УСТАНОВКА ДЛЯ НЕПРЕРЫВНОГО ИЗГОТОВЛЕНИЯ ВСПЕНИВАЕМОГО ПЛАСТИКОВОГО ГРАНУЛЯТА, А ТАКЖЕ СПОСОБ ЕГО ПОЛУЧЕНИЯ

Группа изобретений относится к установке (1) для непрерывного изготовления вспениваемого пластикового гранулята (G) и к способу получения гранулята (G) при использовании установки (1) по изобретению. Установка (1) включает источник расплава пластика (2) для получения расплава пластика (F), импрегнирующее устройство (3) для получения импрегнированного расплава пластика (FB) в результате импрегнирования расплава пластика (F) пенообразователем (B), подаваемым из источника пенообразователя, и гранулятор (4, 41, 42) для получения гранулята (G) из импрегнированного расплава пластика (FB) при использовании гранулятора (4, 41, 42). При этом гранулятор (4, 41, 42) через текучую среду соединен с импрегнирующим устройством (3). В установке предусматривается переключающее приспособление (5) таким образом, чтобы расплав пластика (F) мог быть подан в гранулятор (4, 41, 42) при обходе импрегнирующего устройства (3) по байпасу. Способ получения гранулята использует установку по изобретению. Технический ...

ШИПУЧИЕ КОМПОЗИЦИИ И СПОСОБЫ ИХ ПОЛУЧЕНИЯ И ПРИМЕНЕНИЯ

Группа изобретений относится к шипучим композициям и к способам их получения. Раскрыта гранулярная шипучая композиция, содержащая безводный кислотный компонент, содержащий комбинацию части кислоты, подвергнутой расплавлению, и части кислоты, не подвергнутой расплавлению, и безводный основный компонент, содержащий карбонатную функциональную группу, где основный компонент способен взаимодействовать с кислотным компонентом с образованием диоксида углерода; и где безводный кислотный компонент и безводный основный компонент находятся в массовом отношении в диапазоне от 1:9 до 9:1, и композиция не содержит гранулирующий агент, отличающийся от кислотного компонента, который взаимодействует с основанием, обеспечивая выделение пузырьков газа. Также раскрыты пористая шипучия композиция, шипучие пероральные твердые дозированные формы на основе указанных кислотного и основного агентов, а также двухшнековое обрабатывающее устройство для получения пористых шипучих гранул и способ получения пористых шипучих ...

СПОСОБ ПОЛУЧЕНИЯ ПЕН НА ОСНОВЕ ТЕРМОПЛАСТИЧНЫХ ПОЛИУРЕТАНОВ

Изобретение относится к способу получения разбухших гранул из расплава полимера, содержащего вспенивающий агент. Способ получения вспененных частиц термопластичного полиуретана включает следующие стадии. Стадия плавления термопластичного полиуретана, осуществляемая в первом экструдере E1. Стадия впрыскивания газообразного вспенивающего агента, осуществляемая во втором экструдере E2. Стадия гомогенного пропитывания вспенивающего агента в расплав термопластичного полиуретана, осуществляемая в третьем экструдере E3. А также стадия экструзии пропитанного расплава термопластичного полиуретана через профилирующую планку и грануляции расплава в подводном устройстве для грануляции в условиях температуры и давления с образованием вспененных частиц термопластичного полиуретана. Технический результат изобретения заключается в повышении контроля технологических параметров. 4 з.п. ф-лы, 6 табл.

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Изобретение относится к политриметилентерефталатной смоле, позволяющей стабильно получать в промышленном масштабе формованные изделия, обладающие высокой прочностью и превосходным цветом. Предложена политриметилентерефталатная смола, содержащая: 90-100 мольн.% повторяющихся звеньев триметилентерефталата и 0-10 мольн.%, по меньшей мере, одного мономерного звена, выбираемого из группы, включающей мономерные звенья, образованные сомономерами, отличными от мономеров, используемых для образования повторяющихся звеньев триметилентерефталата, и сополимеризуемых, по меньшей мере, с одним из мономеров, используемых для образования повторяющихся звеньев триметилентерефталата, причем указанная смола имеет следующие характеристики: (А) характеристическую вязкость [η] от 0,8 до 4,0 дл/г; (В) Mw/Mn в пределах от 2,0 до 2,7; (С) психометрический L-показатель светлоты (L-1) в пределах от 70 до 100 и психометрический b*-показатель насыщенности цвета (b*-1) в пределах от -5 до 25; и (D) психометрический ...

СПОСОБ ПОЛУЧЕНИЯ НАНОЧАСТИЦ ИЗ БИОПОЛИМЕРА

Изобретение относится к способу получения продукта в виде наночастиц из биополимера. В данном способе биополимерное исходное сырье и пластификатор подают в зону подачи экструдера, имеющего шнековую конфигурацию, такую что биополимерное исходное сырье, в частности крахмал, в экструдере подвергается переработке при использовании сдвиговых усилий, и сшивающий агент добавляют в экструдер на технологической схеме ниже по потоку зоны подачи. Способ характеризуется производительностью, большей или равной 1,0 метрической тонны продукта в час. Биополимерное исходное сырье и пластификатор в зону подачи предпочтительно добавляют раздельно. Экструдер в зоне подачи может иметь одновитковые элементы. Температуры в промежуточной секции экструдера составляет более 100°С. Конфигурация шнека может включать две и более секции уплотнения для водяного пара. Сдвиговые усилия в первой секции экструдера могут быть большими, чем сдвиговые усилия в соседней второй секции экструдера, расположенной на технологической ...

СПОСОБ И СИСТЕМА ДЛЯ ФОРМИРОВАНИЯ ЗАРОДЫШЕЙ КРИСТАЛЛИЗАЦИИ СЕРЫ В ДВИЖУЩЕЙСЯ ЖИДКОСТИ

Зародыши кристаллизации серы могут быть произведены путем распыления жидкой расплавленной серы из форсунки распыления серы в движущийся поток жидкости. Часть серы может пройти через жидкость, а часть серы может быть захвачена и транспортирована потоком жидкости, либо вся сера может быть захвачена потоком жидкости. Капельки серы, которые захватываются потоком жидкости, могут переноситься жидкостью к охлаждающему резервуару, который может быть спиральным сушильным резервуаром с наклонным дном и шнековым конвейером. В нижней поверхности корпуса шнекового конвейера спирального сушильного резервуара может быть сделано отверстие для слива жидкости из шнекового конвейера по мере того, как он перемещает зародыши кристаллизации серы из резервуара в барабан. В отверстии может быть расположено сито и сливной желоб, присоединенный к корпусу шнекового конвейера, для того, чтобы улавливать любую жидкость и твердые частицы, которые проходят через сито. Промывочная линия может помочь в перемещении твердых ...

СПОСОБ ПОЛУЧЕНИЯ ГРАНУЛ СЛОЖНОГО ПОЛИЭФИРА С НИЗКОЙ СТЕПЕНЬЮ ГИДРОЛИЗА ИЗ ВЫСОКОВЯЗКИХ РАСПЛАВОВ СЛОЖНОГО ПОЛИЭФИРА И УСТРОЙСТВО ДЛЯ ПОЛУЧЕНИЯ ГРАНУЛ СЛОЖНОГО ПОЛИЭФИРА

Изобретение относится к способу прямого получения гранулята полиэтилентерефталата с низкой степенью гидролиза из высоковязкого расплава полиэтилентерефталата и устройство для прямого получения гранулята полиэтилентерефталата с низкой степенью гидролиза. Способ прямого получения гранулята полиэтилентерефталата со степенью полимеризации СП от 132 до 165, при котором расплав после осуществления способа разрезания в горячем состоянии подвергают предварительной сушке и сушке/дегазации. Стадию разрезания в способе разрезания в горячем состоянии осуществляют при температурах воды от 70 до 95°С и при поддержании соотношения жидкости к твердому веществу - соотношения воды к гранулам/грануляту от 8:1 до 12:1, причем жидкость полностью удерживают до поступления в предварительную сушилку, а циркулирующую воду в предварительной сушилке отделяют в течение менее 10 с. Кроме того, изобретение относится к грануляту полиэтилентерефталата, полученному указанным способом, который имеет степень поликонденсации ...

СПОСОБ И УСТРОЙСТВО ДЛЯ ИЗГОТОВЛЕНИЯ КОМПОНЕНТА ИЗ КОМПОЗИЦИОННОГО МАТЕРИАЛА

Группа изобретений относится к способу аддитивного изготовления компонента из композиционного материала, содержащего матрицу и множество армирующих элементов, в частности углеродных нанотрубок, и устройству для его осуществления. Способ включает формирование последовательности слоев композиционного материала, причем каждый из слоев формируют поверх предшествующего слоя. Затем осуществляют приложение электромагнитного поля к композиционному материалу перед формированием поверх него следующего слоя. При этом электромагнитное поле вызывает поворот в матрице по меньшей мере некоторых армирующих элементов. Устройство включает платформу формирования и систему для формирования последовательности слоев композиционного материала на платформе формирования. Также устройство содержит электрод для приложения электромагнитного поля к композиционному материалу перед формированием поверх него следующего слоя. Достигаемый при этом технический результат заключается в обеспечении выравнивания армирующих элементов ...

ИЗБИРАТЕЛЬНОЕ СПЕКАНИЕ СТРУКТУРНО-МОДИФИЦИРОВАННЫХ ПОЛИМЕРОВ

Изобретение относится к способу производства трехмерного изделия из порошка путем избирательного спекания посредством электромагнитного облучения. Порошок содержит полимер или сополимер, который имеет, по меньшей мере, одну из следующих структурных характеристик: (i) по меньшей мере, одну разветвленную группу в основной цени полимера или сополимера, при условии, что в случае использования простых полиарилэфиркетонов (РАЕК) разветвленная группа представляет собой ароматическое структурное звено в основной цепи полимера или сополимера; (ii) модификацию, по меньшей мере, одной концевой группы основной цепи полимера или сополимера; (iii) по меньшей мере, одну объемную группу в основной цепи полимера или сополимера, при условии, что в случае использования простых полиарилэфиркетонов (PAЕK) объемную группу не выбирают из группы. состоящей из фенилена, бифенилена, нафталина и CH- или изопропилиден-связанных ароматических соединений; (iv) но меньшей мере, одну ароматическую группу, нелинейно связывающую ...

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Настоящее изобретение относится к области обработки термопластичных полимеров, в частности к способу приготовления уплотненного материала, пригодного для применения в термопластичных полимерах без стадии компаундирования, а также к уплотненному материалу, полученному этим способом, и к его применению в термопластичных полимерах. Способ получения уплотненного материала с обработанной поверхностью включает стадии a) обеспечения по меньшей мере одним первичным порошковым материалом; b) обеспечения по меньшей мере одним расплавленным полимером для обработки поверхности; c) одновременной или последовательной подачи по меньшей мере одного первичного порошкового материала и по меньшей мере одного расплавленного полимера для обработки поверхности в высокоскоростной блок смешения с цилиндрической камерой обработки; d) смешения по меньшей мере одного первичного порошкового материала и по меньшей мере одного расплавленного полимера для обработки поверхности в высокоскоростном смесителе; e) передачи ...

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Изобретение относится к способам непрерывного изготовления вспениваемых гранул на основе термопластичных полимеров. Введение полимерной композиции, содержащей второй расплавленный полимерный материал и вспенивающую систему, в поток расплавленного винилароматического полимера, находящегося при температуре в диапазоне от критической температуры вспенивающей системы минус 25 до критической температуры вспенивающей системы плюс 25. Полученную композицию гранулируют в камере резки устройства для горячего гранулирования термопластичных полимеров путем пропускания через экструзионную головку, охлаждаемую струей жидкости из сопел, которые расположены позади комплекта ножей. В камеру гранулирования подают поток газа, предотвращающий ее затопление. Полученные гранулы характеризуются коэффициентом формы в диапазоне от 0,6 до 0,99 и пригодны для получения вспененных изделий плотностью, меньшей или равной 50 г/л, и уровнем содержания замкнутых ячеек, равным по меньшей мере 60%, согласно документу ASTM ...

УСТАНОВКА И СПОСОБ ФОРМИРОВАНИЯ РАЗЛИЧНЫХ ПЛАСТМАССОВЫХ ИЗДЕЛИЙ ИЗ ОДНОГО РАСПЛАВА

... 1. У д ф р п и и о р с у о э и у э в и пу о э вэ в с в р п п с о рс в д п д п кл д в р в эс о п д п п м м ч р в у э в ип э г п д ф п п и и н о р ау э в и вэ д ф и в с в с р с д с о р д в ии;у д п д п д п д дя и в э в и ив э г п д ф в п и и р д в и ив к п э в и с н б 75% п о э2. У п п 1, в к с о в с в п д ч р в к и н э и3. У п п 1 и 2, в к п э в и с н б 50% п о э4. У п п 1 и 2, в к п э к м п м э в и н ч о э5. У п п 1 и 2, в к у о э в н д р6. У п п 1 и 2, в к у э в и н в н д р7. У п п 1 и 2, в к п и в э г в в в г д и т и о в п8. У п п 1 и 2, в к п и в э г в в в г д и л г д и п и к г д и лп9. У п п 1 и 2, в к п и в э г в в в г д и п э с р10. У п п 1 и 2, в к у д п д в в в с д и ж11. У п п 1 и 2, в к у д п д в в в п н д р12. У п п 1 и 2, в у э т и вэ т и в с в с р с д д и с о р д т иу д п д п д п д д и в э т и ит э г п д ф т п и и р д т и13. С и р п и з о п р вр п п в п э с о п рп п м м ч п р в в э п в н ч п р и н ф п п ис д с р в в э с о в р иф в п и и в р п п в э с н б 75% п п э14. С п п ...

СПОСОБ ПОЛУЧЕНИЯ ГРАНУЛ СЛОЖНОГО ПОЛИЭФИРА С НИЗКОЙ СТЕПЕНЬЮ ГИДРОЛИЗА ИЗ ВЫСОКОВЯЗКИХ РАСПЛАВОВ СЛОЖНОГО ПОЛИЭФИРА И УСТРОЙСТВО ДЛЯ ПОЛУЧЕНИЯ ГРАНУЛ СЛОЖНОГО ПОЛИЭФИРА

... 1. Способ прямого получения гранулята сложного полиэфира с низкой степенью гидролиза из высоковязкого расплава сложного полиэфира со степенью полимеризации (СП) от 132 до 165, при котором расплав после осуществления способа разрезания в горячем состоянии подвергают предварительной сушке и сушке/дегазации, отличающийся тем, что ! стадию разрезания в способе разрезания в горячем состоянии осуществляют при температурах воды от 70 до 95°С и при поддержании соотношения жидкости к твердому веществу (соотношения воды к гранулам/грануляту) от 8:1 до 12:1, причем жидкость полностью удерживают до поступления в предварительную сушилку, а циркулирующую воду в предварительной сушилке отделяют в течение менее 10 с. ! 2. Способ по п.1, отличающийся тем, что 99% циркулирующей воды отделяют в предварительной сушилке, при этом в качестве предварительной сушилки предпочтительно применяют перемешивающую центрифугу, корпус которой выполнен в виде расширяющегося от основания вверх конуса или цилиндрических ступеней ...

КОМПОЗИЦИИ ПОГЛОТИТЕЛЯ КИСЛОРОДА

... 1. Композиция суперконцентрата на основе переходного металла, содержащая:(a) полимерный носитель и(b) композицию переходного металла, диспергированную в твердом полимерном носителе;где количество указанного переходного металла в композиции на основе переходного металла составляет более чем примерно 30000 ч/млн (по металлу) относительно массы композиции суперконцентрата на основе переходного металла.2. Композиция по п. 1, где полимерный носитель содержит сложнополиэфирный полимер.3. Композиция по п. 2, где сложнополиэфирный полимер представляет собой полиалкилтерефталат или его сополимер.4. Композиция по п. 2, где сложнополиэфирный полимер представляет собой полиэтилентерефталат или его сополимер.5. Композиция по п. 2, где сложнополиэфирный полимер выбран из полиэтилентерефталата, поли(диметилциклогексантерефталата), политриметилентерефталата, полинафталата или их сополимера.6. Композиция по п. 1, где количество полимерного носителя, присутствующего в композиции суперконцентрата на основе ...

ФОРМОВАННЫЕ ИЗДЕЛИЯ ИЗ ЧАСТИЦ ПЕНОПЛАСТА, ВЫПОЛНЕННЫЕ ИЗ СПОСОБНЫХ ВСПЕНИВАТЬСЯ, СОДЕРЖАЩИХ НАПОЛНИТЕЛЬ ПОЛИМЕРНЫХ ГРАНУЛЯТОВ

... 1. Способные вспениваться грануляты термопластичных полимеров, отличающиеся тем, что они содержат от 5 до 50 вес.% наполнителя, выбранного из группы, включающей тальк, мел, каолин, гидроксид алюминия, нитрид алюминия, силикат алюминия, карбонат кальция, сульфат кальция, кремниевую кислоту, кварцевую муку, аэросил, глину или стеклянные шарики. 2. Способные вспениваться грануляты термопластичных полимеров по п.1, отличающиеся тем, что они дополнительно содержат a) от 2 до 40 вес.% вспучивающегося графита со средним размером частиц в интервале от 10 до 1000 мкм, b) от 0 до 20 вес.% красного фосфора или органического или неорганического фосфата, фосфита или фосфоната, c) от 0 до 10 вес.% сажи или графита. 3. Способные вспениваться грануляты термопластичных полимеров по п.1 или 2, отличающиеся тем, что они содержат от 3 до 7 вес.% органического вспенивателя. 4. Способные вспениваться грануляты термопластичных полимеров по п.1 или 2, отличающиеся тем, что в качестве термопластичного полимера ...

СПОСОБ И УСТРОЙСТВО ДЛЯ ПРОИЗВОДСТВА ПОЛИМЕРНОГО ГРАНУЛЯТА

... 1. Способ производства полимерного гранулята, включающий следующие шаги: ! - приготовление полимерного расплава (2), ! - первое охлаждение полимерного расплава (2) с помощью первого статического охладителя расплава (9), ! - добавление по меньшей мере одной добавки (25) в охлажденный полимерный расплав (2), ! - подмешивание по меньшей мере одной добавки (25) в полимерный расплав (2) с помощью шнекового экструдера (13), ! - добавление по меньшей мере одного вспенивателя (31) в содержащий добавки полимерный расплав (2), ! - подмешивание по меньшей мере одного вспенивателя (31) в полимерный расплав (2) с помощью шнекового экструдера (13), ! - второе охлаждение содержащего добавки и вспениватель полимерного расплава (2) с помощью второго статического охладителя расплава (37), и ! - гранулирование охлажденного полимерного расплава (2), содержащего добавки и вспениватели. ! 2. Способ по п.1, отличающийся тем, что находящийся в шнековом экструдере (13) полимерный расплав (2) охлаждают. ! 3. Способ ...

УЛУЧШЕННЫЕ ДИСПЕРСИИ ПОЛИАМИДОВ С ВЫСОКИМ СОДЕРЖАНИЕМ КАРБОКСИЛЬНЫХ ГРУПП В СЛОЖНЫХ ПОЛИЭФИРАХ С ИСПОЛЬЗОВАНИЕМ АГЕНТА, СНИЖАЮЩЕГО МЕЖФАЗНОЕ НАТЯЖЕНИЕ

... 1. Вытянутая стенка контейнера, включающая в себя, по меньшей мере, один вытянутый слой, причем указанный вытянутый слой содержит: ! полиамидный полимер, способный к кристаллизации полиэфир и снижающий межфазное натяжение агент, ! где ! полиамидный полимер содержит продукт реакции, выбранный из группы, включающей выбранный из группы, состоящей из внутримолекулярной конденсации аминокапроновой кислоты и продукта реакции А-D, где А представляет собой остаток дикарбоновой кислоты, представляющей собой адипиновую кислоту, изофталевую кислоту, терефталевую кислоту, 1,4-циклогександикарбоновую кислоту или нафталиндикарбоновую кислоту, и где D представляет собой остаток диамина, представляющего собой м-ксилилендиамин, п-ксилилендиамин, гексаметилендиамин, этилендиамин или 1,4-циклогександиметиламин, где отношение концевых аминогрупп к концевым карбоксильным группам полиамидного полимера составляет менее чем 1,0, когда относительная вязкость полиамидного полимера составляет менее чем 2,0, и менее ...

СПОСОБ ПОЛУЧЕНИЯ ГРАНУЛ ЖЕВАТЕЛЬНОЙ РЕЗИНКИ, СИСТЕМА ЭКСТРУДИРОВАНИЯ И ГРАНУЛИРОВАНИЯ ЖЕВАТЕЛЬНОЙ КОМПОЗИЦИИ И ПРОДУКТ - ЖЕВАТЕЛЬНАЯ РЕЗИНКА

... 1. Способ получения гранул жевательной резинки, включающий по меньшей мере стадии: a) подачи жевательной композиции в экструдер; b) приложения давления к жевательной композиции в экструдере; c) экструдирования жевательной композиции через экструзионную головку; d) разрезания экструдированной жевательной композиции в камере, заполненной жидкостью; отличающийся тем, что по меньшей мере один ароматизатор, включающий чувствительные ароматические компоненты, добавляют в жевательную композицию, находящуюся в экструдере, причем температуру и давление ароматизированной таким образом жевательной композиции регулируют таким образом, что ароматизированная жевательная композиция имеет температуру ниже 70°С, если давление ароматизированной жевательной композиции составляет 1-5 гПа, тогда как давление ароматизированной жевательной композиции составляет по меньшей мере 5 гПа, если температура ароматизированной жевательной композиции превышает 70°С. 2. Способ по п.1, в котором ароматизированная жевательная ...

СТОЙКИЕ К РАЗРУШЕНИЮ ФОРМЫ ПРИМЕНЕНИЯ С ЗАМЕДЛЕННЫМ ВЫСВОБОЖДЕНИЕМ ФИЗИОЛОГИЧЕСКИ АКТИВНОГО ВЕЩЕСТВА

... 1. Форма применения, которая содержит физиологически активное вещество (А), необязательно одно или несколько физиологически совместимых вспомогательных веществ (Б), синтетический или природный полимер (В) и необязательно природный, полусинтетический или синтетический воск (Г) и обладает сопротивлением разрушению по меньшей мере 400 Н и которая в физиологических условиях по истечении 5 ч высвобождает максимум 99% физиологически активного вещества (А) и не содержит ни трамадола гидрохлорид, ни оксикодона гидрохлорид. ! 2. Форма применения по п.1, отличающаяся тем, что она не содержит обладающее психотропным действием вещество. ! 3. Форма применения по п.1, отличающаяся тем, что она обладает сопротивлением разрушению по меньшей мере 500 Н. ! 4. Форма применения по п.1, отличающаяся тем, что она представлена в виде таблетки. ! 5. Форма применения по п.1, отличающаяся тем, что она представлена в дисперсном виде с сопротивлением отдельных частиц разрушению по меньшей мере 400 Н. ! 6. Форма применения ...

