Способ

Изобретение относится к полиэтиленовой смеси высокой плотности, предназначенной для изготовления изделий, предпочтительно таких как трубы. Полиэтиленовая смесь имеет показатель текучести расплава (ПТР) не более 10,0 г/10 мин, определенный в соответствии с ISO 1133 при 190° С и нагрузке 21,6 кг, и плотность по меньшей мере 940 кг/м. Причем смесь содержит от 55 до 95 мас.% мультимодального сополимера полиэтилена высокой плотности с плотностью по меньшей мере 940 кг/ми от 5 до 45 мас.% гомополимера этилена сверхвысокой молекулярной массы, который имеет характеристическую вязкость по меньшей мере 6 дл/г и ПТРменее 0,5 г/10 мин. Полученная полимерная смесь обладает повышенной устойчивостью против провисания и ударной прочностью, без ухудшения ее механических свойств при растяжении. 4 н. и 13 з.п. ф-лы, 3 ил., 3 табл., 9 пр.

СОСТАВ СМЕСИ ПОЛИМЕРОВ С ВЫСОКИМИ БАРЬЕРНЫМИ СВОЙСТВАМИ

Изобретение относится к многослойной ёмкости для транспортировки опасных веществ. Ёмкость содержит: первый слой, представляющий собой внутренний слой, выполненный из полиэтилена высокой плотности (HDPE); барьерный слой, представляющий собой промежуточный слой, расположенный между первым слоем и вторым слоем, выполненный из смеси полимеров, содержащий от 78 до 92 мас.% гомополимера этилена, представляющего собой полиэтилен высокой плотности, от 3 до 10 мас.% гомополимера полиамида, от 5 до 10 мас.% привитого малеиновым ангидридом полиэтилена (MAgPE) и от 0 до 2 мас.% снимающего статическое электричество соединения к общему весу состава смеси полимеров, необязательно, в комбинации с подходящими добавками; и второй слой, представляющий собой наружный слой, содержащий HDPE. Технический результат заявленного изобретения заключается в получении многослойной ёмкости с высоким сопротивлением ударной нагрузке и обладающей улучшенными барьерными свойствами. 8 з.п. ф-лы, 2 пр.

ПОЛИМЕРНАЯ КОМПОЗИЦИЯ ДЛЯ УКУПОРОЧНЫХ СРЕДСТВ ДЛЯ КОНТЕЙНЕРА

Изобретение относится к полимерной композиции для формования и укупорочному средству для контейнера, содержащего такую полимерную композицию. Композиция содержит гомополимер этилена и сополимер этилена, содержащий сомономер, представляющий собой 1-бутен, в количестве от 0,60 до 0,65 мол.% по отношению к общему количеству мономера в сополимере этилена. Сополимер этилена имеет более высокую средневесовую молекулярную массу, чем гомополимер этилена, причем полимерная композиция имеет плотность в диапазоне 0,9553-0,9560 г/см3, скорость течения расплава MFR2от 0,72 до 0,78 г/10 мин в условиях проведения испытания при 190°C с нагрузкой 2,16 кг, средневесовую молекулярную массу от 150000 до 200000 г/моль, вязкость при угловой частоте 0,01 [1/с], η0,01при 190°С от 22371 до 24420 Па*с. При этом массовое соотношение гомополимера этилена к сополимеру этилена в полимерной композиции находится в диапазоне от 45:55 до 55:45. Полимерная композиция имеет полупериод изотермической кристаллизации, который ...

ПОЛИМЕРНАЯ КОМПОЗИЦИЯ ДЛЯ ЭЛЕКТРОТЕХНИЧЕСКИХ УСТРОЙСТВ

Изобретение относится к кабелю, в том числе к силовому кабелю, или силовому кабелю постоянного тока, или сшиваемому силовому кабелю, а также к способу изготовления кабеля. Кабель содержит проводник, окруженный по меньшей мере одним слоем, который выполнен из полимерной композиции. Полимерная композиция содержит (а) полиэтилен, полученный в присутствии катализатора полимеризации олефинов, (б) ненасыщенный гомополимер этилена низкой плотности (ПЭНП) или ненасыщенный сополимер этилена низкой плотности и (в) анионообменную добавку в количестве от 0,000001 до менее 1 мас.%. Причем полиэтилен (а) выбран из сополимеров этилена очень низкой плотности (ПЭОНП), линейных сополимеров полиэтилена низкой плотности (ЛПЭНП), сополимеров этилена средней плотности (ПЭСП) или гомополимеров или сополимеров полиэтилена высокой плотности (ПЭВП). Полученный кабель обладает низкой проводимостью. 2 н. и 15 з.п. ф-лы, 1 ил., 2 табл., 5 пр.

КОМПОЗИЦИИ ДИСПЕРСИЙ ПОЛИОЛЕФИНОВ ДЛЯ ОБЕСПЕЧЕНИЯ ВЫСОКОЙ СКОРОСТИ ПРОХОЖДЕНИЯ ПАРОВ ЧЕРЕЗ ГИДРОФОБНЫЕ ПОКРЫТИЯ

Изобретение относится к смесям водных полиолефиновых дисперсий. Описана композиция для получения проницаемого для паров воды гидрофобного покрытия. Композиция включает смесь (i) первичной дисперсии полиолефина одного или большего количества содержащих частицы большого размера полиолефинов со средним размером частиц 1-5 мкм и температурой плавления не ниже 95°С, летучее основание и диспергирующий агент - линейную карбоновую кислоту, содержащую 14-40 атомов углерода, и (ii) пленкообразующей второй дисперсии одного или большего количества полимеров со средним размером частиц 0,1-1,0 мкм, выбранной из числа одного или большего количества полиолефинов, обладающих температурой плавления 50-90°С, дополнительно содержащей по меньшей мере частично нейтрализованный содержащий олефин диспергирующий агент. Отношение размера частиц первичной дисперсии полиолефина к размеру частиц второй дисперсии находится в диапазоне от 3:1 до 29:1. Покрытия, изготовленные из заявленной композиции, обеспечивают высокую ...

СПОСОБ ПОЛУЧЕНИЯ УПЛОТНЕННОГО МАТЕРИАЛА С ОБРАБОТАННОЙ ПОВЕРХНОСТЬЮ, ПРИГОДНОГО ДЛЯ ОБРАБОТКИ НА ОДНОШНЕКОВОМ ОБОРУДОВАНИИ ОБРАБОТКИ ПЛАСТМАСС

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 ...

БИМОДАЛЬНЫЕ ПОЛИЭТИЛЕНОВЫЕ СМОЛЫ ВЫСОКОЙ ПЛОТНОСТИ И КОМПОЗИЦИИ С УЛУЧШЕННЫМИ СВОЙСТВАМИ, А ТАКЖЕ СПОСОБЫ ИХ ПОЛУЧЕНИЯ И ПРИМЕНЕНИЯ

... 1. Полимерная композиция на основе бимодального полиэтилена высокой плотности, включающая основную смолу, которая имеет плотность от примерно 945 до примерно 955 кг/м, предпочтительно от 946 до 951 кг/м, наиболее предпочтительно от 947 до 951 кг/м, и включает этиленовый полимер (А) имеющий плотность по меньшей мере примерно 968 кг/м, предпочтительно выше 970 кг/м, наиболее предпочтительно выше 971 кг/м, в количестве, составляющем от примерно 45 до примерно 55 мас.%, предпочтительно от 47 до 53 мас.%, предпочтительно от 48 до 52 мас.%, наиболее предпочтительно от 49,5 до 51,5 мас.%, и этиленовый полимер (Б), имеющий плотность ниже плотности полимера А, причем указанная композиция имеет комплексную вязкость при скорости сдвига 0,01 рад/с в интервале от примерно 200 до примерно 450 кПа·с, предпочтительно от 220 до 450 кПа·с, наиболее предпочтительно от 220 до 420 кПа·с, и комплексную вязкость при скорости сдвига 100 рад/с в интервале от примерно 1900 до примерно 2600 Па·с, предпочтительно ...

КОМПОЗИЦИЯ НА ОСНОВЕ ВТОРИЧНОГО ПОЛИЭТИЛЕНА ИЗ ОТХОДОВ КАБЕЛЯ

Изобретение относится к композиции полиэтилена, предназначенной для изготовления изделий, и к способу получения указанной композиции. Композиция содержит базовый полимер и неорганический наполнитель, который присутствует в композиции в количестве от 1 до 50 мас.% от общей массы композиции. Причем базовый полимер содержит первый сшитый полиэтилен (РЕХ), с содержанием геля, измеренным согласно ASTM D 2765:2006, в пределах от 5% до 80% от общей массы сшитого полиэтилена (РЕХ), полученного из вторично перерабатываемых отходов, и второй полиэтилен (РЕ), выбранный из первичного и вторичного полиэтилена или их смесей. Композиция по изобретению имеет улучшенный баланс между жесткостью и упругостью при изгибе, хорошей пластичностью, выраженной в удлинении при разрыве, наряду с разрушающим напряжением при растяжении. Кроме того, углеродный след изделий, полученных при использовании вторичного РЕХ, ниже по сравнению с продуктами, полученными из первичного полиэтилена. 4 н. и 11 з.п. ф-лы, 3 табл.

КОМПОНЕНТЫ ВОЛОКОННО-ОПТИЧЕСКОГО КАБЕЛЯ

Настоящее изобретение относится к компонентам волоконно-оптического кабеля типа буферных трубок, трубок сердечника или трубок профилированного сердечника, изготовленным из экструдированной композиции, включающей полиэтилен высокой плотности, кристаллический полипропилен и олефиновый блочный композит. Описана полимерная композиция для защитного компонента волоконно-оптического кабеля, включающая: (a) бимодальный полиэтилен высокой плотности в количестве, составляющем по меньшей мере 50 мас.% по отношению к общей массе полимерной композиции, (b) кристаллический полипропилен в количестве, составляющем более чем 0, но менее чем 50 мас.% по отношению к общей массе полимерной композиции, и (c) олефиновый блочный композит в количестве, составляющем от 1 до 20 мас.% по отношению к общей массе полимерной композиции. Также в изобретении раскрыты экструдированный защитный компонент волоконно-оптического кабеля, включающий вышеописанную экструдированную полимерную композицию, и волоконно-оптический ...

СОСТАВЫ НА ОСНОВЕ ПОЛИОЛЕФИНА, КЛЕЙКИЕ ВЕЩЕСТВА И ПОЛУЧАЕМЫЕ МНОГОСЛОЙНЫЕ СТРУКТУРЫ

Группа изобретений относится к клеевой промышленности. Клейкий состав на основе полиолефина содержит: (А) первый состав полимера, включающий полиолефин, привитый на ненасыщенный мономер; (В) второй состав полимера, включающий полиэтилен; (C) третий состав полимера, содержащий: (i) первый полиизобутилен и (ii) второй полиизобутилен. Первый полиизобутилен обладает средневязкостным молекулярным весом (VAMW), а второй полиизобутилен обладает средневязкостным молекулярным весом (VAMW), причем VAMW≠ VAMW. Клейкий состав на основе полиолефина применяется для прослойки для многослойных структур. Состав применяется в качестве клейкого вещества для приклейки металлического слоя. Обеспечивается увеличение адгезии клейкого состава к металлам. 3 н. и 9 з.п. ф-лы, 1 табл., 6 пр.

МЕТОДЫ ПОВЫШЕНИЯ ЦВЕТОСТОЙКОСТИ ПОЛИЭТИЛЕНОВЫХ СМОЛ

Polyolefin-Zusammensetzung und deren Verwendung.

HARZZUSAMMENSETZUNGSFORMKÖRPER UND GLEICHSTROMNETZKABEL

Es wird ein Harzzusammensetzungsformkörper bereitgestellt, der eine Isolierschicht eines Gleichstromnetzkabels bildet, umfassend: ein vernetztes Basisharz, das Polyethylen enthält, und einen anorganischen Füllstoff mit einem mittleren Volumendurchmesser von 80 nm oder weniger, wobei mindestens ein Teil einer Oberfläche des anorganischen Füllstoffs eine Aminosilylgruppe mit einer Aminogruppe umfasst, und die Lichtdurchlässigkeit einer Platte bei einer Wellenlänge von 500 nm 70 % oder mehr beträgt, gemessen in einer Atmosphäre bei 90 °C, wenn die Platte durch Schneiden des Harzzusammensetzungsformkörpers in eine Dicke von 0,5 mm hergestellt wird.

