt of fiber ingredients, or as a coating on the surfaces of the fiber, or both. The inorganic fiber exhibits improved thermal performance properties and is non-durable in physiological fluids. Also provided are methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from a plurality of the inorganic fibers. 1. An inorganic fiber comprising the fiberization product of about 65 to about 86 weight percent silica , about 14 to about 35 weight percent magnesia , and (i) a phosphorous containing compound which is a component of the fiberization product , or (ii) as a coating on at least a portion of the exterior surface of the fiber , or (iii) as both a component of the fiberization product and as a coating.2. The fiber of claim 1 , wherein the phosphorous containing compound component of the fiberization product and/or the phosphorous containing compound coating comprises a phosphorous pentoxide bearing material.3. The fiber of claim 2 , wherein the fiberization product and/or coating comprises greater than 0 to about 10 weight percent of a phosphorous pentoxide bearing material claim 2 , measured as PO claim 2 , based on the total weight of the fiber.4. The fiber of claim 3 , wherein the fiberization product and/or coating comprises greater than 0 to about 5 weight percent of a phosphorous pentoxide bearing material claim 3 , measured as PO claim 3 , based on the total weight of the fiber.5. The fiber of claim 4 , wherein the fiberization product and/or coating comprises greater than 0 to about 1.5 weight percent of a phosphorous pentoxide bearing material claim 4 , measured as PO claim 4 , based on the total weight of the fiber.6. The fiber of claim 2 , wherein said phosphorous containing compound comprises at least one of ammonium phosphate or magnesium phosphate.7. The ...

GLASS COMPOSITION, GLASS FIBERS, GLASS CLOTH, AND METHOD FOR PRODUCING GLASS FIBERS

A glass composition of the present disclosure includes, in wt %, 50≤SiO≤56, 20≤BO≤30, 10≤AlO≤20, 3.5≤MgO+CaO≤10, and 0≤RO≤1.0, further includes FeO, and has a permittivity of less than 5.0 at a frequency of 1 MHz. R is at least one element selected from Li, Na, and K. The glass composition of the present disclosure is a low-permittivity glass composition with which the occurrence of fiber breakage during fiber forming can be reduced even when glass fibers to be formed have a small fiber diameter, and the occurrence of defects such as fiber breakage and fluffing during processing of the glass fibers can be reduced. 1. A glass composition comprising , in wt %:{'sub': '2', '50≤SiO≤56;'}{'sub': 2', '3, '20≤BO≤30;'}{'sub': 2', '3, '10≤AlO≤20;'}3.5≤MgO+CaO≤10; and{'sub': '2', '0≤RO≤1.0,'}{'sub': 2', '3, 'the glass composition further comprising FeO,'}the glass composition having a permittivity of less than 5.0 at a frequency of 1 MHz,R being at least one element selected from Li, Na, and K.2. The glass composition according to claim 1 , wherein a content in wt % of FeOsatisfies 0.05≤FeO≤0.3.3. The glass composition according to claim 1 , wherein the contents of the following components claim 1 , in wt % claim 1 , are:{'sub': '2', '50≤SiO≤54;'}{'sub': 2', '3, '25≤BO≤30;'}{'sub': 2', '3, '12≤AlO≤15;'}0.5≤MgO≤1.9;3.0≤CaO≤5.5;{'sub': '2', '0.1≤LiO≤0.5; and'}{'sub': '2', '0.1≤NaO≤0.3.'}4. The glass composition according to claim 1 , wherein the content of the following component claim 1 , in wt % claim 1 , is:{'sub': 2', '3, '25≤BO≤28.'}5. The glass composition according to claim 1 , wherein the content of the following component claim 1 , in wt % claim 1 , is:{'sub': '2', '50≤SiO≤52.5.'}6. The glass composition according to claim 1 , wherein the content of the following component claim 1 , in wt % claim 1 , is:1.2≤MgO≤1.9.7. The glass composition according to claim 1 , wherein the sum of contents of MgO and CaO is 5.5 wt % or more.8. The glass composition according to claim 1 ...

GLASS DIRECT ROVING AND LONG GLASS FIBER-REINFORCED THERMOPLASTIC RESIN PELLET

Provided is a glass direct roving that can achieve good productivity for long glass fiber-reinforced thermoplastic resin pellets, and achieve excellent spinning productivity and good strength of glass fiber-reinforced resin molded articles produced by using long glass fiber-reinforced thermoplastic resin pellets in combination. The glass direct roving includes a plurality of glass filaments bundled together, wherein the filament diameter of the glass filaments, D, is in the range of 17.5 to 21.5 μm, the number of the glass filaments bundled, F, is in the range of 3000 to 7000, the mass of the glass direct roving is in the range of 2450 to 4000 tex, the ignition loss of the glass direct roving, L, is in the range of 0.03 to 0.90%, and the D, F, and L satisfy the following formula (1): 5. A long glass fiber-reinforced thermoplastic resin pellet comprising the glass direct roving according to and a thermoplastic resin.6. The long glass fiber-reinforced thermoplastic resin pellet according to claim 5 , wherein the thermoplastic resin is polypropylene or polyamide. The present invention relates to a glass direct roving and a long glass fiber-reinforced thermoplastic resin pellet.Glass fiber-reinforced resin molded articles are increasingly demanded as metal substitute materials. In particular, glass fiber-reinforced resin molded articles produced by using long glass fiber-reinforced thermoplastic resin pellets (LFT pellets), which contain a glass fiber bundle (glass direct roving) obtained by bundling thousands of continuous glass filaments at once and winding the bundled glass filaments (e.g., see Patent Literature 1), are attracting attention. Typically, the LFT pellets are obtained in such a manner that a glass roving is allowed to pass through a through hole of a die having a through hole formed therein together with a thermally melted matrix resin and drawn from the through hole, and the glass roving is then cut into pieces of predetermined length.Glass fiber- ...

HIGH PERFORMANCE GLASS FIBER COMPOSITION, AND GLASS FIBER AND COMPOSITE MATERIAL THEREOF

Provided are a high-performance glass fiber composition, and a glass fiber and composite material thereof. The content, given in weight percentage, of each component of the glass fibre composition is as follows: 52-64% of SiO, 12-24% of AlO, 0.05-8% of YO+LaO+GdO, less than 2.5% of LiO+NaO+KO, more than 1% of KO, 10-24% of CaO+MgO+SrO, 2-14% of CaO, less than 13% of MgO, less than 2% of TiO, and less than 1.5% of FeO. The composition significantly increases the mechanical strength and the elastic modulus of glass, significantly reduces the liquidus temperature and the forming temperature of glass, and under equal conditions, significantly reduces the crystallization rate, the surface tension and the bubble rate of glass. The composition is particularly suitable for the tank furnace production of a high-strength high-modulus glass fiber having a low bubble rate. 2. The high-performance glass fiber composition according to claim 1 , wherein a ratio C1 in weight percentage of KO to RO claim 1 , C1=KO/RO claim 1 , is greater than 0.44.3. The high-performance glass fiber composition according to claim 1 , wherein a ratio C2 in weight percentage of (MgO+SrO) to CaO claim 1 , C2=(MgO+SrO)/CaO claim 1 , is greater than 0.9.4. The high-performance glass fiber composition according to claim 1 , wherein the content of LiO in weight percentage is 0.1-1%.5. The high-performance glass fiber composition according to claim 1 , wherein the content of YOin weight percentage is 0.05-6%.6. The high-performance glass fiber composition according to claim 1 , wherein the content of LaOin weight percentage is 0.05-2%.7. The high-performance glass fiber composition according to claim 1 , wherein the content of SrO in weight percentage is less than 2.5%.8. The high-performance glass fiber composition according to claim 1 , wherein the content of CaO in weight percentage is 4-11%.9. The high-performance glass fiber composition according to claim 1 , wherein the content of MgO in weight ...

ALKALI-FREE ULTRAFINE GLASS FIBER FORMULA

An alkali-free ultrafine glass fiber formula includes the following components, in mass percentage calculated based on 100 Kg: SiO2: 50% to 65%, AlO: 10% to 16.5%, CaO: 17% to 28%, MgO: 0.2% to 4.0%, NaO and KO: 0.1% to 0.8% in total, CeO: 0.1% to 0.5%, LiO: 0.1% to 0.7%, FeO: 0.05% to 0.6%, TiO: 0.1% to 1%, and impurities: the balance. In the preparation of alkali-free ultrafine glass fibers, no fluorine and boron-containing raw materials are used, and CeOand LiO are introduced, which avoids the use of BOand F that have a large impact on the environment, and reduces environmental pollution. A single fiber strength of prepared glass fibers is about 9% higher than that of the traditional E glass fibers, and the comprehensive performance of a prepared glass fiber product is significantly superior than that of the existing E glass fiber product. 1. An alkali-free ultrafine glass fiber formula , comprising the following components , in mass percentage calculated based on 100 kg:{'sub': '2', 'SiO: 50% to 65%,'}{'sub': 2', '3, 'AlO: 10% to 16.5%,'}CaO: 17% to 28%,MgO: 0.2% to 4.0%,{'sub': 2', '2, 'NaO and KO: 0.1% to 0.8% in total,'}{'sub': '2', 'CeO: 0.1% to 0.5%,'}{'sub': '2', 'LiO: 0.1% to 0.7%,'}{'sub': 2', '3, 'FeO: 0.05% to 0.6%,'}{'sub': '2', 'TiO: 0.1% to 1%, and'}impurities: the balance.2. The alkali-free ultrafine glass fiber formula according to claim 1 , comprising the following components claim 1 , in mass percentage calculated based on 100 kg:{'sub': '2', 'SiO: 50% to 62%,'}{'sub': 2', '3, 'AlO: 12% to 16.5%,'}CaO: 19% to 25%,MgO: 0.2% to 2.0%,{'sub': 2', '2, 'NaO and KO: 0.1% to 0.8% in total,'}{'sub': '2', 'CeO: 0.1% to 0.5%,'}{'sub': '2', 'LiO: 0.1% to 0.7%,'}{'sub': 2', '3, 'FeO: 0.05% to 0.45%,'}{'sub': '2', 'TiO: 0.1% to 1%, and'}impurities: the balance.3. The alkali-free ultrafine glass fiber formula according to claim 1 , comprising the following components claim 1 , in mass percentage calculated based on 100 kg:{'sub': '2', 'SiO: 50% to 55.5%,'}{' ...

METHOD OF MAKING PARTICULATE MATERIAL

The invention relates to a method of making a particulate material comprising; providing mineral wool base material in a form having size at least 80% not more than 40 mm, subjecting the mineral wool base material to sintering by use of a pulse combustor and thereby forming a particulate material in the form of particles having size at least 80% not more than 20 mm. An apparatus for carrying out the method comprises means for size reduction of coherent mineral wool substrate and a reaction chamber in communication with a pulse combustor. 118-. (canceled)19. Use as a raw material for the production of mineral melt for the production of mineral fibres , of a particulate material made by a method comprising;providing mineral wool base material in a form having size at least 80% not more than 40 mm,subjecting the mineral wool base material to sintering by use of a pulse combustorand thereby forming a particulate material in the form of particles having size at least 80% not more than 20 mm.20. Use as a component of bonded briquettes in which the binder comprises cement , of a particulate material made by a method comprising;providing mineral wool base material in a form having size at least 80% not more than 40 mm,subjecting the mineral wool base material to sintering by use of a pulse combustorand thereby forming a particulate material in the form of particles having size at least 80% not more than 20 mm.21. Use according to additionally comprising use of the briquettes to form a mineral melt and forming the mineral melt into mineral wool.22. Use as a particulate material in construction work claim 20 , of a particulate material made by a method comprising;providing mineral wool base material in a form having size at least 80% not more than 40 mm,subjecting the mineral wool base material to sintering by use of a pulse combustorand thereby forming a particulate material in the form of particles having size at least 80% not more than 20 mm.23. Use according to in which ...

RADIATION-RESISTANT INORGANIC MATERIAL AND FIBER THEREOF

An inorganic material including SiO, AlO, CaO, and FeOas components, in which the mass percentages of the components in terms of oxide in the inorganic material are set as follows: i) the total content of SiOand AlOis from 40% by mass to 70% by mass; ii) the ratio AlO/(SiO+AlO) (mass ratio) is in the range of 0.15 to 0.40; iii) the content of FeOis from 16% by mass to 25% by mass; and iv) the content of CaO is from 5% by mass to 30% by mass, can be produced as an inorganic material having excellent melt spinnability and excellent radiation resistance. 1. An inorganic material having radiation resistance , the inorganic material comprising SiO , AlO , CaO , and FeOas components ,wherein the mass percentages of the components in terms of oxide in the inorganic material are as follows:{'sub': 2', '2', '3, 'i) the total content of SiOand AlOis from 40% by mass to 70% by mass;'}{'sub': 2', '3', '2', '2', '3, 'ii) the ratio AlO/(SiO+AlO) (mass ratio) is in the range of 0.15 to 0.40;'}{'sub': 2', '3, 'iii) the content of FeOis from 16% by mass to 25% by mass; and'}iv) the content of CaO is from 5% by mass to 30% by mass.2. The inorganic material according to claim 1 , wherein the inorganic material is intended for a part to be irradiated with radiation.3. A fiber comprising the inorganic material according to .4. A fiber-reinforced composite material reinforced with the fiber according to .5. The fiber-reinforced composite material according to claim 4 , wherein the fiber-reinforced composite material is a fiber-reinforced resin.6. The fiber-reinforced composite material according to claim 4 , wherein the fiber-reinforced composite material is a fiber-reinforced cement.7. A method for producing an inorganic fiber having radiation resistance claim 4 ,the method comprising melt-spinning a mixture of a silica source, an alumina source, a calcium oxide source, and an iron oxide source,{'sub': 2', '2', '3', '2', '3, 'wherein the mass percentages of SiO, AlO, CaO, and FeOin ...