СПОСОБ ПРОИЗВОДСТВА ПОЛИАМИДА

... 1. Способ получения полиамида из по меньшей мере одной двухосновной кислоты, из по меньшей мере одного диамина и из по меньшей мере одного лактама, включающий следующие этапы:a) концентрирования с помощью испарения воды водного раствора соли двухосновной кислоты и диамина, полученного путем смешивания по меньшей мере одной двухосновной кислоты и по меньшей мере одного диамина,b) полимеризации под давлением концентрированного водного раствора,c) понижения давления в полимеризационной среде в целях удаления остаточной воды с помощью испарения,d) необязательного выдерживания полимера при температуре, при атмосферном давлении или при пониженном давлении в целях достижения желательной степени полимеризации,e) необязательного формования полученного полимера,отличающийся тем, что лактам вводят в раствор или полимеризационную среду в конце этапа a) или после этапа a);и тем, что доля по весу единиц мономера, полученных из лактама конечного полимера, по отношению к весу конечного полимера составляет ...

ИСКУССТВЕННАЯ ДРЕВЕСНАЯ МУКА, СПОСОБ И УСТРОЙСТВО ДЛЯ ЕЕ ПОЛУЧЕНИЯ: ПЛИТА, ПОЛУЧЕННАЯ НА ОСНОВЕ ИСКУССТВЕННОЙ ДРЕВЕСНОЙ МУКИ, И СПОСОБ И УСТРОЙСТВО ЭКСТРУЗИОННОГО ФОРМОВАНИЯ ТАКОЙ ПЛИТЫ

Искусственная древесная мука, в которой термопластичный полимерный материал в количестве 25 - 80 мас.% смешан с измельченным целлюлозным материалом в количестве 20 - 70 мас.% с влагосодержанием в пределах до 15 мас.% и средним диаметром частиц 20 меш (0,84 мм) или меньше, причем смешанный материал подвергают пластикации с переводом в гелеобразное состояние, после чего материал охлаждают и измельчают с последующим регулированием размеров частиц 10 мм или меньше. Далее такую искусственную древесную муку в качестве измельченного целлюлозного материала смешивают в количестве 20 - 75 мас.% с полимерным материалом, смешанный материал пластицируют с нагреванием и выдавливают шнеком или шнеками через экструзионную головку 78 экструдера. Когда экструдируемый материал 79 проходит по поверхности внутренней стенки экструзионной головки 78, которая плакирована фторполимерным листовым материалом 24, измельченный целлюлозный материал, входящий в состав экструдируемого материала, экструдируется равномерно ...

КОМПАУНДИРОВАНИЕ ПОЛИМЕРА С ПРЕДВАРИТЕЛЬНО НАГРЕТОЙ МАТОЧНОЙ СМЕСЬЮ ПЕЛЛЕТ

СПОСОБ ПОЛУЧЕНИЯ ПОЛИОЛЕФИНОВОЙ КОМПОЗИЦИИ

Композиция на основе сополимера этилена и винилового спирта для формования из расплава, гранула и многослойная структура

СПОСОБ И СИСТЕМА ДЛЯ ПОЛУЧЕНИЯ ЗЕРЕН И ГРАНУЛ СЕРЫ

... 1. Система для преобразования расплавленной серы в зерна серы, используемые для получения гранул серы, включающая:охлаждающую емкость, содержащую жидкость;первый распылитель, расположенный с указанной охлаждающей емкостью;расплавленную серу, распыленную указанным первым распылителем в указанную жидкость; изерна серы, образованные взаимодействием серы с указанной жидкостью.2. Система по п.1, в которой охлаждающая емкость представляет собой емкость со спиральным обезвоживателем, имеющую наклонное дно и винтовой конвейер.3. Система по п.2, в которой зерна серы транспортируются из охлаждающей емкости указанным винтовым конвейером.4. Система по п.3, дополнительно включающаягранулирующий барабан для укрупнения зерен серы до гранул серы, расположенный вблизи охлаждающей емкости, причем зерна серы транспортируются указанным винтовым конвейером в указанный гранулирующий барабан.5. Система по п.4, дополнительно включающаялинию отходов гранулирующего барабана, обеспечивающую сообщение посредством ...

СПОСОБ И СИСТЕМА ДЛЯ ФОРМИРОВАНИЯ ЗАРОДЫШЕЙ КРИСТАЛЛИЗАЦИИ СЕРЫ В ДВИЖУЩЕЙСЯ ЖИДКОСТИ

... 1. Способ для преобразования расплавленной серы в зародыши кристаллизации серы, используемые для увеличения в гранулы серы, включающий в себя стадии:распыления расплавленной серы в движущийся поток жидкости;транспортировку расплавленной серы в движущемся потоке жидкости; иформирование зародышей кристаллизации серы путем взаимодействия расплавленной серы с жидкостью.2. Способ по п. 1, в котором расплавленная сера распыляется в том же самом направлении, что и движущийся поток жидкости.3. Способ по п. 1, в котором распылительная форсунка устанавливается выше движущегося потока жидкости.4. Способ по п. 1, в котором жидкость является водой.5. Способ по п. 1, в котором движущаяся жидкость не находится в емкости во время взаимодействия с расплавленной серой.6. Способ по п. 1, дополнительно включающий в себя стадию:выливания движущегося потока жидкости из желоба перед стадией распыления.7. Способ по п. 1, дополнительно включающий в себя стадию:перемещения зародышей кристаллизации к охлаждающему ...

Granulat aus rein natürlichen Bestandteilen; Granulat als Ausgangsmaterial zur Herstellung kompostierbarer Produkte sowie Produkte hergestellt aus Granulat

Granulat bestehend aus natürlichen bevorzugt rein pflanzlichen Bestandteilen umfassend Stärke und Dickungs-und Geliermittel aufweisend eine Feststoffzusammensetzung bestehend ausPflanzliche Stärke40-60%Dickungs- und/oder Geliermittel40-60%Optionale Zusätze0-20%,wobei das Granulat eine Restfeuchte von 10-30%, bevorzugt 15-22% aufweist.

Zusammensetzung, mehrschichtiger Behälter und Verpackung

Quetschwalzengranulator mit Quetschwalzenpaar und Verwendung desselben

Quetschwalzengranulator der ein Quetschwalzenpaar (60) aus einer verzahnten Andruckwalze (2) und einer verzahnten Quetschwalze (3) aufweist, wobei die Verzahnung (4) der Andruckwalze (2) und der Quetschwalze (3) Zahnflanken (5, 6) aufweist, die zwischen einem Zahnfußbereich (7) und einem Zahnkopfbereich (8, 8') angeordnet sind, und wobei der Zahnfußbereich (7) einen Außendurchmesser (d) aufweist, der geringer ist als der Außendurchmesser (D) des Zahnkopfbereichs, und wobei wenigstens eine der Walzen (2, 3) des Quetschwalzenpaares (60) in dem Zahnkopfbereich (8, 8') drei Quetschzonen (9, 10, 11) mit einer Mittenquetschzone (10) aufweist, die unterschiedliche Abstände zwischen den Zahnkopfbereichen (8, 8') mit einem minimalen Abstand (a) im Bereich der Mittenquetschzone (10), und wobei die Kontur der Zahnflanken (5, 6) und des Zahnfußbereichs (7) der Walzen (2, 3) des Quetschwalzenpaares (60) einen maximalen Querschnitt von zu formenden Granulatkissen (12) definiert.

Methode zur Herstellung von Kaugummigranulat und komprimierten Kaugummiprodukten, sowie ein Kaugummigranuliersystem

Expandierbare Styrolpolymergranulate

Expandierbare Styrolpolymergranulate, erhältlich durch Schmelzeextrusion mit nahezu kugelförmiger Geometrie und einer längsten Ausdehnung (a) und zwei dazu senkrecht stehenden, kürzeren Ausdehnungen (b) und (c), dadurch gekennzeichnet, dass die kürzeren Ausdehnungen (b) und (c) im Bereich von 0,3 bis 1,8 mm liegen und das Verhältnis gamma der kürzesten Ausdehnung (c) zur längsten Ausdehnung (a) im Bereich von 0,8 bis 1 liegt.

Verfahren für die Herstellung von Granulen, die auf expandierbaren thermoplastischen Polymeren basieren

Verfahren zur kontinuierlichen Herstellung von expandierbaren Granulen, basierend auf thermoplastischen Polymeren, durch eine Granulierungsdüse, das die nachstehenden Schritte einschließt:i) Bringen eines ersten Stroms von geschmolzenem Vinyl- aromatischem Polymer auf eine Bezugstemperatur, wobei die Bezugstemperatur im Bereich der kritischen Temperatur des expandierenden Systems minus 25°C liegt und der kritischen Temperatur des expandierenden Systems plus 25°C liegt;(ii) Bringen von mindestens einem zweiten Strom von geschmolzenem Vinyl-aromatischem Polymer auf eine Bezugstemperatur, wobei die Bezugstemperatur im Bereich von der kritischen Temperatur des expandierenden Systems minus 25°C zu der kritischen Temperatur des expandierenden Systems plus 25°C liegt;iii) Einarbeiten eines expandierenden Systems in den sich ergebenden polymeren Strom in dem geschmolzenen Zustand aus Schritt (i) oder (ii) bei einem Bezugsdruck, wobei der Bezugsdruck höher als der kritische Druck des expandierenden ...

Verfahren zur Herstellung geschäumter Polymerformkörper und geschäumter Polymerformkörper

Verfahren zur Herstellung geschäumter mikroporöser Polymerformkörper durch Aufschmelzen eines thermoplastischen Polymers in einer ersten Zone einer Extrusionseinrichtung, Einmischen eines leichtflüchtigen Treibmittels, Förderung der treibmittelhaltigen Polymerschmelze in eine zweite Zone, in der ein Lösen des Treibmittels bis zur Sättigung der Polymerschmelze bei der Schäumungstemperatur erfolgt, Ausformung und Schäumen der beladenen Polymerschmelze zu einer Schaumstruktur, wobei in der zweiten Zone ein Druck oberhalb von 90 bar, eine Treibmittelkonzentration oberhalb der kritischen Mindestkonzentration für eine Vollverschäumung und die Schäumungstemperatur so oberhalb der Erstarrungstemperatur der mit Treibmittel gesättigten Polymerschmelze eingestellt werden, dass der erhaltene Polymerformkörper eine Porosität im Bereich zwischen 40 und 85 Vol.-% und eine gleichmäßig über den Querschnitt verteilte offenzellige Porenstruktur aufweist. Geschäumte mikroporöse Polymerformkörper in partikelförmiger ...

Verfahren zur Herstellung von Ethylen-Vinylalkohol-Copolymerharz, Verfahren zur Herstellung von Pellets und Harzpellets

Verfahren zur Herstellung von Granulaten von thermoplastischen Siloxanpolymeren

Beschrieben ist ein Verfahren zur Herstellung von Granulaten von thermoplastischen Siloxanpolymeren, insbesondere Organopolysiloxan/Polyharnstoff/Polyurethan-Blockcopolymeren, durch DOLLAR A (d) Transportieren des thermoplastischen Siloxanpolymeren, insbesondere Organopolysiloxan/Polyharnstoff/Polyurethan-Blockcopolymeren, in das gegebenenfalls zuvor zusätzliche Additive eingemischt wurden, aus dem Reaktor in ein Kühlmedium mit einer Temperatur von -20 DEG C bis 60 DEG C und DOLLAR A (e) direkte Granulierung und Pelletierung des Polymers in dem Kühlmedium, gleichzeitig während oder unmittelbar nachdem das Polymer in das Kühlmedium eintritt.

Blasgeformter Behälter und Herstellungsvefahren

Process for the continuous production of fibre-containing shaped articles of polyamide

A process for the production of fibre-containing polyamides comprises continuously impregnating a fibrous skein with an anhydrous melt of a lactam containing at least 5 ring members, said melt containing an alkaline polymerization catalyst, heating the resultant lactam-containing fibre skein to polymerization temperature and drawing off continuously the fibre skein containing the polymerizate. Polymerization accelerators, e.g.isocyanates, carbodiimides, cyanamides, benzoyl chloride or terephthaloyl chloride, may also be included in the lactam melt. Specified lactams are pyrrolidone, aminovaleric lactam, aminocapronic lactam, amino-oenanthic lactam and aminocapryllic lactam. Specified catalysts are the alkali metals, alkali and alkaline earth metal hydrides, the sodium salts of aromatic hydroxy compounds and sodium bicarbonate. Specified fibrous fillers are glass and asbestos fibres. The impregnated fibre skein may be granulated and moulded. In the example, a glass fibre is impregnated by ...

Floor covering having a multi-coloured pattern and a process for its production

A method of manufacturing foamed polystyrene balls

A method of continuously manufacturing foamed polystyrene balls includes heating two flows of molten vinyl aromatic polymer 15, 16 to within 25 degrees of an expanding agentâ s critical temperature. The expanding agent is then added to one at a supercritical pressure and the flows are mixed. This mixture can then be extruded through holes in a cylindrical die 37 which are provided with knives to separate the extrusion into granules. A nozzle 13 directs a liquid jet at the die and an inlet 14 feeding a gas to the cutting chamber prevents it flooding. This process ideally produces almost spherical granules having a density less than 50g/l with most of the cavities being unlinked.

Moulding compositions for porous irrigation pipe

A mixture of crumb rubber, binder, such as polyethylene, and slip contact agent, such as talc, and lubricant, such as a metal stearate, is formed in a blender (10), is shaped into pellets (32) by extruding a strand of the mixture (26) into water (28) and breaking the strand into pellets. The pellets (32) are adjusted to a preselected water content in drier (46) before storage in closed bags (50), stored and reinforced in a container (54). The controlled water content pellets (32) are formed into porous pipe (88) by extrusion in pipe extruder (62) having the feeding, transition and metering zones separately heated to temperatures from 320 DEG F. to 400 DEG F. (T1, T2, T3). The die has a separate jacket (90) receiving heat exchange fluid for heating the die (68) to a temperature from 290 DEG F. to 380 DEG F. to form a porous pipe (88) having more uniform porosity. Porosity is controlled by selecting water content of the pellets and controlling die temperature.

Production of particles

Comminutable polyesters

Olefin resin pellet of two-layer structure for insect control resin composition

PROCESSING BIOMASS

Olefin resin pellet of two-layer structure for insect control resin composition

Olefin Resin Pellet of two-layer structure for insect control resin composition.

PROCESSING BIOMASS

METHOD FOR PREPARING A POWDER OF BROWN MICROALGAE BY BLENDING AND METHOD FOR PRODUCING RIGID OBJECTS FROM SAID POWDER

Processing biomass.

Processing biomass.

Olefin resin pellet of two-layer structure for insect control resin composition

PROCESSING BIOMASS

Processing biomass.

PROCESSING BIOMASS

PROCEDURE FOR THE PRODUCTION GESCH UMTER POLYMERFORMK RPER AND GESCH UMTER POLYMERFORMK RPER

POLYVINYLACETAL HALTIGES GRANULATES, PROCEDURE FOR ITS PRODUCTION AS WELL AS ITS USE

SMALL PARTICLES FROM POLYESTER RESIN, EXHIBITING FROM THE SURFACE TO THE CORE VISCOSITY GRADIENT

POLYTRIMETHYLENTEREPHTHALATHARZ

PROCEDURE AND DEVICE FOR MANUFACTURING MULTI-LAYER GRANULATES

ZEOLITHI MATERIAL OF PENTASIL STRUKTURTYP, ITS PRODUCTION AND ITS USE

FOAM MATERIALS ON BASIS OF THERMOPLASTIC PU

PROCEDURE FOR THE PRODUCTION OF A EVOHZUSAMMENSETZUNG

PROCEDURE FOR THE PRODUCTION MAD BODY FROM IMPACTTOUGH PLASTIC

MULTILEVEL PELLETS AND PROCEDURES FOR THE PRODUCTION OF THESE MULTILEVEL PELLETS

PROCEDURE FOR THE PRODUCTION OF FILLED GRANULATES FROM POLYETHYLENES HIGH ONES AND/OR ULTRAHIGH MOLECULAR WEIGHT

PROCEDURE FOR THE PRODUCTION OF AN INTERLACED EXTRUDED POLYMER PRODUCT

PROCEDURE FOR THE PRODUCTION OF PARTIKELFOERMIGEN, EXPAND-CASH PROPYLENE POLYMERS

TRAINING OF A COAT WITH SHINING METALLIC ONE APPEARANCE ON A SURFACE

PROCEDURE FOR THE PRODUCTION OF EXPAND-CASH POLYOLEFIN PARTICLES OF MEANS COLD IMPREGNATION

PROCEDURE FOR THE PRODUCTION OF POLYVINYL ALCOHOL OF ABSTENTIONS OF THERMOPLASTIC COMPOSITION WITHOUT DEGRADATION AND NOT MELTED MATERIAL

VERFAHREN ZUR HERSTELLUNG EINES KÜNSTLICHEN HOLZMEHLS, VORRICHTUNG ZUR DURCHFÜHRUNG DIESES VERFAHRENS, VERFAHREN ZUM EXTRUSIONSFORMEN EINES KUNSTHOLZBRETTES, VORRICHTUNG ZUM EXTRUSIONSFORMENEINES SOLCHEN KUNSTHOLZBRETTES, KÜNSTLICHES HOLZMEHL SOWIE KUNSTHOLZBRETT

COMPOSITIONS, PERMEABLE IRRIGATION PIPE AND PROCEDURE.

PROCEDURE FOR THE PRODUCTION OF AQUEOUS COMPOSITIONS FROM ETHYL VINYLALKOHOL COPOLYMERS

MATERIAL AND PROCEDURE FOR THE PRODUCTION OF PLASTIC PARTS

BIODEGRADABLE COMPOSITIONS ON THE BASIS OF SORGHUM FLOUR, FROM IT MANUFACTURED MOLDED ARTICLES AND PROCEDURES FOR THE PRODUCTION OF THESE MOLDED ARTICLES

Effervescent composition and method of making it

I: \Kzh\Interwoven\NRPortbl\DCC\KZI03844_ .docx-03 05/2018 The present disclosure concerns effervescent compositions and methods of making and using the same. In some embodiments, the disclosed effervescent compositions are formed from an input blend comprising an acid and a base by granulating the input blend in a twin screw processor. The granules formed from the input blend can be formed by an in situ granulating agent, which can be a portion of the acid that melts during granulation. In some embodiments, the effervescent compositions can be made using a twin-screw processor comprising an intake zone for receiving an input blend comprising an acid and a base; a granulation initiation zone for melting only a portion of the acid to serve as an in situ granulating agent; a granulation completion zone for granulating the input blend; and an outlet for discharging the granules.

A substantially completely biodegradable high starch polymer

Process for making a pellet

Apparatus and method for controlled pelletization processing

An apparatus and process maintain control of the temperature of low-melting compounds, high melt flow polymers, and thermally sensitive materials for the pelletization of such materials. The addition of a cooling extruder, and a second melt cooler if desired, in advance of the die plate provides for regulation of the thermal, shear, and rheological characteristics of narrow melting-range materials and polymeric mixtures, formulations, dispersions or solutions. The apparatus and process can then be highly regulated to produce consistent, uniform pellets of low moisture content for these otherwise difficult materials to pelletize.

Elastomer composite with silica-containing filler and methods to produce same

An elastomer composite with silica-containing filler is described, along with methods to make the same. The advantages achieved with the elastomer composite and methods are further described.

Rubberized asphalt pellets

Preparation of a powdery pharmaceutical composition by means of cryo-milling

The invention relates to a method for the preparation of a powdery pharmaceutical composition comprising a pharmaceutical excipient and a pharmaceutical component,wherein the pharmaceutical excipient is a polyalkylene glycol, the method comprising the step of grinding a mixture of the pharmaceutical excipient and the pharmaceutical component at a temperature below ambient temperature.

Polymer composition by continuous filler slurry extrusion

An inventive process for the production of a polymer composition is provided, said process comprising the incorporation of a filler into a polymer material, wherein said polymer material during incorporation of the filler is in at least partially molten state and wherein said filler is incorporated as a slurry.

Multi-layer particles for rotational molding

COMPARTMENTALIZED PELLET FOR IMPROVED CONTAMINANT REMOVAL

This invention is directed to an improved method for cleaning contaminated polymer when that polymer is to be blended with clean material. The method involves combining the contaminated material and the clean material in a compartmentalized pellet wherein the contaminated material is placed in the outermost compartment, the clean material is placed in an inner compartment and then subjecting the pellet to an extraction process.

GRANULAR POLYMER ADDITIVES AND THEIR PREPARATION

A compacted particulate polymer additive composition in a dry granular form formed from a substantially uniform mixture of the following components: (a) at least one particulate sterically-hindered phenolic compound, and (b) one or more particulate polymer additives other than a sterically-hindered phenolic compound; wherein the particles of said composition are held together in compacted dry granular form exclusively or substantially exclusively by contact with dried surfaces of in situ desolvated particles from particles of one or more at least partially solvated components of (a), and optionally by contact with dried surfaces of in situ desolvated particles from particles of one or more at least partially solvated components of (b). Compositions of this type except that there is no component (b) are also described.

PROCESS FOR THE PREPARATION OF GRANULES BASED ON EXPANDABLE THERMOPLASTIC POLYMERS AND RELATIVE PRODUCT

Process for the continuous production of granules based on thermoplastic polymers comprising at least one expandable agent and, optionally, other polymers or additives, among which inorganic pigments insoluble in the Polymeric matrix, wherein a first main stream (21) is prepared, in the molten State, and a second stream (22) in the molten State, which englobes the additives (16) and which is added to the first stream. The mixture is extruded through a die (37) which is cooled by means of water jets from nozzles positioned behind the cutting blades.

CARBON MICROPARTICLE AND PROCESS FOR PRODUCTION THEREOF

A process for producing carbon microparticles, characterized in that synthetic resin microparticles, metal-containing synthetic resin microparticles or child-particle-containing synthetic resin microparticles are subjected to carbonization baking, wherein the synthetic resin microparticles, the metal-containing synthetic resin microparticles or the child-particle-containing synthetic resin microparticles are produced by a process comprising mixing a polymer (A) such as polyacrylonitrile copolymer microparticles composed of a copolymer of an acrylonitrile monomer and a hydrophilic vinyl monomer with a polymer (B) that is different from the polymer (A) in an organic solvent to produce an emulsion and bringing the emulsion into contact with a poor solvent for the polymer (A), thereby causing the polymer (A) to precipitate; and the carbon microparticles.