METHOD OF PRODUCING MULTICELLULAR MULTILAYER THERMOPLASTIC SYNTHETIC RESIN FILMS

... 1,240,586. Paper-like thermoplastic synthetic resin films. SEKISUI KAGAKU KOGYO K.K. 4 July, 1969 [6 July, 1968], No. 33964/69. Heading B5B. [Also in Divisions B2 and C3] A process for the production of paper-like thermoplastic synthetic resin films which comprises melt mixing and kneading a composition comprising 100 parts by weight of an olefin resin, 1 to 100 parts by weight of at least one additional resin selected from styrene, acrylate, acetal, phenoxy, vinyl chloride, vinyl acetate and amide resins, and 10 to 300 parts by weight of at least one inorganic filler, shaping the composition into a sheet and stretching the sheet biaxially at 100‹ to 170‹ C., preferably at a draw ratio in at least one direction higher than 1À5 : 1. The composition may also contain not more than the total weight of olefin resin, additional resin and inorganic filler of one or more rubber selected from polyurethane, styrene-butadiene, acrylonitrile-butadiene, polybutadiene and propylene oxide rubbers. The ...

Photodegradable polyolefin composition

REINFORCED POLYOLEFIN COMPOSITIONS

... 1442527 Filled polyolefin compositions SUMITOMO CHEMICAL CO Ltd 30 May 1974 [4 June 1973] 24085/74 Heading C3P Reinforced polyolefin compositions are prepared by reacting together (1) a mixture of (a) a molten crystalline polyolefin, (b) 0À1 to 10% by weight of (a) of an unsaturated aliphatic carboxylic acid or anhydride and (c) either (i) 0À2 to 80% by weight of (a) of an oxide or sulphate of a Group II(a), III(b) or IV(a) metal or (ii) 0À1 to 20% by weight of (a) of a hydroxide of magnesium, calcium, titanium or zirconium, and mixing with (2) a filler before or after the reaction, said reaction being performed in the absence of a free radical catalyst. A further crystalline or non-crystalline polyolefin may also be incorporated. The polyolefin may be polyethylene, polypropylene, polybutene-1 or an ethylene/propylene or ethylene/butene copolymer. The modifiers may be (b) maleic, fumaric, itaconic, citraconic or acrylic acid or maleic, itaconic or citraconic anhydride, (c)(i) magnesium, ...

POLYMER BLENDS

... 1430085 Photodegradable polymer compositions J E GUILLET and H G TROTH 6 July 1973 [7 April 1972 12 Sept 1972] 16076/72 and 42328/72 Headings C3C C3B C3P and C3R Photodegradable compositions comprise (1) a major proportion by weight of a synthetic polymer which is (a) an addition polymer or copolymer of CH 2 = CXY where X is H or alkyl and Y is H, alkyl, aryl, substituted aryl, carboxylic acid, carboxylic acid alkyl ester, hydroxyl, acyloxy, cyano, alicyclic of not more than 8 carbon atoms, alkoxy, amido or alkenyl; or (b) a polyamide, polyester, polyurethane, polyether, polyepoxide, polyamide ester, polyimide, poly(amideimide), polyurea or polyamino acid condensation polymer; and (2) a minor proportion by weight of a ketone copolymer having ketone carbonyls in side chains immediately adjacent to the backbone polymeric chain in amount of 0À01 to 5 weight per cent by weight of synthetic polymer and ketone copolymer. The compositions may be prepared by dry, solution or melt blending or by ...

RECYCLING TYRES

Polymer composition and molded articles shaped of the same

Polymer composition and molded articles shaped of the same

Polymer composition and molded articles shaped of the same

Polymer composition and molded articles shaped of the same

HDPE

HDPE

Polymer composition and molded articles shaped of the same

Polymer composition and molded articles shaped of the same

Polymer composition and molded articles shaped of the same

Polymer composition and molded articles shaped of the same

THERMOPLASTIC ONE, ELASTOMERS MIXTURE

POLYMER COMPOSITIONS AND PROCEDURES FOR THE PRODUCTION FROM BUILDING MATERIALS

Polymer composition for container closures

Abstract The present invention relates to a polymer composition comprising an ethylene homopolymer and an ethylene copolymer having a comonomer content comprising a comonomer in an amount of at least 0.55 mol% with respect to the total amount of monomer in the ethylene copolymer, wherein the ethylene copolymer has a higher weight average molecular weight than the ethylene homopolymer, the polymer composition has a density in the range of 0.950-0.965 g/cm, a melt flow rate (MFR2) of at least 0.3 g/10 minutes, a weight average molecular weight of at least 100,000 g/mol, a and viscosity at an angular frequency of 0.01 [1/s], n o.o1 of at least 20,000 Pa.s wherein; the polymer composition has an Isothermal Crystallization Half-Time, ICHT which is less than 10 minute at 123 C and a Full Notch Creep Test, FNCT of at least 60 hours.

DYNAMICALLY PARTIALLY CURED THERMOPLASTIC BLEND OF MONO- OLEFIN COPOLYMER RUBBER AND POLYOLEFIN PLASTIC

Nanocomposite composition having super barrier property and article using the same

Plastic foam material composed of polyolefin based resin and silane-modified polymer and method for making same

Composition based on recycled polyethylene from cable waste

The invention is related to a polyethylene composition characterized in that it comprises a base resin and an inorganic mineral filler which is present in the composition in an amount of 1 to 50 wt% in respect to the weight of composition, wherein said base resin comprises: a) a first crosslinked polyethylene (PEX) having a gel content (measured according to ASTM D 2765:2006) in the range of 5% to 80% in respect to the weight of crosslinked polyethylene (PEX), said crosslinked polyethylene (PEX) being obtained from recycled wastes and b) a second polyethylene (PE)selected from virgin polyethylene and recycled polyethylene, or mixtures thereof. The invention is further related to a process for production of said polyethylene composition, and use of the polyethylene composition.

Process for the preparation of a high density polyethylene blend

A pipe comprising high density polyethylene blend, comprising A) 55 to 95 wt% of a high density multimodal polyethylene component having a density of at least 940 kg/m ...

Degradable sheet material

The present invention provides a sheet material formed of a degradeable composition, the composition comprising: 30 to 80 wt% calcium carbonate by weight of the composition; an additive; and the balance a polymer selected from polyethylene, polypropylene and copolymers and blends thereof, wherein the additive comprises, by combined weight of the additive and the polymer: (a) two or more transition metal compounds in a total amount of from 0.15 to 0.6 wt%; (b) a mono-or poly-unsaturated C ...

A process for melt blending high molecular weight ethylene polymer and low molecular weight ethylene polymer

OLEFIN POLYMER CONTAINING ALDEHYDE,PROCESS FOR PRODUCING THE SAME AND COMPOSITION COMPRISING THE SAME

PROCESS FOR PREPARING ARTICLES FABRICATED FROM POLYOLEFIN/POLYAMIDE BLENDS HAVING LOW PERMEABILITY TO GASES

PHOTODEGRADABLE POLYMER MASTERBATCHES

THERMOPLASTIC BLEND OF MONOOLEFIN COPOLYMER RUBBER AND POLYOLEFIN PLASTIC

HIGH TEMPERATURE TIE LAYER COMPOSITIONS, AND ARTICLES MADE THEREFROM

A tie layer composition comprising from 60 wt. to 95 wt.% of a first polyethylene composition comprising a first molecular weight ethylene-based polymer component and a second molecular weight ethylene-based polymer component, wherein the polyethylene resin has a density from 0.940 to 0.960 g/cc and a melt index (I2) from 0.01 to 5 g/10 min; and from 5 wt.% to 40 wt.% of a second polyethylene composition comprising: (i) a high density polyethylene having a density greater than or equal to 0.940 g/cc; and (ii) a maleic-anhydride grafted polyethylene.

DUAL COMPONENT LLDPE COPOLYMERS WITH IMPROVED IMPACT AND TEAR RESISTANCE

Disclosed are ethylene polymer compositions containing a homogeneously-branched first ethylene polymer component and a homogeneously-branched second ethylene polymer component of higher density than the first ethylene polymer component. The ethylene polymer composition can be characterized by a density from 0.912 to 0.925 g/cm3, a melt index less than 3.5 g/10 min, and a CY-a parameter at 190 °C from 0.25 to 0.65. These polymer compositions have the excellent dart impact strength and optical properties of a metallocene-catalyzed LLDPE, but with improved machine direction tear resistance, and can be used in blown film and other end-use applications.

LIGNIN COMPOSITIONS COMPRISING ACTIVATED CARBON FOR ODOR REDUCTION

The present invention relates to lignin compositions and methods for producing lignin composite materials. Composites of this invention substantially reduce or eliminate odor emanating from lignin that would otherwise be present.

CELLULOSIC COMPOSITES COMPRISING WOOD PULP

The present invention discloses cellulosic composites that include mechanical or chemical pulp, and methods for producing such cellulosic composites. Embodiments of such composites may exhibit improved mechanical properties and moisture resistance when compared to composites derived from conventional cellulosic feedstock.

PROCESS FOR FORMING A POWDER

The present disclosure provides a process. The process includes (i) melt blending, in an extruder, (a) a polyolefin phase and (b) an aqueous phase in the presence of (c) at least one dispersant selected from an acrylic dispersant, a poloxamer dispersant, and combinations thereof; (ii) producing an interfacial tension from 0.1 dynes/cm to 25 dynes/cm; (iii) forming a polyolefin aqueous dispersion having from 25 wt% to 90 wt% solids content of dispersion; and (iv) removing the water from the polyolefin aqueous dispersion to form a powder. The powder has a mean volume average particle size from 10 µm to 300 µm, a sphericity from 0.92 to 1.0, a particle size distribution from 1 to less than 2, and a particle density from 98% to 100%.

INK, TRANSFERS, METHODS OF MAKING TRANSFERS, AND METHODS OF USING TRANSFERS TO DECORATE PLASTIC ARTICLES

A thermal indicia transfer comprises a fixing layer between a carrier sheet and a printed ink layer. The ink comprises plastic particles, a solvent, an indicia additive, a dispersing agent, and optionally a binder. The fixing layer is coated onto the carrier sheet and cured. The ink layer is printed onto the fixing layer where the plastic particles are held in place by the tackiness and structure of the fixing layer. The printed ink layer is dried at a temperature high enough to remove the solvent from the ink layer, but low enough to prevent melting of the plastic particles.

IN-MOLD LABELS

In-mold labels comprise a printed sheet and a "cover stock" layer that covers the printed sheet and also provides adhesion of the label to the mold prior to the molding procedure. The cover stock is prepared from a blend of a major portion of polymer composition having a high melting point and a lesser amount of a polyolefin having a low melting point. The high melting point polymer composition must contain an ethylene-vinyl acetate (EVA) copolymer having a melting point of greater than 85° C. The cover stock is characterized by having a non-homogeneous morphology in which discrete "islands" of the high melting point polymer are present in a continuous "sea" of the polyolefin. The labels of this invention are especially suitable for applying labels to a rotomolded part. The cover stock melts during the rotomolding process to provide a protective cover for the label graphics.

OPTICAL FIBER CABLE COMPONENTS

Polymeric compositions comprising a high-density polyethylene, a crystalline polypropylene, and an olefin block composite. Optical cable components fabricated from an extrudable polymeric composition of high-density polyethylene, a crystalline polypropylene, and an olefin block composite. Optionally, the polymeric composition can further comprise a nucleating agent. The polymeric composition may also contain one or more additives. The optical fiber cable components can be selected from buffer tubes, core tubes, and slotted core tubes, among others.

POLYOLEFIN-BASED COMPOSITIONS, ADHESIVES, AND RELATED MULTI-LAYERED STRUCTURES PREPARED THEREFROM

The present disclosure provides a polyolefin-based composition made from or containing (A) a first grafted polyolefin composition, (B) a second grafted polyolefin composition made from or containing a first metallocene-catalyzed linear low density polyethylene grafted with an unsaturated monomer, (C) a second metallocene-catalyzed linear low density polyethylene composition, (D) a Ziegler-Natta-catalyzed linear low density polyethylene composition, (E) an elastomeric composition made from or containing (i) an elastomeric ethylene copolymer and (ii) an ethylene-propylene elastomer, and (F) a tackifier composition. Optionally, the polyolefin- based composition may be further made from or contain an additives composition. The polymeric composition is suitable for use as a tie-layer adhesive composition.

CONDUCTIVE POLYMER COMPOSITE

A conductive polymer composite comprising conductive particles dispersed in a polymer matrix, the polymer matrix comprising: a first polymer; and a second polymer, wherein: the first polymer and the second polymer are immiscible; and the majority of the conductive particles are dispersed in only one of the first polymer and the second polymer.

POLYOLEFIN-BASED COMPOSITIONS, ADHESIVES, AND RELATED MULTI-LAYERED STRUCTURES PREPARED THEREFROM

A polyolefin-based composition made from or containing (A) a first polymer composition made from or containing a polyolefin grafted with an unsaturated monomer, (B) a second polymer composition made from or containing a polyethylene, and (C) a third polymer composition made from or containing (i) a first polyisobutylene and (ii) a second polyisobutylene. The first polyisobutylene has a Viscosity Average Molecular Weight (VAMWi), and the second polyisobutylene has a Viscosity Average Molecular Weight (VAMW2), wherein VAMWi ? VAMW2. The polyolefin-based composition is useful as an adhesives or a tie-layer adhesive composition for multi-layered structures. In particular, the composition is useful as an adhesive to bind a metal layer to a dissimilar substrate.