Methods to Make Glass Compositions and Fibers Made Therefrom

Embodiments of the present invention provides fiberizable glass compositions formed from batch compositions comprising significant amounts of one or more glassy minerals, including perlite and/or pumice. 123-. (canceled)24. A method of producing a glass composition comprising:{'sub': 2', '2', '3, 'providing a batch composition comprising at least 50 weight percent of a glassy mineral and at least 5 weight percent of a sodium source, the glassy comprising a combination of SiOand AlOin an amount of at least 80 weight percent; and'}heating the batch to form a melt of the glass composition.25. The method of claim 24 , wherein the batch composition is heated to a fiber forming temperature ranging from about 1120° C. to about 1300° C.26. The method of claim 25 , further comprising fiberizing the glass composition.2732-. (canceled)33. The method of claim 24 , wherein the batch composition comprises at least 65 weight percent of a glassy mineral.34. The method of claim 24 , wherein the glassy mineral comprises perlite claim 24 , pumice claim 24 , or mixtures thereof.35. The method of claim 24 , wherein the batch composition comprises at least 10 weight percent of a sodium source.36. The method of claim 24 , wherein the sodium source comprises sodium carbonate (soda).37. The method of claim 24 , further comprising at least one additional mineral.38. The method of claim 37 , wherein the additional mineral comprises limestone claim 37 , dolomite claim 37 , or mixtures thereof.39. The method of claim 38 , wherein the batch composition comprises limestone in an amount up to 17 weight percent.40. The method of claim 38 , wherein the batch composition comprises dolomite in an amount up to 13 weight percent.41. The method of claim 24 , wherein the batch composition is heated to a fiber forming temperature ranging from about 1400° C. to about 1450° C.42. The method of claim 24 , wherein the batch composition is heated to a fiber forming temperature which differs from the liquidus ...

GLASS FIBER AND METHOD FOR PRODUCING THE SAME

A glass fiber according to the present invention is suitable for preventing filament breakage and suitable for being stably produced for a long term, and has a β-OH value of 0.02 mmor more and less than 0.55 mm. The preferred content of SOis more than 0 ppm and 70 ppm or less on a mass basis. The glass fiber is preferably substantially free of As and Sb. SOcan be supplied to a glass raw material as, for example, a sulfuric acid salt of an alkali metal or an alkaline-earth metal. 1. A glass fiber having a β-OH value of 0.02 mmor more and less than 0.55 mm.2. The glass fiber according to claim 1 , wherein the glass fiber has a diameter of 15 μm or less.3. The glass fiber according to claim 2 , whereinthe glass fiber is substantially free of As and Sb, and{'sub': '3', 'the content of SOis more than 0 ppm and 75 ppm or less on a mass basis.'}4. The glass fiber according to claim 3 , wherein{'sup': −1', '−1, 'the glass fiber has a β-OH value of 0.3 mmor more and less than 0.55 mm, and'}{'sub': '3', 'the content of SOis 20 to 75 ppm on a mass basis.'}5. The glass fiber according to claim 1 , whereinthe glass fiber is substantially free of As and Sb, and{'sub': '3', 'the content of SOis more than 0 ppm and 75 ppm or less on a mass basis.'}6. The glass fiber according to claim 5 , wherein{'sup': −1', '−1, 'the glass fiber has a β-OH value of 0.3 mmor more and less than 0.55 mm, and'}{'sub': '3', 'the content of SOis 20 to 75 ppm on a mass basis.'}7. The glass fiber according to claim 1 , wherein{'sub': '3', 'the content of SOis 20 to 70 ppm on a mass basis, and'}{'sup': '−1', 'the β-OH value is 0.35 to 0.53 mm.'}8. The glass fiber according to claim 1 , whereinthe glass fiber has a diameter of 10 μm or less.9. The glass fiber according to claim 1 , wherein a variation in diameter is 3 μm or less.11. The glass fiber according to claim 10 , wherein claim 10 , in mass % claim 10 , the content of SiOis 50 to 80%.12. The glass fiber according to claim 10 , wherein claim 10 , in ...

MINERAL WOOL

The present disclosure relates to mineral wool compositions and articles, as well as methods for manufacturing mineral wool compositions and articles. 115.-. (canceled)16. A method of making mineral wool fibers comprising:{'sub': '2', '55 to 75 wt % SiO, and'}5 to 20 wt % of the combination of CaO and MgO, and{'sub': 2', '2, '5 to 20 wt % of the combination of NaO and KO, and'}{'sub': 2', '3, '0 to 5 wt % AlO, and'}{'sub': 2', '3, '0 to 2 wt % total iron expressed as FeO, and'}an alkali/alkaline-earth ratio which is >1the method comprising:introducing mineral batch materials in to a melter, melting the mineral batch materials to provide a melt and fiberizing the melt to form the mineral wool fibers,wherein the mineral batch materials introduced in to the melter comprise a first batch material selected from:a) a first batch material comprising:{'sub': '2', '52 to 62 wt % SiO, and'}{'sub': 2', '3, '12 to 16 wt % AlO, and'}16 to 25 wt % CaO, and0 to 5 wt % MgO, and{'sub': 2', '3, '0 to 10 wt % BO, and'}{'sub': 2', '2', '2, '0 to 2 wt % of the combination of LiO+NaO+KO, and'}{'sub': '2', '0 to 1.5 wt % TiO, and'}{'sub': 2', '3, '0.005 to 1 wt % total iron expressed as FeO, and'}0 to 1 wt % fluoride.b) a first batch material comprising{'sub': '2', '61 to 74 wt % SiO, and'}{'sub': 2', '3, '0 to 8 wt % AlO, and'}4 to 12 wt % CaO, and0 to 6 wt % MgO, and{'sub': 2', '3, '0 to 8 wt % BOand'}{'sub': 2', '2, '12 to 18 wt % of the combination of NaO+KO, and'}{'sub': '2', '0 to 2 wt %, TiO, and'}{'sub': 2', '3, '0 to 1 wt % total iron expressed as FeO, and'}0 to 1 wt % fluoride.c) a first batch material comprising{'sub': '2', '70 to 77 wt % SiO, and'}{'sub': 2', '3, '0 to 2 wt % AlO, and'}0 to 2 wt % CaO, and{'sub': 2', '3, '19 to 26 wt % BOand'}{'sub': 2', '2, '0 to 6 wt % of the combination of NaO+KO, and'}{'sub': 2', '3, '0 to 1 wt % total iron expressed as FeO.'}d) a first batch material comprising:{'sub': '2', '53 to 77 wt % SiO, and'}{'sub': 2', '3, '0 to 7 wt % AlO, and'}0 ...

BORON-FREE GLASS FIBER COMPOSITION, GLASS FIBER PREPARED FROM THE SAME, AND COMPOSITE MATERIAL COMPRISING THE GLASS FIBER

A composition of matter, including the following components expressed as percentage by weight: SiO, 58-60.4%; AlO, 14-16.5%; CaO, 14.1-16.5%; MgO, 6-8.2%; LiO, 0.01-0.4%; NaO+KO, less than 1.15%; KO, greater than 0.5%; TiO, less than 1.5%; and FeO, less than 1%. The range of the weight percentage ratio CaO/MgO is greater than 2 and less than or equal to 2.4. A glass fiber prepared from the composition is also provided. 2. The composition of claim 1 , wherein a range of the weight percentage ratio KO/NaO is greater than 1 and less than or equal to 6.3. The composition of claim 1 , wherein a range of the weight percentage ratio CaO/MgO is greater than 2 and less than or equal to 2.3.4. The composition of claim 1 , wherein a range of the weight percentage ratio KO/NaO is 1.2-5.7. The composition of claim 1 , wherein a content of LiO expressed as weight percentage is greater than or equal to 0.01% and less than 0.1%.8. The composition of claim 1 , further comprising ZrOand HfO claim 1 , and a total content of ZrOand HfOexpressed as weight percentage is 0.01-2%.9. The composition of claim 6 , wherein a content of LiO expressed as weight percentage is greater than or equal to 0.01% and less than 0.1%.10. The composition of claim 6 , further comprising ZrOand HfO claim 6 , and a total content of ZrOand HfOexpressed as weight percentage is 0.01-2%.11. A glass fiber claim 1 , wherein the glass fiber is produced from the composition of .12. The glass fiber of claim 11 , wherein a range of the weight percentage ratio KO/NaO is greater than 1 and less than or equal to 6.15. The glass fiber of claim 11 , further comprising ZrOand HfO claim 11 , and a total content of ZrOand HfOexpressed as weight percentage is 0.01-2%.16. A composite material claim 11 , comprising the glass fiber of .17. The composite material of claim 16 , wherein a range of the weight percentage ratio KO/NaO is greater than 1 and less than or equal to 6.20. The composite material of claim 16 , further ...

High strength glass fiber

A high strength glass fiber is prepared by following steps: weighing raw materials according to a mass percentage of 50-60% silica sol, 24-31% aluminum sol, 8-11% magnesia, 4-5% calcium oxide, 0.1-2% titanium dioxide, 0-0.5% ferric oxide, 0.5-2% niobium pentoxide, 0.5-1.5% antimony trioxide, 0.3-1.5% bismuth nitrate, and 0.1-0.5% boric acid. Deionized water is added. The raw material undergoes mixing by ball milling, spray-drying, calcining, isostatic pressing, melting, and wire-drawing. The invention adopts silicon sol, aluminum sol and bismuth nitrate. Through ball milling and spray-drying, silicon aluminum barium plasmas is evenly coated on surface of other oxide powders. Then nano particles, of silica, alumina and bismuth oxide are obtained by calcining. Under the effect of the high specific surface energy of nano particles, and the close contact of each component, high strength glass fiber is obtained in relatively low fiber drawing temperature while the glass melting temperature and time are significantly reduced. 1(1) weighing in a basis of a mass percentage of following raw materials, simultaneously, weighing zirconia grinding ball 4-5 times the weight of the raw materials and deionized water 1-2 times the weight of the raw materials, then ball milling for 12-24 hours and obtaining a mixture, wherein: a mass percentage of the raw materials is as follows:. A method for preparing a high strength glass fiber, comprising steps of:(2) spray-drying the mixture through an atomizer, removing the deionized water, and obtaining a powder material, wherein: an inlet air temperature of spray-drying is 180-280° C. and an outlet air temperature thereof is 30-100° C.;(3) calcining the powder material at 700-900° C. for 1-3 hours, and then cooling the calcined powder material to a room temperature;(4) putting the calcined and cooled powder material into a rubber mold, isostatic pressing at 100-300 MPa in a cold isostatic press, and obtaining a compact block;(5) putting the ...

METHODS TO MAKE GLASS COMPOSITIONS AND FIBERS MADE THEREFROM

Embodiments of the present invention provides fiberizable glass compositions formed from batch compositions comprising amounts of one or more glassy minerals, including perlite and/or pumice. 126-. (canceled)27. A method of producing a glass fiber , the method comprising:(a) providing a batch composition comprising:{'sub': 2', '2', '3, 'at least 10 weight percent of a glassy mineral and at least 5 weight percent of a sodium source, the glassy mineral comprising a combination of SiOand AlOin an amount of at least 80 weight percent; and'}at least 10 weight percent of an additional source of silicon, aluminum, or both silicon and aluminum;(b) heating the batch composition to form a molten glass composition; and(c) extruding the molten glass composition through a bushing to form a glass fiber.28. The method of claim 27 , wherein the batch composition is heated to a fiber forming temperature ranging from about 1120° C. to about 1300° C.29. The method of claim 27 , wherein the batch composition comprises at least 25 weight percent of the glassy mineral.30. The method of claim 27 , wherein the batch composition comprises at least 40 weight percent of the glassy mineral.31. The method of claim 27 , wherein the batch composition comprises at least 10 weight percent of the sodium source.32. The method of claim 27 , wherein the glassy mineral comprises perlite claim 27 , pumice or mixtures thereof.33. The method of claim 27 , wherein the batch composition comprises at least 10 weight percent of an additional source of silicon.34. The method of claim 33 , wherein the source of silicon comprises 34-56 weight percent silica.35. The method of claim 27 , wherein the batch composition comprises at least 10 weight percent of an additional source of aluminum.36. The method of claim 35 , wherein the source of aluminum comprises corundum.37. The method of claim 27 , wherein the batch composition comprises at least 10 weight percent of an additional source of both silicon and aluminum.38 ...