CARPET RECLAMATION SYSTEM

A method and apparatus for reclaiming face fibers and polypropylene and/or polyvinyl chloride backing material from rolls and pieces of post-consumer carpet. The system includes a separator for separating the face fibers from the backing and for separating latex and calcium carbonate powder from the polyvinyl backing. An extruder is provided for extruding the face fibers separated from the backing into extrusions, and a pelletizer pelletizes the extrusions. A roller opener opens the polypropylene backing into fibrous portions and also cleans such fibrous portions. Alternately, a ganulator can be provided that chops and grinds the polypropylene or PVC backing into fragments after the separations of the face fibers from the backing. A heat source heats the PVC fragments, and also the polypropylene fragments (thereby separating the latex therefrom), and ultimately melts such fragments. Reclaimed fibers can be pelletized, made into extrusions, used in non-woven products and in other manners ...

POLYETHYLENE COMPOSITION FOR THE PRODUCTION OF PEROXIDE CROSSLINKED POLYETHYLENE

The invention relates to a polyethylene composition for the production of peroxide crosslinked polyethylene and a method for the production thereof. The invention further relates to the use of such a polymer composition and to a peroxide crosslinked polyethylene pipe made from the polyethylene composition.

A SUBSTANTIALLY COMPLETELY BIODEGRADABLE HIGH STARCH POLYMER

This invention is a substantially completely biodegradable high starch polymer using completely biodegradable high polymer polyvinyl alcohol [PVOH] that is made to be compatible with starch. The two ingredients are mixed with the optional addition of elasticity enhancer and supplement agent to better the stability and durability of the products. During the mixing and heating process the starch molecular structures are randomized. The randomized starch molecules, the PVOH, the elasticity enhancer and the supplement then under go the process of co-polymerization. The mixture is then extruded, at a temperature that is above the crystallization temperature of the starch molecules, to form the first stage product, the pellets. The pellets can then be extruded into films using a traditional plastic film extruder.

METHOD FOR PRODUCING PARTICLES

A method for producing particles, the method including: applying vibration to a liquid including a physiologically active substance and included in a liquid-column resonance liquid-chamber to form a standing wave based on liquid column resonance, to thereby discharge the liquid from at least one discharging port, which is formed in an amplitude direction of the standing wave, to at least one region corresponding to at least one anti-node of the standing wave; and drying the liquid discharged, to thereby form particles.

METHOD FOR PRODUCING SULFONE POLYMER MICRO-PARTICLES FOR SLS 3D PRINTING

... -1-METHOD FOR PRODUCING SULFONE POLYMER MICRO-PARTICLES FOR SLS 3D PRINTING [0001] The present disclosure relates generally to materials for three-dimensional printing and, more particularly, to a method for producing sulfone polymer micro-particles for selective laser sintering (SLS) three-dimensional (3D) printing. BACKGROUND [0002] Selective laser sintering (SLS) is a powder bed-based additive manufacturing (AM) technique to produce complex three-dimensional parts. When a laser beam scans the powder, the powder melts due to the rising temperature and layer-by-layer the final part approaches full density and should result in properties of the bulk material (i.e., polymer). In theory, every thermoplastic polymer that can be transformed into a powder form can be processed via this technique. However, the reality is every new material behaves differently during melting, coalescence, and consolidation, and requires optimization of the SLS processing parameters. The bed temperature and laser ...

METHOD FOR PRODUCING PARTICLES

A method for producing particles, the method including: applying vibration to a liquid including a physiologically active substance and included in a liquid-column resonance liquid-chamber to form a standing wave based on liquid column resonance, to thereby discharge the liquid from at least one discharging port, which is formed in an amplitude direction of the standing wave, to at least one region corresponding to at least one anti-node of the standing wave; and drying the liquid discharged, to thereby form particles.

DEVICE AND METHOD FOR PRODUCING PLASTIC GRANULATE

The invention relates to a device (1) and a method for producing dyed (G1) and undyed (G2) plastic granulate, comprising a multi-shaft worm machine (2) and an underwater granulating device (3). The underwater granulating device is arranged downstream of a granulate changing unit (20) in a conveyor direction (19), said granulate changing unit separating the dyed plastic granulate from the undyed plastic granulate. The dyed plastic granulate is separated from the granulating water (W1) by means of a first separating device (24), whereas the undyed plastic granulate is separated from the granulating water (W2) by means of a second separating device (29). The separating devices are arranged parallel to each other. The device allows a simple, flexible, and economical selective production of the dyed and undyed plastic granulate.

A METHOD OF PRODUCING AN INFILL MATERIAL FOR SYNTHETIC-GRASS STRUCTURES, CORRESPONDING MATERIAL, AND SYNTHETIC GRASS STRUCTURE

A method for producing a particulate infill material for synthetic-grass structures envisages providing (18) a mass of thermoplastic material (14) with a filler consisting of coconut-based material (10) and subjecting (24) said mass of thermoplastic material (14) with a filler consisting of coconut--based material (10) to granulation so as to obtain the aforesaid particulate infill material. Preferentially, the thermoplastic material (14) is in particulate form, and the coconut-based material (10) is in particulate form (fibrous, ground and/or shredded). The mixture obtained by mixing the thermoplastic material (14) and the coconut-based material (14) is heated in order to bring about softening of the thermoplastic material (14) with the corresponding formation of a matrix of thermoplastic material that incorporates the coconut-based material (4) as filler.

Low cost process for manufacture of form-stable phase change material

The present invention generally relates to a method for manufacturing phase change material (PCM) pellets. The method includes providing a melt composition including paraffin and a polymer. The paraffin has a melt point between about 10° C. and about 50° C., and more preferably between about 18° C. and about 28° C. In one embodiment, the melt composition includes various additives, such as a flame retardant. The method further includes forming the melt composition into PCM pellets. The method further may include the step of cooling the melt to increase the melt viscosity before pelletizing.

Spherical Rubber Chemicals and the Method for Preparing the Same

The present invention provides spherical rubber chemicals and the method for preparing the same. The spherical rubber chemicals of the present invention include spherical antioxidants, spherical vulcanization agents, spherical processing aids, spherical reinforcing agents, or spherical adhesive agents. With the spherical rubber chemicals of the present invention, the shortcomings of powdery or semi-spherical rubber chemicals are overcome, including eliminating the dust pollution during granulation procedure and avoiding the raw material loss and the environmental pollution, while solving the quality problem of lower melting point of product caused by the presence of fine powder crystal. Furthermore, the resultant rubber chemicals has an improved smoothness of surface, which is helpful to improve the flowing and mixing behaviors of the rubber chemicals in mixing or open milling process with rubbers.

Method for Manufacturing and Handling Elastomer Thermoplastic Gels

Method of manufacturing granulates or continuous strips intended for feeding an extrusion machine, formed of a gel comprising at least, as majority elastomer, a styrene thermoplastic elastomer and more than 200 phr of an extender oil, each element of the granulate having a given surface area. The granulate element is sized so that the compactness, of a granulate element, is less than a value decreasing from 1500 m −1 to 375 m −1 and deposited on the surface of said granulates is an anti-tack agent having a value increasing from 2 cm 3 to 8 cm 3 per m 2 of granulate surface area, when the mean size of the particles of said anti-tack agent increases from a value of 1 μm to 100 μm.

Extrusion Process For Proppant Production

An extrusion method and apparatus are described for producing ceramics, glass, glass-ceramics, or composites suitable for use as proppants. The method includes forming one or more green body materials, extruding the green body materials to form a green body extrudate, separating and shaping the green body extrudate into individual green bodies, and sintering the green bodies to form proppants. The apparatus includes a means for forming an intimate mixture of green body materials, means to produce a green body extrudate, means for separating and shaping the green body extrudate into individual green bodies, and means to sinter the green green bodies to form proppants.

Apparatus for producing thermoplastic resin pellets

The present invention provides an apparatus for producing thermoplastic resin pellets of uniform shape. The apparatus includes a batch-type polymerization vessel whose inner pressure can be controlled; a pelletizer for cutting a strand-form thermoplastic resin discharged from the polymerization vessel, thereby forming pellets; a pipe for transferring the pellets to a storage container by pneumatic transportation or suction transportation; a pressure differential measuring unit for determining variation in a pressure difference between the inlet and the outlet of the transfer pipe; and a pressure controlling unit for controlling the inner pressure of the batch-type polymerization vessel on the basis of the variation in the measured pressure difference; wherein the inner pressure of the batch-type polymerization vessel is controlled in relation to a pressure loss in the transfer pipe.

Plant for the continuous manufacture of an expandable plastic granulate as well as method for producing it

A plant ( 1 ) for the continuous manufacture of an expandable plastic granulate (G) is disclosed that includes a plastic melt source ( 2 ) for providing a plastic melt (F), an impregnating device ( 3 ) for providing an impregnated plastic melt (FB) by impregnating the plastic melt (F) with an expanding agent (B) provided by an expanding agent source, and a granulator ( 4, 41, 42 ) for producing the granulate (G) from the impregnated plastic melt (FB) with the granulator ( 4, 41, 42 ), with the granulator ( 4, 41, 42 ) being fluidly connected to the impregnating device ( 3 ). According to the invention, a switching means ( 5 ) is provided in such a way, that the plastic melt (F) can be fed to the granulator ( 4, 41, 42 ) under bypassing the impregnating device ( 3 ). In addition, the invention relates to a method for producing a granulate (G) using a plant ( 1 ) in accordance with the invention.

NANO-POROUS NANO-COMPOSITE, METHOD OF PREPARING THE SAME, AND SOLID OXIDE FUEL CELL INCLUDING THE NANO-POROUS NANO-COMPOSITE

A nano-composite, including: a plurality of secondary particles, each secondary particle including a mixture of nano-size primary particles, wherein the mixture of nano-size primary particles includes particles including a nickel oxide or a copper oxide, and particles including zirconia doped with a trivalent metal element or ceria doped with a trivalent metal element, and wherein the nano-size primary particles define a plurality of nano-pores. 1. A method of preparing a nano-composite , the method comprising:dissolving a nickel precursor or a copper precursor; a trivalent metal element precursor; and a zirconium precursor or a cerium precursor in a solvent to obtain a mixed solution;spraying the mixed solution using a spray;supplying the sprayed mixed solution along with a carrier gas into a furnace to form a sprayed product; andsintering the sprayed product.2. The method of claim 1 , wherein the copper precursor comprises at least one selected from the group consisting of copper chloride claim 1 , copper nitrate claim 1 , copper acetylacetonate hydrate claim 1 , copper acetate claim 1 , copper sulfide and a mixture comprising at least one of the foregoing claim 1 ,the nickel precursor comprises at least one selected from the group consisting of nickel chloride, nickel nitrate, nickel acetylacetonate hydrate, nickel acetate, nickel sulfide and a mixture comprising at least one of the foregoing,the copper precursor comprises at least one selected from the group consisting of zirconium chloride, zirconium nitrate, zirconium acetylacetonate hydrate, zirconium acetate, zirconium sulfide, zirconium ethoxide, zirconium acetate, zirconium monostearate and a mixture comprising at least one of the foregoing,the cerium precursor comprises at least one selected from the group consisting of cerium chloride, cerium nitrate, cerium acetylacetonate hydrate, cerium sulfide, cerium ethoxide, cerium acetate, cerium monostearate and a mixture comprising at least one of the foregoing ...

SULFUR GRANULATOR SYSTEM AND METHOD

Sulfur (or sulphur) spray nozzles disposed with a tank spray liquid molten sulfur into the cooling liquid in the tank. Solid sulfur seeds are formed in the cooling liquid and settle in the tank. The tank may be a spiral dewaterer tank that has a screw conveyor at the bottom of the tank that moves the seeds to a granulating drum for enlargement into sulfur granules. The tank may also be used to capture and remove sulfur dust from a slurry of sulfur dust and water recycled from the granulating drum. The sulfur dust in the cooling tank may be captured by contact with molten sulfur droplets streaming down the cooling liquid column such that the dust particles become incorporated into the droplet, thereby being converted to seed. The granulating drum may be equipped with two or more sets of segmented lifting flights. The sets of flights may not be in alignment. The flights may be spaced apart from the inside surface of the drum with segmented rib members. The rib members may allow for the movement of sulfur seeds and granules between the flights and the inside surface of the drum as the drum rotates. 1. A system for converting molten sulfur into sulfur seeds used for making sulfur granules , comprising:a tank storing a fluid;a first nozzle disposed with said cooling tank;the molten sulfur sprayed by said first nozzle into said liquid; andsulfur seeds formed by the interaction of the sulfur with the liquid.2. The system of claim 1 , wherein the tank is a spiral dewaterer tank having an angled bottom surface and a screw conveyor.3. The system of claim 2 , wherein the sulfur seeds are transported out of the tank with said screw conveyor.4. The system of claim 3 , further comprising:a granulating drum for enlarging sulfur seeds into granules coupled to the tank, wherein the sulfur seeds are transported with said screw conveyor to said drum.5. The system of claim 4 , further comprising:a drum effluent line in fluid communication between said granulating drum and said tank ...

Supercritical Fluid Treatment of High Molecular Weight Biopolymers

Micro- and nano-sized particles, agglomerates and fibers are generated from high molecular weight water-soluble biopolymers applying supercritical fluid technology. A method of producing micro- or nanoparticles from an aqueous solution of a high molecular weight biopolymer includes the step of spraying the aqueous solution together with a mixture of a compressible gas and a water-soluble co-solvent/antisolvent into a pressurized chamber. The method may be adapted to impregnate the micro- or nanoparticles with a bioactive material. A method for microencapsulating a bioactive material with a biopolymer is also provided. 1. A method of producing micro- or nanoparticles from an aqueous solution of a high molecular weight biopolymer , comprising the step of a) spraying the aqueous solution together with a mixture of a compressible gas and a water-soluble cosolvent/antisolvent into a pressurized chamber.2. The method of further comprising the step of flushing the chamber after finishing the precipitation of particles with sufficient amounts of a compressible gas to remove any residual cosolvent/antisolvent.3. The method of wherein the compressible gas comprises carbon dioxide claim 1 , carbon dioxide and ethanol claim 1 , nitrogen claim 1 , or mixtures thereof.4. The method of wherein the water-soluble cosolvent/antisolvent comprises ethanol claim 3 , acetone or isopropanol claim 3 , or mixtures thereof.5. The method of wherein the aqueous solution and the compressible gas/cosolvent/antisolvent are sprayed into the pressurized chamber through a coaxial nozzle.6. The method of wherein the high molecular weight biopolymer comprises a polysaccharide.7. The method of wherein the polysaccharide has a molecular weight of 70 kDa or more.8. The method of wherein the polysaccharide comprises gum arabic or β-glucan.9. The method of wherein a water-soluble organic solvent is mixed with the aqueous solution prior to step (a).10. The method of comprising the further step of flushing ...

Method for the Production of Polyester Granulates From Highly Viscous Polyester Melts and Also Device for the Production of the Polyester Granulates

The invention relates to a method and device for the direct production of polyester granulate from a highly viscous polyester melt with a polymerisation degree of 132 to 165, as well as the granulates formed thereform. In the method, the highly viscous polyester melt is subjected to a pre-drying and drying/degassing after a hot cutting method. Hot cutting is implemented at water temperatures of 70° C. to 95° C. and with a liquid to solid ratio of 8 to 12:1. 1. Method for the direct production of polyester granulate from a highly viscous polyester melt (hiV) with a polymerisation degree (PG) of 132 to 165 , in which the hiV melt is subjected to a pre-drying and drying/degassing after a hot cutting method , characterised in that the cutting phase in the hot cutting method is effected at water temperatures of 70 to 95° C. and a liquid to solid ratio of 8 to 12:1 is maintained.2. Method according to claim 1 , characterised in that a dwell time in the water of the hot cutting until entry into the pre-drying of <1 second is maintained.3. Method according to claim 1 , characterised in that the liquor is maintained in its entirety until entry into the pre-drying.4. Method according to claim 1 , characterised in that claim 1 , during the pre-drying in the upper fifth of the pre-dryer claim 1 , 99% of the circulating water is separated within <10 seconds.5. Method according to claim 1 , characterised in that claim 1 , during the pre-drying in the pre-dryer claim 1 , a crystallisation degree of at least 5% is achieved so that the agglomeration of granulates is prevented.6. Method according to claim 1 , characterised in that an outlet moisture of the granulate from the pre-drying of <200 ppm is achieved.7. Method according to claim 1 , characterised in that the dew point during pre-drying in the pre-dryer is controlled to 8 to 12° C. by means of a quantity of purging air from a subsequently connected collecting container.8. Method according to claim 7 , characterised in that a ...

Biodegradable plastic material based on cellulose acetate and related end-products

A process for the production of a plastic material based on cellulose acetate includes a plasticization step of cellulose acetate by mixing the cellulose acetate flake or powder with a mixture of plasticizers comprising at least two plasticizers chosen among esters of glycerine, esters of citric acid and esters of tartaric acid, while maintaining the temperature in the plasticization step below 50° C.

Method for producing expandable granulates containing polylactic acid

The invention relates to a process for producing expandable pelletized material which comprises polylactic acid which comprises the following steps: a) melting and incorporation by mixing of the following components: i) from 50 to 99.9% by weight, based on the total weight of components i to iii), of polylactic acid, ii) from 0 to 49.9% by weight, based on the total weight of components i to iii), of one or more further polymers, iii) from 0.1 to 2% by weight, based on the total weight of components i to iii), of a diepoxide or polyepoxide, and iv) from 0 to 10% by weight of one or more additives, b) incorporation by mixing of v) from 3 to 7% by weight, based on the total weight of components i to iv), of an organic blowing agent into the polymer melt by means of a static or dynamic mixer at a temperature of at least 140° C., c) discharging through a die plate with holes, the diameter of which at the exit from the die is at most 1.5 mm, and d) pelletizing the melt comprising blowing agent directly downstream of the die plate, and under water, at a pressure in the range from 1 to 20 bar. The invention further relates to expandable pelletized material which comprises polylactic acid and which is obtainable by said process, and also to specific expandable pelletized material which comprises polylactic acid and which has a proportion of from 3 to 7% by weight of an organic blowing agent, preferably n-pentane and particularly preferably isopentane. The invention further relates to a preferred process for producing expandable pelletized material which comprises blowing agent and which comprises polylactic acid, and which has low bulk density.

Elastomer composite with silica-containing filler and methods to produce same

An elastomer composite with silica-containing filler is described, along with methods to make the same. The advantages achieved with the elastomer composite and methods are further described.

SYSTEMS AND METHODS FOR HIGH-THROUGHPUT MICROFLUIDIC BEAD PRODUCTION

A system for producing microbeads includes a microfluidic device defining a supply channel and a shearing channel, a microbead precursor material disposed in the supply channel, a carrier fluid disposed in the shearing channel, and a pressure distribution system fluidly connected to each of the supply channel and the shearing channel to control at least relative pressures of the microbead precursor material and the carrier fluid. The supply channel includes a check valve adapted to be subjected to a bias pressure that is sufficient to close the check valve to flow of microbead precursor material when a supply pressure of the microbead precursor material is below a threshold pressure and is open to flow of the microbead precursor material when the supply pressure of the microbead precursor material is greater than the threshold pressure. An end of the supply channel opens into the shearing channel such that the microbead precursor material is sheared into droplets by the carrier fluid flowing through the shearing channel. A pressure of the carrier fluid is less than the bias pressure. The microbead precursor material and the carrier fluid are substantially immiscible. 1. A system for producing microbeads , comprising:a microfluidic device defining a supply channel and a shearing channel;a microbead precursor material disposed in said supply channel;a carrier fluid disposed in said shearing channel; anda pressure distribution system fluidly connected to each of said supply channel and said shearing channel to control at least relative pressures of said microbead precursor material and said carrier fluid,wherein said supply channel comprises a check valve adapted to be subjected to a bias pressure that is sufficient to close said check valve to flow of microbead precursor material when a supply pressure of said microbead precursor material is below a threshold pressure and is open to flow of said microbead precursor material when said supply pressure of said microbead ...

ATAZANAVIR SULFATE FORMULATIONS WITH IMPROVED pH EFFECT

Disclosed are compressed tablets containing atazanavir sulfate and an acidifying agent, optionally with another active agent, e.g., anti-HIV agents, and optionally with precipitation retardant agents. Also disclosed are processes for making the tablets, and methods of treating HIV. 1. A compressed tablet comprising atazanavir sulfate and an acidifying agent.2. A compressed tablet according to wherein the acidifying agent is selected from the group consisting of citric acid claim 1 , tartaric acid claim 1 , fumaric acid claim 1 , ascorbic acid and mixtures thereof.3. A compressed tablet according to further comprising a precipitation retardant agent.4. A compressed tablet according to wherein the precipitation retardant agent is selected from the group consisting of polyvinylpyrrolidone claim 1 , polyvinylpyrrolidone-vinyl acetate claim 1 , hydroxypropyl cellulose claim 1 , hydroxypropyl methylcellulose claim 1 , and hydroxypropylmethylcellulose acetate succinate and mixtures thereof.5. A compressed tablet according to comprising at least one other agent having anti-HIV activity or the ability to enhance the pharmacokinetics of the atazanavir.6. A compressed tablet according to wherein the other agent is ritonavir.7. A compressed tablet according to wherein the other agent is cobicistat.8. A method of treating an HIV infection in a patient claim 1 , comprising administering to the patient a therapeutically effective amount of a compressed tablet according to .9. A process for preparing a composition of atazanavir sulfate comprising:(a) blending atazanavir sulfate and an acidifying agent to form a first blend; and(b) granulating the first blend to form a granulated blend.10. A process according to further comprising:(c) blending the granulated blend with an extragranular ingredient to form a second blend; and(d) compressing the second blend to form a tablet.11. A process for preparing a composition of atazanavir sulfate comprising:(a) combining atazanavir sulfate and ...

PROCESS FOR MANUFACTURING PELLETS AND PELLETS OBTAINED BY THE PROCESS

The invention relates to a process for manufacturing pellets from wet biomass residues having a high water content of between 25% and 80% comprising the steps of a) charging the homogenate of wet biomass residues into a receptacle, b) drying the wet biomass residues in a dryer and c) converting the dry biomass residues in a pelleting press comprising a steel die pierced with holes and a steel rotor comprising notched wheels made of steel, in order to obtain the pellets, said process comprising/being characterized in that a step of drying the wet biomass residues is carried out at the same time as the pellet-conversion step at a temperature between 65° C. and 95° C. in a pelleting press coupled, in a closed circuit, to a dryer with air/air exchange comprising a pelleting press/dryer communication by-pass. The invention also relates to the pellets of plant or wood origin obtained by the process described and having a compaction of greater than 750 kg/m.

Metered pump system for hydrocapsule encapsulation

A metered pump system for hydrocapsule encapsulation is disclosed. In at least one embodiment, a system for hydrocapsule encapsulation includes a nozzle assembly and metered pump for encapsulating discrete droplets of liquid by generating a continuous coating of a polymerizable liquid which is substantially immiscible with the core liquid. The metered pump system is configured to control a stroke length and a pulsation speed to attain constant shear with each pump of water, and a volume of water in each stroke and a speed of the stroke is controlled. In at least one embodiment, the nozzle includes a material feed port, a polymer feed port, a water feed port, and an encapsulated material exit port. In at least one embodiment, the metered pump is configured for use in a hydrocapsule encapsulation system having a pressure control system, a water control system, sparging column, and ultraviolet exposure chamber system.