PROCESS FOR FOAMING POLYOLEFIN COMPOSITIONS USING A FLUORORESIN AS A NUCLEATING AGENT

A polyolefin composition is foamed by a process in which a nucleator is used, and the nucleator comprises 80% or more of unagglomerated fluororesin particles and/or agglomerates of fluororesin particles in which both the unagglomerated particles and the agglomerates are less than 1 µm in size.

LIGHT PROTECTIVE BOTTLE DESIGN

A new light protective package including a monolayer which includes treated ?iO2 particles at high concentration levels of 6 wt% or higher of the monolayer, more preferably greater than 7 wt% of the monolayer, even more preferably greater than 8 wt. % of the monolayer, wherein the monolayer protects the food within the package from both light and physical damage. The monolayer has superior light protection properties while maintaining mechanical properties. The monolayer has a light protection factor ("LPF") value of greater than 25, preferably greater than 30, more preferably greater than 40 or even more preferably greater than 50. The treated TiO2 material can be dispersed and processed in package production processes by use of incorporation with a masterbatch, and preferably processed into a package using blow molding methods.

PLANT FIBER-REINFORCED THERMOPLASTIC RESIN COMPOSITION

The present invention is directed to plant fiber-reinforced thermoplastic compositions and a method for reinforcing thermoplastic resins. The present invention provides a use for the cellulose portion of a plant material, which is the portion left over after processing the selected plant materials to separate the hemi-cellulose and lignin from the cellulose.

POLYMERIC COMPOSITIONS AND METHODS FOR MAKING CONSTRUCTION MATERIALS FROM THEM

Polymeric composites are described that can be formed into articles of construction to replace similar articles formed of wood and concrete. The composites comprise a polymer component comprising polyolefins preferably obtained as waste or recycle; a rubbery polymeric component preferably obtained from disposed tires; and a reinforcing filler component comprising mica. The mica is preferably of the expanded variety to allow for a reduction in density over similar composites containing traditional mica. The evaporation of volatile compounds initially contained within the different components, primarily the rubbery polymeric component, allows for the production of articles of construction having a foamed inner core in which the foamed cell structure has not been achieved through the use of traditional CO2 generating foaming agents. Processes for forming the articles of construction are provided that include both extrusion and molding techniques.

Procédé de fabrication d'une pellicule synthétique ressemblant au papier

COMPOSITION FOAMED POLYPROPYLENE

HIGH-DENSITY POLYETHYLENE FOR MEANS OF SEALING

CABLE, CONTAINING FOAMED LAYER, POLYMER INCLUDING POLYOLEFIN AND FOAMING AGENT

CABLE COMPRISING A FOAMED LAYER COMPRISING A POLYOLEFIN POLYMER AND A BLOWING AGENT

COMPOUNDS FOR AUTOMOBILE INDUSTRY WITH IMPROVED ODOR

POLYOLEFIN PIPE

OF COVER OR CORKING VESSELS, ARE MANUFACTURED FROM COMPOSITION RESIN, POLYETHYLENE CONTAINING

CABLE WITH IMPROVED ELECTRICAL PROPERTIES

REINFORCED SUBSTRATE

Antistatic smoothing tube and production process thereof

Three-layer composite hot melt adhesive film for bonding metal and polar functional plastic and processing technique thereof

Insulating material for cables and preparation method thereof

Slush molding composition

Novel shockproof material

Halogen-free crosslinkable resin composition, crosslinked insulated wire and cable

Mildew-proof and algae-resistant functional wood-plastic composite material and preparation method thereof

THERMOPLASTIC BLEND OF MONOOLEFIN COPOLYMER RUBBER AND POLYOLEFIN PLASTIC

POLYOLEFIN COMPOSITIONS

Process for the preparation of plasto-elastomers compositions containing a thermoplastic olefinic polymer.

POLYMER COMPOSITION AND MOLDED ARTICLES SHAPED OF THE SAME

composições poliméricas

resina polimérica preenchida e seu uso, uso de uma carga funcional em uma resina polimérica preenchida e artigo de fabricação

PROCEOS PARA FORMAR UN POLVO

La presente divulgación proporciona un proceso. El proceso incluye (i) mezclar por fusión, en una extrusora, (a) una fase de poliolefina y (b) una fase acuosa en presencia de (c) al menos un dispersante seleccionado de un dispersante acrílico, un dispersante de poloxámero y combinaciones de estos; (ii) producir una tensión interfacial que va de 0,1 dinas/cm. a 25 dinas/cm.; (iii) formar una dispersión acuosa de poliolefina que tiene de 25% en peso a 90% en peso de contenido de sólidos de dispersión; y (iv) eliminar el agua de la dispersión acuosa de poliolefina para formar un polvo. El polvo tiene un tamaño de partícula promedio en volumen medio que va de 10 mm a 300 mm, una esfericidad que va de 0,92 a 1,0, una distribución de tamaño de partícula que va de 1 a menos de 2 y una densidad de partícula que va de 98% a 100%.

formulações de polietileno com barreira melhorada e resistência à rachadura por tensão ambiental

membro de hppe e método de preparação de um membro de hppe

Low coefficient of friction ethylene-based compositions

The present disclosure provides a composition containing a polymeric blend. The polymeric blend contains (A) from 50 wt% to 90 wt% of a first ethylene-based polymer having a density from 0.895 g/cc to 0.905 g/cc; and a melt index from 0.1 g/10 min to 50 g/10 min; (B) from 8 wt% to 48 wt% of a second ethylene-based polymer having a density from 0.935 g/cc to 0.967 g/cc; and a melt index from 0.1 g/10 min to 180 g/10 min; and from 0.01 wt% to 2.0 wt% of a slip agent, based on the total weight of the polymeric blend. The polymeric blend has (i) an overall density from 0.900 g/cc to 0.925 g/cc; and (ii) a coefficient of friction (COF) after aging for 1 week at 60 DEG C from 0.001 to 0.400. The present disclosure also provides a multilayer film with a first layer containing the composition.

Multimodal high density polyethylene

The invention is directed to a multimodal polyethylene having a flow ratio FRR ranging between ≥25 and ≤35, a density ranging between ≥948.0 kg/m3 and ≤953.0 kg/m3, an MFR190/5 ranging between ≥0.1 and ≤0.4 g/10 min and comprising from 50-54% by weight of an ethylene homopolymer A and from 46-50% by weight of an ethylene-hexene copolymer B, where ah percentages are based on the total weight of the composition and wherein ethylene homopolymer A has a viscosity number ≥110 cm3/g and ≤130 cm3/g and a density between ≥960.0 kg/m3 and ≤969.0 kg/m3. The polyethylene is suitable to be applied in the production of pipes.

High-Density Polyethylene Compositions, Method of Making the Same, Injection Molded Articles Made Therefrom, and Method of Making Such Articles

The instant invention is a high-density polyethylene composition, method of producing the same, injection molded articles made therefrom, and method of making such articles. The high-density polyethylene composition of the instant invention includes a first component, and a second component. The first component is a high molecular weight ethylene alpha-olefin copolymer having a density in the range of 0.920 to 0.946 g/cm3, and a melt index (I21.6) in the range of 1 to 15 g/10 minutes. The second component is a low molecular weight ethylene polymer having a density in the range of 0.965 to 0.980 g/cm3, and a melt index (I2) in the range of 30 to 1500 g/10 minutes. The high-density polyethylene composition has a melt index (I2) of at least 1, a density in the range of 0.950 to 0.960 g/cm3.

HIGH-DENSITY POLYETHYLENE COMPOSITIONS, METHOD OF MAKING THE SAME, INJECTION MOLDED ARTICLES MADE THEREFROM, AND METHOD OF MAKING SUCH ARTICLES

The instant invention is a high-density polyethylene composition, method of producing the same, injection molded articles made therefrom, and method of making such articles. The high-density polyethylene composition of the instant invention includes a first component, and a second component. The first component is a high molecular weight ethylene alpha-olefin copolymer having a density in the range of 0.920 to 0.946 g/cm, and a melt index (I) in the range of 1 to 15 g/10 minutes. The second component is a low molecular weight ethylene polymer having a density in the range of 0.965 to 0.980 g/cm, and a melt index (I) in the range of 30 to 1500 g/10 minutes. The high-density polyethylene composition has a melt index (I) of at least 1, a density in the range of 0.950 to 0.960 g/cm. The method of producing a high-density polyethylene composition includes the following steps: (1) introducing ethylene, and one or more alpha-olefin comonomers into a first reactor; (2) (co)polymerizing the ethylene in the presence of one or more alpha-olefin comonomers in the first reactor thereby producing a first component, wherein the first component being a high molecular weight ethylene alpha-olefin copolymer having a density in the range of 0.920 to 0.946 g/cm, and a melt index (I) in the range of 1 to 15 g/10 minutes; (3) introducing the first component and additional ethylene into a second reactor; (4) polymerizing the additional ethylene in the second reactor thereby producing a second component, wherein the second component being a low molecular weight ethylene polymer having a density in the range of 0.965 to 0.980 g/cm, and a melt index (I) in the range of 30 to 1500 g/10 minutes; and (5) thereby producing the high-density polyethylene composition, wherein the high-density polyethylene composition having a melt index (I) of at least 1, a density in the range of 0.950 to 0.960 g/cm. The injection molded articles according to instant invention comprise the above-described ...

ADHESION IMPROVER FOR CARBON-FIBER-REINFORCED RESIN COMPOSITION

An object of the present invention is to provide an adhesion improver for a carbon fiber-reinforced polyolefin-based resin composition that provides improved mechanical characteristics such as bending strength and bending elastic modulus. The adhesion improver is used for a carbon fiber-reinforced resin composition including carbon fibers and a polyolefin-based resin. The adhesion improver includes an acid-modified polyolefin-based resin unit and an epoxy resin unit. The acid-modified polyolefin-based resin unit and the epoxy resin unit are linked via an ester structure, and the epoxy resin unit includes a secondary hydroxy group.

POLYOLEFIN COMPOSITION PROVIDING MARKING BY FLUORESCENCE

The present invention is directed to a polyolefin composition comprising carbon black which shows fluorescence when irradiated with UV light. The polyolefin composition of the present invention comprises a polyolefin, carbon black in an amount of 0.25 to 1.0 wt %, an optical brightener in an amount of 0.001 to 0.1 wt %, and a UV agent. The present invention is further directed to a molded article comprising the polyolefin composition of the present invention. The present invention is further directed to a wire or cable comprising an outer layer comprising the polyolefin composition of the present invention. Finally, the present invention is directed to a method for detection of a polyolefin composition by UV light and to a method for detection of a molded article or a wire or cable by UV light.

Compositions for injection moulding

Use of a filled polymer resin in the manufacture of an article therefrom by injection moulding, a method of manufacturing an article by injection moulding a filled polymer resin, a method for enabling or improving the injection mouldability of a polymer resin comprising recycled polymer, wherein the polymer resin comprises recycled polymer and functional filler, the use of a functional filler in a polymer resin comprising recycled polymer to improve the injection mouldability of the polymer resin, an article of manufacture obtained by injection moulding a filled polymer resin, and a filled polymer resin.

HIGH FLOW POLYPROPYLENE WITH EXCELLENT MECHANICAL PROPERTIES

Polymer composition of a propylene copolymer and a high density polyethylene, wherein said composition has a MFR2 of at least 25.0 g/10 min and said propylene copolymer has a xylene cold soluble content in the range of 7.0 to below 20.0 wt.-%; a comonomer content in the range of 3.0 to 12.0 wt.-%; a shear thinning index (SHI 0/50) of at least 7.5; wherein further the xylene cold soluble fraction of the propylene copolymer has a comonomer content in the range of 25.0 to 45.0 wt.-%.

Shrink films and methods for making the same

A shrink film includes at least one layer of polyethylene. The layer has a thickness of about 1 mil to about 3 mil. Materials and methods for forming crosslinked shrink films via a blown film extrusion process are described.

POLYETHYLENE-BASED COMPOSITION AND BIAXIALLY ORIENTED POLYETHYLENE-BASED ARTICLES

A polyethylene-based composition may include an ethylene-based copolymer produced from ethylene and one or more C3-C10 alpha olefin comonomers, wherein the ethylene-based copolymer has: a density ranging from 945 kg/m3to 961 kg/m3according to ASTM D792, a melt flow rate (MFR2) ranging from 0.5 g/10 min to 3.0 g/10 min according to ASTM D1238 at 190° C./2.16 kg, a molecular weight distribution (Mw/Mn) ranging from 3 to 25, and a stress exponent (SEx) ranging from 1.0 to 1.8.