GLASS FIBRE COMPOSITION AND COMPOSITE MATERIAL REINFORCED THEREWITH

The present invention concerns glass fibre composition comprising the following oxides: Si0: 57.5-59.5 wt. % AIO: 17.0-20.0 wt. % CaO: 11.0-13.5 wt. % MgO: 8.5-12.5 wt. % wherein the sum of NaO, KO, and TiOis at least 0.1 wt. % and LiO≦2.0 wt. %, all amounts being expressed in weight % with respect to the total weight of the composition. It also concerns composite materials reinforced with such fibres, used in applications such as wind(a) mill blades, pressure vessels, components in the automotive, machinery, aerospace applications and such products produced therewith, and wherein the temperature difference, ΔT, defined as the difference between the temperature, T3, at which the composition has a viscosity of 10Poise and the liquidus temperature, T, is at least 50° C. 2. The glass fibre composition according to claim 1 , having the liquidus temperature claim 1 , T claim 1 , of not more than 1233° C.3. The glass fibre composition according to claim 2 , having a liquidus temperature claim 2 , T claim 2 , of not more than 1228° C.4. The glass fibre composition according to claim 1 , having a T3-temperature of not more than 1306° C.5. The glass fibre composition according to claim 1 , further comprising:{'sub': '2', 'at least 0.2 wt. % of Na0, and/or'}{'sub': '2', 'at least 0.2 wt. % of K0, and/or'}{'sub': 2', '3, 'at least 0.1 wt. % of FeO, and/or'}{'sub': 2', '3, 'at least 0.1 wt. % B0, and/or'}{'sub': '2', 'not more than 1.0 wt. % TiO.'}6. The glass fibre composition according to claim 1 , comprising:{'sub': '2', 'SiO: 57.5-59.0 wt. %'}{'sub': 2', '3, 'AlO: 17.0-19.5 wt. %'}CaO: 11.0-13.0 wt. %MgO: 9.0-12.0 wt. %7. The glass fibre composition according to claim 1 , wherein a sum of the SiOand the AlOis not more than 78.0 wt. %.8. A glass fibre of quaternary composition comprising SiO claim 1 , AlO claim 1 , CaO claim 1 , and MgO claim 1 , each present in an amount of at least 5 wt. % claim 1 , and comprising less than 3.3 wt. % BO claim 1 , and less than 2.0 wt. % ...

USE OF MgO, ZnO, AND RARE EARTH OXIDES FOR MAKING IMPROVED LOW DIELECTRIC FIBERS WITH IMPROVED LOW THERMAL EXPANSION COEFFICIENT FOR HIGH BORON ALUMINOSILICATE COMPOSITIONS

New glass compositions and applications thereof are disclosed. A glass composition as described herein can include 50 to 55 weight percent SiO, 17 to 26 weight percent BO, 13 to 19 weight percent AlO, 0 to 8.5 weight percent MgO, 0 to 7.5 weight percent ZnO, 0 to 6 weight percent CaO, 0 to 1.5 weight percent LiO, 0 to 1.5 weight percent F, 0 to 1 weight percent NaO, 0 to 1 weight percent FeO, 0 to 1 weight percent TiO, and 0 to 8 weight percent of other constituents. Also described herein are glass fibers formed from such compositions, composites, and articles of manufacture comprising the glass compositions and/or glass fibers. 1. A glass composition suitable for fiber forming comprising:{'sub': '2', 'SiOin an amount from about 50 to about 55 weight percent;'}{'sub': 2', '3, 'BOin an amount from about 17 to about 26 weight percent;'}{'sub': 2', '3, 'AlOin an amount from about 13 to about 19 weight percent;'}MgO in an amount from about 0 to about 8.5 weight percent;ZnO in an amount from about 0 to about 7.5 weight percent;CaO in an amount from about 0 to about 6 weight percent;{'sub': '2', 'LiO in an amount from about 0 to about 1.5 weight percent;'}{'sub': '2', 'Fin an amount from about 0 to about 1.5 weight percent;'}{'sub': '2', 'NaO in an amount from about 0 to about 1 weight percent;'}{'sub': 2', '3, 'FeOin an amount from about 0 to about 1 weight percent;'}{'sub': '2', 'TiOin an amount from about 0 to about 1 weight percent; and'}{'sub': 2', '3, 'one or more rare earth oxides (REO) in an amount from 0 to about 8 weight percent total.'}2. The composition of claim 1 , wherein the SiOcontent is from about 51 to about 54 weight percent.3. (canceled)4. The composition of claim 1 , wherein the BOcontent is from about 19 to about 24 weight percent.5. The composition of claim 1 , wherein the AlOcontent is from about 14 to about 18 weight percent.6. (canceled)7. The composition of claim 1 , wherein the MgO content is from about 2 to about 8.5 weight percent.8. The ...

Methods to Make Glass Compositions and Fibers Made Therefrom

Embodiments of the present invention provides fiberizable glass compositions formed from batch compositions comprising significant amounts of one or more glassy minerals, including perlite and/or pumice. 2. The glass composition of claim 1 , wherein the RO component is present in an amount ranging from 7 weight percent to 31 weight percent.3. The glass composition of claim 1 , wherein the RO component comprises a mixture of metal oxides.4. The glass composition of claim 3 , wherein the RO component comprises a mixture of CaO and MgO.5. The glass composition of claim 1 , wherein the RO component comprises CaO in an amount ranging from 7 to 26 weight percent.6. The glass composition of claim 1 , wherein the RO component comprises MgO in an amount up to 5 weight percent.7. The glass composition of claim 1 , wherein the RO comprises NaO claim 1 , KO or LiO or mixtures thereof.8. The glass composition of claim of claim 1 , wherein RO comprises NaO in an amount ranging from 6.5 to 16 weight percent9. The glass composition of claim of claim 1 , wherein RO comprises KO in an amount ranging from 2 to 4 weight percent.10. The glass composition of claim of claim 1 , wherein RO comprises LiO in an amount up to 2 weight percent.11. The glass composition of further comprising ZrOin an amount up to 8 weight percent.12. The glass composition of claim 1 , wherein the RO component comprises ZnO in an amount up to 3 weight percent.13. The glass composition of further comprising MnOin an amount up to 3 weight percent.14. The glass composition of further comprising TiOin an amount up to 3 weight percent.15. The glass composition of further comprising LaOin an amount up to 3 weight percent.16. The glass composition of having a fiber forming temperature ranging from about 1120° C. to about 1300° C.17. The glass composition of claim 1 , wherein the difference between forming temperature and liquidus temperature of the glass composition is at least about 65° C.18. The glass composition of ...

ARRANGEMENT FOR AND A METHOD OF RECYCLING MINERAL WOOL WASTE

A method of and an arrangement for recycling mineral wool waste to mineral wool production includes at least one melting furnace for melting virgin mineral wool raw material, the melting furnace including an inlet for virgin mineral wool raw material and an outlet for molten mineral wool material, a production line connected to the outlet for molten mineral wool material for producing a mineral wool product from the molten mineral wool material. The production line includes a curing oven, a fluidized bed reactor including an exhaust gas duct, an inlet for predetermined primary fuel, an inlet for predetermined bed material, and an outlet for an ash material, the ash material including bottom ash discharged via a bottom outlet from the fluidized bed reactor or fly ash separated by a particle separator from exhaust gas in the exhaust gas duct or a mixture of the bottom ash and the fly ash. 1. An arrangement for recycling mineral wool waste to mineral wool production , the arrangement comprising:at least one melting furnace for melting virgin mineral wool raw material, the melting furnace comprising an inlet for virgin mineral wool raw material and an outlet for molten mineral wool material;a production line connected to the outlet for molten mineral wool material for producing a mineral wool product from the molten mineral wool material, wherein the production line comprises a curing oven;a fluidized bed reactor comprising an exhaust gas duct, an inlet for predetermined primary fuel, an inlet for predetermined bed material, and an outlet for an ash material, the ash material comprising bottom ash discharged via a bottom outlet from the fluidized bed reactor or fly ash separated by a particle separator from exhaust gas in the exhaust gas duct or a mixture of the bottom ash and the fly ash, together with particles of bed material removed from the fluidized bed reactor, the fluidized bed reactor comprising an inlet for mineral wool waste, whereby the ash material ...

FIBERGLASS INSULATION PRODUCT

A fibrous insulation product having a plurality of randomly oriented glass fibers and a binder composition that holds the glass fibers together is disclosed. The fibrous insulation product has an R-value in the range of 10 to 54 and, after curing, has a density, when uncompressed, in the range of 0.30 pcf to 2.7 pcf. Furthermore, the fibrous insulation product includes glass fibers that, prior to the application of the binder composition, have an average fiber diameter of less than 15 HT a quantity of binder that is in the range of 2% to 10% by weight of the fibrous insulation product. 1. A fibrous insulation product comprising:a plurality of randomly oriented glass fibers; anda binder composition that holds the glass fibers together;wherein the quantity of binder is in the range of 2% to 10% by weight of the fibrous insulation product;wherein the R-value of the fibrous insulation product is in the range of 10 to 54; andwherein the glass fibers have an average fiber diameter in the range of 12 HT to 15 HT; andwherein the fibrous insulation product, after curing, has a density, when uncompressed, in the range of 0.30 pcf to 2.7 pcf.2. The fibrous insulation product of claim 1 , wherein the fibrous insulation product has a thickness in the range 2 inches to 18 inches and is formed by a single ply of the randomly oriented glass fibers.3. The fibrous insulation product of claim 1 , wherein the fibrous insulation product has a thickness in the range 2 inches to 18 inches and is formed by no more than two plies of the randomly oriented glass fibers.4. The fibrous insulation product of claim 1 , wherein the binder comprises maltodextrin claim 1 , citric acid claim 1 , sodium hypophosphite and vegetable oil.5. The fibrous insulation product of claim 1 , wherein the binder comprises polyacrylic acid claim 1 , polyvinyl alcohol claim 1 , sorbitol and sodium hypophosphite.6. The fibrous insulation product of claim 1 , wherein the R-value of the fibrous insulation product is in ...

FIBERGLASS INSULATION PRODUCT

A fibrous insulation product having a plurality of randomly oriented glass fibers and a binder composition that holds the glass fibers together is disclosed. The fibrous insulation product has an R-value in the range of 10 to 54 and, after curing, has a density, when uncompressed, in the range of 0.30 pcf to 2.7 pcf. Furthermore, the fibrous insulation product includes glass fibers that, prior to the application of the binder composition, have an average fiber diameter in the range of 8 HT to 12 HT and a quantity of binder that is in the range of 2% to 10% by weight of the fibrous insulation product. The fibrous insulation product also has an average fiber diameter to density ratio (Fd/D) of less than or equal to 40 and a comfort factor less than or equal to 3.417(Fd/D)+60. 1. A fibrous insulation product comprising:a plurality of randomly oriented glass fibers; anda binder composition that holds the glass fibers together;wherein the quantity of binder is in the range of 2% to 10% by weight of the fibrous insulation product;wherein the R-value of the fibrous insulation product is in the range of 10 to 54; andwherein the glass fibers have an average fiber diameter in the range of 8 HT to 12 HT;wherein the fibrous insulation product, after curing, has a density, when uncompressed, in the range of 0.30 pcf to 2.7 pcf, andwherein the fibrous insulation product has an average fiber diameter to density ratio (Fd/D) of less than or equal to 40 and a comfort factor of less than or equal to 3.417(Fd/D)+60.2. The fibrous insulation product of claim 1 , wherein the comfort factor is less than or equal to 120 and the fiber diameter to density ratio is less than or equal to 25.3. The fibrous insulation product of claim 1 , wherein the fibrous insulation product has a thickness in the range 2 inches to 18 inches and is formed by a single ply of the randomly oriented glass fibers.4. The fibrous insulation product of claim 1 , wherein the fibrous insulation product has a thickness ...

MAT MATERIAL AND EXHAUST GAS PURIFYING APPARATUS

A mat material includes glass fibers. The glass fibers include about 52% by weight to about 66% by weight of SiO, about 9% by weight to about 26% by weight of AlO, about 15% by weight to about 27% by weight of CaO, 0% by weight to about 9% by weight of MgO, 0% by weight to about 4% by weight of TiO, 0% by weight to about 5% by weight of ZnO, and 0% by weight to about 2% by weight of NaO and KO in total. The glass fibers are substantially free of BO. 1. A mat material comprising: [{'sub': '2', 'about 52% by weight to about 66% by weight of SiO;'}, {'sub': 2', '3, 'about 9% by weight to about 26% by weight of AlO;'}, 'about 15% by weight to about 27% by weight of CaO;', '0% by weight to about 9% by weight of MgO;', {'sub': '2', '0% by weight to about 4% by weight of TiO;'}, '0% by weight to about 5% by weight of ZnO;', {'sub': 2', '2, '0% by weight to about 2% by weight of NaO and KO in total; and'}, {'sub': 2', '3, 'the glass fibers being substantially free of BO.'}], 'glass fibers comprising2. The mat material according to claim 1 ,wherein the glass fibers have an average fiber diameter of about 9 μm to about 15 μm.3. The mat material according to claim 1 ,wherein the glass fibers have an average fiber length of about 30 mm to about 120 mm.4. The mat material according to claim 1 , further comprising an organic binder.5. The mat material according to claim 4 ,wherein the organic binder comprises at least one of epoxy resins, acrylic resins, rubber resins, and styrene resins.6. The mat material according to claim 4 ,wherein the organic binder comprises at least one of acrylic rubber, acrylonitrile-polybutadiene rubber, and styrene-polybutadiene rubber.7. The mat material according to claim 4 ,wherein an amount of the organic binder is about 20% by weight or less.8. The mat material according to claim 1 , further comprising an expansive agent.9. The mat material according to claim 8 ,wherein the expansive agent comprises at least one of vermiculite, bentonite, bronze ...