Polymer pelletization via melt fracture

Polymer pellets are formed using air to influence the separation of polymer from a polymer melt. In accordance with one or more embodiments, a polymer material is extruded through a nozzle to form a polymer melt extending from the nozzle. A non-uniform thickness is generated in the polymer melt using a gas or gasses to apply a drag force to the polymer melt. This drag force reduces a thickness of a portion of the polymer melt adjacent the nozzle, and the polymer melt is fractured into discrete droplets at the reduced thickness. The discrete droplets are then solidified to form pellets.

METHOD AND DEVICE FOR PRODUCING AND TREATING PELLETS

The invention relates to a method and a device for producing and treating plastic pellets. According to said method, a melt of the plastic material is granulated to give pellets, the pellets are cooled in a cooling fluid, the pellets are separated from the cooling fluid and the pellets are crystallized. The device according to the invention is characterized by comprising a control unit which monitors the crystallization step and controls the method in such a manner that, in case of a disturbance of crystallization, the pellets are supplied to an intermediate storage alter separation of the pellets from the cooling fluid and, as soon as the disturbance is removed, the pellets temporarily stored in the intermediate storage are supplied to crystallization and are crystallized. 114-. (canceled)16. The method according to claim 15 , wherein the plastic material is a claim 15 , thermoplastic condensation polymer.17. The method according to claim 15 , wherein the control unit decreases a temperature of the cooling fluid from a temperature Tto a temperature T Подробнее

Dosage Form

The present invention provides a dosage form, particularly a tamper resistant dosage form, comprising; non-stretched melt extruded particulates comprising a drug selected from an opioid agonist, a tranquilizer, a CNS depressant, a CNS stimulant or a sedative hypnotic; and a matrix; wherein said melt extruded particulates are present as a discontinuous phase in said matrix. 1. A dosage form comprising:non-stretched, melt-extruded particulates comprising a drug selected from an opioid agonist, a tranquilizer, a CNS depressant, a CNS stimulant or a sedative hypnotic; and a matrix;wherein said melt-extruded particulates are present as a discontinuous phase in said matrix.2. The dosage form as claimed in claim 1 , wherein said drug is an opioid agonist.3. The dosage form as claimed in claim 2 , wherein said opioid agonist is selected from the group consisting of oxycodone claim 2 , oxymorphone claim 2 , hydrocodone claim 2 , hydromorphone claim 2 , morphine claim 2 , codeine claim 2 , buprenorphine claim 2 , fentanyl claim 2 , tramadol claim 2 , and tapentadol claim 2 , or a pharmaceutically acceptable salt thereof.4. The dosage form as claimed in claim 1 , which comprises 15-80% wt of said melt-extruded particulates claim 1 , based on the total weight of the dosage form.5. The dosage form as claimed in claim 1 , which comprises 20-85% wt of said matrix claim 1 , based on the total weight of the dosage form.6. The dosage form as claimed in claim 1 , wherein said matrix comprises a continuous phase comprising a gel-forming agent.7. The dosage form as claimed in in the form of a tablet.810-. (canceled)11. The dosage form as claimed in claim 1 , wherein said melt-extruded particulates are microparticulates.12. The dosage form as claimed in claim 1 , wherein said melt-extruded particulates have a diameter and/or length of less than about 900 μm.13. (canceled)14. The dosage form as claimed in claim 1 , wherein said melt-extruded particulates comprise 3 to 50% wt of drug claim ...

Method for producing polymer fine particle

A fine polymer particle production method includes producing an emulsion in a liquid prepared by dissolving and mixing a polymer A and a polymer B in organic solvents in which a solution phase composed primarily of the polymer A and a solution phase composed primarily of the polymer B are formed as separate phases, and bringing it into contact with a poor solvent for the polymer A to precipitate the polymer A. This method serves for easy synthesis of fine polymer particles with a narrow particle size distribution and the method can be effectively applied to production of highly heat-resistant polymers that have been difficult to produce with the conventional methods.

Apparatus and method for controlled pelletization processing

An apparatus and process to maintain control of the temperature of low-melting compounds, high melt flow polymers, and thermally sensitive materials for the pelletization of such materials. The addition of a cooling extruder, and a second melt cooler if desired, in advance of the die plate provides for regulation of the thermal, shear, and rheological characteristics of narrow melting-range materials and polymeric mixtures, formulations, dispersions or solutions. The apparatus and process can then be highly regulated to produce consistent, uniform pellets of low moisture content for these otherwise difficult materials to pelletize.

GAS DISPERSION MANUFACTURE OF NANOPARTICULATES, AND NANOPARTICULATE-CONTAINING PRODUCTS AND PROCESSING THEREOF

In one aspect, the present invention relates to a method of making multi-phase particles that include nanoparticulates and matrix, which maintains the nanoparticulates in a dispersed state. A flowing gas dispersion is generated that includes droplets of a precursor medium dispersed in a gas phase. The precursor medium contains liquid vehicle and at least a first precursor to a first material and a second precursor to a second material. The multi-phase particles are formed from the gas dispersion by removing at least a portion of the liquid vehicle from the droplets of precursor medium. The nanoparticulates in the multi-phase particles include the first material and the matrix in the multi-phase particles includes the second material. 111-. (canceled)12. A gas dispersion method for making nanoparticulates , the method comprising:generating a flowing gas dispersion, as generated the gas dispersion comprising droplets of a precursor medium dispersed in a gas phase, with the precursor medium comprising liquid vehicle and at least two precursors, a first said precursor being a precursor to a first material and a second said precursor being a precursor to a second material, the second material being a surface-modifying material;in the gas dispersion, forming particles dispersed in the gas phase, the particles each comprising the second material and nanoparticulates that include the first material;the forming particles comprising removing at least a portion of the liquid vehicle from the droplets;wherein, the particles are decomposable in a liquid dispersion medium to release the nanoparticulates from the particles for dispersion of the nanoparticulates in the liquid dispersion medium; andwherein, when the particles are decomposed in and the nanoparticulates are dispersed in the liquid dispersion medium, at least a portion of the second material modifies a surface of the dispersed nanoparticulates.13. The method of claim 12 , wherein the second material comprises a ...

COMPOSITE MATERIAL

In a method of manufacturing a composite material, a catalyst material is patterned within a deposition area to form an array of catalyst regions. A first array of bundles of filaments is grown on the catalyst regions. Adjacent filaments in the bundle are spaced by an inter-filament gap. Adjacent bundles are spaced in the array by an inter-bundle gap substantially free of filaments. The free tips of the filaments are drawn together within each bundle, so that the inter-filament gaps become smaller at the tip of each bundle than at the base of each bundle where the filaments remain attached to the catalyst region. These steps are repeated to provide a second array of bundles of filaments. The second array are positioned or grown at least partly in the inter-bundle gaps of the first array. The inter-filament gaps and inter-bundle gaps of both arrays are impregnated with a matrix material. 1. A method of manufacturing a composite material , the method comprising:a. depositing a catalyst material over a deposition area, the catalyst material being patterned within the deposition area to form an array of catalyst regions which are spaced apart by gaps substantially free of catalyst material, wherein a proportion of the deposition area occupied by the catalyst regions is greater than a proportion of the deposition area which is substantially free of catalyst material;b. growing a first array of bundles of filaments on the catalyst regions, wherein growth of the filaments is catalysed by the catalyst material, each filament has a base attached to the catalyst region and a free tip, each filament is spaced apart from adjacent filaments in the bundle by an inter-filament gap, each bundle is spaced apart from adjacent bundles in the array by an inter-bundle gap substantially free of filaments, and each bundle has a base attached to the catalyst region and a free tip;c. drawing the free tips of the filaments together within each bundle, so that the inter-filament gaps become ...

Foams based on thermoplastic polyurethanes

Molded parts for automobile interiors can be made from expanded thermoplastic polyurethane beads. Processes can be used to produce the molded parts from thermoplastic polyurethane.

Weighing and Mixing System

The invention is a weigh ng and mixing system for the preparation of mixtures of components required by processing machines for the manufacture of plastic products. In particular the invention is suitable for the preparation of weighed mixtures comprised of at least two different masterbatches in order to obtain the color shade desired for a specific plastic product.

METHOD AND DEVICE FOR EXTRUSION OF HOLLOW PELLETS

Described herein are extrusion processes to produce hollow pellets. Also disclosed are pelletizer devices that can be used to produce the hollow pellets. The processes and devices make use of an extrusion die having a die orifice and an insert that is placed in the die orifice to produce the hollow pellets. 1. An extrusion process for producing hollow pellets , the process comprising:extruding molten material through an extrusion die comprising a die hole and an insert disposed in the die hole, wherein the insert comprises a rear section and a forward section, the rear section comprises a hollow can and the forward section comprises a mandrel, the mandrel comprises a plurality of fins, and the fins maintain the position of the mandrel in the die hole as the molten material is extruded;cooling the extruded molten material effective to produce a pellet having a hollow cavity.2. The process of claim 1 , wherein the molten material flows through the hollow can of the rear section of the insert.3. The process of claim 1 , wherein the molten material passes through at least one hole disposed between the hollow can of the rear section of the insert and the fins of the mandrel.4. The process of claim 1 , wherein the fins comprise protrusions that abut the die hole to maintain the position of the mandrel as the molten material flows around the fins of the mandrel.5. The process of claim 1 , wherein at least one of the fins of the mandrel is tapered.6. The process of claim 1 , wherein the mandrel further comprises a protrusion to squeeze the molten material into a uniform flow.7. The process of claim 1 , wherein the can is threaded.8. The process of claim 1 , wherein the mandrel is a removable mandrel.9. The process of claim 8 , wherein the mandrel may be threadedly attached to the can.10. The process of claim 1 , wherein the hollow cavity penetrates a first surface of the pellet and continuously extends through a second surface of the pellet.11. The process of claim 1 , ...

Method and Apparatus for Forming an Expandable Foam Pellet Having a Hard Outer Shell by Underwater Pelletizing, and Expandable Foam Pellets Formed Thereby

A pre-expanded hard shell thermoplastic foam pellet is made by controlling the temperature of the melt exiting a die plate in an underfluid pelletizer, and by controlling the temperature and pressures of the cooling fluid as the pellet flows from the cutting chamber through the slurry line toward a centrifugal dryer. The process and apparatus used for controlling the above parameters is described in conjunction with making the pellets. The pellets thus formed may have a generally spherical shape, or they may have odd, irregular shapes with foam hemorrhages protruding therefrom, depending on the conditions during pre-expansion.

Foams based on thermoplastic polyurethanes

Expandable thermoplastic polyurethane comprising blowing agent, wherein the Shore hardness of the thermoplastic polyurethane is from A 44 to A 84.

FOAMS BASED ON THERMOPLASTIC POLYURETHANES

Expandable thermoplastic polyurethane comprising blowing agent, wherein the Shore hardness of the thermoplastic polyurethane is from A 44 to A 84. 115-. (canceled)16. A method of making a sole for an article of footwear , the method comprising:expanding thermoplastic polyurethane beads having a Shore hardness between A 44 and A 84; andfusing the expanded thermoplastic polyurethane beads to one another to form the sole.17. The method of claim 16 , wherein the sole comprises a midsole.18. The method of claim 17 , wherein the midsole consists of the expanded thermoplastic polyurethane beads.19. The method of claim 17 , wherein the expanded thermoplastic polyurethane beads form the entire midsole.20. The method of claim 16 , wherein the sole comprises an insole.21. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads form the entire sole.22. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads are based on a polyether alcohol.23. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads are based on a polyester alcohol.24. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads have a diameter between 0.2 mm and 20 mm.25. The method of claim 24 , wherein the diameter is between 0.5 mm and 15 mm.26. The method of claim 24 , wherein the diameter is between 1 mm and 12 mm.27. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads are spherical.28. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads are cylindrical.29. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads are elongate.30. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads have a density between 8 g/l and 600 g/l.31. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads have a density between 10 g/l and 300 g/l.32. The method of claim 16 , wherein fusing the expanded thermoplastic ...

FOAMS BASED ON THERMOPLASTIC POLYURETHANES

Expandable thermoplastic polyurethane comprising blowing agent, wherein the Shore hardness of the thermoplastic polyurethane is from A 44 to A 84. 115-. (canceled)16. A method of making a sole for an article of footwear , the method comprising:melting thermoplastic polyurethane and a blowing agent in an extruder;discharging the melted thermoplastic polyurethane and blowing agent from the extruder to form thermoplastic polyurethane beads;expanding the thermoplastic polyurethane beads; andfusing the expanded thermoplastic polyurethane beads to one another to form the sole.17. The method of claim 16 , wherein the thermoplastic polyurethane and the blowing agent are introduced into the extruder together.18. The method of claim 16 , wherein the thermoplastic polyurethane and the blowing agent are introduced into the extruder separately.19. The method of claim 16 , wherein the thermoplastic polyurethane and the blowing agent are introduced into the extruder at different locations.20. The method of claim 16 , wherein the thermoplastic polyurethane and the blowing agent are introduced into the extruder at one location.21. The method of claim 16 , wherein the extruder comprises a single-screw extruder.22. The method of claim 16 , wherein the extruder comprises a double-screw extruder.23. The method of claim 16 , wherein the extruder is operated at a temperature between 150° C. and 250° C.24. The method of claim 16 , wherein the extruder is operated at a temperature between 180° C. and 210° C.25. The method of claim 16 , wherein the blowing agent comprises a hydrocarbon.26. The method of claim 16 , wherein the blowing agent comprises between 0.1% and 40% of the total weight of the thermoplastic polyurethane.27. The method of claim 16 , wherein the sole comprises a midsole.28. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads have a diameter between 0.2 mm and 20 mm.29. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads ...

FOAMS BASED ON THERMOPLASTIC POLYURETHANES

Expandable thermoplastic polyurethane comprising blowing agent, wherein the Shore hardness of the thermoplastic polyurethane is from A 44 to A 84. 115-. (canceled)16. A method of making a sole for an article of footwear , the method comprising:impregnating thermoplastic polyurethane pellets with a blowing agent in aqueous suspension under pressure to form thermoplastic polyurethane beads;depressurizing the thermoplastic polyurethane beads to allow the thermoplastic polyurethane beads to expand; andfusing the expanded thermoplastic polyurethane beads to one another to form the sole.17. The method of claim 16 , wherein the impregnating occurs at a temperature of at least 100° C.18. The method of claim 17 , wherein the temperature is between 100° C. and 150° C.19. The method of claim 17 , wherein the temperature is between 110° C. and 145° C.20. The method of claim 17 , wherein the depressurizing occurs without cooling the thermoplastic polyurethane beads.21. The method of claim 16 , wherein the impregnating occurs at a pressure between 2 bar and 100 bar.22. The method of claim 16 , wherein a time for the impregnating is between 0.5 hours and 10 hours.23. The method of claim 16 , further comprising cooling the thermoplastic polyurethane beads before the depressurizing.24. The method of claim 23 , wherein the cooling results in a temperature between 20° C. and 95° C.25. The method of claim 16 , wherein the blowing agent comprises organic liquids.26. The method of claim 16 , wherein the blowing agent comprises inorganic gases.27. The method of claim 16 , wherein the blowing agent comprises between 0.1% and 40% of the total weight of the thermoplastic polyurethane pellets.28. The method of claim 16 , wherein the sole comprises a midsole.29. The method of claim 16 , wherein the sole comprises a insole.30. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads have a diameter between 0.2 mm and 20 mm.31. The method of claim 16 , wherein the expanded ...

FOAMS BASED ON THERMOPLASTIC POLYURETHANES

Expandable thermoplastic polyurethane comprising blowing agent, wherein the Shore hardness of the thermoplastic polyurethane is from A 44 to A 84. 115-. (canceled)16. A method of making a molded particle foam , the method comprising:impregnating thermoplastic polyurethane pellets with a blowing agent to form expandable thermoplastic polyurethane beads;expanding the thermoplastic polyurethane beads; andfusing the expanded thermoplastic polyurethane beads to one another in a closed mold to form a sole for an article of footwear.17. The method of claim 16 , wherein the sole comprises a midsole.18. The method of claim 17 , wherein the midsole consists of the expanded thermoplastic polyurethane beads.19. The method of claim 17 , wherein the expanded thermoplastic polyurethane beads form the entire midsole.20. The method of claim 16 , wherein the sole comprises an insole.21. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads form the entire sole.22. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads are based on a polyether alcohol.23. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads are based on a polyester alcohol.24. The method of claim 16 , wherein the sole comprises a density between 8 and 600 g/l.25. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads have a diameter between 0.2 mm and 20 mm.26. The method of claim 25 , wherein the diameter is between 0.5 mm and 15 mm.27. The method of claim 25 , wherein the diameter is between 1 mm and 12 mm.28. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads are spherical.29. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads are cylindrical.30. The method of claim 16 , wherein the expanded thermoplastic polyurethane beads are elongate.31. The method of claim 16 , wherein fusing the expanded thermoplastic polyurethane beads to one another in a closed sole to ...

ABUSE-PROOFED DOSAGE FORM

The invention relates to a dosage form that is thermoformed without discoloration and is safeguarded from abuse, comprising at least one synthetic or natural polymer having a breaking strength of at least 500 N in addition to one or more active substances that could be subject to abuse. The invention also relates to a corresponding method for producing said dosage form. 1. An abuse-proofed dosage form thermoformed by extrusion without discoloration comprising one or more active ingredients with abuse potential (A) , optionally physiologically acceptable auxiliary substances (B) , at least one synthetic or natural polymer (C) and optionally at least one wax (D) ,wherein the dosage form exhibits a breaking strength of at least 500 N.2. The dosage form according to claim 1 , which is in the form of a tablet.3. The dosage form according to claim 1 , which contains as polymer (C) at least one polymer selected from the group consisting of polyalkylene oxide claim 1 , polyethylene claim 1 , polypropylene claim 1 , polyvinyl chloride claim 1 , polycarbonate claim 1 , polystyrene claim 1 , polyacrylate claim 1 , copolymers thereof and mixtures thereof.4. The dosage form according to claim 3 , wherein the polyalkylene oxide is selected from the group consisting of polymethylene oxide claim 3 , polyethylene oxide claim 3 , polypropylene oxide claim 3 , copolymers thereof and mixtures thereof.5. The dosage form according to claim 1 , wherein the polymer (C) comprises polyethylene oxide having a molecular weight of at least 0.5 million.6. The dosage form according to claim 5 , wherein the molecular weight of the polyethylene oxide (C) is at least 1 million.7. The dosage form according to claim 6 , wherein the molecular weight of the polyethylene oxide is in the range of from about 1 to about 15 million.8. The dosage form according to claim 1 , which contains the wax (D) claim 1 , and the wax (D) is at least one natural claim 1 , semi-synthetic or synthetic wax with a softening ...

Molding compound containing polyether block amide (PEBA)

A molding compound contains polyether block amide (PEBA) based on a subunit 1 made of at least one linear aliphatic diamine having 5 to 15 C atoms and at least one linear aliphatic or aromatic dicarboxylic acid having 6 to 16 C atoms. The PEBA also contains a subunit 2 made of at least one polyether diol having at least 3 C atoms per ether oxygen and primary OH groups at the chain ends. The sum of the C atoms of diamine and dicarboxylic acid is odd and is 19 or 21, and the number-average molar mass of the subunit 2 is 200 to 900 g/mol. A molded object can be created from the molding compound, which can be a molded part, a film, a bristle, a fiber, or a foam. 1: A moulding composition , comprising: polyether block amide (PEBA) having a subunit 1 and a subunit 2 ,wherein the subunit 1 comprises at least one linear aliphatic diamine containing 5 to 15 carbon atoms and at least one linear aliphatic dicarboxylic acid containing 6 to 16 carbon atoms, andwherein the subunit 2 comprises at least one polyether diol containing at least 3 carbon atoms per ether oxygen and primary OH groups at the chain ends,wherein a sum total of the carbon atoms from diamine and dicarboxylic acid is 19 or 21 carbon atoms; andwherein a number-average molar mass of the subunit 2 is 200 to 900 g/mol.2: The moulding composition according to claim 1 , wherein the number-average molar mass of the subunit 2 is 400 to 700 g/mol.3: The moulding composition according to claim 1 , wherein a number-average molar mass of the subunit 1 is 250 to 4500 g/mol.4. The moulding composition according to claim 3 , wherein the number-average molar mass of the subunit 1 is 400 to 2500 g/mol.5. The moulding composition according to claim 1 , wherein the polyether diol is selected from the group consisting of polypropane-1 claim 1 ,3-diol claim 1 , polytetramethylene glycol claim 1 , and mixtures thereof.6: The moulding composition according to claim 1 , wherein the number of carbon atoms in the diamine is an even ...

Methods for Making Polyethylene Polymers

Methods for reducing gels and/or dome sheeting in gas phase polymerization processes and their resulting products are provided. The polymerization processes include polymerizing ethylene and one or more optional comonomers in a fluidized bed reactor in the presence of a metallocene catalyst, hydrogen, and at least one condensing agent. 1. A method for reducing gels in a polyethylene polymer , the method comprising:polymerizing ethylene and one or more optional comonomers in a fluidized bed reactor in the presence of a metallocene catalyst, hydrogen, and at least one condensing agent; and{'sub': '2', 'sup': 3', '3, 'controlling the content of the hydrogen and the at least one condensing agent in the fluidized bed reactor at conditions sufficient to form the polyethylene polymer having a melt index (I) of from 0.1 g/10 min to 3.0 g/10 min and a density of from 0.890 g/cmto 0.950 g/cm, wherein the conditions sufficient to form the polyethylene polymer comprise a reaction temperature of from 60° C. to 120° C. and a residence time of from 0.5 hr to 5 hours.'}2. The method of claim 1 , wherein the density of the polyethylene polymer is from 0.910 g/cmto 0.915 g/cm.3. The method of claim 1 , wherein the melt index (I) of the polyethylene polymer is from 0.5 g/10 min to 1.0 g/10 min.4. The method of claim 1 , further comprising controlling hydrogen to ethylene mole ratio in the reactor at about 3.0 to 8.0 ppm/mol % (ppm of hydrogen per mol % of ethylene).5. The method of claim 1 , further comprising increasing the hydrogen concentration if the melt index (I) decreases.6. The method of claim 1 , wherein the comonomer is hexene and the at least one condensing agent is isopentane.7. The method of claim 1 , wherein the metallocene catalyst is a hafnocene metallocene catalyst contacted with methyl alumoxane supported on silica.8. A method for reducing gels in a polyethylene polymer claim 1 , the method comprising:polymerizing ethylene and one or more optional comonomers in a ...