Stone based copolymer substrate

A stone based copolymer substrate includes calcium carbonate (CaCO3) from approximately fifty to eighty-five percent (50-85%) by weight and varying in size generally from 1.0 to 3.0 microns, high-density polyethylene (HDPE) from approximately two to twenty-five percent (2-25%) by weight and a biopolymer from approximately two to twenty-five percent (2-25%) by weight. The substrate may include a biodegradation additive from approximately three fourths of a percent to two percent (0.75-2%) by weight. By selectively adjusting the ranges of the substrate's components, various products can be made to replace current tree-based and plastic-based products. The substrate can be configured to be tear proof, water proof, fade resistant and fire retardant while utilizing less energy and producing less waste during its manufacture. In an exemplary embodiment of the invention, the stone used in the substrate includes limestone.

Polymer Compositions for Rotational Molding Applications

A polymer having a density of from about 0.94 g/cm 3 to about 0.96 g/cm 3 and a primary structure parameter 2 (PSP2 value) of greater than about 8.5, wherein an article formed from the polymer has an environmental stress crack resistance of equal to or greater than about 1000 hours when measured in accordance with ASTM D 1693 condition A. A polymer having at least one lower molecular weight component and at least one higher molecular weight component and having a PSP2 value of equal to or greater than about 8.5, wherein an article formed from the polymer has an environmental stress crack resistance of greater than about 1000 hours when measured in accordance with ASTM D 1693 condition A.

Sealant composition, method of producing the same

The instant invention is a sealant composition, method of producing the same, articles made therefrom, and method for forming such articles. The sealant composition according to the present invention comprises: (a) from 70 to 99.5 percent by weight of an ethylene/α-olefin interpolymer composition, based on the total weight of the sealant composition, wherein said ethylene/α-olefin interpolymer composition comprises an ethylene/α-olefin interpolymer, wherein ethylene/α-olefin interpolymer has a Comonomer Distribution Constant (CDC) in the range of from 15 to 250, and a density in the range of from 0.875 to 0.963 g/cm 3 , a melt index (I2) in a range of from 0.2 to 20 g/10 minutes, and long chain branching frequency in the range of from 0.02 to 3 long chain branches (LCB) per 1000C; (b) from 0.5 to 30 percent by weight of a propylene/α-olefin interpolymer composition, wherein said propylene/α-olefin interpolymer composition comprises a propylene/α-olefin copolymer or a propylene/ethylene/butene terpolymer, wherein said propylene/α-olefin copolymer has a crystallinity in the range of from 1 percent by weight to 30 percent by weight, a heat of fusion in the range of from 2 Joules/gram to 50 Joules/gram, and a DSC melting point in the range of 25° C. to 110° C.

Methods for Improving Multimodal Polyethylene and Films Produced Therefrom

A blown film composition including a first high density polyethylene component and a second high density polyethylene component, wherein the blown film contains a mixture of three or more discrete molecular weight distributions, and wherein the second high density polyethylene component has at least one more discrete molecular weight distribution than the first high density polyethylene component.

Process for preparing polyethylene blend comprising metallocene produced resins and ziegler-natta produced resins

A process for preparing a homogeneous polyethylene product can include producing a first polyethylene resin in the presence of a metallocene catalyst in a reactor. The first polyethylene resin can have a density of from 0.940 to 0.970 g/cm 3 . The first polyethylene resin can have a Low Molecular Weight (LMW) with an MI 2 of between 2 and 250 g/10 min. The process can include separately producing a second polyethylene resin in the presence of a Ziegler-Natta catalyst in a reactor. The second polyethylene resin can have a High Molecular Weight (HMW) with an MI 2 of between 0.01 and 15 g/10 min. The process can include physically blending together the first polyethylene resin and the second polyethylene resin to produce the homogeneous polyethylene product.

Hppe member and method of making a hppe member

The invention concerns a high performance polyethylene (HPPE) member comprising at least 5 wt-% of a radiopaque component, the HPPE member is biocompatible and the radiopaque component is a particulate at least partially arranged inside a HPPE filament of the HPPE member. Furthermore, the radiopaque component has a particle size of at most 1 μm, preferably the radiopaque component has a particle size if at most 0.5 μm. The invention also concerns a method of making the HPPE member and various medical devices and repair products comprising the HPPE member.

Bio-based mineral oil barrier coatings and films

According to an example aspect of the present invention, there is provided bio-based mineral oil barrier coatings and films usable for decreasing mineral oil migration, for example in food packaging materials, and thus improving the safety of the materials facing the mineral oil containing environment.

HALOGEN-FREE CROSSLINKABLE RESIN COMPOSITION, CROSS-LINKED INSULATION WIRE AND CABLE

A halogen-free crosslinkable resin composition includes a base polymer including a high density polyethylene, 30 to 50 parts by mass of an ethylene-acrylic ester-maleic anhydride terpolymer, 5 to 20 parts by mass of an ethylene-α-olefin copolymer modified with maleic anhydride, and 10 to 30 parts by mass of an ethylene-acrylic ester copolymer, and a metal hydroxide of which content is 120 to 200 parts by mass based on 100 parts by mass of the base polymer. 1. A halogen-free crosslinkable resin composition , comprising:a base polymer comprising a high density polyethylene, 30 to 50 parts by mass of an ethylene-acrylic ester-maleic anhydride terpolymer, 5 to 20 parts by mass of an ethylene-α-olefin copolymer modified with maleic anhydride, and 10 to 30 parts by mass of an ethylene-acrylic ester copolymer; anda metal hydroxide of which content is 120 to 200 parts by mass based on 100 parts by mass of the base polymer.2. The halogen-free crosslinkable resin composition according to claim 1 , wherein the ethylene-α-olefin copolymer modified with maleic anhydride has a glass transition point (Tg) of not more than −55 degrees C. by DSC method.3. The halogen-free crosslinkable resin composition according to claim 1 , wherein the ethylene-acrylic ester copolymer has an acrylic ester content of 10 to 30% by mass.4. The halogen-free crosslinkable resin composition according to claim 1 , wherein the metal hydroxide comprises a magnesium hydroxide.5. A cross-linked insulation wire claim 1 , comprising:a conductor; anda first insulating layer covering a periphery of the conductor,{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'wherein the first insulating layer comprises the halogen-free crosslinkable resin composition according to .'}6. The cross-linked insulation wire according to claim 5 , further comprising a second insulating layer directly covering the conductor claim 5 ,wherein the second insulating layer comprises the halogen-free crosslinkable resin composition ...

HIGH FLOW POLYPROPYLENE WITH EXCELLENT MECHANICAL PROPERTIES

Polymer composition of a propylene copolymer and a high density polyethylene, wherein said composition has a MFRof at least 25.0 g/10 min and said propylene copolymer has a xylene cold soluble content in the range of 7.0 to below 20.0 wt.-%; a comonomer content in the range of 3.0 to 12.0 wt.-%; a shear thinning index (SHI 0/50) of at least 7.5; wherein further the xylene cold soluble fraction of the propylene copolymer has a comonomer content in the range of 25.0 to 45.0 wt.-%. 1. A thin wall packaging article comprising a polymer composition having a melt flow rate MFR2 (230° C.) measured according to ISO 1133 of at least 25.0 g/10 min , the polymer composition comprising: (a1) a xylene cold soluble (XCS) content determined according to ISO 16152 (25° C.) in the range of 7.0 to below 20.0 wt.-%;', '(a2) a comonomer content in the range of 3.0 to 12.0 wt.-%;', '(a3) a shear thinning index (SHI 0/50) of at least 7.5;', 'wherein further', '(a4) the xylene cold soluble (XCS) fraction of the heterophastic propylene copolymer (HECO) has a comonomer content in the range of 25.0 to 45.0 wt.-%;, '(a) a heterophastic propylene copolymer (HECO) having'}(b) a high density polyethylene (HDPE); and(c) optionally, up to 2 wt.-% of a polyolefine (PO)wherein the heterophastic propylene copolymer (HECO), the high density polyethylene (HPDE) and the optional polyolefin (PO) are the only polymer components in the polymer composition.4. The thin wall packaging article according to claim 1 , wherein the intrinsic viscosity (IV) of the xylene cold soluble (XCS) fraction of the heterophastic propylene copolymer (HECO) measured according to DIN ISO 1628/1 (in decalin at 135° C.) is in the range of 1.8 to 3.0 dl/g.5. The thin wall packaging article according to claim 1 , wherein the heterophastic propylene copolymer (HECO) comprises(a) a propylene homopolymer (H-PP), and(b) an elastomeric propylene copolymer (EC).7. The thin wall packaging article according to claim 5 , wherein the ...

BARRIER FILM FOR FOOD PACKAGING

Barrier films are prepared from a blend of two high density polyethylene blend components and a high performance organic nucleating agent. The two high density polyethylene blend components have substantially different melt indices. Large reductions in the moisture vapor transmission rate of the film are observed in the presence of the nucleating agent when the melt indices of the two blend components have a ratio of greater than 10/1. The resulting barrier films are suitable for the preparation of packaging for dry foods such as crackers and breakfast cereals. 115-. (canceled)16. A method for improving the barrier properties of a polyethylene film , said method comprising the steps of converting into a film a mixture comprising;{'sub': '2', 'I) from about 5 to about 60 weight percent, based on the total weight of said mixture, of a blend component a), comprising a first high density polyethylene having a melt index, I;'}{'sub': '2', 'II) from about 95 to about 40 weight percent, based on the total weight of said mixture, of a blend component b), comprising a second high density polyethylene having a melt index I′, and;'}III) from 100 to 3,000 ppm of a nucleating agent, comprising a calcium salt of 1,2 cyclohexanedicarboxylic acid;{'sub': 2', '2, 'wherein, a melt index ratio, defined by dividing said melt index, I, of said blend component a) by said melt index, I′′, of blend component b), is from about 12 to about 19;'}wherein each of said blend component a) and said blend component b) have a density from about 0.950 to about 0.975 g/cc;wherein said mixture has a melt index from about 0.5 to about 4 grams/10 minutes;wherein the water vapor transmission rate of said polyethylene film is improved, by being from about 19 percent lower to about 25 percent lower relative to a control polyethylene film of the same composition but not containing said nucleating agent, and;wherein melt index is measured according to ASTM D1238 (2.16 kg load and 190° C.), density is measured ...

PLANT FIBER-REINFORCED THERMOPLASTIC COMPOSITION

The present invention is directed to plant fiber-reinforced thermoplastic compositions and a method for reinforcing thermoplastic resins. The present invention provides a use for the cellulose portion of a plant material, which is the portion left over after processing the selected plant materials to separate the hemi-cellulose and lignin from the cellulose. 1. A reinforced thermoplastic resin composition comprising:a) a thermoplastic material; andb) from about 1 to about 60 weight percent cellulose fibers based on the weight of the composition, the cellulose fibers obtained by the separation of the cellulose fiber fraction from hemi-cellulose and lignin fractions of flax in a decortication process that does not include hammering or bending/flexing the flax.2. The composition of wherein the cellulose fibers and the thermoplastic are molecularly bonded to one another.3. The composition of wherein the thermoplastic is a polyolefin or polyamide or an engineering plastic.4. The composition of wherein the thermoplastic material is polypropylene or acrylonitrile butadiene styrene.5. The composition of wherein the thermoplastic material and cellulose fibers are homogeneously dispersed throughout the composition. This application is a divisional Non-Provisional patent application which claims priority to U.S. Non-Provisional patent application Ser. No. 14/697,079, filed Apr. 27, 2015, entitled “PLANT FIBER-REINFORCED THERMOPLASTIC RESIN COMPOSITION,” which is a continuation application of U.S. Non-Provisional patent application Ser. No. 13/648,738, filed on Oct. 10, 2012, entitled “PLANT FIBER-REINFORCED THERMOPLASTIC RESIN COMPOSITION,” which are all expressly incorporated by reference herein in their entirety.The present invention relates to a thermoplastic composite resin composition which includes plant fibers and a method for reinforcing thermoplastic resin compositions. More particularly, the cellulose component of plat material remaining after the removal of the hemi ...