MELT COMPOSITION FOR THE PRODUCTION OF MAN-MADE VITREOUS FIBRES

The invention relates to a melt composition for the production of man-made vitreous fibres and man-made vitreous fibres comprising the following oxides, by weight of composition: 2. A melt composition according to claim 1 , wherein the reading for Fe(0) content in the melt claim 1 , measured using a magnetic analyser claim 1 , is less than 900 ppm claim 1 , preferably less than 800 ppm claim 1 , more preferably less than 600 ppm claim 1 , more preferably less than 500 ppm and most preferably less than 350 ppm.4. Man-made vitreous fibres according to claim 3 , wherein the dielectric loss factor ∈″ of the fibres is less than 0.02 claim 3 , preferably less than 0.01.5. Man-made vitreous fibres according to claim 3 , wherein the reading for Fe(0) content in the man-made vitreous fibres claim 3 , measured using a magnetic analyser claim 3 , is less than 900 ppm claim 3 , preferably less than 800 ppm claim 3 , more preferably less than 600 ppm claim 3 , more preferably less than 500 ppm and most preferably less than 350 ppm.6. Man-made vitreous fibres according to claim 3 , wherein the ratio of KO to NaO calculated by weight of oxides is from 1:2 to 4:1 claim 3 , preferably from 1:1 to 3:1.7. Man-made vitreous fibres according to claim 3 , wherein the fibres are formed by a spinning cup method.8. A method of forming man-made vitreous fibres comprising fiberising a melt composition according to by a spinning cup method to form fibres and collecting the formed fibres.9. A method of forming a melt composition as defined in claim 1 , comprising heating and melting mineral material in a furnace to produce a mineral melt and claim 1 , if necessary claim 1 , adjusting the oxidation state of the melt such that the proportion of Fe(2+) based on total Fe is greater than 80% claim 1 , preferably greater than 90% claim 1 , more preferably greater than 95% claim 1 , most preferably greater than 97%.10. A method according to claim 9 , wherein the oxidation state of the melt is adjusted ...

Glass compositions, fiberizable glass compositions, and glass fibers and articles of manufacture made therefrom

The present invention relates generally to glass compositions incorporating rare earth oxides. In one embodiment, a glass composition suitable for fiber forming comprises 51-65 weight percent SiO, 12.5-19 weight percent AlO, 0-16 weight percent CaO, 0-12 weight percent MgO, 0-2.5 weight percent NaO, 0-1 weight percent KO, 0-2 weight percent LiO, 0-3 weight percent TiO, 0-3 weight percent ZrO, 0-3 weight percent BO, 0-3 weight percent PO, 0-1 weight percent FeO, at least one rare earth oxide in an amount not less than 0.05 weight percent, and 0-11 weight percent total other constituents. In some embodiments, the at least one rare earth oxide comprises at least one of LaO, YO, ScO, and NdO. The at least one rare earth oxide is present in an amount of at least 1 weight percent in some embodiments. The at least one rare earth oxide, in some embodiments, is present in an amount of at least 3 weight percent. The glass compositions can be used to form glass fibers which can be incorporated into a variety of other fiber glass products (e.g., strands, rovings, fabrics, etc.) and incorporated into various composites. 132-. (canceled)34. The article of manufacture of claim 33 , wherein the article is a roving.35. The article of manufacture of claim 33 , wherein the article is a yarn.36. The article of manufacture of claim 33 , wherein the article is a fabric.37. The article of manufacture of claim 36 , wherein the fabric is woven.38. The article of manufacture of claim 33 , wherein the article is a composite.40. The article of manufacture of claim 33 , wherein the article is a prepreg.42. The article of manufacture of claim 33 , wherein the article is a printed circuit board.44. The article of manufacture of claim 43 , wherein the article is a roving.45. The article of manufacture of claim 43 , wherein the article is a yarn.46. The article of manufacture of claim 43 , wherein the article is a fabric.47. The article of manufacture of claim 46 , wherein the fabric is woven.48. ...

Low Dielectric Glass And Fiber Glass

Glass compositions are provided that are useful in a variety of applications including, for example, electronics applications, reinforcement applications, and others. Some embodiments of glass compositions can provide desirable dielectric constants, desirable dissipation factors, and/or desirable mechanical properties while also having desirable fiber forming properties. 2. The composition of claim 1 , wherein the BOcontent is 5-10 weight percent.3. The composition of claim 1 , wherein the BOcontent is less than 9 weight percent.4. The composition of claim 1 , wherein the BOcontent is less than 7 weight percent.5. The composition of claim 1 , wherein the CaO content is greater than 5.0 weight percent.6. The composition of claim 1 , wherein the MgO content is greater than 5.0 weight percent.7. The composition of claim 1 , wherein the MgO content is less than 6.0 weight percent.8. The composition of claim 1 , wherein the AlOcontent is less than 8 weight percent.9. The composition of claim 1 , wherein the MgO+CaO content is less than 16 weight percent.10. The composition of claim 1 , wherein the MgO+CaO content is 7-16 weight percent.11. The composition of claim 1 , wherein the (LiO+NaO+KO) content is less than 2 weight percent.12. The composition of claim 1 , wherein the LiO content is 0.4-2.0 weight percent.13. The composition of claim 1 , wherein the composition contains essentially no BaO and essentially no ZnO.14. A plurality of glass fibers formed from the composition of .16. The composition of claim 15 , wherein the BOcontent is less than 9 weight percent.17. The composition of claim 15 , wherein the MgO content is less than 6.0 weight percent.18. The composition of claim 15 , wherein the AlOcontent is less than 8 weight percent.19. The composition of claim 15 , wherein the MgO+CaO content is 7-16 weight percent.20. The composition of claim 15 , wherein the (LiO+NaO+KO) content is less than 2 weight percent.21. The composition of claim 15 , wherein the LiO ...

COMPOSITION FOR GLASS FIBER, GLASS FIBER, GLASS-FIBER-CONTAINING COMPOSITE MATERIAL CONTAINING GLASS FIBER, AND METHOD FOR MANUFACTURING GLASS FIBER

Provided is a composition for a glass fiber which has a high elastic modulus and satisfactory productivity, and can facilitate the production of a fine-count glass fiber. The composition for a glass fiber of the present invention includes, as a glass composition expressed as a mass percent in terms of oxide, 50% to 70% of SiO, 15% to 25% of AlO, 3% to 13% of MgO, 3% to 15% of CaO, and 0.5% to 5% of BO. 1. A composition for a glass fiber , comprising , as a glass composition expressed as a mass percent in terms of oxide , 50% to 70% of SiO , 15% to 25% of AlO , 3% to 13% of MgO , 3% to 15% of CaO , and 0.5% to 5% of BO.2. The composition for a glass fiber according to claim 1 , wherein the composition has a temperature difference ΔTxy between a forming temperature Tx and a liquidus temperature Ty of 90° C. or more.3. The composition for a glass fiber according to claim 1 , wherein the composition has a forming temperature Tx of 1 claim 1 ,365° C. or less.4. The composition for a glass fiber according to claim 1 , wherein the composition has an elastic modulus E of 90 GPa or more.5. The composition for a glass fiber according to claim 1 , wherein the composition has a linear thermal expansion coefficient α of 45×10/° C. or less.6. A glass fiber claim 1 , comprising 95 mass % or more of glass formed of the composition for a glass fiber of in terms of solid content.7. The glass fiber according to claim 6 , wherein a product form of the glass fiber comprises any one of a chopped strand claim 6 , a yarn claim 6 , and a roving.8. A glass-fiber-containing composite material claim 6 , which is obtained by compositing the glass fiber of with an organic medium claim 6 , concrete claim 6 , or mortar.9. A method of producing a glass fiber claim 1 , comprising forming glass formed of the composition for a glass fiber of into a fiber shape.10. The method of producing a glass fiber according to claim 9 , wherein the forming is performed with a bushing apparatus.11. The method of ...

CONTINUOUS SMELTING AND FIBER SPINNING PROCESS

Described herein is a method of forming a smelting byproduct that can be formed into an inorganic fiber, the method comprising: a) introducing silicomanganese slag and a smelting additive into a submerged arc furnace comprising a collection zone; b) smelting the silicomanganese slag into a silicomanganese metal and a smelting byproduct, whereby the silicomanganese metal settles to a lower portion of the collection zone and the smelting byproduct gathers in an upper portion of the collection zone due to density differential between the silicomanganese metal and the smelting byproduct; c) flowing the smelting byproduct from the collection zone from a first outlet; and d) flowing the silicomanganese metal from the collection zone from a second outlet. 1. A method of forming a smelting byproduct that can be formed into an inorganic fiber , the method comprising:a) introducing silicomanganese slag into a submerged arc furnace comprising a collection zone;b) smelting the silicomanganese slag into a silicomanganese metal and a smelting byproduct, whereby the silicomanganese metal settles to a lower portion of the collection zone and the smelting byproduct gathers in an upper portion of the collection zone due to density differential between the silicomanganese metal and the smelting byproduct;c) flowing the smelting byproduct from the collection zone from a first outlet; andd) flowing the silicomanganese metal from the collection zone from a second outlet.2. The method according to claim 1 , wherein step b) comprises applying power to the silicomanganese slag such that the silicomanganese slag is smelted by resistance heating.35-. (canceled)6. The method according to claim 1 , wherein step c) further comprises:c-1) flowing the smelting byproduct from the first outlet to a fiber spinning apparatus;c-2) processing the smelting byproduct by the fiber spinning apparatus to form the inorganic fiber.78-. (canceled)9. The method according to claim 1 , wherein the silicomanganese ...

HIGH-MODULUS GLASS FIBER COMPOSITION, GLASS FIBER AND COMPOSITE MATERIAL THEREOF

A high-modulus glass fiber composition includes the following components with corresponding amounts by weight percentage: 42-56.8% of SiO, 15.8-24% of AlO, 9.2-18% of MgO, 0.1-6.5% of CaO, greater than 8% and less than or equal to 20% of YO, 0.01-4% of TiO, 0.01-1.5% of FeO, 0.01-1.5% of NaO, 0-1.5% of KO, 0-0.7% of LiO, 0-3% of SrO, 0-2.9% of LaO. A total weight percentage of the above components is greater than or equal to 98%, and a weight percentage ratio C1=YO/CaO is greater than or equal to 2.1. 143.-. (canceled)45. The high-modulus glass fiber composition of claim 44 , wherein a weight percentage ratio C2=MgO/CaO is greater than 2.46. The high-modulus glass fiber composition of claim 44 , wherein a weight percentage ratio C3=YO/(AlO+MgO) is greater than or equal to 0.31.47. The high-modulus glass fiber composition of claim 44 , wherein the weight percentage ratio C1=YO/CaO is greater than or equal to 2.85.48. The high-modulus glass fiber composition of claim 44 , wherein the weight percentage of YOis greater than 10% and less than or equal to 18%.49. The high-modulus glass fiber composition of claim 44 , wherein the weight percentage of SiOis 44-55.9%.50. The high-modulus glass fiber composition of claim 44 , wherein the weight percentage of AlOis 15.8-20.4%.51. The high-modulus glass fiber composition of claim 44 , wherein the weight percentage of MgO is 9.4-13.5%.52. The high-modulus glass fiber composition of claim 44 , wherein the weight percentage of CaO is 0.5-5.9%.53. The high-modulus glass fiber composition of claim 44 , wherein a weight percentage ratio of YO/MgO is greater than or equal to 0.8.56. The high-modulus glass fiber composition of claim 44 , further comprising one or more components selected from the group consisting of ZrO claim 44 , CeO claim 44 , ZnO claim 44 , BO claim 44 , Fand SO claim 44 , with a combined weight percentage being less than 2%.61. The high-modulus glass fiber composition of claim 44 , being free of BO.62. A glass ...