METHOD FOR PRODUCING A CREEP RESISTANT MATERIAL

Embodiments of the invention relate to processes for the production of a creep-resistant material. One of the processes provides the following: provision of a metal powder; provision of metallic or ceramic nanoparticles; mixing of the metal powder with the nanoparticles, where during the mixing procedure the particles of the metal powder and the nanoparticles neither change their size nor change their shape; and consolidation of the mixture of metal powder and of nanoparticles to form a material with a polycrystalline metal structure, where the individual grains which have resulted from the consolidation and which are part of the polycrystalline metal structure have been produced from the particles of the metal powder and are separated from one another by grain boundaries, and where the arrangement has the nanoparticles at the grain boundaries. 1. A process for the production of a creep-resistant material with the following steps:provision of a metal powder,provision of metallic or ceramic nanoparticles,mixing of the metal powder with the nanoparticles, where during the mixing procedure the particles of the metal powder and the nanoparticles neither change their size nor change their shape, andconsolidation of the mixture of metal powder and of nanoparticles to form a material with a polycrystalline metal structure, wherethe individual grains which have resulted from the consolidation and which are part of the polycrystalline metal structure have been produced from the particles of the metal powder and are separated from one another by grain boundaries, and where the arrangement has the nanoparticles at the grain boundaries.2. The process as claimed in claim 1 , wherein the mixing of the metal powder with the nanoparticles is achieved via grinding in a mill claim 1 , where the nanoparticles arrange themselves at the surfaces of the particles of the metal powder during the mixing procedure claim 1 , and where the grinding time claim 1 , the nature of the mill and the ...

APPARATUS AND METHOD FOR CONTROLLED PELLETIZATION PROCESSING

An apparatus and process to maintain control of the temperature of low-melting compounds, high melt flow polymers, and thermally sensitive materials for the pelletization of such materials. The addition of a cooling extruder, and a second melt cooler if desired, in advance of the die plate provides for regulation of the thermal, shear, and rheological characteristics of narrow melting-range materials and polymeric mixtures, formulations, dispersions or solutions. The apparatus and process can then be highly regulated to produce consistent, uniform pellets of low moisture content for these otherwise difficult materials to pelletize. 127-. (canceled)28. A method for pelletizing a melt having at least two different material components that remain mixed at a temperature of at least about 200° F. but are prone to phase separation upon cooling and therefore are difficult to pelletize in a pelletizer processing line in which it is desirable to have the melt at the die plate at a temperature of between about 75° F. to about 400° F. for pelletization while , at the same time , preventing the at least two different materials from undergoing phase separation but to remain mixed , the method comprising the steps of inputting a melt received from an upstream source at a temperature of between about 200° F. to about 600° F. into a melt cooler located upstream of a cooling extruder to cool the melt in advance of said cooling extruder , said melt cooler having static mixing elements for efficient cooling , said melt proceeding through the melt cooler to exit at a temperature of between about 100° F. to about 550° F. for entry into the cooling extruder , the cooling extruder having a dynamic mixing element and configured to receive the melt from the melt cooler at the temperature of between about 100° F. to about 550° F. , said melt passing through said cooling extruder with said dynamic mixing element maintaining dispersive homogeneity of the melt while the melt is further cooled ...

PROCESS AND DEVICE FOR THE PREPARATION OF AN ESTER IN GRANULE FORM

The present invention relates to a process for the preparation of an ester comprising an after-treatment of the ester to give an ester in granule form of defined particle size distribution, a device for carrying out this process, a process for the preparation of a thermoplastic composition comprising the ester prepared according to the invention, a process for the production of a shaped article comprising the ester according to the invention or the thermoplastic composition according to the invention, a process for the production of a packed product, a process for the production of an at least partly coated object, and uses of the esters according to the invention as an additive in various compositions. 3. The process according to claim 1 , wherein the particles obtainable as a particle stream in after-treatment step ee. havea mass mean particle size in the range of from 400 to 800 μm, andup to 20 wt. % of these particles have a particle size of less than 200 μm, andup to 20 wt. % of these particles have a particle size of more than 1,000 μm.4. The process according to claim 1 , wherein the particles obtainable as a particle stream in after-treatment step ee. havea mass mean particle size in the range of from 400 to 800 μm, andup to 15 wt. % of these particles have a particle size of less than 200 μm, andup to 15 wt. % of these particles have a particle size of more than 1,000 μm.5. The process according to claim 1 , wherein the entry temperature of the cooling fluid is in a range of from −5 to +30° C.6. The process according to claim 1 , wherein the contact region is flowed through by the cooling fluid with a flow rate in a range of from 10 claim 1 ,000 to 60 claim 1 ,000 m/h.7. The process according to claim 1 , wherein the fluid stream prior to atomization is charged with a pressure in a range of from 1 claim 1 ,500 to 40 claim 1 ,000 mbar.8. The process according to claim 1 , wherein the carboxylic acid component is chosen from the group consisting of caprylic ...

Method for the Production of Polyester Granulates From Highly Viscous Polyester Melts and Also Device for the Production of the Polyester Granulates

The invention relates to a method and device for the direct production of polyester granulate from a highly viscous polyester melt with a polymerisation degree of 132 to 165, as well as the granulates formed thereform. In the method, the highly viscous polyester melt is subjected to a pre-drying and drying/degassing after a hot cutting method. Hot cutting is implemented at water temperatures of 70° C. to 95° C. and with a liquid to solid ratio of 8 to 12:1. 1. Method for the direct production of polyester granulate from a highly viscous polyester melt (hiV) with a polymerisation degree (PG) of 132 to 165 , in which the hiV melt is subjected to a pre-drying and drying/degassing after a hot cutting method , characterised in that the cutting phase in the hot cutting method is effected at water temperatures of 70 to 95° C. and a liquid to solid ratio of 8 to 12:1 is maintained.2. Method according to claim 1 , characterised in that a dwell time in the water of the hot cutting until entry into the pre-drying of <1 second is maintained.3. Method according to claim 1 , characterised in that the liquor is maintained in its entirety until entry into the pre-drying.4. Method according to claim 1 , characterised in that claim 1 , during the pre-drying in the upper fifth of the pre-dryer claim 1 , 99% of the circulating water is separated within <10 seconds.5. Method according to claim 1 , characterised in that claim 1 , during the pre-drying in the pre-dryer claim 1 , a crystallisation degree of at least 5% is achieved so that the agglomeration of granulates is prevented.6. Method according to claim 1 , characterised in that an outlet moisture of the granulate from the pre-drying of <200 ppm is achieved.7. Method according to claim 1 , characterised in that the dew point during pre-drying in the pre-dryer is controlled to 8 to 12° C. by means of a quantity of purging air from a subsequently connected collecting container.8. Method according to claim 7 , characterised in that a ...

ATAZANAVIR SULFATE FORMULATIONS WITH IMPROVED Ph EFFECT

Disclosed are compressed tablets containing atazanavir sulfate and an acidifying agent, optionally with another active agent, e.g., anti-HIV agents, and optionally with precipitation retardant agents. Also disclosed are processes for making the tablets, and methods of treating HIV. 1. A compressed tablet comprising atazanavir sulfate and an acidifying agent selected from citric acid , tartaric acid , fumaric acid , ascorbic acid and mixtures thereof.2. A compressed tablet according to further comprising a precipitation retardant agent.3. A compressed tablet according to wherein the precipitation retardant agent is selected from the group consisting of polyvinylpyrrolidone claim 1 , polyvinylpyrrolidone-vinyl acetate claim 1 , hydroxypropyl cellulose claim 1 , hydoxypropyl methylcellulose claim 1 , and hydroxypropylmethylcellulose acetate succinate and mixtures thereof.4. A compressed tablet according to comprising at least one other agent having anti-HIV activity or the ability to enhance the pharmacokinetics of the atazanavir.5. A compressed tablet according to wherein the other agent is ritonavir.6. A compressed tablet according to wherein the other agent is cobicistat.7. A compressed tablet comprising atazanavir sulphate claim 4 , cobicistat claim 4 , an acidifying agent and a precipitation retardant agent.8. A compressed tablet according to wherein the acidifying agent is selected from citric acid claim 7 , tartaric acid claim 7 , fumaric acid claim 7 , ascorbic acid and mixtures thereof.9. A compressed tablet according to wherein the acidifying agent is present in an amount of 10-30 w/w %.10. A compressed tablet according to further comprising a precipitation retardation agent selected from polyvinylpyrrolidone claim 8 , polyvinylpyrrolidone-vinyl acetate claim 8 , hydroxypropyl cellulose claim 8 , hydoxypropyl methylcellulose claim 8 , and hydroxypropylmethylcellulose acetate succinate and mixtures thereof.11. A compressed tablet according to wherein the ...

Resin powder for solid freeform fabrication, device for solid freeform fabrication object, and method of manufacturing solid freeform fabrication object

A resin powder for solid freeform fabrication includes a particle having a pillar-like form, wherein the ratio of the height of the particle to the diameter or the long side of the bottom of the particle is 0.5 to 2.0, the particle has a 50 percent cumulative volume particle diameter of from 5 to 200 μm, and the ratio (Mv/Mn) of the volume average particle diameter (Mv) to the number average particle diameter (Mn) of the particle is 2.00 or less.

METHOD FOR PREPARING FULLY-DEGRADABLE NON-WOVEN FABRIC BY SPUN-BONDING

Disclosed is a method for preparing a fully-degradable non-woven fabric by spun-bonding, including: (S1) preparation of a poly(caprolactone-co-lactide acid) (P(CL-co-LA)); (S2) preparation of a copolymerized-modified poly(lactide acid) (PLA); and (S3) preparation of a full-degradable non-woven fabric using a spun-bond method. In this disclosure, the PLA is modified in gradient several times to prepare the full-degradable non-woven fabric in combination with an optimized spun-bonding method. 1. A method for preparing a fully-degradable non-woven fabric by spun-bonding , comprising:(S1) adding lactic acid (L-LA) and ε-caprolactone (ε-CL) into a reactor to obtain a reaction system, wherein a weight ratio of the L-LA to the ε-CL is 1:(2-4);adding a catalyst to the reaction system followed by reaction at 130-140° C. under vacuum for 18-24 h to obtain a crude copolymerization product; wherein the catalyst is 0.1-0.2% of a total weight of the reaction system; andpurifying the crude copolymerization product to obtain a caprolactone-lactic acid random copolymer P(CL-co-LA);(S2) drying polylactic acid (PLA), wherein a melt index of the PLA at 210° C. is 20-40 g/10 min;mixing a dried PLA and the (P(CL-co-LA)) uniformly followed by melt blending at 150-160° C. under a rotation speed of 100-120 r/min to obtain a blend, wherein a weight ratio of the dried PLA to the (P(CL-co-LA)) is (10-50):1, and the melt blending is performed for 5-10 min; andsubjecting the blend to compression molding at 180-190° C. and 8-10 MPa to obtain a copolymerized modified PLA; and{'sub': 2', '2, '(S3) subjecting the copolymerized modified PLA, poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV), nano-SiO, a compatibilizer and a chain extender to blending to obtain a melt-blown blend, wherein a weight ratio of the copolymerized modified PLA to the PHBV to the nano-SiOto the compatibilizer to the chain extender is (70-85):(1-3):(0.2-0.3):(0.005-0.01):(0.001-0.005);'}feeding the melt-blown blend to a ...

Polyglycolic acid support material for additive manufacturing systems

A support material for use in an additive manufacturing system, which compositionally includes a polyglycolic acid polymer, which is at least partially soluble in an aqueous solution, and which is configured for use in the additive manufacturing system for printing a support structure in coordination with printing of a three-dimensional part.

COMPOSITE MATERIALS

A composite material that includes a layer of reinforcing fibres impregnated with a curable resin matrix and a plurality of electrically conductive composite particles positioned adjacent or in proximity to the reinforcing fibres. Each of the electrically conductive composite particles is composed of a conductive component and a polymeric component, wherein the polymeric component includes one or more polymers that are initially in a solid phase and are substantially insoluble in the curable resin, but is able to undergo at least partial phase transition to a fluid phase during a curing cycle of the composite material. 1. A curable composite material comprising:i) at least one structural layer of reinforcing fibres impregnated with a curable resin matrix; and{'sub': 'g', 'ii) at least one electrically conductive composite particle adjacent or in proximity to said reinforcing fibres, said conductive composite particle comprising a conductive component and a polymeric component, wherein the polymeric component of the conductive composite particle comprises one or more thermoplastic polymers that are initially in a solid phase and substantially insoluble in the curable resin matrix prior to curing of the composite material, but is able to undergo at least partial phase transition to a fluid phase by dissolving in the resin matrix during a curing cycle of the composite material, and wherein the one or more thermoplastic polymers has/have a glass transition temperature (T) of greater than 200° C.'}2. The composite material of claim 1 , wherein said curable resin matrix is a thermoset composition in which at least 50% of the polymeric component of the conductive composite particle is soluble in the resin matrix during curing of the composite material claim 1 , and wherein the phase transition to the fluid phase occurs by dissolution of the polymeric component in the resin matrix.3. The composite material of claim 1 , wherein the conductive component of each electrically ...

Uniform Dispersing of Graphene Nanoparticles in a Host

The present invention includes a simple, scalable and solventless method of dispersing graphene into polymers, thereby providing a method of large-scale production of graphene-polymer composites. The composite powder can then be processed using the existing techniques such as extrusion, injection molding, and hot-pressing to produce a composites of useful shapes and sizes while keeping the advantages imparted by graphene. Composites produced require less graphene filler and are more efficient than currently used methods and is not sensitive to the host used, such composites can have broad applications depending on the host's properties.

STABILIZED COMPOSITIONS AND PROCESS FOR PRODUCING SAME

Stabilized compositions having an organic material to be stabilized and a resin masterbatch system provided as closed end pellets are provided herein, along with processes for producing stabilized articles. 1. A stabilized composition comprising:an organic material to be stabilized; and{'claim-text': ['a core material comprising a stabilizing amount of at least one stabilizer additive selected from the group consisting of a hindered amine light stabilizers (HALS), an organic phosphite or phosphonite, a hindered phenol, a chromane, an ultraviolet light (UV) absorber, a hindered benzoate, a hydroxylamine, a tertiary amine oxide, and a free radical polymerization inhibitor; and', 'an outer layer comprising a thermoplastic polymer, wherein the outer layer has a thickness from 0.001 mm to 1 cm, and wherein the outer layer is co-extruded with and encapsulates said core material such that the pellets are sealed at each end and are leak free,'], '#text': 'a stabilizing amount of a resin masterbatch system provided as closed end pellets, said pellets comprising:'}wherein the core material is solid, semi-solid, waxy, or liquid at 25° C., and is from 0.01 wt. % to 65 wt. %, based on the total weight of the stabilized composition; andwherein the thermoplastic polymer of the outer layer is compatible with the organic material to be stabilized.2. The stabilized composition according to claim 1 , wherein the stabilizer additive includes hindered amine light stabilizer compounds comprising esters of 2 claim 1 ,2 claim 1 ,6 claim 1 ,6-tetramethyl-4-piperidinol with C-saturated and C-unsaturated fatty acids.3. The stabilized composition according to claim 1 , wherein the stabilizer additive comprises at least one free radical polymerization inhibitor selected from the group consisting of phenothiazine claim 1 , a phenothiazine derivative claim 1 , hydroquinone claim 1 , hydroquinone monomethyl ether (MEHQ) claim 1 , and tert-butyl catechol (TBC).4. The stabilized composition ...

Thermoplastic Polyurethane Particles And Manufacturing Method Therefor

The present invention provides thermoplastic polyurethane particles, which are formed in a continuous matrix phase from a thermoplastic polyurethane resin and have a particle diameter of 200-500 μm. In a differential scanning calorimetry (DSC) curve of the thermoplastic polyurethane particles, derived from the analysis of a temperature rise of 10° C./min by DSC, a peak of the cold crystallization temperature (T cc ) is shown at a temperature between the glass transition temperature (T g ) and the melting point (T m ). The thermoplastic polyurethane particles have a compression degree of 10-20%.

Method for Producing Shaped Polymeric Microparticles

Method for producing shaped polymeric microparticles of non-spherical shape, comprising the steps of: placing one or more microparticles of substantially spherical shape in a respective micro-cavity of a mould having the desired non-spherical shape; subjecting said microparticles to softening by exposure to a solvent or mixture of solvent/non-solvent, in the liquid or vapour state, adapted to plasticize the polymeric material constituting said microparticles, and possibly assisting the solvent plasticization process by heat treatment, not excluding the possibility, in less critical cases in terms of conservation of the microstructure, of carrying out heat treatment exclusively, at a temperature not exceeding 40% of the glass transition temperature of the polymer material; and removing said microparticles from the mould cavities. 1. Method for producing shaped polymeric microparticles of non-spherical shape , characterized in that it comprises the steps of:providing microparticles in a substantially spherical shape;placing one or more of said polymeric microparticles in a respective micro-cavity of a mould having the desired non-spherical shape;subjecting said microparticles to softening by exposure to a solvent or mixture of solvent and non-solvent, in the liquid or vapour state, adapted to plasticize the polymeric material constituting said microparticles, and optionally assisting the solvent plasticization process by heating to a temperature preferably below 60° C. and more preferably below 40° C. or exclusively by heat treatment at a temperature not exceeding 40% above the glass transition temperature; andremoving said microparticles shaped in this way from the mould cavities.2. Method according to claim 1 , characterized in that it comprises the step of subjecting said microparticles claim 1 , which have been subjected to softening claim 1 , to a pressure in the respective mould cavities prior to removal from said mould cavity.3. Method according to claim 1 , ...

ARTIFICIAL ANTIGEN PRESENTING CELLS HAVING A DEFINED AND DYNAMIC SHAPE

Compositions and methods comprising asymmetrical artificial antigen presenting cells (aAPCs) are disclosed. The non-spherical aAPCs more closely mimic endogenous cell-cell interactions and can be used for antigen-specific immunotherapy. 139-. (canceled)40. A method for making an artificial antigen presenting cell (aAPC) comprising a three-dimensional microparticle or nanoparticle having an asymmetrical shape defined by a dimension (a) along an x-axis , a dimension (b) along a y-axis , and a dimension (c) along a z-axis , wherein at least one of (a) , (b) , or (c) is not equal to at least one other dimension (a) , (b) , or (c); and one or more molecules capable of interacting with one or more T cell receptors (TCRs) of a T cell , the method comprising:(a) providing or preparing a plurality of microparticles or nanoparticles;(b) preparing a film comprising the plurality of microparticles or nanoparticles;(c) stretching the film comprising the plurality of microparticles or nanoparticles to form a plurality of three-dimensional microparticles or nanoparticles having an asymmetrical shape;(d) harvesting the plurality of three-dimensional microparticles or nanoparticles having an asymmetrical shape; and(e) coupling to the plurality of three-dimensional microparticles or nanoparticles having an asymmetrical shape one or more molecules capable of interacting with one or more T cell receptors (TCRs) of a T cell.41. The method of claim 40 , wherein the film is heated before being stretched.42. The method of claim 40 , wherein the plurality of three-dimensional microparticles or nanoparticles having an asymmetrical shape is allowed to relax back partially or completely to a spherical or near spherical shape.43. The method of claim 42 , further comprising heating the plurality of three-dimensional microparticles or nanoparticles having an asymmetrical shape to induce the microparticles or nanoparticles to relax to a shape similar to an original shape of the asymmetric particle ...

Method of Manufacturing a High Performance Polymer and Nanotube Composite

A method of manufacturing a high performance polymer and nanotube composite is used to produce a nylon resin polymer with favorable material properties over traditional resin polymers. A plurality of tungsten sulfide nanotubes is combined with a plurality of nylon resin pellets which are ground up into a nylon resin powder. A heterogeneous mixture of the nylon resin powder and the plurality of tungsten nanotube is heated within a plastic extrusion machine such that the nylon resin powder melts and envelopes the plurality of tungsten sulfide nanotubes. With the plurality of tungsten sulfide nanotubes suspended in the fluid nylon resin, the heterogeneous mixture is extruded from the plastic extrusion machine as a pultrusion. The pultrusion is segmented into a plurality of polymer composites as the plutrusion solidifies from cooling for various materials applications.

BONDING MATERIAL, METHOD FOR PRODUCING THE SAME, FIBER MOLDED PRODUCT, AND METHOD FOR PRODUCING THE SAME

A method for producing a bonding material includes a kneading step of melting and kneading a polyester resin and a terpene resin to prepare a resin composition and a crushing step of crushing the resin composition. 1. A method for producing a bonding material , the method comprising:a kneading step of melting and kneading a polyester resin and a terpene resin to prepare a resin composition; anda crushing step of crushing the resin composition.2. The method for producing a bonding material according to claim 1 , whereinthe kneading step includes performing the melting and the kneading such that a content of the terpene resin relative to a total amount of the resin composition is 5% by mass or more and 10% by mass or less.3. The method for producing a bonding material according to claim 1 , whereinthe crushing step includes crushing the resin composition so as to have a volume average particle size of 1 μm or more and 50 μm or less.4. The method for producing a bonding material according to claim 1 , further comprisinga classification step of classifying the bonding material so that a volume average particle size of the bonding material is 5 μm or more and 23 μm or less.5. A bonding material comprising a polyester resin and', 'a terpene resin., 'a resin composition containing'}6. The bonding material according to claim 5 , whereina content of the terpene resin relative to a total amount of the resin composition is 5% by mass or more and 10% by mass or less.7. The bonding material according to claim 5 , whereinthe bonding material is powder and has a volume average particle size of 5 μm or more and 23 μm or less.8. A fiber molded product comprising:{'claim-ref': {'@idref': 'CLM-00005', 'claim 5'}, 'the bonding material according to ; and'}a plurality of fibers, whereinthe plurality of fibers is bound by the bonding material.9. A method for producing a fiber molded product claim 5 , the method comprising:{'claim-ref': {'@idref': 'CLM-00005', 'claim 5'}, 'a mixing step ...

MOLDING MATERIAL OF SAPONIFIED ETHYLENE-VINYL ESTER-BASED COPOLYMER

Provided is a melt-molding material which is produced using an EVOH resin and has improved feeding property. A pellet mixture comprising a first EVOH resin pellets (pellet 1) each having approximately circular or elliptical cross-section and having an ethylene unit content of 20 to 34 mol %, and a second EVOH resin pellets (pellet 2) each having ethylene unit content of 35 to 60 mol %, wherein the difference of ethylene unit content between the pellet 1 and the pellet 2 is from 10 to 30 mol %. 1. A molding material comprising saponified ethylene-vinyl ester-based copolymer pellets ,said saponified ethylene-vinyl ester-based copolymer pellets being each of which has approximately circular or elliptical cross-section having a ratio of major axis to minor axis ranging from 1.0 to 1.5;said saponified ethylene-vinyl ester-based copolymer pellets being a pellet mixture comprising a first saponified ethylene-vinyl ester-based copolymer pellet (pellet 1) having an ethylene unit content of 20 to 34 mol %, and a second saponified ethylene-vinyl ester-based copolymer pellet (pellet 2) having an ethylene unit content of 35 to 60 mol %;the difference in ethylene unit content between the first and second saponified ethylene-vinyl ester-based copolymer pellets being from 10 to 30 mol %;the first and second saponified ethylene-vinyl ester-based copolymer pellets each having a saponification degree of more than 99 mol % to 100 mol %; anda ratio (pellet 1/pellet 2) in weight of content in said pellets of molding material of the first saponified ethylene-vinyl ester-based copolymer pellet (pellet 1) to the second saponified ethylene-vinyl ester-based copolymer pellet (pellet 2) being in the range of 95/5 to 50/50.2. The molding material according to claim 1 , wherein the saponified ethylene-vinyl ester-based copolymer pellets are obtained by cutting molten saponified ethylene-vinyl ester-based copolymer into pellets.3. The molding material according to claim 2 , wherein said cutting ...