POLYOLEFIN COMPOSITION

The invention relates to a polyolefin composition comprising A. at least a homopolymer or copolymer of ethylene or propylene and B. cholestanyl ferulate. The composition can be used in the production of articles such as a pipe, cap and closure, film, food contact packaging, biomedical article, health care article and pharmaceutical article. 1. A polyolefin composition comprising:A. at least a homopolymer or copolymer of ethylene or propylene andB. cholestanyl ferulate.2. The composition according to characterised in that the homo- or copolymer ishigh density polyethylene, multimodal high density polyethylene, low density polyethylene, linear low density polyethylene or polypropylene.3. The composition according to characterised in that the homo- or copolymer is bimodal polyethylene.4. An article produced with the polyolefin composition according to .5. The article according to wherein the article is a pipe claim 4 , cap and closure claim 4 , film claim 4 , food contact packaging claim 4 , biomedical article claim 4 , health care article or pharmaceutical article.6. The pipe according to characterised in that the composition comprises a phenolic compound and organic phosphite and/or phosphonite.7. The composition according to characterised in that the homo- or copolymer is high density polyethylene.8. The composition according to characterised in that the homo- or copolymer is multimodal high density polyethylene.9. The composition according to characterised in that the homo- or copolymer is low density polyethylene.10. The composition according to characterised in that the homo- or copolymer is linear low density polyethylene or polypropylene.11. An article produced with the polyolefin composition according to .12. The article according to wherein the article is a pipe claim 11 , cap and closure claim 11 , film claim 11 , food contact packaging claim 11 , biomedical article claim 11 , health care article or pharmaceutical article.13. The pipe according to ...

FLEXIBLE PARTICLE-LADEN ELASTOMERIC TEXTILES WITH PENETRATION RESISTANCE

Penetration-resistant composites and methods of forming penetration-resistant composites are described herein. The penetration-resistant composites include a woven or non-woven substrate; and an elastomeric binder covering at least a portion of the substrate. The elastomeric binder includes a polymeric base and particles dispersed within the polymeric base. The particles include one or more of amorphous silica particles, fumed silica particles, boron nitride particles, calcium chloride particles, aluminum oxide particles, calcium carbonate particles, graphite particles, metallic glass particles and silicon carbide particles. The particles have a concentration in a range of about 0 wt. % to about 80 wt. % of the elastomeric binder and have a size in a range of about 1 nanometers to 100 micrometers. 1. A penetration-resistant composite comprising:a woven or non-woven substrate; and a polymeric base; and', 'particles dispersed within the polymeric base, the particles including one or more of amorphous silica particles, fumed silica particles, boron nitride particles, calcium chloride particles, aluminum oxide particles, calcium carbonate particles, graphite particles, metallic glass particles and silicon carbide particles, the particles having a concentration in a range of about 0 wt. % to about 80 wt. % of the elastomeric binder and being of a size in a range of about 1 nanometers to 100 micrometers., 'an elastomeric binder covering at least a portion of the substrate, the elastomeric binder including2. The penetration-resistant composite of claim 1 , wherein the particles have a concentration in a range of about 50 wt. % to about 80 wt. % of the elastomeric binder.3. The penetration-resistant composite of claim 2 , wherein the particle concentration is higher than a critical limit to cause jamming of the particles within the elastomeric binder when the composite is compressed.4. The penetration-resistant composite of claim 1 , wherein the polymeric base is selected ...

ETHYLENE-BASED POLYMER HAVING EXCELLENT LONG-TERM PRESSURE RESISTANCE CHARACTERISTICS, AND PIPE USING SAME

Provided are an ethylene-based polymer having excellent long-term pressure resistance characteristics and a pipe using the ethylene-based polymer. The ethylene-based polymer satisfies the balance of mechanical characteristics and excellent molding processability, as compared with a conventional ethylene-based polymer. Also provided are an ethylene-based polymer having a wide molecular weight distribution and a small lamellar thickness, thereby increasing tie molecules and obtaining excellent long-term pressure resistance characteristics, and a pipe using the same. 1. A high-density ethylene-based polymer produced by polymerization of ethylene and at least one monomer selected from the group consisting of α-olefin-based monomers ,{'sup': 3', '3, 'wherein a density is 0.910 g/cmto 0.960 g/cm,'}an MI is 0.1 g/10 min to 10 g/10 min,a weight average molecular weight (g/mol) is 60,000 to 250,000,a molecular weight distribution (Mw/Mn) is 4 to 6, andan average thickness of lamellar is 1 nm to 15 nm and a lamellar distribution (Lw/Ln) is 1.1 or more.2. The high-density ethylene-based polymer of claim 1 , wherein 50% or more of the lamellar in the high-density ethylene-based polymer has a thickness of less than 1 nm to 10 nm.3. The high-density ethylene-based polymer of claim 1 , wherein less than 40% to 50% of the lamellar in the high-density ethylene-based polymer has a thickness in a range of less than 10 nm to 15 nm.4. The high-density ethylene-based polymer of claim 1 , wherein the high-density ethylene-based polymer comprises a long chain branch (LCB).5. The high-density ethylene-based polymer of claim 1 , wherein the α-olefin-based monomers comprise at least one selected from the group consisting of propylene claim 1 , 1-butene claim 1 , 1-pentene claim 1 , 4-methyl-1-pentene claim 1 , 1-hexene claim 1 , 1-heptene claim 1 , 1-octene claim 1 , 1-decene claim 1 , 1-undecene claim 1 , 1-dodecene claim 1 , 1-tetradecene claim 1 , 1-hexadecene claim 1 , and 1-aitosen.6. ...

METHODS FOR DYEING ULTRA-HIGH MOLECULAR WEIGHT POLYETHYLENE AND DYED ARTICLES MADE BY THE SAME

Dyed articles, such as sutures, and methods for making the same by treating with a supercritical liquid are disclosed. The articles may be made at least partially, if not entirely, from ultra-high molecular weight polyethylene (UHMWPE). The dye may be D&C Violet #2. 1. A method of dyeing an article comprising an ultra-high molecular weight polyethylene (UHMWPE) , comprising contacting the article with a supercritical liquid and D&C Violet #2.2. The method of claim 1 , further comprising applying a pressure from about 3 claim 1 ,600 psi to about 3 claim 1 ,800 psi.3. The method of claim 1 , further comprising applying a temperature from about 110° C. to about 130° C.4. The method of claim 3 , wherein the temperature is maintained for about 90 to about 180 minutes.5. The method of claim 4 , wherein the dyed article has a color contrast of at least about 90%.6. The method of claim 1 , wherein the article is a suture.7. A dyed article made by the process of . This application claims the benefit of U.S. Provisional Application No. 62/275,268, filed on Jan. 6, 2016, the entire contents of which are incorporated by reference herein in entirety.The invention relates to a process for dyeing an article comprising an ultra-high weight polyethylene, with D&C Violet #2. A supercritical liquid is applied to the article with the dye at a specified temperature and pressure to yield the desired dyed article.In a process known in the art, highly oriented ultra-high molecular weight polyethylene fibers are contacted with a dye bath at a temperature of 100-130° C. for 20-60 minutes, with the dye bath consisting of an aqueous dispersion of a finely ground mixture of specific dyes and surfactants whereupon the moulded article is washed and dried. For good dyeing results the fibers are preferably modified by means of a plasma or corona treatment prior to the dyeing operation. An important drawback of the known process is that the dyed fibers, particularly if they are not first modified by ...

ENVIRONMENT-FRIENDLY MATERIAL, MANUFACTURING METHOD OF WINDOW COVERING SLAT, AND WINDOW COVERING SLAT

An environment-friendly material includes 50 wt % to 70 wt % of inorganic mineral powder, 20 wt % to 45 wt % of polyolefin, and 5 wt % to 15 wt % of auxiliary agent. The inorganic mineral powder contains calcium carbonate; the polyolefin may be linear low density polyethylene, low density polyethylene, medium density polyethylene, high density polyethylene, or polypropylene; and the auxiliary agent may be polyolefin elastomer, maleic anhydride grafted polyolefin elastomer, or maleic anhydride grafted polyethylene. The disclosure also provides a manufacturing method of window covering slat using the environment-friendly material and a window covering slat manufactured by the method. 1. An environment-friendly material comprising:50 wt % to 70 wt % of inorganic mineral powder comprising calcium carbonate;20 wt % to 45 wt % of polyolefin selected from a group consisting of liner low density polyethylene, low density polyethylene, medium density polyethylene, high density polyethylene, and polypropylene; and5 wt % to 15 wt % of auxiliary agent selected from a group consisting of polyolefin elastomer, maleic anhydride grafted polyolefin elastomer, and maleic anhydride grafted polyethylene.2. The environment-friendly material as claimed in claim 1 , wherein said environment-friendly material comprises 60 wt % to 65 wt % of said inorganic mineral powder.3. The environment-friendly material as claimed in claim 1 , wherein said environment-friendly material comprises 65 wt % of said inorganic mineral powder claim 1 , 30 wt % of said polyolefin claim 1 , and 5 wt % of said auxiliary agent.4. The environment-friendly material as claimed in claim 1 , wherein said polyolefin is liner low density polyethylene claim 1 , high density polyethylene claim 1 , or polypropylene.5. The environment-friendly material as claimed in claim 1 , wherein said polyolefin is liner low density polyethylene or polypropylene.6. The environment-friendly material as claimed in claim 1 , wherein said ...

Polymer Composition for Use in Cables

A polymer composition that comprises an olefinic polymer, a flame retardant that includes a halogen-free mineral filler, and a compatibilizing agent is provided. The halogen-free mineral filler constitutes from about 20 wt. % to about 80 wt. % of the composition. The composition may exhibit a degree of water uptake of about 5 wt. % or less after being immersed in water for seven days at a temperature of 23° C.

POLAR GROUP-CONTAINING OLEFIN COPOLYMER, MULTINARY POLAR OLEFIN COPOLYMER, OLEFIN RESIN COMPOSITION, AND ADHESIVE MATERIAL, LAMINATE, AND OTHER APPLICATION PRODUCTS USING SAME

The present invention relates to a polar group-containing olefin copolymer (A′) which is produced through polymerization using a transition metal catalyst, which has a weight-average molecular weight falling within a specific range and which contains a polar group-containing monomer within a specific range; a multinary polar olefin copolymer (A″) indispensably containing a polar monomer component that has a norbornene skeleton and a carboxyl group or an acid anhydride group and having three or more types of monomer units; and a resin composition (C) containing a specific amount of a polar group-containing olefin copolymer (A) and a specific amount of an olefin resin (B). 1: A polar group-comprising olefin copolymer obtained by copolymerization of at least one nonpolar monomer selected from the group consisting of ethylene and α-olefins having from 3 to 20 carbon atoms , and a polar group-comprising monomer comprising a carboxyl group or a dicarboxylic acid anhydride group , in the presence of a transition metal catalyst , wherein the olefin copolymer is a random copolymer and satisfies the following requirements 1) and 2):1) an amount of structural unit derived from the polar group-comprising monomer in the olefin copolymer is from 0.001 to 10 mol %; and2) a weight-average molecular weight (Mw) of the copolymer, as obtained through gel permeation chromatography (GPC), is from 45,000 to 1,000,000.2: The olefin copolymer according to claim 1 , wherein an amount of structural unit derived from the polar group-comprising monomer contained inside the molecular chain is larger than an amount of structural unit derived from the polar group-comprising monomer contained at an end of the molecular chain.3: The olefin copolymer according to claim 1 , wherein a ratio (Mw/Mn) of the weight-average molecular weight (Mw) to a number-average molecular weight (Mn) claim 1 , as obtained through gel permeation chromatography claim 1 , falls within a range of from 1.5 to 3.5.4: The ...

POLYOLEFIN MICROPOROUS FILM AND METHOD FOR PRODUCING SAME

A polyolefin microporous membrane is produced by forming a gel-like molding using a polyolefin resin containing polypropylene, and stretching the molding in at least one direction, followed by washing, the polyolefin microporous membrane having an injection of electrolyte of 20 seconds or less and a uniform polypropylene distribution in at least one plane perpendicular to the thickness direction. 16-. (canceled)7. A polyolefin microporous membrane produced by forming a gel-like molding using a polyolefin resin containing polypropylene , and stretching the molding in at least one direction , followed by washing , the polyolefin microporous membrane having an injection of electrolyte of 20 seconds or less and a uniform polypropylene distribution in at least one plane perpendicular to the thickness direction.8. The polyolefin microporous membrane according to claim 7 , wherein the polyolefin resin contains polypropylene having a weight average molecular weight of more than 50 claim 7 ,000 but less than 300 claim 7 ,000 in an amount of 0.5% by mass or more but less than 5% by mass.9. The polyolefin microporous membrane according to claim 7 , having a normalized PP/PE ratio whose average is 0.5 or more claim 7 , whose standard deviation is 0.2 or less claim 7 , and whose kurtosis is 1.0 or less claim 7 , as measured by Raman spectroscopy in at least one plane perpendicular to the thickness direction.10. The polyolefin microporous membrane according to claim 7 , wherein weight average molecular weight of polypropylene is more than 50 claim 7 ,000 but less than 150 claim 7 ,000.11. The polyolefin microporous membrane according to claim 7 , containing an ultra-high molecular weight polyethylene having a mass average molecular weight of 1×10or more in an amount of 1 to 50% by weight based on 100% by mass of a total amount of the polyolefin resin.12. A method of producing the polyolefin microporous membrane according to claim 7 , comprising:{'sup': '6', '(a) melt blending a ...