HIGH-MODULUS GLASS FIBER COMPOSITION, GLASS FIBER AND COMPOSITE MATERIAL THEREOF

A high-modulus glass fiber composition includes the following components with corresponding amounts by weight percentage: 43-58% of SiO, 15.5-23% of AlO, 8-18% of MgO, ≥25% of AlO+MgO, 0.1-7.5% of CaO, 7.1-22% of YO, ≥16.5% of MgO+YO, 0.01-5% of TiO, 0.01-1.5% of FeO, 0.01-2% of NaO, 0-1.5% of KO, 0-0.9% of LiO, 0-4% of SrO, and 0-5% of LaO+CeO. 128.-. (canceled)32. The high-modulus glass fiber composition of claim 29 , wherein a weight percentage ratio C1═MgO/CaO is greater than or equal to 1.7.33. The high-modulus glass fiber composition of claim 29 , wherein a weight percentage ratio C2═YO/MgO is greater than or equal to 0.8.34. The high-modulus glass fiber composition of claim 29 , wherein a weight percentage ratio C3═YO/CaO is greater than or equal to 1.9.35. The high-modulus glass fiber composition of claim 29 , wherein a weight percentage ratio C4═AlO/YOis 1-2.5.36. The high-modulus glass fiber composition of claim 29 , wherein the weight percentage of YOis 10.1-20%.37. The high-modulus glass fiber composition of claim 29 , wherein the weight percentage of SiOis 44-55.9%.38. The high-modulus glass fiber composition of claim 29 , wherein the weight percentage of AlOis 15.8-20.4%.39. The high-modulus glass fiber composition of claim 29 , wherein the weight percentage of CaO is 0.5-5.9%.40. The high-modulus glass fiber composition of claim 29 , wherein a weight percentage ratio C1═MgO/CaO is greater than or equal to 1.7 claim 29 , and a weight percentage ratio C2═YO/MgO is greater than or equal to 0.8.41. The high-modulus glass fiber composition of claim 29 , wherein a weight percentage ratio C2═YO/MgO is greater than or equal to 0.8 claim 29 , and a weight percentage ratio C3═YO/CaO is greater than or equal to 2.1.42. The high-modulus glass fiber composition of claim 29 , wherein a weight percentage ratio C1═MgO/CaO is greater than or equal to 1.7 claim 29 , a weight percentage ratio C2═YO/MgO is greater than or equal to 0.8 claim 29 , and a weight percentage ...

Inorganic fiber with improved shrinkage and strength

An inorganic fiber containing silica and magnesia as the major fiber components which further includes intended lithium oxide and strontium oxide additions to improve the thermal stability of the fiber. The inorganic fiber exhibits good thermal performance at 1260° C. and greater, retains mechanical integrity after exposure to the use temperature, and exhibits low biopersistence in physiological fluids. Also provided are thermal insulation product forms, methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from a plurality of the inorganic fibers.

GLASS STRANDS CAPABLE OF REINFORCING ORGANIC AND/OR INORGANIC MATERIALS

The invention relates to glass reinforcement strands whose composition comprises the following constituents in the limits defined below, expressed as percentages by weight: 135-. (canceled)37. The class strand as claimed in claim 36 , wherein the composition has an SiO+AlOcontent of greater than 70%.38. The glass strand as claimed in claim 36 , wherein the composition has an AlO/(AlO+CaO+MgO) weight ratio that ranges from 0.40 to 0.44.39. The glass strand as claimed in claim 36 , wherein said composition contains no F.40. The glass strand as claimed in claim 36 , wherein said composition comprises a CaO/MgO ratio of ≧1.3 and ≦2.41. The glass strand as claimed in claim 36 , wherein said composition contains no BO.42. The glass strand as claimed in claim 36 , wherein said glass stand possesses an anorthite crystallization phase claim 36 , a diopside crystallization phase claim 36 , and a forsterite crystallization phase.43. The glass strand as claimed in claim 36 , wherein said composition comprises 13-15% by weight CaO.44. The glass strand as claimed in claim 36 , wherein said composition comprises 12.5-13.9% by weight CaO.45. The glass strand as claimed in claim 36 , wherein said glass strand has a liquidus temperature of less than or equal to 1 claim 36 ,210° C.46. An assembly comprising a plurality of the glass strands of .47. A composite comprising a plurality of the glass strands of and at least one of an organic material and an inorganic material.49. The composition as claimed in claim 48 , wherein said composition has a forming range (T(log η=3)−T) of more than 50° C.50. The composition as claimed in claim 48 , wherein said composition comprises a CaO/MgO ratio of ≧1.3 and ≦2.51. The composition as claimed in claim 48 , wherein said composition contains no BO.53. The glass strand as claimed in claim 52 , wherein the composition has an SiO+AlOcontent greater than 70%.54. The glass strand as claimed in claim 52 , wherein the composition has an AlO/(AlO+CaO+MgO) ...

GLASS STRANDS CAPABLE OF REINFORCING ORGANIC AND/OR INORGANIC MATERIALS

The invention relates to glass reinforcement strands whose composition comprises the following constituents in the limits defined below, expressed as percentages by weight:

HIGH-MODULUS GLASS FIBER COMPOSITION, GLASS FIBER AND COMPOSITE MATERIAL THEREFROM

The present invention provides a high-modulus glass fiber composition, a glass fiber and a composite material therefrom. The glass fiber composition comprises the following components expressed as percentage by weight: 55-64% SiO, 13-24% AlO, 0.1-6% YO, 3.4-10.9% CaO, 8-14% MgO, lower than 22% CaO+MgO+SrO, lower than 2% LiO+NaO+KO, lower than 2% TiO, lower than 1.5% FeO, 0-1.2% LaO, wherein the range of the weight percentage ratio C1=(LiO+NaO+KO)/(YO+LaO) is greater than 0.26. Said composition can significantly increase the glass elastic modulus, effectively inhibit the crystallization tendency of glass, decrease the liquidus temperature, secure a desirable temperature range (ΔT) for fiber formation and enhance the fining of molten glass, thus making it particularly suitable for production of high-modulus glass fiber with refractory-lined furnaces. 2. The high-modulus glass fiber composition according to claim 1 , wherein the range of the weight percentage ratio C2=MgO/(CaO+SrO) is 0.8-2.1.4. The high-modulus glass fiber composition according to claim 1 , wherein the content range of LiO by weight is 0.1-1.5%.5. The high-modulus glass fiber composition according to claim 1 , wherein the content range of SrO by weight is 0.1-2.5%.6. The high-modulus glass fiber composition according to claim 1 , wherein the content range of CaO by weight is 6-10.3%.7. The high-modulus glass fiber composition according to claim 1 , wherein the content range of MgO by weight is 9.4-13%.8. The high-modulus glass fiber composition according to claim 2 , wherein the content range of YOby weight is 0.5-2.4%.9. The high-modulus glass fiber composition according to claim 2 , wherein the content range of YOby weight is 1.5-2.4%.15. The high-modulus glass fiber composition according to claim 1 , wherein the content range of LaOby weight is 0.1-1%.17. The high-modulus glass fiber composition according to claim 1 , comprising CeOwith the weight percentage of 0-1%.18. A glass fiber claim 1 , ...

GLASS FIBER COMPOSITION, GLASS FIBER AND COMPOSITE MATERIAL THEREOF

A composition for producing a glass fiber, including the following components with corresponding percentage amounts by weight: SiO: 57.4-60.9%; AlO: greater than 17% and less than or equal to 19.8%; MgO: greater than 9% and less than or equal to 12.8%; CaO: 6.4-11.8%; SrO: 0-1.6%; NaO+KO: 0.1-1.1%; FeO: 0.05-1%; TiO: lower than 0.8%; and SiO+AlO: lower than or equal to 79.4%. The total weight percentage of the above components in the composition is greater than 99%. The weight percentage ratio of AlO+MgO to SiOis between 0.43 and 0.56, and the weight percentage ratio of CaO+MgO to SiO+AlOis greater than 0.205. The composition can significantly increase the glass modulus, effectively reduce the glass crystallization rate, secure a desirable temperature range (ΔT) for fiber formation and enhance the refinement of molten glass, thus making it particularly suitable for high performance glass fiber production with refractory-lined furnaces. 4. The composition of claim 1 , wherein a combined weight percentage AlO+MgO is between 26.1% and 31%.5. The composition of claim 1 , wherein a weight percentage ratio C3=(MgO+SrO)/CaO is between 0.8 and 1.6.6. The composition of claim 1 , comprising between 58.1 and 59.9 wt. % of SiO.7. The composition of claim 1 , further comprising less than 1 wt. % of LiO claim 1 , ZrO claim 1 , CeO claim 1 , BOand F claim 1 , or a mixture thereof.8. The composition of claim 1 , further comprising no more than 0.55 wt. % of LiO.9. The composition of claim 1 , wherein claim 1 , when the weight percentage ratio (CaO+MgO)/AlOis greater than 1 and the weight percentage ratio (MgO+SrO)/CaO is greater than 0.9 claim 1 , the composition is free of LiO.10. The composition of claim 1 , comprising between 0.5 and 1.3 wt. % of SrO.11. The composition of claim 1 , comprising no more than 0.65 wt. % of NaO.12. The composition of claim 1 , comprising MgO with a weight percentage greater than 11% and less than or equal to 12.5%.14. A glass fiber claim 1 , being ...

HIGH MODULUS GLASS FIBRE COMPOSITION, AND GLASS FIBRE AND COMPOSITE MATERIAL THEREOF

The present invention provides a high-modulus glass fiber composition, a glass fiber and a composite material therefrom. The glass fiber composition comprises the following components expressed as percentage by weight: 55-64% SiO, 13-24% AlO, 0.1-6% YO, 3.4-10.9% CaO, 8-14% MgO, lower than 22% CaO+MgO+SrO, lower than 2% LiO+NaO+KO, lower than 2% TiO, lower than 1.5% FeO, 0-1.2% LaO, wherein the range of the weight percentage ratio C1=(LiO+NaO+KO)/(YO+LaO) is greater than 0.26. Said composition can significantly increase the glass elastic modulus, effectively inhibit the crystallization tendency of glass, decrease the liquidus temperature, secure a desirable temperature range (ΔT) for fiber formation and enhance the fining of molten glass, thus making it particularly suitable for production of high-modulus glass fiber with refractory-lined furnaces. 2. The high-modulus glass fiber composition according to claim 1 , wherein the range of the weight percentage ratio C2=MgO/(CaO+SrO) is 0.8-2.1.4. The high-modulus glass fiber composition according to claim 1 , wherein the content range of LiO by weight is 0.1-1.5%.5. The high-modulus glass fiber composition according to claim 1 , wherein the content range of SrO by weight is 0.1-2.5%.6. The high-modulus glass fiber composition according to claim 1 , wherein the content range of CaO by weight is 6-10.3%.7. The high-modulus glass fiber composition according to claim 1 , wherein the content range of MgO by weight is 8.6-13%.8. The high-modulus glass fiber composition according to claim 2 , wherein the content range of YOby weight is 0.5-5%.9. (canceled)15. (canceled)16. The high-modulus glass fiber composition according to claim 1 , wherein the content range of LaOby weight is 0.1-1%.17. (canceled)18. (canceled)19. The high-modulus glass fiber composition according to claim 1 , wherein the content range of MgO by weight is greater than 12% and not greater than 13%.21. The high-modulus glass fiber composition according to ...

HIGH PERFORMANCE GLASS FIBRE COMPOSITION, AND GLASS FIBRE AND COMPOSITE MATERIAL THEREOF

The present invention provides a glass fibre composition, a glass fibre and a composite material therefrom. The glass fibre composition comprises the following components expressed as percentage by weight: 53-64% SiO, greater than 19% and lower than 25% AlO, 0.05-7% YO+LaO+GdO, not greater than 1% LiO+NaO+KO, 10-24% CaO+MgO+SrO, 1.5-12% CaO, lower than 2% TiO, lower than 1.5% FeO. Said composition can not only significantly improve the elastic modulus and chemical stability of the glass, but also overcome the technical problems in the manufacture of traditional high-performance glasses including high risk of crystallization, fining difficulty of molten glass and production efficiency difficulty with refractory-lined furnaces, significantly reduce the liquidus and forming temperatures and greatly reduce the crystallization rate under the same conditions, thus making it particularly suitable for production of high-performance glass fibre with excellent chemical stability in refractory-lined furnaces. 2. The high-performance glass fiber composition according to claim 1 , wherein the range of the weight percentage ratio C1=REO/RO is greater than 0.5.3. The high-performance glass fiber composition according to claim 1 , wherein the content range of LiO by weight percentage is 0.05-0.85%.4. The high-performance glass fiber composition according to claim 1 , wherein the content range of RO═LiO+NaO+KO by weight percentage is lower than 0.97%.5. (canceled)6. (canceled)7. The high-performance glass fiber composition according to claim 1 , wherein the range of the weight percentage ratio C2=AlO/MgO is greater than 1.8.8. (canceled)9. The high-performance glass fiber composition according to claim 1 , wherein the content range of SiO+AlOby weight percentage is lower than 80.4%.10. (canceled)14. (canceled)15. (canceled)2023-. (canceled)24. The high-performance glass fiber composition according to claim 1 , wherein the content range of SrO by weight percentage is 0.1-2%.2526-. ( ...