FEEDSTOCKS FOR ADDITIVE MANUFACTURING AND METHODS FOR THEIR PREPARATION AND USE

Feedstocks for additive manufacturing are provided. The feedstock may include a matrix material, and one or more capsules disposed in the matrix material, wherein the one or more capsules are configured to be removable from a surface portion when the matrix material is solidified to form one or more cavities in the surface portion. Methods of depositing the feedstocks and objects formed from the feedstocks are also provided. 1. A feedstock for additive manufacturing , the feedstock comprising:a matrix material; andone or more capsules disposed in the matrix material,wherein the one or more capsules are configured to be removable from at least a surface portion of the matrix material when the matrix material is solidified, to form one or more cavities in the surface portion.2. The feedstock of claim 1 , wherein the one or more capsules comprise nano-scale capsules claim 1 , micro-scale capsules claim 1 , or both.3. The feedstock of claim 1 , wherein the one or more capsules are disposed in at least the surface portion of the matrix material.4. The feedstock of claim 1 , wherein the one or more capsules comprise solid capsules claim 1 , hollow capsules claim 1 , or both.5. The feedstock of claim 1 , wherein the matrix material comprises at least one thermoplastic polymer claim 1 , at least one thermoset polymer claim 1 , at least one photoactive polymer claim 1 , or any combination thereof.6. The feedstock of claim 5 , wherein the thermoplastic polymer is polyphenylsulfone claim 5 , acrylonitrile butadiene styrene claim 5 , polycarbonate claim 5 , polyamide claim 5 , polyetherimide claim 5 , polystyrene claim 5 , or any combination thereof.7. The feedstock of claim 5 , wherein the thermoset polymer is polyvinylether claim 5 , polyacrylate claim 5 , epoxy resin claim 5 , polyurethane claim 5 , phenol-formaldehyde resin claim 5 , melamine resin claim 5 , polyamide claim 5 , polyester claim 5 , or any combination thereof.8. The feedstock of claim 5 , wherein the ...

Method for producing expandable granulates containing polylactic acid

The invention relates to a process for producing expandable pelletized material which comprises polylactic acid which comprises the following steps: a) melting and incorporation by mixing of polylactic acid, one or more further polymers, a diepoxide or polyepoxide, and one or more additives, b) incorporation by mixing of an organic blowing agent into the polymer melt by means of a static or dynamic mixer at a temperature of at least 140° C., c) discharging through a die plate with holes, the diameter of which at the exit from the die is at most 1.5 mm, and d) pelletizing the melt comprising blowing agent directly downstream of the die plate, and under water, at a pressure in the range from 1 to 20 bar. The invention further relates to expandable pelletized material which comprises polylactic acid and which is obtainable by said process.

Pelletized Road Marking Binders and Related Methods

A composition for use as a binder system for road marking formulations and methods for making thereof is disclosed. The binder system is provided as pellets. The method provides for making the pelletized binder system, and mixing the pelletized binder system with fillers and other components, heating the mixed ingredients forming into a molten mixture for applying on a road surface. The pelletized binder system comprises at least a resin and an elastomer in one embodiment; at least a resin and a plasticizer in a second embodiment; and at least a resin, an elastomer, and a plasticizer in a third embodiment. 1. A pelletized binder composition for use in road marking applications , comprising based on total weight of the binder composition:a resin selected from hydrocarbon resins, alkyd resins, and combinations thereof in an amount of 20 to 96 wt. %;an elastomer in an amount of 1 to 40 wt. %; a plasticizer selected from vegetable oils, mineral oils, process oils, phthalates and mixtures, in an amount up to 10 wt. %;', 'a wax in an amount up to 10 wt. %;', 'a pigment in an amount of up to 15 wt. %; and', 'a filler in an amount of up to 50wt. %;, 'an optional component selected fromwherein the resin, the elastomer, and the optional component are combined together as pellets of a homogeneous composition prior to being combined with other components forming the pelletized binder composition for use in road marking compositions.2. The pelletized binder composition of claim 1 , wherein the resin and the elastomer are immiscible claim 1 , for the elastomer to form an insoluble dispersed phase in the resin as a continuous phase.3. The pelletized binder composition of claim 2 , wherein the resin is selected from maleated rosin claim 2 , fumarated rosin claim 2 , acrylated rosin claim 2 , amdidated rosin claim 2 , nitrated rosin claim 2 , chlorinated rosin claim 2 , brominated rosin claim 2 , and mixtures thereof4. The pelletized binder composition of claim 1 , wherein the resin ...

Powder paint composition and method for preparing same

Disclosed is a powder paint composition of and a method for preparing the same. More particularly, the present invention relates to a powder paint composition including a powder paint prepared by physically attaching metallic particles to a powder resin, which exhibits no separation or aggregation of metallic particles when coated and significantly improves metallic texture owing to orientation of the metallic particles, and a method for preparing the same.

METHOD FOR MANUFACTURING MOLDED ARTICLE USING FOOD WASTE

The present invention relates to a method for manufacturing a molded article using food waste, in which food waste is dried, fractioned and ground, after which the processed food waste is mixed with purified water, a preservative, an aromatic agent and a binding agent comprising a food additive, and the mixture is poured into a fixing mold to be compression-molded into various shapes, e.g., cubes. The molded article can substitute for soaps which have been conventionally used for practicing carving so as to prevent resource waste and environmental contamination. The method for manufacturing a molded article using food waste enables a minimal addition of chemicals during molding so as to provide practice materials which are not harmful to the human body. Another purpose of the present invention is to provide a method for manufacturing a molded article using food waste, in which cubes are manufactured by using food waste, the cubes are combined to form a big cube, and small cubes are sequentially removed from a big cube consisting of small cubes, thereby enabling a model to be modified at the users convenience. 1. A method for manufacturing a molded article using food waste , comprising:{'b': '1', '(s) a step wherein food waste is collected;'}{'b': '2', '(s) a step wherein with respect to 1 g of the food waste, 0.01 to 0.5 g of deodorizing agent, 0.01 to 0.5 g of sterilizing agent and 0.01 to 0.5 g of natural antiseptic are added;'}{'b': '3', '(s) a step wherein the mixture is dried using a drier of above 15° C. and a heating film;'}{'b': '4', '(s) a step wherein the particles of the food waste are sorted out to remove impurities;'}{'b': '5', '(s) a step wherein the sorted particles are crushed into sizes of 0.01 mm to 1 mm;'}{'b': '6', '(s) a first mixing step wherein a binding agent containing a food additive is mixed and pasted with the crushed powder;'}{'b': '7', '(s) a second mixing step wherein purified water and an aromatic agent are mixed and pasted with the ...

PROCESS FOR THE PRODUCTION OF AN ELASTOMER AGGLOMERATE COMPOSITION

A process for the production of an elastomer agglomerate composition wherein the process comprises the steps in this order: (a) providing a slurry comprising elastomeric particles having an average particle size of ≤150 nm in water; and (b) forcing the slurry from (a) through an aperture at a flow velocity of at least 500 m/s. The elastomer agglomerate compositions produced via such process demonstrate a particularly desirable high average particle size. 1. A process for the production of an elastomer agglomerate composition wherein the process comprises the steps in this order:(a) providing a slurry comprising elastomeric particles having an average particle size of ≤150 nm in water; and(b) forcing the slurry from (a) through an aperture at a flow velocity of at least 500 m/s.2. The process according to claim 1 , wherein the material flow through the aperture is confined by a flat first surface and a flat second surface together forming a channel.3. The process according to claim 1 , wherein the slurry is introduced at a pressure of ≥40 and 60 MPa.4. The process according to claim 1 , wherein the slurry comprises ≥20.0 wt % of elastomeric particles with regard to the total weight of the slurry.5. The process according to claim 1 , wherein the elastomeric particles are selected from polybutadiene particles claim 1 , poly(styrene-butadiene) particles claim 1 , poly(acrylonitrile butadiene) particles or polybutylacrylate particles.6. The process according to claim 1 , wherein the process is performed using a valve assembly comprising the aperture claim 1 , the valve assembly further comprising a seat claim 1 , a flow channel through which the slurry flows at a certain pressure towards the aperture claim 1 , and a valve subjected to a pressure in the direction opposite the flow direction of the slurry claim 1 , wherein the seat comprises a central opening forming the flow channel claim 1 , and wherein the valve pressure and the pressure of the slurry are arranged such ...

PROCESS FOR PRODUCING FOAMS BASED ON THERMOPLASTIC POLYURETHANES

A process for producing foamed thermoplastic polyurethane particles comprises the steps of a) melting a thermoplastic polyurethane in a first extruder (E), b) injecting a gaseous blowing agent in a second extruder (E), c) impregnating the gaseous blowing agent homogeneously into the thermoplastic polyurethane melt in a third extruder (E), d) extruding the impregnated thermoplastic polyurethane melt through a die plate and granulating the melt in an underwater granulation device under temperature and pressure conditions to form foamed thermoplastic polyurethane particles. 1. A process for producing foamed thermoplastic polyurethane particles , the process comprising:{'b': '1', 'a) melting a thermoplastic polyurethane in a first extruder E,'}{'b': '2', 'b) injecting a gaseous blowing agent in a second extruder E,'}{'b': '3', 'c) impregnating the gaseous blowing agent homogeneously into the thermoplastic pol-yurethane melt in a third extruder E, and'}d) extruding the impregnated thermoplastic polyurethane melt through a die plate and granulating the melt in an underwater granulation device under temperature and pressure conditions to form foamed thermoplastic polyurethane particles.2. The process according to claim 1 , wherein a bulk density of the foamed thermoplastic polyurethane particles formed in step d) ranges from 30 to 250 kg/m3.3. The process according to claim 1 , wherein the gaseous blowing agent comprises CO2 claim 1 , N2 claim 1 , or a combination of CO2 and N2.4132. The process according to claim 1 , wherein a single screw extruder is used as the first extruder E and the third extruder E claim 1 , and a twin extruder is used as the second Extruder E.5. The process according to claim 1 , wherein the water in the underwater granulation device has a pressure in the range from 1 to 20 bar and a temperature in the range from 10 to 50° C. This invention relates to a process for production of expanded pellets from a polymer melt comprising a blowing agent. ...

Optical absorbing thermoplastic polymer particles and methods of production and uses thereof

Optical absorber-containing thermoplastic polymer particles (OACTP particles) may be produced by methods that comprise: mixing a mixture comprising a thermoplastic polymer, a carrier fluid that is immiscible with the thermoplastic polymer, and optionally an emulsion stabilizer at a temperature greater than a melting point or softening temperature of the thermoplastic polymer and at a shear rate sufficiently high to disperse the thermoplastic polymer in the carrier fluid; cooling the mixture to below the melting point or softening temperature of the thermoplastic polymer to form solidified particles comprising the thermoplastic polymer; separating the solidified particles from the carrier fluid; and exposing the solidified particles to an optical absorber to produce the OACTP particles.

Melt Emulsion Extrusion Methods for Producing Thermoplastic Polymer Particles

A method of making thermoplastic polymer particles may include mixing in an extruder a mixture comprising a thermoplastic polymer and a carrier fluid that is immiscible with the thermoplastic polymer at a temperature greater than a melting point or softening temperature of the thermoplastic polymer and at a shear rate sufficiently high to disperse the thermoplastic polymer in the carrier fluid; cooling the mixture to below the melting point or softening temperature of the thermoplastic polymer to form solidified particles comprising thermoplastic polymer particles having a circularity of 0.90 or greater and that comprise the thermoplastic polymer; and separating the solidified particles from the carrier fluid. 1. A method comprising:mixing in an extruder a mixture comprising a thermoplastic polymer and a carrier fluid that is immiscible with the thermoplastic polymer at a temperature greater than a melting point or softening temperature of the thermoplastic polymer and at a shear rate sufficiently high to disperse the thermoplastic polymer in the carrier fluid;cooling the mixture to below the melting point or softening temperature of the thermoplastic polymer to form solidified particles comprising thermoplastic polymer particles having a circularity of 0.90 or greater and that comprise the thermoplastic polymer; andseparating the solidified particles from the carrier fluid.2. The method of claim 1 , wherein the mixture further comprises an emulsion stabilizer claim 1 , and wherein the solidified particles further comprise the emulsion stabilizer associated with an outer surface of the solidified particles.3. The method of claim 2 , wherein the emulsion stabilizer comprises nanoparticles claim 2 , and wherein at least some of the nanoparticles are embedded in the outer surface of the solidified particles.4. The method of claim 2 , wherein at least some of the solidified particles have a void therein comprising the nanoparticles at a void/thermoplastic polymer ...

GLASS FIBER REINFORCED THERMOPLASTIC COMPOSITIONS WITH GOOD MECHANICAL PROPERTIES

The invention relates to compositions for the production of thermoplastic moulding materials, where the compositions comprise the following constituents: 1. A compositions for the production of thermoplastic moulding materials comprising:A) at least one polymer selected from the group consisting of aromatic polycarbonate, aromatic polyester carbonate and polyester,B) at least one anhydride-functionalized ethylene-α-olefin-copolymer or anhydride-functionalized ethylene-α-olefin terpolymer with a weight-average molar mass Mw determined by high-temperature gel permeation chromatography using ortho-dichlorobenzene as solvent against polystyrene standards of 50000 to 500000 g/mol,C) at least one rubber-modified graft polymer, andD) glass fibers.2. The composition of claim 1 , wherein component B has from 2 to 40 mol % of α-olefin units and from 60 to 98 mol % of ethylene units claim 1 , based on the entirety of α-olefin and ethylene.3. The composition of claim 1 , wherein the anhydride content of component B is from 0.1 to 3.0% by weight.4. The composition of claim 1 , wherein component B is a maleic-anhydride-functionalized copolymer of ethylene and 1-octene.5. The composition of claim 1 , wherein component C is at least one graft polymer ofC.1 5 to 95% by weight of at least one vinyl monomer onC.2 5 to 95% by weight of a one or more elastomeric graft bases with glass transition temperatures below −10° C., wherein the glass transition temperature is determined by means of differential scanning calorimetry according to standard DIN EN 61006 at a heating rate of 10 K/min. with definition of the glass transition temperature as the mid-point temperature.6. The composition of claim 5 , wherein component C.2 is selected from the group consisting of diene rubbers claim 5 , styrene-butadiene block copolymer rubbers claim 5 , acrylate rubbers claim 5 , silicone rubbers claim 5 , silicone/acrylate composite rubbers and ethylene/propylene/diene rubbers.7. The composition of claim ...

Resin powder, device for solid freeform fabrication object, and method of manufacturing solid freeform fabrication object

A resin powder contains a resin, wherein the proportion of fine powder having a number diameter of 40 percent or less of a mean number diameter Mn of the resin powder is 30 percent or less in the resin powder.

ATAZANAVIR SULFATE FORMULATIONS WITH IMPROVED pH EFFECT

Disclosed are compressed tablets containing atazanavir sulfate and an acidifying agent, optionally with another active agent, e.g., anti-HIV agents, and optionally with precipitation retardant agents. Also disclosed are processes for making the tablets, and methods of treating HIV.

Polypropylene Resin Pellet and Method for Preparing the Same

The present invention provides a polypropylene resin pellet that is environment friendly, has excellent workability, and enables preparation of fine denier fiber, and a method for preparing the same. 1. A polypropylene resin pellet comprising homopolypropylene and fulfilling the following requirements:melt index measured under load of 2.16 kg at 230° C. according to ASTM D1238-: greater than 500 g/10 min,melting point: 155° C. or more,xylene soluble: 1 wt % or less, anddraw diameter measured at a temperature of 170° C. and drawing speed of 10 mm/s using Discovery Hybrid Rheometer: 0.3 mm or less.2. The polypropylene resin pellet according to claim 1 , wherein the melt index of the polypropylene resin pellet claim 1 , measured under load of 2.16 kg at 230° C. according to ASTM D1238 claim 1 , is 1500 g/10 min or less claim 1 , and the melting point of the polypropylene resin pellet is 170° C. or less.3. The polypropylene resin pellet according to claim 1 , wherein molecular weight distribution of the polypropylene resin pellet is 3 or less.4. The polypropylene resin pellet according to claim 1 , wherein molecular weight distribution of the polypropylene resin pellet is 2.0 to 2.4 claim 1 ,weight average molecular weight of the polypropylene resin pellet is 60,000 g/mol or less, andnumber average molecular weight of the polypropylene resin pellet is 16,000 to 25,000 g/mol.5. The polypropylene resin pellet according to claim 1 , wherein crystallization temperature of the polypropylene resin pellet is 115° C. or more.6. The polypropylene resin pellet according to claim 1 , wherein the polypropylene resin pellet further comprises claim 1 , based on the total weight of the resin claim 1 , 0.01 to 1 wt % of an organometalic compound; and 0.01 to 1 wt % of a phenolic antioxidant claim 1 , as an antioxidant claim 1 , andthe mixing weight ratio of the organimetallic compound and phenolic antioxidant is 1:10 to 1:2.7. The polypropylene resin pellet according to claim 6 , ...

Thermally stabilized compositions

The present invention relates to heat-stabilized polyamide 66-based compositions containing reinforcing materials based on at least one semiaromatic polyamide, at least one copper halide and at least one polyhydric alcohol, to molding materials producible therefrom and in turn to injection-molded, blow-molded or extruded articles of manufacture producible therefrom.

PROCESS FOR ROCKWOOL DERIVATIVE BRIQUETTES

A process for reusing rockwool production by-product into marketable bricks is disclosed. The process includes, in a brick forming facility, sequentially dumping incoming rockwool production by-product in a mixing bunker in a first direction, acquiring the rockwool production by-product from the mixing bunker in a second direction, and forming bricks with the mixed rockwool production by-product. Acquiring the rockwool production by-product in the second direction mixes the rockwool production by-product from two non-sequential dumps. 1. A process for reusing rockwool production by-product , the process comprising:in a brick forming facility, sequentially dumping incoming rockwool production by-product in a mixing bunker in a first direction;acquiring the rockwool production by-product from the mixing bunker in a second direction, wherein the acquiring mixes the rockwool production by-product from two non-sequential dumps; andforming bricks with the mixed rockwool production by-product.2. The process of claim 1 , wherein the rockwool production by-product comprises rockwool waste comprising shot.3. The process of claim 2 , wherein the brick forming facility is located proximately to a rockwool production facility.4. The process of claim 2 , wherein sequentially dumping the incoming rockwool waste comprises dumping the rockwool waste sequentially in a first column; andupon completion of the first column, dumping the rockwool waste sequentially in a second column located next to the first column.5. The process of claim 2 , wherein sequentially dumping the incoming rockwool waste comprises dumping the rockwool waste sequentially in a first column; andsubsequent to completion of the first column, dumping the rockwool waste sequentially in a plurality of successive columns located next to the first column.6. The process of claim 2 , wherein acquiring the rockwool waste from the mixing bunker in the second direction comprises acquiring the rockwool waste in the second ...

Conductive High Strength Extrudable Ultra High Molecular Weight Polymer Graphene Oxide Composite

The present invention includes an injection moldable/extrudable composite that preserves at least 80% or enhances the primary physical properties of compression molded polymer, the composite comprising, e.g., an Ultra High Molecular Weight Polyethylene (UHMWPE) and graphene/graphite oxide or graphene oxide, with or without polypropylene. 1. An injection moldable/extrudable composite that preserves at least 80% or enhances the primary physical properties of compression molded polymer , the composite comprising a non-extrudable or poorly-extrudable polymer and graphene/graphite oxide or graphene oxide.2. The composite of claim 1 , wherein the non-extrudable or poorly-extrudable polymer is selected from olefin fibers claim 1 , Ultra High Molecular Weight Polyethylene (UHMWPE) claim 1 , cross-linked polyethylene (PEX) claim 1 , high-density polyethylene (HDPE) claim 1 , polypropylene claim 1 , linear low-density polyethylene (LLDPE) claim 1 , low-density polyethylene (LDPE) claim 1 , medium-density polyethylene (MDPE) claim 1 , para-aramid fibers claim 1 , and/or polyoxazole fibers.3. The composite of claim 2 , wherein the physical properties of a compression molded UHMWPE claim 2 , and a resistivity less than 1011 Ohm-cm.4. The composite of claim 2 , wherein the UHMWPE has a molecular weight between 500 claim 2 ,000 and 16 claim 2 ,000 claim 2 ,000 Daltons or between 2 claim 2 ,000 claim 2 ,000 and 8 claim 2 ,000 claim 2 ,000 Daltons.5. The composite of claim 1 , wherein the composite has a graphene oxide is 0.1 wt % claim 1 , 0.5 wt % claim 1 , 1.0 wt % claim 1 , 1.25 wt % claim 1 , 1.5 wt % claim 1 , 1.75 wt % claim 1 , 2.0 wt % claim 1 , 2.25 w % claim 1 , 2.5 w % claim 1 , 2.75 wt % claim 1 , 3.0 wt % claim 1 , 3.25 wt % claim 1 , 3.5 wt % claim 1 , 3.75 wt % claim 1 , 4.0 wt % claim 1 , 4.25 wt % claim 1 , 4.5 wt % claim 1 , 4.75 wt % claim 1 , 5.0 wt % claim 1 , 6.0 wt % claim 1 , 7.0 wt % claim 1 , 8.0 wt % claim 1 , 9.0 wt % claim 1 , 10 wt % claim 1 , 11 wt % ...

ETHYLENE-VINYL ALCOHOL COPOLYMER COMPOSITION, PELLETS, AND MULTILAYER STRUCTURE

An ethylene-vinyl alcohol copolymer composition is substantially free from coloration, and contains: (A) an ethylene-vinyl alcohol copolymer; (B) a polyamide resin; and (C) an iron compound; wherein the iron compound (C) is present in an amount of 0.01 to 20 ppm on a metal basis based on the weight of the ethylene-vinyl alcohol copolymer composition. 1. An ethylene-vinyl alcohol copolymer composition comprising:(A) an ethylene-vinyl alcohol copolymer;(B) a polyamide resin; and 'wherein the iron compound (C) is present in an amount of 0.01 to 20 ppm on a metal basis based on a weight of the ethylene-vinyl alcohol copolymer composition.', '(C) an iron compound;'}2. The ethylene-vinyl alcohol copolymer composition according to claim 1 , wherein a weight ratio of the ethylene-vinyl alcohol copolymer (A) to the polyamide resin (B) is (A)/(B)=99/1 to 10/90.3. Pellets comprising the ethylene-vinyl alcohol copolymer composition according to .4. A multilayer structure comprising a layer that comprises the ethylene-vinyl alcohol copolymer composition according to . This application is a continuation of International Application No. PCT/JP2018/024304, filed on Jun. 27, 2018, which claims priority to Japanese Patent Application No. 2017-124965, filed on Jun. 27, 2017, the entire contents of each of which being hereby incorporated by reference.The present disclosure relates to an ethylene-vinyl alcohol copolymer composition containing an ethylene-vinyl alcohol copolymer (hereinafter referred to as “EVOH resin”), and further relates to pellets and to a multilayer structure. More specifically, the present disclosure relates to an EVOH resin composition substantially free from coloration and viscosity increase with time, and further relates to pellets formed from the EVOH resin composition and to a multilayer structure including a layer formed from the EVOH resin composition.The EVOH resin is excellent in transparency, gas barrier properties such as oxygen barrier property, aroma ...