Separator having high tensile strength, manufacturing method therefor, and secondary battery including same

The present invention relates to a method for manufacturing a separator for batteries, a separator manufactured by the method, and a secondary battery including the separator. More specifically, the present invention relates to a method for manufacturing a separator having enhanced tensile strength by performing a shutdown process stopping a stretch during a process of stretching a base film of the separator.

RECYCLABLE OLEFIN BASED HOT MELT PRESSURE SENSITIVE ADHESIVE LABEL AND METHODS OF MAKING AND USING THEREOF

A pressure sensitive hot melt adhesive is provided including at least one olefin block copolymer, a hydrogenated hydrocarbon tackifier, and a plasticizer. The adhesive is free from any oil containing constituents and the pressure sensitive label with the adhesive exhibits desired adhesion performance in low temperature as well as in normal temperature for a host of different substrates. The adhesive also resistant to yellowing, water-whitening and is non-swelling. The adhesive and the label enables recycling in recycling streams when the face material and/or substrate being labeled is also of olefin based material. 1. A hot melt pressure sensitive adhesive (HMPSA) , comprising:at least one olefin block copolymer;a hydrogenated hydrocarbon tackifier; anda plasticizer;wherein the adhesive is free from any oil containing constituents.2. The HMPSA of claim 1 , wherein the adhesive comprises from 20 wt % to 40 wt % of a olefin block copolymer.3. The HMPSA of claim 1 , wherein the olefin block copolymer includes at least one crystalline ethylene block and another block including at least one C3-C20 alpha-olefin.4. The HMPSA of claim 1 , wherein the at least one crystalline ethylene block includes less than about 30% by weight of the olefin block copolymer.5. The HMPSA of claim 1 , wherein the olefin block copolymer has a density in the range from 0.8624 g/cm3 to 0.8675 g/cm3 and a melt temperature in the range from 115° C. to 120° C.6. The HMPSA of claim 1 , wherein the olefin block copolymer includes a fully hydrogenated olefin block copolymer.7. The HMPSA of claim 1 , wherein the olefin block copolymer has a glass transition temperature within a range of from about −60° C. to about −40° C.8. The HMPSA of claim 1 , wherein the adhesive comprises from 35 wt % to 55 wt % of a tackifier.9. The HMPSA of claim 1 , wherein the adhesive comprises from 10 wt % to 35 wt % of plasticizer.10. The HMPSA of claim 1 , wherein the adhesive demonstrates a glass transition temperature ( ...

A method for manufacturing a packaging material

The invention relates to a polymer-coated packaging material, a method of manufacturing the same, and products, such as a disposable drinking cup, made from the material. The packaging material comprises a fibrous base ( 1 ) of paper or board and an extruded polymer layer ( 2 ) containing a blend of (i) 0 to 25 wt-% of a branched low-density polyethylene (LDPE)with a lower melt viscosity and (ii) 75 to 90 wt-% of a linear low-density polyethylene (LLDPE) with a higher melt viscosity. The packaging material of the invention comprises multilayer coatings, e.g. an adhesive innermost and a heat-sealable outermost layer ( 2, 4 ) of said blend and a vapour barrier middle layer ( 3 ) of at most 90 wt-% of high density polyethylene (HDPE). The layers ( 2, 3, 4 ) are brought and adhered to the fibrous base ( 1 ) by coextrusion. To maximize renewability of the materials HDPE and LLDPE as used for the structure are of biologic origin.

Bimodal high-density polyethylene resins and compositions with improved properties and methods of making and using the same

Bimodal high-density polyethylene polymer compositions with increased high melt strength and good processability. The compositions comprise a base resin having a density of about 945 kg/m3 to about 955 kg/m3, and an ethylene polymer (A) having a density of at least about 968 kg/m3, in an amount ranging from 45% to 55% by weight and an ethylene polymer (B) having a density lower than the density of polymer (A). The composition has a complex viscosity at a shear rate of 0.01 rad/s ranging from about 200 to 450 kPa·s and a complex viscosity at a shear rate of 100 rad/s ranging from about 1900 to 2500 Pa·s. Articles made from these compositions, such as pipes and fittings achieve long-term oxidative resistance and have a low wall thickness variability while maintaining high production output.

Lightweight particle filler material

A lightweight particle composition includes a plurality of lightweight particles that are one of enclosed or loose. The plurality of lightweight particles include one of an inorganic or organic composition including a bulk density within a range from about 0.001 g/cc to about 1.5 g/cc, and a particle size within a range from about 0.01 microns to about 90 millimeters (mm). An interstitial void space between the plurality of lightweight particles includes a total of less than about 70% of a volume of the plurality of lightweight particles.

SURFACE PROTECTION FILM

A surface protection film includes an adhesion layer that includes a blend of a first hydrogenated styrene block copolymer, a second hydrogenated styrene block copolymer different from the first hydrogenated styrene block copolymer, and polyethylene. An Adhesion Build Value of the surface protection film is less than 2.5 after the adhesion layer has been attached to a textured polycarbonate substrate and heated to 90° C. for 10 minutes. 1. A surface protection film comprising:an adhesion layer comprising a blend of a first hydrogenated styrene block copolymer, a second hydrogenated styrene block copolymer different from the first hydrogenated styrene block copolymer, and polyethylene,wherein an Adhesion Build Value of the surface protection film is less than 2.5 after the adhesion layer has been attached to a textured polycarbonate substrate and heated to 90° C. for 10 minutes.2. The surface protection film according to claim 1 , wherein the Adhesion Build Value of the surface protection film is less than 2.0 after the adhesion layer has been attached to a textured polycarbonate substrate and heated to 90° C. for 10 minutes.3. The surface protection film according to claim 1 , wherein the Adhesion Build Value of the surface protection film is less than 1.5 after the adhesion layer has been attached to a textured polycarbonate substrate and heated to 90° C. for 10 minutes.4. The surface protection film according to claim 1 , wherein the first hydrogenated styrene block copolymer comprises about 34 wt % styrene and has a Melt Flow Rate at 230° C. and 2.16 kg of about 48 grams/10 minutes.5. The surface protection film according to claim 1 , wherein the second hydrogenated styrene block copolymer comprises about 65 wt % styrene and has a Melt Flow Rate at 230° C. and 2.16 kg of about 0.4 grams/10 minutes.6. The surface protection film according to claim 1 , wherein the adhesion layer blend comprises a total of 25 wt %-50 wt % hydrogenated styrene block copolymer claim 1 ...

THERMOPLASTIC ELASTOMER COMPOSITION AND USE THEREOF

This invention relates to a thermoplastic elastomer composition comprising 5 to 30 parts by mass of ethylene-α-olefin-non-conjugated polyene copolymer (A), 20 to 40 parts by mass of crystalline olefin-based resin (B) having a density of 0.90 g/cmor more and 0.92 g/cmor less, 20 to 40 parts by mass of high-density polyethylene (C) having a density of 0.94 g/cmor more and 0.97 g/cmor less, 5 to 12 parts by mass of ethylene-α-olefin copolymer (D) consisting of ethylene and α-olefin having 3 to 12 carbon atoms, and 5 to 9 parts by mass of silicone compound (E) (with the total amount of (A), (B), (C), (D) and (E) being 100 parts by mass), and to an automotive glass run channel formed by the thermoplastic elastomer composition. 1. A thermoplastic elastomer composition comprising 5 to 30 parts by mass of ethylene-α-olefin-non-conjugated polyene copolymer (A) , 20 to 40 parts by mass of crystalline olefin-based resin (B) having a density of 0.90 g/cmor more and 0.92 g/cmor less , 20 to 40 parts by mass of high-density polyethylene (C) having a density of 0.94 g/cmor more and 0.97 g/cmor less , 5 to 12 parts by mass of ethylene-α-olefin copolymer (D) consisting of ethylene and α-olefin having 3 to 12 carbon atoms , and 5 to 9 parts by mass of silicone compound (E) (with the total amount of (A) , (B) , (C) , (D) and (E) being 100 parts by mass).2. The thermoplastic elastomer composition according to claim 1 , wherein the silicone compound (E) comprises a silicone oil and a high-molecular-weight silicone.3. The thermoplastic elastomer composition according to claim 1 , wherein the ethylene-α-olefin copolymer (D) comprises one or more selected from ethylene-octene rubber and ethylene-butene rubber.4. An automotive glass run channel formed from the thermoplastic elastomer composition according to .5. The thermoplastic elastomer composition according to claim 2 , wherein the ethylene-α-olefin copolymer (D) comprises one or more selected from ethylene-octene rubber and ethylene- ...

CONDUCTIVE POLYAMIDE RESIN COMPOSITION

Disclosed is a conductive polyamide resin composition that excels not only in electroconductivity, but also in fuel resistance, particularly resistance against alcohol-containing fuel, and further excels in fluidity and moldability, and is capable of yielding a molded article with high impact resistance, the conductive polyamide resin composition including: 84 to 40% by mass of a polyamide resin (A); 5 to 30% by mass of conductive carbon black (B); 3 to 30% by mass of an ethylene-α-olefin copolymer (C) that has a reactive functional group capable of reacting with a terminal group of polyamide resin and/or an amido group on a principal chain of polyamide resin; and 1 to 20% by mass of a conductive polyethylene resin (D). 1. A conductive polyamide resin composition comprising:84 to 40% by mass of a polyamide resin (A);5 to 30% by mass of conductive carbon black (B);3 to 30% by mass of an ethylene-α-olefin copolymer (C) that has a reactive functional group capable of reacting with a terminal group of polyamide resin and/or an amido group on a principal chain of polyamide resin; and1 to 20% by mass of a conductive polyethylene resin (D),the conductive polyamide resin composition satisfying characteristics (i) and (ii) below:{'sup': 5', '7, '(i) a flat plate (100 mm×100 mm×2 mm (thickness)) obtained by injection molding of the conductive polyamide resin composition shows an initial volume resistivity less than or equal to 1×10Ω·cm, and the flat plate after exposed to CM15 fuel for 168 hours shows a volume resistivity less than or equal to 1×10Ω·cm; and'}{'sup': '2', '(ii) a test piece obtained by injection molding of the conductive polyamide resin composition shows a Charpy impact strength at −40° C. greater than or equal to 2.0 KJ/m.'}2. The conductive polyamide resin composition according to claim 1 , wherein the conductive polyamide resin composition satisfies characteristic (iii) below:(iii) showing a melt index, measured at 250° C. under 10 kgf load, greater than or ...

PROTECTIVE TUBE FOR COIL SPRING AND METHOD FOR MANUFACTURING THE SAME

A protective tube for a coil spring and a method for manufacturing the same are disclosed herein. The protective tube for a coil spring is manufactured by: mixing 40-70 parts by weight of a thermoplastic elastomer, 20-40 parts by weight of a thermoplastic resin, 0.2-5 parts by weight of an antioxidant, and 0.2-5 parts by weight of a crosslinking agent to obtain a mixture; pelletizing the mixture to obtain pellets; extrusion-molding the pellets into a tube; crosslinking the tube by radiation; enlarging the diameter of the crosslinked tube while forming the tube into a spiral shape by heating; and setting the enlarged-diameter tube by cooling. 1. A protective tube for a coil spring , which is manufactured by: mixing 40-70 parts by weight of a thermoplastic elastomer , 20-40 parts by weight of a thermoplastic resin , 0.2-5 parts by weight of an antioxidant , and 0.2-5 parts by weight of a crosslinking agent to obtain a mixture; pelletizing the mixture to obtain pellets; extrusion-molding the pellets into a tube; crosslinking the tube by radiation; enlarging a diameter of the crosslinked tube while forming the tube into a spiral shape by heating; and setting the enlarged-diameter tube by cooling.2. The protective tube of claim 1 , wherein the thermoplastic elastomer is one or more selected from the group consisting of a polyolefin-based thermoplastic elastomer (TPO) claim 1 , a polystyrene-based thermoplastic elastomer (TPS) claim 1 , a polyimide-based thermoplastic elastomer (TPA) claim 1 , a polyurethane-based thermoplastic elastomer (TPU) claim 1 , a polyester-based thermoplastic elastomer (TPC) claim 1 , and a thermoplastic vulcanizate (TPV).3. The protective tube of claim 1 , wherein the thermoplastic resin is one or more selected from the group consisting of polyvinyl chloride-based resin claim 1 , polyamide-based resin claim 1 , polyethylene-based resin claim 1 , polyester-based resin claim 1 , polycarbonate-based resin claim 1 , polystyrene-based resin claim 1 , ...