MANUFACTURING OF CONTINUOUS MINERAL FIBERS

Continuous basalt fibers are produced by melting basalt rock in a submerged combustion melter, and by forming said melt into continuous basalt fibers. 1. Process for the manufacturing of continuous mineral fibers , comprising the steps of:introducing a solid batch material for preparation of continuous mineral fibers into a melter;melting the solid batch material in the melter by submerged combustion to form a liquid melt;forming at least a portion of the liquid melt into continuous mineral fibers.2. The process of wherein the raw material comprises 45.0-60.0 wt % SiO2 claim 1 , 12.0-25.0 wt % Al2O3 claim 1 , 5.0-25.0 wt % tot iron oxide expressed as Fe2O3 claim 1 , total alkali of 2.0-6.0 wt % claim 1 , 5.0-25.0 wt % CaO claim 1 , 4.0-25.0 wt % MgO and 0.0-5.0 wt % TiO2 and trace amounts of other oxides to add up to 100%.3. The process of wherein the raw material is basalt rock and the obtained continuous mineral fibers are basalt fibers.4. The process of claim 1 , wherein the melting chamber walls comprise double steel walls separated by circulating cooling liquid.5. The process of claim 1 , wherein heat is recovered from the hot fumes and/or from the cooling liquid.6. The process of claim 1 , wherein heat is recovered from the hot fumes to preheat the raw materials.7. The process of claim 1 , wherein part at least of the melt is withdrawn continuously or batchwise from the melter.8. The process of claim 1 , wherein the melter comprises at least one submerged burner claim 1 , and the said at least one submerged burner is controlled such as to maintain the melt in a turbulent state such that the volume of the turbulent melt is at least 8% higher than the level the melt would be at if no burners are firing.9. The process of claim 8 , wherein it is operated such that no significant foam layer is generated over the top of the melt level.10. The process of claim 1 , wherein the submerged combustion is performed such that a substantially toroidal melt flow pattern is ...

METHOD FOR THE PRODUCTION OF MINERAL WOOL

A process for manufacturing insulating products based on mineral wool includes: the application, on mineral wool fibers, of a binder composition containing (a) at least one carbohydrate selected from reducing sugars, non-reducing sugars, hydrogenated sugars and a mixture thereof, and (b) at least one crosslinking agent for crosslinking the carbohydrate(s); the evaporation of the solvent phase of the binder composition; and the thermal curing of the non-volatile fraction of the composition. A polysaccharide-free oil-in-water emulsion comprising water, a mineral oil and from 0.5 to 5.0 parts by weight per 100 parts by weight of mineral oil of at least one preferably nonionic surfactant, is added to the binder composition, preferably immediately before the application thereof onto the mineral wool fibers, the mean diameter of the oil droplets of the oil-in-water emulsion, determined by laser diffraction particle size analysis, being greater than 5 μm. 1. A process for manufacturing insulating products based on mineral wool , comprising (a) at least one carbohydrate selected from reducing sugars, non-reducing sugars, hydrogenated sugars and a mixture thereof,', '(b) at least one crosslinking agent for crosslinking the carbohydrate(s),, 'applying, onto mineral wool fibers, a binder composition containing'}evaporating the solvent phase of the binder composition, andthermal curing of the non-volatile fraction of the composition,wherein a polysacchande-free oil-in-water emulsion comprising water, a mineral oil and from 0.5 to 5.0 parts by weight per 100 parts by weight of mineral oil of at least one preferably nonionic surfactant, is added to the binder composition, the mean diameter, determined by laser diffraction particle size analysis, of the oil droplets of the oil-in-water emulsion being greater than 5 μm.2. The process as claimed in claim 1 , wherein the crosslinking agent is selected from polycarboxylic acids claim 1 , salts and anhydrides of polycarboxylic acids ...

METHOD FOR THE MANUFACTURE OF MINERAL WOOL PRODUCTS

A method for the manufacture of mineral wool products is disclosed. In one example, the method comprises reacting an aqueous phenol-formaldehyde resole with free formaldehyde with a first amount of urea, thereby preparing a prereact. The prereact is contacted with a second amount of urea. The resulting mixture of prereact and second amount of urea, as part of a binder, optionally with additives is applied to the surface of mineral fibers. The binder is cured on the surface of the mineral fibers. A mineral wool product with reduced emissions of formaldehyde is also disclosed. 116-. (canceled)18. The method according to claim 17 , wherein the total amount of urea is 30-35 wt. % relative to the sum of the dry weight content of the phenol-formaldehyde resole and the total amount of urea claim 17 , and U2 is 22-33 wt. % claim 17 , preferably 25-30 wt. % of the total amount of urea.19. The method according to claim 17 , wherein the total amount of urea is between 30 and 35 wt. % relative to the sum of the dry weight content of the phenol-formaldehyde resole and the total amount of urea claim 17 , and the second amount of urea used in c) is between 20-35 wt. % of the total amount of urea.20. The method according to claim 17 , provided that the addition of a resin apart from the aqueous phenol-formaldehyde resole of step a) is excluded.21. The method according to claim 17 , wherein the phenol-formaldehyde resole in step a) has a free formaldehyde content at most 10 wt. % related to the dry weight content of the resole claim 17 , preferably at most 6 wt. %.22. The method according to claim 17 , wherein the phenol-formaldehyde resole has a water dilutability at 20° C. greater than 10 parts by weight claim 17 , a viscosity of at most 50 mPa·s at 20° C. and 45 wt. % dry weight content claim 17 , a pH higher than 8 claim 17 , and a B-stage gel time ranging from 2-15 minutes at 130° C.23. The method according to claim 17 , wherein in step b) claim 17 , the phenol-formaldehyde ...

METHOD TO PRODUCE MINERAL WOOD BOARDS

This invention relates to a method for manufacturing a mineral wool board, comprising the following steps in the given order: providing mineral wool fibers having a fiber length of 50 to 800 μm; gluing the fibers with a liquid binder comprising phenolic resin, whereby the ratio of binder (based on the solids content of the resin of the binder) to mineral wool fibers is 5 to 30% by weight, and pressing the glued fibers using heat and pressure. 1. A method for manufacturing a mineral wool board comprising the following steps in the given order:a) providing mineral wool fibers with a fiber length of 50 to 800 μm;b) gluing the fibers with a liquid binder comprising phenolic resin, whereby the ratio of binder (based on the solids content of the resin of the binder) to mineral wool fibers is 5 to 30% by weight, and{'sup': '3', 'c) pressing the glued fibers using heat and pressure to a density of more than 500 kg/m.'}2. The method according to claim 1 , wherein the mineral wool fibers are glass wool fibers and/or rock wool fibers.3. The method according to claim 1 , wherein additives are included to the binder.4. The process according to claim 3 , wherein the additives are mineral fillers claim 3 , and in particular kaolin claim 3 , quartz flour claim 3 , limestone and/or alumina.5. The method according to claim 4 , wherein the mineral fillers have an average grain size dfrom 10 nm to 250 μm claim 4 , more preferably from 300 nm to 100 μm and most preferably from 500 to 900 nm.6. The method according to claim 4 , wherein the mineral fillers are added in an amount of 5 to 150% by weight based on the mass of the solids content of the resin in the liquid binder claim 4 , preferably 10 to 100% by weight and most preferably 35-90% by weight.7. The method according to claim 1 , wherein the mineral wool fibers have a fiber length of 60 to 700 μm claim 1 , preferably 80 to 600 μm and most preferably 100 to 500 μm.8. The method according to claim 1 , wherein the step of pressing ...

HIGH MODULUS GLASS FIBRE COMPOSITION, AND GLASS FIBRE AND COMPOSITE MATERIAL THEREOF

A high-modulus glass fiber composition, and a glass fiber and a composite material therefrom. The glass fiber composition comprises the following components in weight percentage: SiO55.7 to 58.9%, AlO15 to 19.9%, YO0.1 to 4.3%, LaOless than or equal to 1.5%, CeOless than or equal to 1.2%, CaO 6 to 10%, MgO 9.05 to 9.95%, SrO less than or equal to 2%, LiO+NaO+KO less than or equal to 0.99%, LiO less than or equal to 0.65%, FeOless than 1%, TiO0.1 to 1.5%; wherein, the range of the weight percentage ratio C1=YO/(YO+LaO+CeO) is greater than 0.6. The composition can greatly improve the elastic modulus of glass, significantly reduce liquidus temperature and forming temperature of the glass, greatly reduce the crystallization rate of molten glass and bubble amount under the same conditions, and therefore is more suitable for large-scale tank furnace production of high-modulus fiberglass with low bubble amount. 2. The high-modulus glass fiber composition of claim 1 , wherein the range of the total content of LaO+CeOexpressed as weight percentage is 0.1-2%.3. The high-modulus glass fiber composition of claim 1 , wherein the range of the weight percentage ratio C2=SiO/CaO is 5.8-9.3.4. The high-modulus glass fiber composition of claim 1 , wherein the range of the weight percentage ratio C3=MgO/(CaO+SrO) is 0.9-1.6.5. The high-modulus glass fiber composition of claim 1 , wherein the content of LiO expressed as weight percentage is 0.05-0.55%.6. The high-modulus glass fiber composition of claim 1 , wherein the content of YOexpressed as weight percentage is 0.5-3.9%.7. The high-modulus glass fiber composition of claim 1 , wherein the range of the weight percentage ratio C1=YO/(YO+LaO+CeO) is 0.75-0.97.9. The high-modulus glass fiber composition of claim 1 , wherein the content of LaOexpressed as weight percentage is 0.05-1.2%.10. The high-modulus glass fiber composition of claim 1 , wherein the content of CeOexpressed as weight percentage is 0.05-1%.14. The high-modulus glass ...

HIGHLY TEMPERATURE-RESISTANT GLASS FIBER AND PREPARATION METHOD THEREFOR

A highly temperature-resistant glass fiber and a preparation method therefor. The glass fiber comprises 62-66 wt % of SiO, 14-19 wt % of AlO, 15-20 wt % of CaO, 0-2 wt % of MgO, 0-3 wt % of FeO, and 0-1.2 wt % of TiO, the total content of NaO and KO is 0.1-0.8 wt %. By precisely controlling the mixture of the components, the glass fiber has good resistance to high temperature and formability, and significantly increases the high-temperature softening point. The glass fiber has a forming temperature of not exceeding 1380° C., an upper limit temperature of devitrification of lower than 1280° C., and a high temperature softening temperature of 950° C. or above. 2. The glass fiber according to claim 1 , comprising 63-65 wt % of SiO.3. The glass fiber according to claim 1 , comprising 16-18 wt % of AlO.4. The glass fiber according to claim 1 , comprising 16-19 wt % of CaO.5. The glass fiber according to claim 1 , comprising 0-1 wt % of MgO.6. The glass fiber according to claim 1 , comprising 0.1-2 wt % of FeO.7. The glass fiber according to claim 1 , comprising 0.1-0.8 wt % of TiO.8. The glass fiber according to claim 1 , wherein the total content of NaO and KO is 0.1-0.4 wt %.9. The glass fiber according to claim 1 , further comprising ZrOand/or BaO in a total amount of not more than 2 wt %.10. A method for preparing the high temperature resistant glass fiber according to claim 1 , comprising the steps of:a) selecting glass raw materials according to the components of the high temperature resistant glass fiber, and calculating the amount of each of the raw materials used;b) mixing each of the raw materials and then melting to obtain a glass liquid; andc) drawing the glass liquid into a glass filament by a wire drawing machine and then cooling to obtain the high temperature resistant glass fiber. The present application claims priority to Chinese Patent Application No. 201710463953.5, titled “A HIGH TEMPERATURE RESISTANT GLASS FIBER AND A PREPARATION METHOD THEREOF”, ...

MINERAL FIBRES

Mineral fibers that exhibit a chemical composition comprising the following constituents, as percentages by weight: 2. The mineral fibers as claimed in claim 1 , wherein the RO/BOmolar ratio is from 0.23 to 0.54.3. The mineral fibers as claimed in claim 1 , wherein the CaO/(CaO+BO) molar ratio is from 0.75 to 0.95.4. The mineral fibers as claimed in claim 1 , wherein a sum of the contents of SiO+CaO+MgO+BO+RO represents at least 95% claim 1 , by weight claim 1 , of the chemical composition of said mineral fibers.5. The mineral fibers as claimed in claim 1 , wherein said mineral fibers comprise a content of MgO of 8.1 to 9.5%.6. The mineral fibers as claimed in claim 1 , wherein said mineral fibers comprise a content of BOof 2.5 to 5.0%.7. The mineral fibers as claimed in claim 1 , wherein said mineral fibers comprise a content of NaO of 0.1 to 2.0%.8. The mineral fibers as claimed in claim 1 , wherein said mineral fibers comprise a content of KO of at most 1.0%.9. A process for the manufacture of the mineral fibers as claimed in claim 1 , comprising:melting a vitrifiable mixture suitable for to the chemical composition of said mineral fibers, and then fiberizing.10. A thermal insulation product comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the mineral fibers as claimed in .'}11. The mineral fibers as claimed in claim 1 , wherein the CaO/(CaO+BO) molar ratio is from 0.78 to 0.91.12. The mineral fibers as claimed in claim 1 , wherein a sum of the contents of SiO+CaO+MgO+BO+RO represents at least 98% claim 1 , by weight claim 1 , of the chemical composition of said mineral fibers.13. The mineral fibers as claimed in claim 1 , wherein said mineral fibers comprise a content of MgO of 8.3 to 9.3%.14. The mineral fibers as claimed in claim 1 , wherein said mineral fibers comprise a content of BOof 3.0 to 4.5%.15. The mineral fibers as claimed in claim 1 , wherein said mineral fibers comprise a content of KO of at most 0.5%. The present invention relates to ...