Composition, pellet, and processes of making polypropylene foams

The present disclosure provides improved polypropylene-based compositions (formulations). The present disclosure further provides improved micro-pellets (non-foamed), which comprise the improved polypropylene-based composition. The improved polypropylene-based compositions have a reduced melting point (Tm) for the polypropylene resin while maintaining the stiffness of the micro-pellets for use in foaming procedures. Also, the disclosure further provides a new, dry method of preparing expanded polypropylene beads from micro-pellets without a liquid medium or steam, which thereby simplifies the production process and saves both energy and production costs.

SILICON PARTICLES FOR BATTERY ELECTRODES

Silicon particles for active materials and electro-chemical cells are provided. The active materials comprising silicon particles described herein can be utilized as an electrode material for a battery. In certain embodiments, the composite material includes greater than 0% and less than about 90% by weight of silicon particles. The silicon particles have an average particle size between about 0.1 μm and about 30 μm and a surface including nanometer-sized features. The composite material also includes greater than 0% and less than about 90% by weight of one or more types of carbon phases. At least one of the one or more types of carbon phases is a substantially continuous phase. 1. A composite material comprising:greater than 0% and less than about 90% by weight of silicon particles, the silicon particles having an average particle size between about 0.1 μm and about 30 μm and a surface comprising nanometer-sized features; andgreater than 0% and less than about 90% by weight of one or more types of carbon phases, wherein at least one of the one or more types of carbon phases is a substantially continuous phase.2. The composite material of claim 1 , wherein the features comprise silicon.3. The composite material of claim 1 , wherein the nanometer-sized features comprise an average feature size between about 1 nm and about 1 μm.4. The composite material of claim 1 , wherein the average particle size of the silicon particles is between about 1 μm and about 20 μm.5. The composite material of claim 1 , wherein the average particle size of the silicon particles is between about 5 μm and about 20 μm.6. The composite material of claim 4 , wherein the average particle size of the silicon particles is between about 1 μm and about 10 μm.7. The composite material of claim 1 , wherein the average particle size of the silicon particles is between about 0.5 μm and about 2 μm.8. The composite material of claim 1 , wherein the silicon particles further comprise an average surface ...

PELLET BASED TOOLING AND PROCESS FOR BIODEGRADEABLE COMPONENT

An example method of forming a biodegradable component includes extruding a mixture of biodegradable material and water through a die. The method further includes dividing the extruded mixture to form a plurality of biodegradable pellets. The method further includes forming the plurality of biodegradable pellets into a component. The water acts as a binding agent to bind the plurality of biodegradable pellets to one another. 1. A method of forming a biodegradable component , the method comprising:extruding a mixture of biodegradable material and water through a die;dividing the extruded mixture to form a plurality of biodegradable pellets; andforming the plurality of biodegradable pellets into a component, wherein the water acts as a binding agent to bind the plurality of biodegradable pellets to one another.2. The method of claim 1 , further comprising cooling the plurality of biodegradable pellets to a temperature below the freezing temperature of water prior to the forming step.3. The method of claim 2 , wherein the cooling reduces a tackiness of the plurality of biodegradable pellets.4. The method of claim 2 , wherein the cooling is accomplished by exposing the plurality of biodegradable pellets to a liquid nitrogen environment.5. The method of claim 2 , wherein the plurality of biodegradable pellets are heated to a temperature above the freezing temperature of water during the forming step.6. The method of claim 5 , wherein the heating and forming is done in a mold.7. The method of claim 1 , wherein the biodegradable material is a starch-based biodegradable material.8. The method of claim 7 , further comprising adding an additive to the starch-based biodegradable material prior to the extruding step claim 7 , wherein the additive enhances the expansion properties of the starch-based biodegradable material.9. The method of claim 7 , wherein the additive is selected from the group of an acid/base mixture claim 7 , heat-expandable thermoplastic microspheres claim ...

Polymer pelletization via melt fracture

Polymer pellets are formed using air to influence the separation of polymer from a polymer melt. In accordance with one or more embodiments, a polymer material is extruded through a nozzle to form a polymer melt extending from the nozzle. A non-uniform thickness is generated in the polymer melt using a gas or gasses to apply a drag force to the polymer melt. This drag force reduces a thickness of a portion of the polymer melt adjacent the nozzle, and the polymer melt is fractured into discrete droplets at the reduced thickness. The discrete droplets are then solidified to form pellets.

RECYCLED PLASTIC AGGREGATE FOR USE IN CONCRETE

The synthetic recycled plastic aggregate for use in concrete is a composite material containing between 30% and 50% by weight shredded recycled plastic, the balance being a filler embedded in a matrix of the recycled plastic. The recycled plastic includes polyethylene terephthalate (PET). The filler can include dune sand, fly ash and quarry fines. The synthetic recycled plastic aggregate is best used to make concrete with a water-to-cement ratio of at least 0.5. 1. A synthetic recycled plastic aggregate (RPA) for use in concrete , comprising:shredded recycled plastic, the shredded recycled plastic being from about 30% to about 50% by weight of the synthetic recycled plastic aggregate (RPA), anda filler, the filler being embedded in a matrix of the shredded recycled plastic and providing the balance of the synthetic recycled plastic aggregate (RPA),wherein the filler has a maximum particle size of 0.15 mm,wherein the shredded recycled plastic includes polyethylene terephthalate (PET), and wherein the shredded recycled plastic has a maximum particle size of 2.36 mm.2. The synthetic recycled plastic aggregate for use in concrete according to claim 1 , wherein the filler includes granular waste selected from the group consisting of dune sand claim 1 , fly ash claim 1 , and quarry fines.34-. (canceled)5. The synthetic recycled plastic aggregate for use in concrete according to claim 1 , wherein the synthetic recycled plastic aggregate (RPA) is shredded and has a maximum particle size of 10 mm.6. The synthetic recycled plastic aggregate for use in concrete according to claim 1 , wherein the synthetic recycled plastic aggregate (RPA) includes about 50% by weight polyethylene terephthalate (PET) and about 50% by weight filler.7. The synthetic recycled plastic aggregate for use in concrete according to claim 1 , wherein the synthetic recycled plastic aggregate (RPA) includes about 30% by weight polyethylene terephthalate (PET) and about 70% by weight filler.820-. (canceled) ...

METHOD OF PRODUCING POLYMER MICROPARTICLES

A method of producing polymer particles includes, in a system in which a polymer A and a polymer B are dissolved in and mixed with an organic solvent to undergo phase separation into two phases which are a solution phase containing the polymer A as a major component and a solution phase containing the polymer B as a major component, continuously adding an emulsion including the polymer A, the polymer B and the organic solvent, and a poor solvent for the polymer A to a vessel continuously to allow the polymer A to precipitate; and separating polymer A particles from the vessel continuously. 19.-. (canceled)10. A method of producing polymer particles comprising , in a system in which a polymer A and a polymer B are dissolved in and mixed with an organic solvent to undergo phase separation into two phases which are a solution phase containing said polymer A as a major component and a solution phase containing said polymer B as a major component , continuously adding an emulsion comprising said polymer A , said polymer B and said organic solvent , and a poor solvent for said polymer A to a vessel continuously to allow said polymer A to precipitate; and separating polymer A particles from said vessel continuously.11. The method according to claim 10 , wherein said emulsion formed by continuously supplying said polymer A claim 10 , said polymer B claim 10 , and said organic solvent to a mixing apparatus is added to said vessel.12. The method according to claim 10 , wherein said emulsion formed by continuously supplying each of a liquid obtained by dissolving said polymer A in said organic solvent and a liquid obtained by dissolving said polymer B in said organic solvent to said mixing apparatus is added to said vessel.13. The method according to claim 10 , wherein said organic solvents in each of said phases when said phase separation into two phases occurs are identical.14. The method according to claim 10 , wherein said poor solvent is continuously added from two or ...

Melt-formable ethylene-vinyl alcohol copolymer composition, pellets, and multilayer structure

A melt-formable ethylene-vinyl alcohol copolymer composition and a multilayer structure are substantially free from heat coloration. The melt-formable ethylene-vinyl alcohol copolymer composition contains: (A) an ethylene-vinyl alcohol copolymer; (B) an alkali earth metal compound; and (C) an iron compound; wherein the iron compound (C) is present in an amount of 0.01 to 20 ppm on a metal basis based on the weight of the ethylene-vinyl alcohol copolymer composition.

ETHYLENE-VINYL ALCOHOL COPOLYMER COMPOSITION, PELLETS, AND MULTILAYER STRUCTURE

An ethylene-vinyl alcohol copolymer composition contains: (A) an ethylene-vinyl alcohol copolymer including two or more types of ethylene-vinyl alcohol copolymers having different ethylene structural unit contents; and (B) an iron compound; wherein the iron compound (B) is present in an amount of 0.01 to 5 ppm on a metal basis based on the weight of the ethylene-vinyl alcohol copolymer composition. The ethylene-vinyl alcohol copolymer composition is substantially free from coloration and excellent in heat stability. 1. An ethylene-vinyl alcohol copolymer composition comprising:(A) an ethylene-vinyl alcohol copolymer including two or more ethylene-vinyl alcohol copolymers having different ethylene structural unit contents; and(B) an iron compound;wherein the iron compound (B) is present in an amount of 0.01 to 5 ppm on a metal basis based on a weight of the ethylene-vinyl alcohol copolymer composition.2. The ethylene-vinyl alcohol copolymer composition according to claim 1 ,wherein a difference in ethylene structural unit content between an ethylene-vinyl alcohol copolymer having a highest ethylene structural unit content and an ethylene-vinyl alcohol copolymer having a lowest ethylene structural unit content out of the two or more ethylene-vinyl alcohol copolymers in the ethylene-vinyl alcohol copolymer (A) is not less than 2 mol %.3. The ethylene-vinyl alcohol copolymer composition according to claim 1 ,wherein the ethylene-vinyl alcohol copolymer (A) includes:(A1) an ethylene-vinyl alcohol copolymer having an ethylene structural unit content of less than 35 mol %; and(A2) an ethylene-vinyl alcohol copolymer having an ethylene structural unit content of not less than 35 mol %.4. The ethylene-vinyl alcohol copolymer composition according to claim 3 ,wherein a weight ratio of the ethylene-vinyl alcohol copolymer (A1) to the ethylene-vinyl alcohol copolymer (A2) is (A1)/(A2)=90/10 to 10/90.5. Pellets comprising the ethylene-vinyl alcohol copolymer composition ...

SMOOTH MILLED POLYMERIC FOAM ARTICLE

An article includes an extruded polystyrene foam that is characterized by being a singular polymer foam that is free of halogenated blowing agents, having a milled primary surface, having a width of 750 millimeters or more, and further characterized by having a ρ(CST/CSP) value that is 50 kilograms per cubic meter or less and a milled primary surface. 1. An article comprising an extruded polystyrene foam , the extruded polystyrene foam characterized by being a singular polymer foam that is free of halogenated blowing agents , having a milled primary surface , having a width of 750 millimeters or more , and further characterized by having a ρ(CST/CSP) value that is 50 kilograms per cubic meter or less and a milled primary surface where ρ corresponds to the extruded polystyrene foam density , CST corresponds to compressive strength of the foam in its thickness dimension and CSP corresponds to compressive strength of the foam in a dimension perpendicular to the thickness dimension of the foam.2. The article of claim 1 , further characterized by the extruded polystyrene foam having a density that is 36 kilograms per cubic meter or more and 48 kilograms per cubic meter or less.3. The article of claim 1 , further characterized by the extruded polystyrene foam having a thickness of 15 millimeters or more and 220 millimeters or less.4. The article of claim 1 , further characterized by the extruded polystyrene foam having a CSV of greater than 200 kiloPascals.5. The article of claim 1 , further characterized by the polystyrene foam being polystyrene homopolymer foam.7. The process of claim 6 , further characterized by the blowing agent package comprising water claim 6 , isobutane and ethanol.8. The process of claim 6 , further characterized by the styrene polymer being polystyrene homopolymer.9. The process of claim 6 , further characterized by preparing the polymer foam in an absence of dimethyl ether.10. The process of claim 6 , where the blowing agent package comprises ...

PRODUCTION METHOD FOR MODIFIED VINYL ALCOHOL-BASED POLYMER PARTICLES AND PARTICLES OBTAINED USING SAME

A method of producing modified vinyl alcohol-based polymer particles, includes mixing vinyl alcohol-based polymer particles with a mixed medium containing unsaturated carboxylic acid, an acid catalyst, and water, wherein, by mixing the vinyl alcohol-based polymer particles with the mixed medium, the vinyl alcohol-based polymer particles are reacted with the unsaturated carboxylic acid to obtain modified vinyl alcohol-based polymer particles containing a vinyl ester unit represented by a formula (2) below, having a vinyl alcohol unit content based on the total constitutional units from 95 to 99.99 mol %, and having an average particle diameter from 50 to 2000 μm. The production method does not cause the problem of the residual sulfur content derived from a liquid medium used for reaction and is also capable of modifying the vinyl alcohol-based polymer particles while maintaining the particle shape. 2. The method according to claim 1 , wherein the modified vinyl alcohol-based polymer particles have a specific surface area of from 0.01 to 1.0 m/g.3. The method according to claim 1 , wherein the mixed medium has a water content of from 1 to 30 mass %.4. The method according to claim 1 , wherein the mixed medium further comprises acetic acid.5. The method according to claim 1 , wherein Y denotes a hydrogen atom.6. The method according to claim 1 , wherein X denotes a carbon-carbon bond.7. The method according to claim 1 , further comprising washing the modified vinyl alcohol-based polymer particles.9. The particles according to claim 8 , wherein a ratio of three or more consecutive vinyl ester units to the total vinyl ester units is 10 mol % or less in the modified vinyl alcohol-based polymer.10. The particles according to claim 8 , wherein a yellow index (YI) measured in accordance with ASTM D1925 is 50 or less.11. The particles according to claim 8 , wherein a content of the vinyl ester unit based on the total constitutional units is from 0.01 to 5 mol %.12. The ...

A METHOD FOR THE COMBINED PROCESSING OF AT LEAST TWO POLYMER MELTS

The invention relates to a method for the combined processing of at least two polymer melts selected from the group consisting of (M), (M) and (M), wherein (M) is a polymer melt comprising a terephthalate polyester (A), (M) is a polymer melt comprising a copolyester (A) on the basis of terephthalic acid, at least one aliphatic, ω-dicarboxylic acid and at least one aliphatic 1,ω-diol, and (M) is a polymer melt 0 comprising a copolyester (A) on the basis of terephthalic acid, at least one polytetramethylene glycol and at least one aliphatic 1,ω-diol. The method comprises the alternating processing of the at least two polymer melts into at least one product selected from the group consisting of pellets (P), fibers (P), expanded particles (P), preforms (P) and articles (P). 1123. A method for a combined processing of at least two polymer melts selected from the group consisting of (M) , (M) , and (M) , wherein{'b': 1', '1, '(M) is a polymer melt comprising a terephthalate polyester (A),'}{'b': 2', '2, '(M) is a polymer melt comprising a copolyester (A) on the basis of terephthalic acid, at least one aliphatic 1,ω-dicarboxylic acid, and at least one aliphatic 1,ω-diol, and'}{'b': 3', '3, '(M) is a polymer melt comprising a copolyester (A) on the basis of terephthalic acid, at least one polytetramethylene glycol and at least one aliphatic 1,ω-diol, wherein'}{'b': 1', '2', '3', '4', '5, 'comprising alternating processing of the at least two polymer melts into at least one product selected from the group consisting of pellets (P), fibres (P), expanded particles (P), preforms (P), and articles (P).'}212311. The method according to claim 1 , wherein at least one polymer melt of the at least two polymer melts selected from the group consisting of (M) claim 1 , (M) claim 1 , and (M) is processed into pellets (P) claim 1 , wherein the processing into pellets (P) comprises:{'b': 1', '1, 'a) supplying the at least one polymer melt to a device (D), wherein the device (D) comprises ...

A GEL AND CUSHIONING MATERIAL BASED ON THERMOPLASTIC ELASTOMERS AND METHOD OF MAKING THEREOF

A gel material made of thermoplastic elastomers. The thermoplastic elastomers content in the gel material is very less. Even after the reduction of thermoplastic elastomers, the gel material has superior properties. The gel material of the disclosure is cost effective and has good strength. The present disclosure also relates to a cushioning material made of gel of thermoplastic elastomers. Furthermore, the present disclosure also relates to a process for making the gel and the cushioning material. 1. An elastomer-based gel material comprising:15-35 wt % of a thermoplastic elastomer,65-85 wt % of a mineral oil,1-10 wt % of a polypropylene, and0.5-4 wt % of azodicarbonamide.2. The elastomer-based gel material as claimed in claim 1 , wherein the thermoplastic elastomer is A-B-A type thermoplastic elastomer.3. The elastomer-based gel material as claimed in claim 1 , wherein A represents a crystalline polymer such as alkenylarene polymer and B represents elastomeric polymer such as polyolefins.4. The elastomer-based gel material as claimed in claim 1 , wherein the alkenylarene polymer is polystyrene.5. The elastomer-based gel material as claimed in claim 1 , wherein the thermoplastic elastomer is styrene-[ethylene-(ethylene-propylene)]-styrene block copolymer.6. The elastomer-based gel material as claimed in claim 1 , wherein the polyolefins is polyethylene claim 1 , polypropylene or polybutylene or combination thereof.7. The elastomer-based gel material as claimed in claim 1 , wherein the polypropylene is a homopolymer polypropylene and/or copolymer propylene.8. The elastomer-based gel material as claimed in claim 1 , wherein the gel material additionally comprises filler in the range of 1-10 wt % and antioxidant in the range of 0.05-0.5 wt %.9. The elastomer-based gel material as claimed in claim 3 , wherein the fillers are selected from the group consisting of precipitated silica claim 3 , china clay and/or calcium carbonate.10. The elastomer-based gel composition as ...

Glutathione and Acetaminophen Composition and Preparation Method Thereof

A pharmaceutical composition of glutathione and acetaminophen and preparation method thereof. The active ingredients of the composition include glutathione with composition ration of 0.1%˜99.9% and acetaminophen with composition ratio of 99.9%˜0.1%. The further purpose of the invention is to prepare glutathione and acetaminophen composition (raw materials) into various pharmaceutically acceptable dosage forms, such as tablets, sustained/controlled release preparations, capsules, pills, syrups, films, granules, oral solutions, oral suspensions, oral emulsions and oral powders. The beneficial effects of the invention is reflected in that glutathione and acetaminophen combination can effectively prevent the liver cell damage and necrosis caused by acetaminophen overdose and is strongly in favor of cancer pain relief and chemotherapy. 1. A glutathione and acetaminophen composition , comprising active ingredients: Glutathione with composition ration of 0.1%˜99.9% , andAcetaminophen with composition ratio of 99.9%˜0.1%The glutathione and acetaminophen composition is in pharmaceutically acceptable dosage form such as tablets, sustained/controlled release preparations, capsules, pills, syrups, films, granules, oral solutions, oral suspensions, oral emulsions and oral powders.2. The composition according to claim 1 , wherein the tablet of glutathione and acetaminophen composition is composed of the following integrates; the ratio of each integrate amount to the total amount is described as follows:Acetaminophen: 35%˜45%Reduced Glutathione: 10%˜15%Starch: 5%˜8%Sodium Dodecyl Sulfate: 0.005%˜0.01%Stearic Acid: 5%˜10%Cetyl Alcohol: 5%˜10%Polyvidone (PVP): 2.5%˜5%Microcrystalline Cellulose: 5%˜10%Micropowder Silica Gel: 0.6%˜1%Lactose: 5%˜8%Talcum Powder: 3%˜5%10% Starch Paste: 5%˜15%Magnesium Stearate: 0.5%˜1%3. The composition according to claim 2 , wherein the tablets of glutathione and acetaminophen composition are prepared through the following steps:a. Dissolve glutathione ...

Powdered polyurethane urea resin composition for slush molding and manufacturing process therefor

Provided are: a powdered material for slush molding; and a manufacturing process therefor. The powdered material is less odorous, exhibits excellent powder fluidity, and does not suffer from troubles resulting from the sliding-down or agglomeration of a pigment even when the resin particles have been pigmented on the surfaces thereof. Thus, the powdered material ensures high productivity. The powdered material is a powdered polyurethane urea resin composition which comprises (D) a polyurethane urea resin that has a total content of bimolecular condensate of acetone, bimolecular condensate of methyl ethyl ketone, and bimolecular condensate of methyl isobutyl ketone of 1,000 ppm or less and (N) an additive, wherein the polyurethane urea resin (D) takes the form of thermoplastic polyurethane urea resin particles (P) that have a volume-mean particle diameter of 20 to 500 μm and that have protrusions and recesses on the surfaces. The powdered polyurethane urea resin composition is manufactured by a manufacturing process which includes a step of mixing (A) an isocyanato-terminated urethane prepolymer with (B) an alicyclic diamine and/or an aliphatic diamine in an aqueous medium by stirring to form the resin particles (P).

COMPOSITION FOR LOW SPECIFIC GRAVITY MOLDED FOAM AND METHOD FOR PRODUCING MOLDED FOAM USING THE COMPOSITION

Provided is a composition for a low specific gravity molded foam. The composition includes at least one polymer component selected from the group consisting of a peroxide-crosslinkable thermoplastic resin, a peroxide-crosslinkable rubber and a peroxide-crosslinkable thermoplastic elastomer, thermally expandable microspheres, and an organic peroxide crosslinking agent. 1. A method for producing a low specific gravity molded foam , comprising: providing a foamable composition comprising a mixture of at least one polymer component selected from the group consisting of a peroxide-crosslinkable thermoplastic resin , a peroxide-crosslinkable rubber and a peroxide-crosslinkable thermoplastic elastomer , thermally expandable microspheres , and an organic peroxide crosslinking agent; introducing the foamable composition into a mold for producing a molded foam; raising the temperature of the foamable composition to at least the expansion start temperature (T) of the thermally expandable microspheres to expand the foamable composition in the mold; forming a molded foam in a state in which the foamable composition is expanded to fill the mold; and releasing the molded foam from the mold.2. The method according to claim 1 , wherein the foamable composition is prepared by extrusion of the mixture.3. The method according to claim 1 , wherein the foamable composition is in the form of pellets claim 1 , rods or sheets.4. The method according to claim 1 , wherein the foamable composition is introduced in an amount to fill 50% or less of the volume of the mold.5. The method according to claim 1 , wherein the foamable composition introduced into the mold remains unfoamed or is only slightly foamed and the specific gravity of the only slightly foamed foamable composition is 0.7 to 0.9.6. The method according to claim 1 , wherein the temperature of the foamable composition is raised by directly or indirectly heating the mold with a heat source.7. The method according to claim 6 , wherein ...