METHOD AND SYSTEMS FOR TRANSPORTING BITUMEN IN SOLIDIFIED FORM

A solid bitumen pellet, including a mixture of bitumen and an additive, where the additive operates to increase the viscosity of the mixture. Optionally, the pellet includes a protective shell. 1. A solid pellet comprising a shell enclosing a core ,the core including crude oil refinery feedstock which is suitable for use as a feedstock to an oil refinery to separate into constituents that can be used as fuels, lubricants and feedstocks in petrochemical processes,wherein the shell constitutes a leak proof barrier configured to prevent one or more of the constituents of the crude oil from which a fuel can be derived by a refining process at the oil refinery from oozing out of the pellet, and wherein the pellet when subjected to a crush-resistance test, manifests a probability of failure per pellet that does not exceed 0.25 when the height of the load of pellets is of 1 meter.2. The solid pellet according to claim 1 , wherein the shell includes a material that is separable from the core such that the crude oil refinery feedstock maintains compatibility with the oil refinery to allow separation of the crude oil refinery feedstock into said constituents.3. The solid pellet according to claim 2 , wherein the pellet when subjected to a crush-resistance test claim 2 , manifests a probability of failure per pellet that does not exceed 0.25 when the height of the load of pellets is of 5 meters.4. The solid pellet according to claim 2 , wherein the pellet when subjected to a crush-resistance test claim 2 , manifests a probability of failure per pellet that does not exceed 0.25 when the height of the load of pellets is of 10 meters.5. The solid pellet according to claim 2 , wherein the pellet when subjected to a crush-resistance test claim 2 , manifests a probability of failure per pellet that does not exceed 0.25 when the height of the load of pellets is of 20 meters.6. The solid pellet according to claim 2 , wherein the pellet when subjected to a crush-resistance test claim 2 ...

GERM-REPELLENT MATERIAL

The present invention provides a germ-repellent polymer composition comprising: a base polymer selected from one or more of polyethylene, polypropylene, poly(lactic acid), polyhydroxylalkanoates, or copolymers or mixtures thereof; a germ-repelling modifier selected from a glycerol ester; and a nucleating agent. 1. A germ-repellent polymer composition comprising:a base polymer selected from one or more of polyethylene, polypropylene, poly(lactic acid), polyhydroxylalkanoates, or copolymers or mixtures thereof, wherein at least one candidate of the base polymer is bio-derived polyethylene;a germ-repelling modifier selected from a glycerol ester, wherein the germ-repelling modifier comprises 5 to 10 weight percent of the germ-repellent polymer composition;a nucleating agent,{'sup': '−', 'wherein the base polymer is modified by the germ-repelling modifier in order to have an absorption band of hydroxyl bond at about 3300 cm in an ATR-FTIR spectrum of the modified base polymer surface such that the germ repelling performance of the germ-repellent polymer is over 85%.'}2. The germ-repellent polymer composition of claim 1 , wherein the base polymer is low-density polyethylene.3. The germ-repellent polymer composition of claim 1 , wherein the base polymer is high-density polyethylene.4. The germ-repellent polymer composition of claim 1 , wherein the glycerol ester is glycerol monostearate (GMS).5. The germ-repellent polymer composition of claim 1 , wherein the glycerol ester is a mixture of stearates of monoglyceride and diglyceride (MDG).6. The germ-repellent polymer composition of claim 2 , wherein the nucleating agent is a calcium ion-based nucleating agent.7. The germ-repellent polymer composition of claim 3 , wherein the nucleating agent is a calcium ion-based nucleating agent.10. (canceled)11. The germ-repellent polymer composition of claim 1 , wherein the nucleating agent comprises 0.1 to 1.0 phr of the polymer composition.12. The germ-repellent polymer composition ...

Polyethylene composition and film

In some embodiments disclosed herein are polyethylene composition including a first polyethylene which is an ethylene copolymer having a weight average molecular weight of from 70,000 to 250,000 and a molecular weight distribution Mw/Mn of <2.3, a second polyethylene which is an ethylene copolymer or homopolymer having a weight average molecular weight of less than 75,000 and a molecular weight distribution Mw/Mn of <2.3, a third polyethylene which is an ethylene copolymer or homopolymer having a weight average molecular weight of less than 75,000 and a molecular weight distribution Mw/Mn of <2.3, and a fourth polyethylene which is an ethylene copolymer or homopolymer having a weight average molecular weight of from 100,000 to 250,000 and a molecular weight distribution Mw/Mn of >2.3, where the first polyethylene has more short chain branching than the second polyethylene or the third polyethylene. The polyethylene composition may have a soluble fraction in a CEF analysis of at least 7.5 weight percent. Film made from the polyethylene composition may have a machine direction 1% secant modulus of ≥200 MPa (at a film thickness of about 1 mil) and an oxygen transmission rate (OTR) of ≥550 cm3 per 100 inch2 (at a film thickness of about 1 mil). Film made from the polyethylene composition retains much of its dart impact performance on downgauging from a thickness of 1 mil to a thickness of 0.75 mil.

POLYPROPYLENE COMPOSITION AND MOLDED ARTICLE

A polypropylene composition made from or containing: 2. The polypropylene composition according to claim 1 , wherein the ethylene-derived unit in component (1) is present at a concentration of 1.8 to 4% by weight claim 1 , based upon the total weight of the propylene/ethylene copolymer.3. The polypropylene composition according to claim 1 , wherein the viscosity ratio is in the range of 0.45 to 0.75.4. The polypropylene composition according to claim 1 , wherein components (1) and (2) are copolymers obtained by polymerizing propylene and ethylene using a catalyst comprising:(a) a solid catalyst comprising magnesium, titanium, a halogen, and an electron donor compound selected from succinate-based compounds, and(b) an organoaluminum compound and(c) optionally an external electron donor compound.5. An injection-molded article comprising the polypropylene composition according to . In general, the present disclosure relates to the field of chemistry. More specifically, the present disclosure relates to polymer chemistry. In particular, the present disclosure relates to polypropylene compositions and molded articles thereof.It is believed that polypropylene is useful in food containers because of polypropylene's physical and hygienic properties. In some instances, polypropylene containers have poor in impact resistance at low temperatures. In some instances, polypropylene containers should have sufficient transparency to reveal the contents of the containers as well as stiffness for shape stability. As such, polypropylene should have a good balance between transparency, impact resistance at low temperatures, and stiffness.[1] In general embodiments, the present disclosure provides a polypropylene composition made from or containing:(i) component (1) made from or containing a propylene/ethylene copolymer containing more than 1.5% by weight and not more than 4% by weight of an ethylene-derived unit, based upon the total weight of the propylene/ethylene copolymer;(ii) ...

METHOD AND SYSTEMS FOR TRANSPORTING BITUMEN IN SOLIDIFIED FORM

Historically, bitumen from oil sands has been carried over land using trucks, pipelines, or by rail, and over water using tankers. Each mode of transportation faces economic or technical challenges of its own. Here there is provided a method for transporting bitumen, comprising: receiving in a dry bulk shipping container a load of discrete pellets with bitumen entrapped into the pellets, wherein the pellets have non-stick outer surfaces configured to prevent the bitumen from sticking to walls of the container when the pellets are carried in the container; and transporting the dry bulk shipping container containing the pellets over a distance. Alternatively or additionally, the pellets may have non-stick outer surfaces configured to prevent the load from caking when the pellets are carried in the container such that the load of bitumen pellets is substantially free-flowing when the transporting is completed. 119.-. (canceled)20. A method for dry bulk shipping bituminous material , comprising: 'wherein the pellets have non-stick outer surfaces configured to prevent the bituminous material from sticking to walls of the container when the pellets are carried in the container, whereby the load remains pourable while it is being transported in the container; and', 'a) receiving in a dry bulk shipping container a pourable load of discrete pellets including bituminous material,'}b) transporting the dry bulk shipping container containing the pellets over a distance.21. The method of claim 20 , wherein the bituminous material is derived from bitumen which is suitable as a feedstock for a refinery to separate the feedstock into constituents that can be used as fuels and lubricants.22. The method of claim 21 , wherein the bituminous material is suitable for use as an oil refinery feedstock to separate the feedstock into constituents that can be used as fuels and lubricants.23. The method of claim 20 , wherein the dry bulk shipping container is a railcar.24. The method of claim ...

POLYOLEFIN MICROPOROUS MEMBRANE

A polyolefin microporous membrane has a haze value measured in accordance with JIS K 7136 being 90% or less and puncture strength of 1.96 N or more. A multilayer polyolefin microporous membrane includes at least one layer of the polyolefin microporous membrane. A stacked polyolefin microporous membrane includes the polyolefin microporous membrane and one or more coating layers on at least one surface of the polyolefin microporous membrane. A battery includes a separator containing the polyolefin microporous membrane. 18- (canceled)9. A polyolefin microporous membrane , having a haze value measured in accordance with JIS K 7136 being 90% or less and puncture strength of 1.96 N or more.10. The polyolefin microporous membrane according to claim 9 , having air permeability of 50 sec/100 cmor more and 300 sec/100 cmor less.11. The polyolefin microporous membrane according to claim 9 , comprising 50 weight % or more of a high-density polyethylene.12. The polyolefin microporous membrane according to claim 9 , having a weight average molecular weight of 800 claim 9 ,000 or more.13. The polyolefin microporous membrane according to claim 9 , having a thickness of 1 μm or more and 20 μm or less.14. A multilayer polyolefin microporous membrane claim 9 , comprising at least one layer of the polyolefin microporous membrane according to .15. A laminated polyolefin microporous membrane claim 9 , comprising the polyolefin microporous membrane according to and one or more coating layers on at least one surface of the polyolefin microporous membrane.16. A battery claim 9 , comprising a separator containing the polyolefin microporous membrane according to . The present invention relates to a polyolefin microporous membrane.Microporous membranes are used in various fields, for example, a filter such as a filtration membrane and a dialysis membrane, a separator for a battery, and a separator for an electrolytic condenser, and the like. Among these, a microporous membrane using polyolefin ...

Hdpe

A multimodal polyethylene copolymer comprising: (III) 35 to 55 wt % of a lower molecular weight ethylene homopolymer component having an MFR 2 of 200 to 400 g/10 min; (IV) 45 to 65 wt % of a higher molecular weight ethylene copolymer component of ethylene and at least one C3-12 alpha olefin comonomer; wherein said multimodal polyethylene copolymer has a density of 955 to 962 kg/m 3 , an MFR 2 of 2.0 to 10 g/10 min and an Mw/Mn of more than 9.0.

BIMODAL HIGH-DENSITY POLYETHYLENE RESINS AND COMPOSITIONS WITH IMPROVED PROPERTIES AND METHODS OF MAKING AND USING THE SAME

The present disclosure is related to bimodal high-density polyethylene polymer compositions with increased high melt strength and good processability comprising a base resin which has a density of about 945 kg/mto about 955 kg/m, and comprises an ethylene polymer (A) having a density of at least about 968 kg/m, in an amount ranging from 45% to 55% by weight and an ethylene polymer (B) having a density lower than the density of polymer (A) wherein said composition has a complex viscosity at a shear rate of 0.01 rad/s ranging from about 200 to about 450 kPa·s and a complex viscosity at a shear rate of 100 rad/s ranging from about 1900 to about 2500 Pa·s. The present disclosure also relates to methods of making, and using the present compositions, and to articles made from there composition, and preferably to pipes and fittings. 1. A bimodal high-density polyethylene polymer composition comprising a base resin which has a density of about 945 kg/mto about 955 kg/m , preferably 946 to 951 kg/m , most preferably 947 to 951 , and comprises an ethylene polymer (A) having a density of at least about 968 kg/m , preferably above 970 , most preferably above 971 in an amount ranging from about 45% to about 55% by weight , preferably between 47 and 53% by weight , preferably between 48 and 52% by weight , most preferably between 49.5 and 51.5% by weight and an ethylene polymer (B) having a density lower than the density of polymer (A) , wherein said composition has a complex viscosity at a shear rate of 0.01 rad/s ranging from about 200 to about 450 kPa·s , preferably between 220 and 450 kPa·s , most preferably between 220 and 420 kPa·s and a complex viscosity at a shear rate of 100 rad/s ranging from about 1900 to about 2600 Pa·s , preferably from 2000 to 2500 Pa·s , most preferably from 2100 to 2450 Pa·s.2. The polymer composition according to claim 1 , wherein the composition exhibits a viscosity at a constant shear stress of 747 Pa (η*) ranging from about 400 kPa·s to about ...