BIO-SOLUBLE INORGANIC FIBER

Inorganic fibers including the following composition, SiO, MgO and CaO being main components: SiO: 73.6 wt % to 85.9 wt %, MgO: 9.0 wt % to 21.3 wt %, CaO: 5.1 wt % to 12.4 wt %, AlO: 0 wt % or more and less than 2.3 wt %, and FeO: 0 wt % to 0.50 wt %. 1. Inorganic fibers comprising the following composition , SiO , MgO and CaO being main components:{'sub': '2', 'SiO: 73.6 wt % to 85.9 wt %'}MgO: 9.0 wt % to 15.0 wt %CaO: 5.1 wt % to 12.4 wt %{'sub': 2', '3, 'AlO: 0 wt % or more and less than 2.3 wt %'}{'sub': 2', '3, 'FeO: 0 wt % to 0.50 wt %'}SrO: less than 0.1 wt %.2. The inorganic fibers according to claim 1 , which comprise the following composition:{'sub': '2', 'SiO: 74.0 wt % to 80.0 wt %'}MgO: 9.0 wt % to 15.0 wt %CaO: 5.1 wt % to 12.4 wt %{'sub': 2', '3, 'AlO: 0 wt % or more and less than 2.3 wt %'}{'sub': 2', '3, 'FeO: 0 wt % to 0.50 wt %'}SrO: less than 0.1 wt %.3. The inorganic fibers according to claim 1 , which comprise MgO in an amount of 9.0 wt % to 14.0 wt %.4. The inorganic fibers according to claim 1 , which comprise AlOin an amount of 0.17 wt % to 2.2 wt %.5. The inorganic fibers according to claim 1 , which comprise ZrOin an amount of more than 0.1 wt % and 10.9 wt % or less.6. The inorganic fibers according to claim 1 , which comprise TiOin an amount of more than 0.1 wt % and 10.9 wt % or less.7. The inorganic fibers according to claim 1 , which comprise alkali metal oxide in an amount of more than 0.01 mol % and less than 0.20 mol %.8. The inorganic fibers according to claim 1 , which comprise BOin an amount of less than 0.1 wt %.9. The inorganic fibers according to claim 1 , wherein the total of the amounts of SiO claim 1 , MgO and CaO is 90.0 wt % or more.10. The inorganic fibers according to claim 1 , wherein the total of the amounts of SiO claim 1 , MgO and CaO is 93.0 wt % or more.11. The inorganic fibers according to claim 1 , wherein the total of the amounts of SiO claim 1 , MgO and CaO is 96.0 wt % or more.12. A secondary product or ...

HIGH PERFORMANCE FIBERGLASS COMPOSITION

A glass composition is provided that includes about 55.0 to 60.4% by weight SiO, about 19.0 to 25.0% by weight AlO, about 8.0 to 15.0% by weight MgO, about 7 to 12.0% by weight CaO, less than 0.5% by weight LiO, 0.0 to about 1.0% by weight NaO, and 0 to about 1.5% by weight TiO. The glass composition has a fiberizing temperature of no greater than about 2,500° F. Glass fibers formed from the inventive composition may be used in applications that require high stiffness, and low weight. Such applications include woven fabrics for use in forming wind blades and aerospace structures. 1. A glass composition comprising:{'sub': '2', 'SiOin an amount from 55.0 to 60.4% by weight;'}{'sub': 2', '3, 'AlOin an amount from 19.0 to 25.0% by weight;'}CaO in an amount from 7 to 12.0% by weight;MgO in an amount from 8.0 to 15.0% by weight;{'sub': '2', 'NaO in an amount from 0 to 1.0% by weight;'}Li2O in an amount less than 0.5% by weight; and{'sub': 2', '2', '3, 'TiOin an amount from 0.0 to 1.5% by weight, expressed as percentages by weight based on the weight of the entire composition, wherein the weight percent ratio of AlO/MgO is less than 2.0, and wherein said glass composition has a fiberizing temperature no greater than 2,500° F.'}2. The glass composition according to claim 1 , wherein the combined amounts of SiO claim 1 , AlO claim 1 , MgO claim 1 , and CaO is at least 98% by weight and less than 99.5% by weight.3. The glass composition according to claim 1 , wherein the combined amounts of MgO and CaO is greater than 20% by weight.4. The glass composition according to claim 1 , wherein the combined amounts of MgO and CaO is less than 22% by weight.5. The glass composition according to claim 1 , wherein said composition comprises 19.5 to 21% by weight AlO.6. The glass composition according to claim 1 , wherein the weight percent ratio of AlO/MgO is no greater than 1.8.7. The glass composition according to claim 1 , wherein said composition is essentially free of BO.8. The ...

INORGANIC FIBER

An inorganic fiber containing silica and magnesia as the major fiber components which further includes intended synergistic amounts of calcia and, an additional alkali metal oxide other than magnesia, such as lithium oxide, to improve the thermal performance and manufacturability of the fiber. The inorganic fiber is easier to manufacture, has a better fiber quality, exhibits good thermal performance at a use temperature of 1260° C. and greater, retains mechanical integrity after exposure to the use temperature, and exhibits low biopersistence in physiological fluids. Also provided are methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from the inorganic fibers. 1. An inorganic fiber comprising a fiberization product of silica , about 5 weight percent or greater magnesia , about 1 weight percent or greater calcia , and at least one alkali metal oxide , wherein said inorganic fiber exhibits a shrinkage of 5% or less after exposure to a temperature of 1400° C. for 24 hours.2. The inorganic fiber of claim 1 , wherein said inorganic fiber exhibits a shrinkage of 4% or less after exposure to a temperature of 1260° C. for 24 hours.3. The inorganic fiber of claim 1 , wherein said inorganic fiber comprises the fiberization product of about 65 to about 86 weight percent silica claim 1 , about 5 to about 35 weight percent magnesia claim 1 , about 1 weight percent or greater calcia claim 1 , and at least one alkali metal oxide.4. The inorganic fiber of claim 1 , wherein said inorganic fiber comprises the fiberization product of about 65 to about 86 weight percent silica claim 1 , about 5 to about 35 weight percent magnesia claim 1 , about 1 weight percent or greater calcia claim 1 , and greater than 0 to about 5 weight percent at least one alkali metal oxide.5. The inorganic fiber of claim 4 , wherein said at least one alkali metal oxide comprises lithia.6. The inorganic fiber of claim 5 , wherein said inorganic fiber ...

GLASS FIBER, COMPOSITION FOR PRODUCING THE SAME, AND COMPOSITE MATERIAL COMPRISING THE SAME

A composition for producing a glass fiber, including the following components with corresponding percentage amounts by weight: SiO: 57.1-61.4%; AlO: 17.1-21%; MgO: 10.1-14.5%; YO: 1.1-4.3%; CaO: <6.5%; LiO+NaO+KO: ≤1%; LiO: ≤0.75%; TiO: <1.8%; and FeO: 0.05-1.2%. The total weight percentage of the above components in the composition is greater than or equal to 98%. The weight percentage ratio of AlOto SiOis greater than or equal to 0.285. The invention also provides a glass fiber produced using the composition and a composite material including the glass fiber. 4. The composition of claim 1 , wherein a weight percentage ratio (AlO+MgO+LiO)/YOis greater than or equal to 6.5.5. The composition of claim 1 , wherein a weight percentage ratio AlO/SiOis between 0.289 and 0.357.6. The composition of claim 1 , wherein a weight percentage ratio (YO+MgO)/SiOis greater than or equal to 0.2.7. The composition of claim 1 , comprising between 10.3 and 14 wt. % of MgO.8. The composition of claim 1 , wherein a weight percentage of MgO is greater than 11% and less than or equal to 13.5%.9. The composition of claim 1 , further comprising no more than 2 wt. % of CeO claim 1 , SrO claim 1 , LaO claim 1 , ZnO claim 1 , BO claim 1 , ZrO claim 1 , or a mixture thereof.10. The composition of claim 1 , wherein a total weight percentage of AlO+MgO+LiO is greater than or equal to 28.1%.11. The composition of claim 1 , wherein a weight percentage ratio MgO/CaO is greater than or equal to 1.6.12. The composition of claim 1 , comprising between 0.05 and 0.7 wt. % of LiO13. The composition of claim 1 , wherein a total weight percentage of LiO+NaO+KO is between 0.25% and 0.98%.17. The composition of claim 1 , wherein a total weight percentage of YOis greater than or equal to between 2.3 and 3.9%.19. A glass fiber claim 1 , being produced using the composition of .20. A composite material claim 19 , comprising the glass fiber of . This application is a continuation-in-part of International Patent ...

GLASS COMPOSITION FOR GLASS FIBER, GLASS FIBER, AND GLASS FIBER-REINFORCED RESIN COMPOSITION USING SAME

Provided is a glass composition for glass fiber having a low dielectric constant and a low dielectric loss tangent, suppressing occurrence of phase separation, and reducing viscosity at high temperatures. The glass composition for glass fiber includes: SiOin the range of 52.0 to 59.5% by mass; BOin the range of 17.5 to 25.5% by mass; AlOin the range of 9.0 to 14.0% by mass; SrO in the range of 0.5 to 6.0% by mass; MgO in the range of 1.0 to 5.0% by mass; and CaO in the range of 1.0 to 5.0% by mass, and includes Fand Clin the range of 0.1 to 2.5% by mass in total, with respect to the total amount. 1. A glass composition for glass fiber comprising:{'sub': '2', 'SiOin a range of 52.0 to 59.5% by mass;'}{'sub': 2', '3, 'BOin a range of 17.5 to 25.5% by mass;'}{'sub': 2', '3, 'AlOin a range of 9.0 to 14.0% by mass;'}SrO in a range of 0.5 to 6.0% by mass;MgO in a range of 1.0 to 5.0% by mass; andCaO in a range of 1.0 to 5.0% by mass, and comprising{'sub': 2', '2, 'Fand Clin a range of 0.1 to 2.5% by mass in total,'}with respect to total amount.2. The glass composition for glass fiber according to claim 1 , wherein a content X (% by mass) of BO claim 1 , a content Y (% by mass) of AlO claim 1 , and a content Z (% by mass) of SrO satisfy following formula (1):{'br': None, 'i': X', '×Y', 'Z, 'sup': 3', '1/2, '50.0≤()/(1000×)≤80.0\u2003\u2003(1).'}3. The glass composition for glass fiber according to claim 2 , wherein the X claim 2 , Y claim 2 , and Z satisfy following formula (2):{'br': None, 'i': X', '×Y', 'Z, 'sup': 3', '1/2, '56.5≤()/(1000×)≤66.0\u2003\u2003(2).'}4. The glass composition for glass fiber according to claim 1 , wherein a content X (% by mass) of BO claim 1 , a content Y (% by mass) of AlO claim 1 , a content Z (% by mass) of SrO claim 1 , and a total content W (% by mass) of Fand Clsatisfy following formula (3):{'br': None, 'i': W', '×X', '×Y', 'Z, 'sup': 1/8', '3', '1/2, '50.0≤()/(1000×)≤85.0\u2003\u2003(3).'}5. The glass composition for glass fiber ...

GLASS COMPOSITION FOR GLASS FIBER

Provided is a glass composition for glass fiber allowing spinning to be stably performed without mixing of red foreign substances into glass fibers. The glass composition for glass fiber includes, in relation to the total amount thereof, SiOin a content falling within a range from 57.0 to 60.0% by mass, AlOin a content falling within a range from 17.5 to 20.0% by mass, MgO in a content falling within a range from 8.5 to 12.0% by mass, CaO in a content falling within a range from 10.0 to 13.0% by mass and BOin a content falling within a range from 0.5 to 1.5% by mass, the total content of SiO, AlO, MgO and CaO being 98.0% by mass or more. 1. A glass composition for glass fiber comprising , in relation to the total amount thereof , SiOin a content falling within a range from 57.0 to 60.0% by mass , AlOin a content falling within a range from 17.5 to 20.0% by mass , MgO in a content falling within a range from 8.5 to 12.0% by mass , CaO in a content falling within a range from 10.0 to 13.0% by mass and BOin a content falling within a range from 0.5 to 1.5% by mass , the total content of SiO , AlO , MgO and CaO being 98.0% by mass or more.2. The glass composition for glass fiber according to claim 1 , comprising claim 1 , in relation to the total amount thereof claim 1 , SiOin a content falling within a range from 57.5 to 59.5% by mass claim 1 , AlOin a content falling within a range from 18.0 to 19.5% by mass claim 1 , MgO in a content falling within a range from 8.8 to 11.5% by mass and CaO in a content falling within a range from 10.3 to 12.5% by mass.3. The glass composition for glass fiber according to claim 1 , comprising claim 1 , in relation to the total amount thereof claim 1 , SiOin a content falling within a range from 58.0 to 59.3% by mass claim 1 , AlOin a content falling within a range from 18.2 to 19.0% by mass claim 1 , MgO in a content falling within a range from 9.0 to 11.0% by mass and CaO in a content falling within a range from 10.5 to 12.0% by mass ...