ETHYLENE-VINYL ALCOHOL COPOLYMER COMPOSITION, ETHYLENE-VINYL ALCOHOL COPOLYMER COMPOSITION FOR MELT FORMING, PELLETS, AND MULTILAYER STRUCTURE

An ethylene-vinyl alcohol copolymer composition contains: (A) an ethylene-vinyl alcohol copolymer; (B) a long Periodic Table 4th-period d-block metal compound; and (C) an iron compound; wherein the iron compound (C) is present in an amount of 0.01 to 5 ppm on a metal basis based on the weight of the ethylene-vinyl alcohol copolymer composition. The ethylene-vinyl alcohol copolymer composition exhibits improved impact resistance and heat stability (color tone deterioration-suppressing effect and coloration-suppressing effect). 1. An ethylene-vinyl alcohol copolymer composition comprising:(A) an ethylene-vinyl alcohol copolymer;(B) a compound of a long Periodic Table 4th-period d-block metal; and 'wherein the iron compound (C) is present in an amount of 0.01 to 5 ppm on a metal basis based on a weight of the ethylene-vinyl alcohol copolymer composition.', '(C) an iron compound;'}2. The ethylene-vinyl alcohol copolymer composition according to claim 1 , wherein the long Periodic Table 4th-period d-block metal compound (B) is present in an amount of 0.1 to 500 ppm on a metal basis based on the weight of the ethylene-vinyl alcohol copolymer composition.3. The ethylene-vinyl alcohol copolymer composition according to claim 1 , wherein a weight ratio of the amount of the long Periodic Table 4th-period d-block metal compound (B) on a metal basis to the amount of the iron compound (C) on a metal basis is 0.02 to 50 claim 1 ,000.4. The ethylene-vinyl alcohol copolymer composition according to claim 1 , wherein the long Periodic Table 4th-period d-block metal compound (B) is a zinc compound.5. The ethylene-vinyl alcohol copolymer composition according to claim 1 , wherein the long Periodic Table 4th-period d-block metal compound (B) is a carboxylate of the long Periodic Table 4th-period d-block metal.6. An ethylene-vinyl alcohol copolymer composition for melt forming claim 1 , which comprises the ethylene-vinyl alcohol copolymer composition according to .7. Pellets comprising ...

FOAMS BASED ON THERMOPLASTIC POLYURETHANES

Expandable thermoplastic polyurethane comprising blowing agent, wherein the Shore hardness of the thermoplastic polyurethane is from A 44 to A 84. 1. The process according to claim 12 , wherein the Shore hardness of the thermoplastic polyurethane is from A 62 to A 80.2. The process according to claim 12 , wherein the thermoplastic polyurethane exhibits a melting range claim 12 , measured by DSC using a heating rate of 20 K/min claim 12 , that starts below 130° C. claim 12 , and the thermoplastic polyurethane has at most a melt flow rate of 250 g/10 min at 190° C. with an applied weight of 21.6 kg to DIN EN ISO 1133.3. The process according to claim 12 , wherein the thermoplastic polyurethane comprises a polytetrahydrofuran of a molar mass of from 600 g/mol to 2500 g/mol.4. The process according to claim 12 , wherein the thermoplastic polyurethane comprises a polyester alcohol of a molar mass of from 600 g/mol to 900 g/mol.5. (canceled)6. The process according to claim 12 , wherein the thermoplastic polyurethane comprising blowing agent comprises from 5 to 80% by weight of organic and/or inorganic fillers claim 12 , based on the total weight of the thermoplastic polyurethane comprising blowing agent.711-. (canceled)12. A process for production of expanded thermoplastic polyurethane foam beads claim 12 , comprising:(i) melting a thermoplastic polyurethane whose Shore hardness is from A 44 to A 84, together with from 0.1 to 40% by weight, based on the total weight of pellets, of a blowing agent, if appropriate with additives, in an extruder, and (ii) pelletizing the melt without devices which inhibit foaming to produce expanded thermoplastic polyurethane foam beads.1314-. (canceled)15. A process for production of foam moldings claim 12 , which comprises producing expanded thermoplastic polyurethane foam beads according to the process of and fusing them in a closed mold by steam at a temperature of from 100° C. to 140° C.16. The process according to claim 12 , wherein ...

MULTILOBED POLYESTER PELLETS

Polyester multilobed prepolymer pellets and methods of making and using the same are provided. The multilobed polyester pellets have an increased surface area to volume ratio which improves intraparticle diffusion mass transfer rates resulting in a reduction of pellet drying and solid state polymerization processing times. 1. A method for producing polyester pellets , the method comprising:extruding a polyester polymer melt through a multilobed capillary to form a multilobed polyester polymer strand; andseparating the polyester polymer strand to form multilobed polyester resin pellets.2. The method of claim 1 , further comprising quenching the multilobed polyester resin pellets.3. The method of claim 2 , further comprising solid state polymerizing the multilobed polyester resin pellets under an inert gas or under partial vacuum.4. The method of claim 1 , wherein the polyester is a poly(ethylene terephthalate) claim 1 , a poly(ethylene furanoate) claim 1 , a poly(ethylene terephthalate) co-polymer claim 1 , or a poly(ethylene furanoate) co-polymer.5. The method of claim 1 , wherein the multilobed polyester resin pellets have a modification ratio of 1.05 or greater.6. The method of claim 1 , wherein the multilobed polyester resin pellets have two or more lobes.7. The method of claim 1 , wherein the multilobed polyester resin pellets have a polymer density of about 1.1-1.8 g/cm(25° C.) and a length of about 2-3 mm.8. The method of claim 1 , wherein the multilobed polyester resin pellets have a polymer density of about 1.3 g/cm(25° C.) claim 1 , a length of about 2.5 mm claim 1 , a cross-sectional area of about 3.8 mm2 claim 1 , and a volume of about 9-10 mm.9. The method of claim 1 , wherein the multilobed polyester resin pellets have at least a 10% faster solid state polymerization rate than cylindrical pellets having an equivalent mass.10. The method of claim 1 , wherein the multilobed polyester resin pellets have at least a 10% faster moisture drying rate than ...

THERMOPLASTIC PAVEMENT MARKING COMPOSITION

A pelletized road marking composition includes a binder mixture, a filler mixture and bentonite clay. The binder mixture includes at least one alkyd ester, at least one wax, at least one ethylene copolymer, and at least one plasticizer. The filler mixture includes at least one coloring additive, reflective elements, and at least one inert inorganic filler. The components of the road marking composition are mixed and melted and processed into pellets. The bentonite clay added to the composition prevents the pellets from clumping when stored at elevated temperatures. 1. A road marking composition comprising a binder mixture comprising at least one alkyd ester , at least one wax , at least one ethylene copolymer , and at least one plasticizer; a filler mixture comprising at least one coloring additive , reflective elements , and at least one inert inorganic filler; and bentonite clay , said road marking composition formed into pellets.2. The composition of claim 1 , wherein said bentonite clay is an organic modified bentonite.3. The composition of claim 1 , wherein the amount of said bentonite clay in said composition ranges from 0.01 to 5.0 percent by weight.4. The composition of claim 3 , wherein the amount of said bentonite clay in said composition ranges from 0.1 to 2.0 percent by weight.5. The composition of further comprising a glass fill viscosity modifier.6. The composition of claim 5 , wherein the amount of said glass fill is in the range of 25 to 40 percent by weight.7. A method for manufacturing a pelletized road marking composition comprising the steps ofa.) forming a binder mixture comprising at least one alkyd ester, at least one wax, at least one ethylene copolymer, and at least one plasticizer;b.) adding bentonite clay to said binder mixture;c.) adding a filler mixture to the combination of binder mixture bentonite clay to form a thermoplastic composition, said filler mixture comprising at least one coloring additive, reflective elements, and at least ...

Carpet Reclamation System

A method an apparatus for reclaiming face fibers and polypropylene and/or polyvinyl chloride backing material from rolls and pieces of post-consumer carpet. The system includes a separator for separating the face fibers from the backing and for separating latex and carbon calcium powder from polypropylene backing. An extruder is provided for extruding the face fibers separated from the backing into extrusions, and a pelletizer pelletizes the extrusions. A roller opener opens the polypropylene backing into fibrous portions and also cleans such fibrous portions. Alternately, a granulator can be provided that chops and grinds the polypropylene or PVC backing into fragments after the separation of the face fibers from the backing. A heat source heats the PVC fragments, and also the polypropylene fragments (thereby separating the latex therefrom), and ultimately melts such fragments. Reclaimed fibers can be pelletized, made into extrusions, used in non-woven products and in other manners.

ADHESIVE RESIN PELLETS AND METHOD OF MANUFACTURING SAME

A method for manufacturing adhesive resin pellets includes adding an antiblocking agent to water, melting an adhesive resin and extruding the adhesive resin into the water, and cutting the adhesive resin extruded into the water to form adhesive resin pellets. Polyolefin fine particles used for the antiblocking agent have an average particle diameter of 1 μm or more and less than 18 μm, and the adhesive resin has an adhesive force of less than 15.00 N/25 mm. 1. A method for manufacturing adhesive resin pellets , comprising:adding an antiblocking agent to water;melting an adhesive resin and extruding the adhesive resin into the water; andcutting the adhesive resin which have been extruded into the water to form adhesive resin pellets, whereinthe antiblocking agent comprises polyolefin fine particles,the polyolefin fine particles have an average particle diameter of 1 μm or more and less than 18 μm, andthe adhesive resin has an adhesive force of less than 15.00 N/25 mm.2. The method for manufacturing adhesive resin pellets according to claim 1 , wherein the adhesive resin has a holding force of 0.5 mm or less.3. The method for manufacturing adhesive resin pellets according to claim 1 , comprising:dehydrating and drying the adhesive resin pellets after the cutting step; andattaching the antiblocking agent to the dehydrated and dried adhesive resin pellets.4. The method for manufacturing adhesive resin pellets according to claim 1 , wherein the polyolefin fine particles are compatible with the adhesive resin.5. The method for manufacturing adhesive resin pellets according to claim 1 , wherein the dehydrated and dried adhesive resin pellets with the antiblocking agent attached thereto have an average particle diameter of 2 to 10 mm.6. Adhesive resin pellets having fine particles attached to surfaces thereof claim 1 , whereinthe fine particles comprise thermoplastic polyolefin fine particles,the fine particles have an average particle diameter of less than 18 μm,the ...

Quenched Granular Absorbent and System and Method for Making Quenched Granular Absorbent

A system and method of extruding self-clumping granular absorbent having cold water soluble amylopectin starch binder formed from starch-containing admixture sufficient for extruded sorbent pellets to produce flowable binder flowing between pellets clumping them together producing clumps of pellets that become hard when substantially dry that have a crush strength of at least 25 PSI and clump retention of at least 80% and preferably at least 90%. As a result, dried pellet clumps are easy to pick up leaving behind unspent pellets for continued sorbent use. A pellet quenching apparatus and method rapidly cools and dries pellets before leaving the extruder preventing loss of cold water soluble starch and binder, preventing pellet shrinkage, and preventing pellet densification. An air conveyor transporting quenched pellets removed from the extruder further cools and dries the pellets producing pellets ready for sorbent use. 1. A method of making granular extrudate comprising the following steps:(a) providing an extruder having an extruder die, a starch-containing admixture for being extruded from the extruder by being discharged from the extruder die as granular extrudate, an extrudate discharge chamber in communication with the extruder die that receives the granular extrudate discharged from the extruder die, and an elongate discharge conduit in gas flow communication with the extrudate discharge chamber for transporting the granular extrudate away from the extruder and the extrudate discharge chamber;(b) extruding the starch-containing admixture from the extruder by gelatinizing the starch-containing admixture and extruding the gelatinized starch-containing admixture by discharging the gelatinized starch-containing admixture from the extruder die into the extrudate discharge chamber; and(c) transporting the granular extrudate from the extrudate discharge chamber into the discharge conduit by a gas flowing through (i) the extrudate discharge chamber and (ii) the ...

Thermoplastic Polyurethane Materials For Forming Medical Devices

Principles and embodiments of the present invention relate generally to thermoplastic polyurethane materials having controlled and improved stiffness and/or flexibility, and methods to prepare them. The thermoplastic polyurethanes described herein having superior stiffness and softening properties may be fabricated into film, tubing, and other forms of medical devices. The thermoplastic polyurethanes comprise: an aromatic diisocyanate excluding non-aromatic diisocyanates; at least one polyglycol; and a chain extender comprising at least one side-chain branching diol and excluding linear diols. 1. A thermoplastic polyurethane comprising a product from the reaction of:an aromatic diisocyanate;at least one polyglycol; anda chain extender comprising at least one side-chain branching diol and excluding linear diols, andoptionally, an amine-terminated polyether;with the proviso that the polyurethane does not contain any non-aromatic diisocyanates, andwherein the polyurethane has an isocyanate index in the range of 1 to 1.4.3. The thermoplastic polyurethane of claim 2 , wherein the side-chain branching diol comprises 2 claim 2 ,2-dimethyl-1 claim 2 ,3-propanediol claim 2 , 2-methyl-1 claim 2 ,3-propanediol claim 2 , or both in a weight ratio of from 0:100 to 100:0 of 2 claim 2 ,2-dimethyl-1 claim 2 ,3-propanediol to 2-methyl-1 claim 2 ,3-propanediol.4. The thermoplastic polyurethane of claim 3 , wherein the side-chain branching diol consists essentially of a mixture of 2 claim 3 ,2-dimethyl-1 claim 3 ,3-propanediol and 2-methyl-1 claim 3 ,3-propanediol in a weight ratio of from 10:90 to 90:10.5. The thermoplastic polyurethane of claim 1 , wherein the at least one polyglycol is selected from the group consisting of polyethylene oxide glycol (PEG) claim 1 , polypropylene oxide glycol (PPG) claim 1 , polytetramethylene ether glycol (PTMEG) claim 1 , polyester glycol claim 1 , silicone glycol claim 1 , polycarbonate glycol and combinations thereof.6. The thermoplastic ...

METHOD FOR PRODUCING MICROPARTICLES

The problem addressed by the present invention is providing a method for producing microparticles. At least two fluids to be processed, a raw material fluid that contains a raw material and a processing fluid that contains a substance for processing the raw material are mixed in a thin film fluid formed between at least two surfaces for processing that are disposed so as to face each other, that can approach and separate from each other and at least one of which rotates relative to the other, and microparticles of the raw material that is processed are obtained. At this time, the proportion of the microparticles of the raw material which has been processed that coalesces with each other is controlled by controlling the circumferential speed of the rotation in a confluence section in which the raw material fluid and processing fluid flow together. 1. A method for producing microparticles , in whichat least two fluids to be processed are used,of them at least one fluid to be processed is a raw material fluid which contains at least one raw material,at least one fluid to be processed other than the foregoing fluid to be processed is a processing fluid which contains at least one substance to process the raw material, andthe fluids to be processed are mixed in a thin film fluid formed between at least two processing surfaces which are disposed in a position they are faced with each other so as to be able to approach to and separate from each other, at least one of which rotates relative to the other whereby obtaining microparticles of the processed raw material, whereinby controlling circumferential velocity of the rotation at a converging site in which the raw material fluid and the processing fluid are converged, rate of coalescence of the microparticles by themselves is controlled.2. The method for producing microparticles according to claim 1 , whereinany one of the fluids to be processed, the raw material fluid and the processing fluid, passes through between the ...

Gas dispersion manufacture of nanoparticulates, and nanoparticulate-containing products and processing thereof

In one aspect, the present invention relates to a method of making multi-phase particles that include nanoparticulates and matrix, which maintains the nanoparticulates in a dispersed state. A flowing gas dispersion is generated that includes droplets of a precursor medium dispersed in a gas phase. The precursor medium contains liquid vehicle and at least a first precursor to a first material and a second precursor to a second material. The multi-phase particles are formed from the gas dispersion by removing at least a portion of the liquid vehicle from the droplets of precursor medium. The nanoparticulates in the multi-phase particles include the first material and the matrix in the multi-phase particles includes the second material.

METHOD FOR MANUFACTURING ASYMMETRIC POLYVINLYLIDENEFLUORIDE HOLLOW FIBER MEMBRANE AND HOLLOW FIBER MEMBRANE MANUFACTURED THEREFROM

The present disclosure relates to a method for manufacturing an asymmetric polyvinlylidene fluoride (PVDF) hollow fiber membrane, whereby a PVDF hollow fiber membrane is manufactured by the thermally induced phase separation method, which enables effective mixing of the PVDF and a diluent without additional use of an inorganic fine powder such as silica and is advantageous in that it is relatively easy to control preparation parameters because temperature is the main factor of phase separation of the two-component system of the polymer and the diluent and thus to obtain a separation membrane of satisfactory quality, by providing temperature difference between the inner and outer surfaces of a hollow fiber, thereby achieving an asymmetric structure in which the inner surface side and the outer surface side of the hollow fiber have different pore sizes and distributions. 1. A method for manufacturing an asymmetric PVDF hollow fiber membrane , comprising:(a) preparing a melted mixture comprising a PVDF resin and a diluent;(b) forming an unsolidified PVDF hollow fiber by spinning the melted mixture through a dual nozzle;(c) inducing thermally induced phase separation by providing temperature difference between the inner and outer surfaces of the spun unsolidified PVDF hollow fiber by supplying nitrogen gas at higher temperature than the outer surface to the inner surface and quenching the outer surface using a cooling medium at lower temperature than the inner surface; and(d) forming pores inside the hollow fiber by extracting the diluent from the thermally phase separation induced PVDF hollow fiber precursor.2. The method for manufacturing an asymmetric PVDF hollow fiber membrane according to claim 1 , wherein the preparing the melted mixture comprises preparing a pellet by uniformly mixing a PVDF resin and a diluent in a batch reactor and melting the prepared pellet in an extruder.3. The method for manufacturing an asymmetric PVDF hollow fiber membrane according to ...

Nozzle, Apparatus, and Method for Producing Microparticles

A nozzle includes a nozzle body having a fluid passageway to which extension tubes are communicated. Each extension tube includes an end having an outlet port. The outlet ports are spaced from each other. An apparatus includes the nozzle, a fluid tank into which the extension tubes extends, a fluid shear device mounted in the fluid tank, and a temperature control system in which the fluid tank is mounted. A method includes filling a water phase fluid into the fluid tank. An oil phase fluid flows out of the nozzle body via the outlet ports. The water phase fluid is disturbed and flows out of the outlet ports to form semi-products of microparticles in the fluid tank. Each semi-product has an inner layer formed by the oil phase fluid and an outer layer formed by the water phase fluid. The outer layers of the semi-products are removed to form microparticles. 1. A nozzle for producing microparticles , comprising: a nozzle body including a fluid passageway therein , with a plurality of extension tubes communicated with an end of the fluid passageway , with each of the plurality of extension tubes including a distant end having an outlet port and located distant to the fluid passageway , and with the outlet ports of the plurality of extension tubes spaced from each other.2. The nozzle for producing microparticles as claimed in claim 1 , wherein the plurality of extension tubes is parallel to each other.3. The nozzle for producing microparticles as claimed in claim 1 , with the outlet port of each of the plurality of extension tubes having a diameter claim 1 , with each of the plurality of extension tubes including a tubular wall having a thickness smaller than the diameter.4. The nozzle for producing microparticles as claimed in claim 1 , with the outlet port of each of the plurality of extension tubes having a diameter claim 1 , with two adjacent extension tubes having a minimum spacing therebetween claim 1 , and with the minimum spacing being larger than the diameter.5. ...

Method of extruding linear low-density polyethylene without surface melt fracture

A method of extruding a melt of a linear low-density polyethylene (LLDPE) without surface melt fracture, the method comprises heating a melt of the LLDPE to a temperature from 190.0 to 260.0 degrees Celsius; and extruding through a die the heated melt at a shear rate of from 1,100 to 7,000 per second and at a shear stress of greater than 0.40 megapascal, thereby forming a polyethylene extrudate without surface melt fracture.

BUILT-IN ANTIMICROBIAL PLASTIC RESINS AND METHODS FOR MAKING THE SAME

Provided herein is a method for preparing antimicrobial thermoplastic resins and products thereof. 1. A method for preparing an antimicrobial thermoplastic resin , the method comprising the steps of:preparing an antimicrobial thermoplastic resin by melt extruding a composition comprising an intermediate, polyethylene glycol (PEG), and a basic plastic selected from the group consisting of a polyolefin, polyvinyl chloride, and a polycarbonate, wherein said antimicrobial thermoplastic is biocide-free and has bacterial-repellent properties and the intermediate is selected from the group consisting of:a co-polymer comprising a polystyrene repeating unit and a maleic anhydride repeating unit;a maleic anhydride grafted polypropylene; anda maleic anhydride-grafted olefin plastomer.2. The method of further comprising the step of molding the antimicrobial thermoplastic resin into a finished article through a thermoforming process.3. The method of claim 2 , wherein the finished article is in a form selected from the group consisting of solid claim 2 , monolith claim 2 , tube claim 2 , composite claim 2 , fiber claim 2 , film claim 2 , sheet and varnish.4. The method of claim 1 , wherein the basic plastic is a thermoplastic and melt-processable plastic resin selected from the group consisting polyethylene claim 1 , polypropylene claim 1 , and polyvinyl chloride.5. The method of claim 1 , wherein the composition further comprises citric acid.6. The method of claim 1 , wherein the intermediate is a co-polymer comprising a polystyrene repeating unit and a maleic anhydride repeating unit.7. The method of claim 6 , wherein the basic plastic is selected from the group consisting polyethylene claim 6 , polypropylene claim 6 , and polyvinyl chloride.8. The method of claim 6 , wherein the basic plastic is selected from the group consisting polypropylene and polyvinyl chloride.9. The method of claim 8 , wherein the basic plastic is polypropylene and PEG claim 8 , the intermediate claim 8 ...

Biobased Additive for Thermoplastic Polyesters

A biobased additive is provided that is both a nucleating and a reinforcing agent when added to thermoplastic polyester (e.g., biopolyesters). A composite material, which is an additive-reinforced biopolyester, was prepared and improved thermo-mechanical properties were quantified. This composite material is a new class of biobased material that offers a sustainable, environmentally-friendly solution for packaging and other applications.