UNBONDED LOOSEFILL INSULATION

A loosefill insulation installation has an insulation space, and insulation material in the insulation space. The loosefill insulation material is made from fiberglass fibers. A thermal resistance (R) per inch of installed loosefill insulation material is between 3.1 and 3.9 R per inch. The average density of the installed loosefill insulation material is between 0.6 and 1.0 pounds per cubic foot. 1. A loosefill insulation installation comprising:a ceiling of a multi-story building;a floor of a next story of the multi-story building;an insulation space between said ceiling and said floor, wherein said insulation space has a depth between sixteen inches and twenty inches;loosefill insulation material made from fiberglass fibers that substantially fills said insulation space;wherein a thermal resistance (R) per inch of installed loosefill insulation material is between 3.1 and 3.9 R per inch; andwherein the average density of the installed loosefill insulation material is between 0.6 and 1.0 pounds per cubic foot.2. The loosefill insulation installation of wherein the fiberglass fibers comprise a combination of two or more of SiO2 claim 1 , Al2O3 claim 1 , CaO claim 1 , MgO claim 1 , B2O3 claim 1 , Na2O claim 1 , K2O claim 1 , and Fe2O3.3. A loosefill insulation installation comprising:roof supports;roof sheathing supported by the roof supports;insulation support material below the roof supports and roof sheathing;an insulation space between said roof sheathing and said insulation support material, wherein said insulation space has a depth between sixteen inches and twenty inches;loosefill insulation material made from fiberglass fibers that substantially fills said insulation space;wherein a thermal resistance (R) per inch of installed loosefill insulation material is between 3.1 and 3.9 R per inch; andwherein the average density of the installed loosefill insulation material is between 0.6 and 1.0 pounds per cubic foot.4. The loosefill insulation installation of ...

LOW DIELECTRIC GLASS COMPOSITION, FIBERS, AND ARTICLE

Glass compositions and glass fibers having low dielectric constants and low dissipation factors that may be suitable for use in electronic applications and articles are disclosed. The glass fibers and compositions of the present invention may include between 48.0 to 57.0 weight percent SiO; between 15.0 and 26.0 weight percent BO; between 12.0 and 18.0 weight percent AlO; between greater than 3.0 and 8.0 weight percent PO; between greater than 0.25 and 7.00 weight percent CaO; 5.0 or less weight percent MgO; and 6.0 or less weight percent TiO. Further, the glass composition has a glass viscosity of 1000 poise at a temperature greater than 1350 degrees Celsius and a liquidus temperature greater than 1100 degrees Celsius. 1. A glass composition comprising:{'sub': '2', 'between 48.0 to 57.0 weight percent SiO;'}{'sub': 2', '3, 'between 15.0 and 26.0 weight percent BO;'}{'sub': 2', '3, 'between 12.0 and 18.0 weight percent AlO;'}{'sub': 2', '5, 'between greater than 3.0 and 8.0 weight percent PO;'}between greater than 0.25 and 7.0 weight percent CaO;5.0 or less weight percent MgO; and,{'sub': '2', '6.0 or less weight percent TiO;'}wherein the composition has a glass viscosity of 1000 poise at a temperature greater than 1350° C., andwherein the composition has a liquidus temperature greater than 1100° C.2. The glass composition of claim 1 , wherein the glass composition further comprises:{'sub': '2', 'between 49.0 to 56.5 weight percent SiO;'}{'sub': 2', '3, 'between 15.5 to 25.5 weight percent BO;'}{'sub': 2', '3, 'between 12.5 and 17.50 weight percent AlO;'}{'sub': 2', '5, 'between greater than 3.0 and 7.5 weight percent PO;'}between greater than 0.25 and 6.5 weight percent CaO;4.5 or less weight percent MgO; and{'sub': '2', '5.5 or less weight percent TiO.'}3. The glass composition of claim 1 , wherein the glass composition further comprises:{'sub': '2', 'between 50.0 to 56.0 weight percent SiO;'}{'sub': 2', '3, 'between 16.0 to 25.0 weight percent BO;'}{'sub': 2', '3 ...

GLASS FIBER COMPOSITION, GLASS FIBER AND COMPOSITE MATERIAL THEREOF

A composition for producing a glass fiber, including the following components with corresponding percentage amounts by weight: 54.2-64% SiO, 11-18% AlO, 20-25.5% CaO, 0.3-3.9% MgO, 0.1-2% of NaO+KO, 0.1-1.5% TiO, and 0.1-1% total iron oxides including ferrous oxide (calculated as FeO). The weight percentage ratio C1=FeO/(iron oxides—FeO) is greater than or equal to 0.53. The total content of the above components in the composition is greater than 97%. The invention also provides a glass fiber produced using the composition and a composite material including the glass fiber. 2. The composition of claim 1 , wherein a weight percentage ratio C1=FeO/(iron oxides—FeO) is greater than or equal to 0.66.3. The composition of claim 1 , wherein a weight percentage ratio C2=(FeO+CaO—MgO)/SiOis greater than 0.33.4. The composition of claim 1 , being basically free of BO.5. The composition of claim 1 , wherein the combined weight percentage of SiO claim 1 , AlO claim 1 , CaO claim 1 , MgO claim 1 , NaO claim 1 , KO claim 1 , TiOand iron oxides is greater than 99%.6. The composition of claim 1 , comprising FeO with a weight percentage greater than or equal to 0.10%.8. The composition of claim 1 , comprising between 13.6 and 15 wt. % of AlO.11. The composition of claim 1 , further comprising less than 0.4 wt. % of LiO.12. The composition of claim 1 , further comprising between 0.15 and 0.65 wt. % of F.13. The composition of claim 1 , comprising between 59 and 64 wt. % of SiO.14. The composition of claim 1 , being basically free of PO.15. The composition of claim 1 , being basically free of LiO.16. The composition of claim 1 , wherein a weight percentage ratio NaO/KO is greater than 0.65.17. The composition of claim 1 , being produced using glass batch materials with a COD value of 500-1200 ppm.18. The composition of claim 1 , being produced using glass batch materials with a SO/COD ratio of 2-10.19. A glass fiber claim 1 , being produced using the composition of .20. A composite ...

HIGH-MODULUS GLASS FIBER COMPOSITION BASED ON BASALT

A high-modulus glass fiber composition based on basalt includes components with contents in mass percentage satisfying SiO: 53.0%-60.0%; AlO: 24.5%-28.0%; AlO: 8.0%-15.0%; FeO:1.5%-5.5%; TiO: 2.0%-4.0%; 0 Подробнее

Use of boron to reduce the thermal conductivity of unbonded loosefill insulation

A method for manufacturing unbonded loosefill insulation material configured for distribution in a blowing insulation machine is provided. The method includes the steps of establishing apparatus configured for making fibrous materials, the apparatus including structures configured to provide molten materials to fiberizing apparatus and collection apparatus configured to collect the formed fibrous materials, determining whether the formed fibrous material will be further processed as loosefill insulation material or other fibrous products, and formulating a composition of the molten material in response to the determination of whether the formed fibrous material will be further processed as loosefill insulation material or other fibrous products.

MINERAL WOOL

Mineral wool fibers having a mineral wool fiber composition are manufactured by introducing batch materials into a melter, melting the mineral batch materials in the melter to provide a melt and fiberizing the melt to form the mineral wool fibers. The batch materials comprise i) fibers having a first batch material composition which is different from the mineral wool fiber composition and consisting of scrap fibers which have broken at a bushing producing continuous fibers; and ii) one of more additional mineral batch materials.

GLASS WOOL, AND VACUUM HEAT INSULATION MATERIAL USING SAME

A glass wool which has physical properties required for a heat insulation material, can be produced industrially, can have reduced hygroscopicity, and has a novel compounding composition. The glass wool having the following glass composition: SiO: 60.0 to 65.0% by mass inclusive, AlO: 0.5 to 2.0% by mass inclusive, NaO and KO: 13.0 to 17.0% by mass inclusive, MgO and CaO: 8.0 to 12.0% by mass inclusive, BO: 5.0 to 12.0% by mass inclusive, and others: a remainder. 1. Glass wool having the following glass composition:{'sub': '2', 'SiO: 60.0 wt % to 65.0 wt %,'}{'sub': 2', '3, 'AlO: 0.5 wt % to 2.0 wt %,'}{'sub': 2', '2, 'NaO and KO: 13.0 wt % to 17.0 wt %,'}MgO and CaO: 8.0 wt % to 12.0 wt %,{'sub': 2', '3, 'BO: 5.0 wt % to 12.0 wt %, and'}other components: balance.2. The glass wool according to having the following glass composition:{'sub': 2', '2, 'NaO and KO: 14.0 wt % to 16.5 wt %,'}MgO and CaO: 9.0 wt % to 11.5 wt %, and{'sub': 2', '3, 'BO: 5.0 wt % to 8.0 wt %.'}3. The glass wool according to having the following glass composition:{'sub': '2', 'SiO: 62.0 wt % to 64.0 wt %'}{'sub': 2', '3, 'AlO: 1.2 wt % to 1.8 wt %,'}{'sub': '2', 'NaO: 14.0 wt % to 16.0 wt %,'}{'sub': '2', 'KO: 0.5 wt % to 2.0 wt %,'}MgO: 2.0 wt % to 4.0 wt %,CaO: 6.0 wt % to 8.0 wt %, and{'sub': 2', '3, 'BO: 6.0 wt % to 8.0 wt %.'}4. The glass wool according to claim 1 , wherein a mean filament diameter is 0.5 μm or more to 20 μm or less.5. The glass wool according to claim 1 , which does not contain a resin binder.6. The glass wool according to claim 1 , which is a sheet-like compact.7. The glass wool according to claim 1 , wherein equilibrium moisture content on day 7 in the case of having measured in compliance with the chamber method defined in JIS A 1475 is 1.0 wt % or less.8. A vacuum insulation material comprising the glass wool according to and an envelope that encloses the glass wool.9. A method for producing the glass wool according to claim 1 , comprising:obtaining a glass melt by ...

METHOD FOR PRODUCING MINERAL WOOL

A process for the manufacture of mineral wool can involve, first, a melting stage which makes it possible to obtain a molten glass. The chemical composition of the molten glass comprises the following constituents, in a content by weight, within the following limits: SiO, 39-55%; AlO, 16-27%; CaO, 3-35%; MgO, 0-5%; NaO+KO, 9-17%; FeO, 0-15%; and BO, 0-8%. The melting stage is carried out by electric melting in a furnace that has a tank made of refractory blocks and at least two electrodes immersed in the molten glass. At least one of the refractory blocks, in contact with the molten glass, is made of a material having at least 60% by weight of zirconium oxide and less than 5% by weight of chromium oxide. The molten glass is fiberized to obtain the mineral wool. 3. The process of claim 1 , wherein refractory blocks in contact with the molten glass comprise a material comprising at least 85% by weight of zirconium oxide and less than 1% by weight of chromium oxide.4. The process of claim 1 , wherein refractory blocks forming sidewalls of the tank in contact with the molten glass comprise a material comprising at least 60% by weight of zirconium oxide and less than 5% by weight of chromium oxide.5. The process of claim 1 , wherein at least a portion of refractory blocks form a bottom of the tank and comprise a refractory material comprising at least 20% of chromium oxide.6. The process of claim 1 , wherein the blocks of the material comprising at least 60% by weight of zirconium oxide and less than 5% by weight of chromium oxide of comprise sintered ceramic or refractory concrete or are electrocast blocks.7. The process of claim 1 , wherein the tank of the furnace comprises a casting opening in a bottom of the tank.8. The process of claim 7 , wherein at least a portion of refractory blocks forming a bottom of the tank comprise a material comprising at least 60% by weight of zirconium oxide and less than 5% by weight of chromium oxide claim 7 , and wherein other ...

BATTERY CONTAINING ACID RESISTANT NONWOVEN FIBER MAT WITH BIOSOLUBLE MICROFIBERS

Acid-resistant and biosoluble glass compositions and products made therefrom. The glass compositions exhibit acid resistance, durability in white water as may be used in a wet laid fabrication process, and good biosolubility. In another aspect, a glass fiber mat is made from such a glass composition, and may be used in the manufacture of lead-acid batteries, for example as a pasting material or battery separator. 1. A battery , comprising:at least two electrodes and an electrolyte; anda nonwoven glass fiber mat within the battery, the nonwoven glass fiber mat comprising glass microfibers having a diameter between 0.2 and 5.0 microns, the glass microfibers having a biosolubility index of not more than 2.20.2. The battery of claim 1 , wherein the glass microfibers have a biosolubility index of not more than 2.10.3. The battery of claim 1 , wherein the battery comprises a battery separator including the nonwoven glass fiber mat.4. The battery of claim 1 , wherein the battery comprises a pasting material including the nonwoven glass fiber mat.5. The battery of claim 1 , wherein the battery is a lead acid battery comprising an absorbent glass mat (AGM) claim 1 , the absorbent glass mat including the nonwoven glass fiber mat.6. The battery of claim 1 , wherein the glass microfibers have an acid durability index of at least 1.95 and a white water durability index of at least 1.85.7. The battery of claim 1 , wherein the glass microfibers are made of a glass composition consisting essentially of:{'sub': '2', '64.5-69.5 mol percent SiO;'}{'sub': 2', '3, '0.5-1.7 mol percent AlO;'}{'sub': 2', '3, '5.0-7.5 mol percent BO;'}{'sub': 2', '2, '14.0-17.0 mol percent NaO+KO;'}0.5-1.5 mol percent F; and7.5-12 mol percent CaO+MgO.8. The battery of claim 1 , wherein the glass microfibers are comprised in a first group of fibers claim 1 , and wherein the nonwoven glass mat further comprises a second group of fibers made from glass or other materials and having an average diameter of ...