SOLID CARRIER COMPONENT INCLUDING A LIQUID POLYORGANOSILOXANE AND METHODS FOR PREPARATION AND USE OF THE SOLID CARRIER COMPONENT

A solid carrier component includes a liquid polydiorganosiloxane, an ethylene-based polymer, and a maleated ethylene-based polymer. The solid carrier component is useful in processes for preparing filled composite articles, such as wood plastic composite building materials. 1. A solid carrier component comprising:40 weight % to 80 weight % of (A) an ethylene-based polymer with a melt index>2 g/10 min measured according to ASTM D1238—13 at 190° C. and 2.16 Kg,10 weight % to <25 weight % of (B) a maleated ethylene-based polymer,10 weight % to <25 weight % of (C) a bis-hydroxyl terminated polydiorganosiloxane with a viscosity of 5,000 mPa·s to 25,000 mPa·s measured at 25° C. at 5 RPM on a Brookfield DY-III cone & plate viscometer with #CP-52 spindle; and0 to 10 weight % of (D) a filler,where each weight % is based on combined weights of all starting materials in the solid carrier component.2. The solid carrier component of claim 1 , where for starting material (A) the melt index is 2.3 g/10 min to 12 g/10 min claim 1 , the density is 0.917 g/cmto 0.952 g/cmmeasured according to ASTM D792—13 and starting material (A) is present at 50 weight % to 70 weight %.3. The solid carrier component of claim 1 , where starting material (A) is selected from the group consisting of an ethylene homopolymer and an ethylene/1-octene copolymer.4. The solid carrier component of claim 1 , where starting material (B) has a melt index of 0.1 g/10 min to 25 g/10 min and a maleic anhydride content of 0.25 weight % to 2.5 weight % claim 1 , and starting material (B) is present at 10 weight % to 20 weight %.6. The solid carrier component of claim 5 , where each R is a methyl group claim 5 , and starting material (C) is present at 10 weight % to 20 weight %.7. The solid carrier component of claim 1 , where starting material (D) is present in an amount >0 to 10 weight % claim 1 , and starting material (D) comprises talc.8. The solid carrier component of claim 1 , where the solid carrier component ...

SOLID CARRIER COMPONENT INCLUDING A LIQUID POLYDIORGANOSILOXANE AND METHODS FOR PREPARATION AND USE OF THE SOLID CARRIER COMPONENT

A solid carrier component includes a liquid polydiorganosiloxane and an ethylene-based polymer. The solid carrier component is useful in processes for preparing wood plastic composite articles, such as building materials. 1. A solid carrier component comprising:50 weight % to 90 weight % of (A) a high density polyethylene with a melt index >2 g/10 min measured according to ASTM D1238-13 at 190° C. and at 2.16 Kg loading;10 weight % to 25 weight % of (C) a bis-hydroxyl terminated polydiorganosiloxane with a viscosity of 5,000 mPa·s to 25,000 mPa·s measured at 25° C. at 5 RPM on a Brookfield DV-III cone & plate viscometer with #CP-52 spindle;0 to <25 weight % of (B) a maleated ethylene-based polymer; and0 to 10 weight % of (D) a filler,where each weight % is based on combined weights of all starting materials in the solid carrier component.2. The solid carrier component of claim 1 , where for starting material (A) the melt index is 6.8 g/10 min to 20 g/10 min claim 1 , and starting material (A) is present at 60 weight % to 90 weight %.4. The solid carrier component of claim 3 , where each R is a methyl group claim 3 , subscript x has a value sufficient to give the polydialkylsiloxane the viscosity of 12 claim 3 ,000 mPa·s to 15 claim 3 ,000 mPa·s claim 3 , and the polydialkylsiloxane is present at 10 weight % to 20 weight %.5. The solid carrier component of claim 1 , where starting material (B) is present claim 1 , and starting material (B) has a melt index of 0.1 g/10 min to 25 g/10 min determined at 190° C. and 2.16 Kg according to ASTM D1238-13 and a maleic anhydride content of 0.25 weight % to 2.5 weight % claim 1 , and starting material (B) is present at 0 weight % to 20 weight %.6. The solid carrier component of claim 1 , where the solid carrier component is free of starting material (B) claim 1 , the maleated ethylene-based polymer.7. The solid carrier component of claim 1 , where starting material (D) claim 1 , the filler claim 1 , is present in an amount >0 ...

UHMWPE FIBER, YARN AND ARTICLES THEREOF

The invention relates to a gel-spun fiber comprising an ultra-high molecular weight polyethylene (UHMWPE), wherein the UHMWPE has an intrinsic viscosity (IV) of at least 4 dL/g and comprises at least 0.3 short chain branches per thousand total carbon atoms (SCB/1000TC), characterized in that the fiber further comprises between 0.1 and 10 parts by weight of carbon black based on 100 parts by weight of the amount of the polyethylene forming the fiber. The invention further relates to a yarn comprising at least 5 such gel-spun fibers as well as to articles comprising said fibers or yarns. 1. A gel-spun fiber comprising an ultra-high molecular weight polyethylene (UHMWPE) , wherein the UHMWPE has an intrinsic viscosity (IV) of at least 4 dL/g and comprises at least 0.3 short chain branches per thousand total carbon atoms , characterized in that the fiber further comprises between 0.1 and 10 parts by weight of carbon black based on 100 parts by weight of the amount of the polyethylene forming the fiber.2. The gel-spun fiber of wherein the short chain branches (SCB) originate from a co-monomer in the UHMWPE wherein the co-monomer is selected from the group consisting of alpha-olefins with at least 3 carbon atoms claim 1 , cyclic olefins having 5 to 20 carbon atoms and linear claim 1 , branched or cyclic dienes having 4 to 20 carbon atoms.3. The gel-spun fiber of wherein the SCB are C-C-hydrocarbyl groups claim 1 , preferably the C-C-hydrocarbyl group is selected from the group consisting of methyl claim 1 , ethyl claim 1 , propyl claim 1 , butyl claim 1 , pentyl claim 1 , hexyl claim 1 , octyl and cyclohexyl claim 1 , isomers thereof and mixtures thereof.4. The gel-spun fiber of wherein the UHMWPE has an IV between 4 and 40 dL/g claim 1 , preferably between 6 and 30 dL/g and most preferably between 8 and 25 dL/g.5. The gel-spun fiber of wherein the carbon black is selected from the group consisting of acetylene black claim 1 , channel black claim 1 , furnace black claim 1 ...

Blow Molding Polymers with Improved Cycle Time, Processability, and Surface Quality

Ethylene-based polymers having a density of 0.952 to 0.965 g/cm, a high load melt index (HLMI) from 5 to 25 g/10 min, a weight-average molecular weight from 275,000 to 450,000 g/mol, a number-average molecular weight from 15,000 to 40,000 g/mol, a viscosity at HLMI from 1400 to 4000 Pa-sec, and a tangent delta at 0.1 secfrom 0.65 to 0.98 degrees. These polymers have the processability of chromium-based resins, but with improved stress crack resistance, and can be used in large-part blow molding applications. 1. An ethylene polymer having:{'sup': '3', 'a density in a range from about 0.952 to about 0.965 g/cm;'}a high load melt index (HLMI) in a range from about 5 to about 25 g/10 min;a weight-average molecular weight (Mw) in a range from about 275,000 to about 450,000 g/mol;a number-average molecular weight (Mn) in a range from about 15,000 to about 40,000 g/mol;a HLMI in a range from about 1400 to about 4000 Pa-sec; and{'sup': '−1', 'a tan δ at 0.1 secin a range from about 0.65 to about 0.98 degrees.'}2. The polymer of claim 1 , wherein the ethylene polymer has an environmental stress crack resistance (ESCR) of at least 500 hours.3. The polymer of claim 1 , wherein the ethylene polymer has a ratio of Mw/Mn in a range from about 8 to about 20.4. A blow molded article comprising the ethylene polymer of .5. The polymer of claim 1 , wherein the ethylene polymer has:a CY-a parameter in a range from about 0.18 to about 0.36; and{'sup': '−1', 'a viscosity at 100 secin a range from about 1600 to about 2800 Pa-sec.'}6. The polymer of claim 1 , wherein the ethylene polymer has:less than about 0.008 long chain branches per 1000 total carbon atoms; anda reverse comonomer distribution.7. The polymer of claim 1 , wherein the ethylene polymer contains claim 1 , independently claim 1 , less than 0.08 ppm by weight of chromium and titanium.8. The polymer of claim 1 , wherein:{'sup': '3', 'the density is in a range from about 0.952 to about 0.96 g/cm;'}the HLMI is in a range from ...

COMPOSITION COMPRISING POLYESTER AND POLYOLEFIN

The invention relates to an article comprising a stud for fitting into a complementary receptacle and/or comprising a receptacle for fitting into a complementary stud comprising a composition comprising A) a polyester, B) a polyolefin and C) a compatibilizer, wherein the amount of A) is at least 75 wt % of the total composition, the amount of B) is 5 to 22.5 wt % of the total composition and the weight ratio of the amount of B) with respect to the amount of C) is 2 to 20. The invention further relates to an article comprising the composition, particularly a toy block. 1. An article comprising a stud for fitting into a complementary receptacle and/or comprising a receptacle for fitting into a complementary stud comprising a composition comprising A) a polyester , B) a polyolefin and C) a compatibilizer , wherein the amount of A) is at least 75 wt % of the total composition , the amount of B) is 5 to 22.5 wt % of the total composition and the weight ratio of the amount of B) with respect to the amount of C) is 2 to 20.2. The article according to claim 2 , wherein A) is selected from the group consisting of polyethylene terephthalate (PET) and polybutylene terephthalate (PBT) and a combination thereof.31. The article according to claimed claim 2 , wherein A) is a recycled PET.4. The article according to claim 1 , wherein the amount of B) is 8 to 15 wt % with respect to the total composition.5. The article according to claim 1 , wherein B) is selected from the group consisting of a low density polyethylene (LDPE) claim 1 , a linear low density polyethylene (LLDPE) claim 1 , a high density polyethylene (HDPE) claim 1 , polypropylene (PP) and an elastomeric copolymer of ethylene and an α-olefin having 4 to 10 carbon atoms claim 1 , and combinations thereof.6. The article according to claim 5 , wherein B) is selected from the group consisting of an LDPE having a density of 0.916 to 0.940 g/cmaccording to ISO1183 claim 5 , an LLDPE having a density of 0.915 to 0.940 g/ ...

Metallic acrylate salts to increase polymer melt strength

A composition can include a polyolefin, a styrenic polymer, or a polylactic acid. The composition can include a metallic acrylate salt. A method of making a composition can include melt mixing a polyolefin, a styrenic polymer, or a polylactic acid with a metallic acrylate salt.

Catalyst system and process for the production of polyethylenes

The present invention relates to a catalyst system for the production of polyethylene comprising: I) the reaction product obtained by reacting a) a hydrocarbon solution comprising: i. a magnesium-containing compound selected from an organic oxygen-containing magnesium compound and/or a halogen-containing magnesium compound; and ii. an organic oxygen-containing titanium compound wherein the molar ratio of magnesium: titanium is lower than 3:1; and b) an organo aluminium halide having the formula AlR n X 3-n in which R is a hydrocarbon moiety containing 1-10 carbon atoms, X is a halogen and 0<n<3; II) an aluminium compound having the formula AlR′ 3 , in which R′ is a hydrocarbon moiety containing 1-10 carbon atoms; and III) one or more of an electron donor selected from the group of 1,2-dialkoxy hydrocarbon compounds wherein the molar ratio of supplied organo aluminium halide I)b) to supplied titanium in I) a) in the preparation of I) is between 5.0 and 7.0; and the molar ratio of the electron donor III) to the titanium present in the reaction product I) is between 0.05 and 0.40 The production of polyethylene using said catalyst system results in a reduction of formation of ethane and a reduction of the hexane-extractable content of the polyethylene.

LOW-SAG POLYETHYLENE PIPES AND METHODS THEREOF

The present disclosure relates to pipes comprising bimodal high molecular weight high density polyethylene which has been extruded in the presence of one or more organic peroxides that are present in an amount ranging from 30 ppm to 200 ppm. The pipe has an improved long-term hydrostatic strength. Also provided are methods for preparing pipes having these characteristics. 1. An extruded pipe comprising bimodal high molecular weight high density polyethylene{'sup': 3', '3, 'claim-text': wherein the pipe was extruded in the presence of about 30 ppm to about 200 ppm of one or more organic peroxides,', 'wherein the one or more organic peroxides has a half-life of 1 hour at a temperature in the range of about 125° C. to about 145° C., and, 'having a density ranging from about 0.9460 g/cmto about 0.9520 g/cm,'}{'sub': F', 'R', 'F', 'R, 'the extruded pipe has a long-term hydrostatic strength t/tratio of about 1.5 or greater when determined at 23° C. and 12 MPa and/or at 23° C. and 11.5 MPa, where tis the time-to-failure of the pipe and tis the time-to-failure of a comparative pipe which has not been extruded with organic peroxide.'}2. The extruded pipe of claim 1 , wherein the organic peroxide is present in an amount ranging from about 40 ppm to about 150 ppm.3. The extruded pipe of claim 1 , wherein the bimodal high density polyethylene has a porous polypropylene random copolymer.4. The extruded pipe of claim 1 , wherein the long-term hydrostatic strength t/tratio is about 2.0 or greater when determined at 23° C. and 12 MPa and/or at 23° C. and 11.5 MPa.5. The extruded pipe of claim 1 , which has one or more of the following properties:a sag value of about 20 or less;a PENT result of about 500 hours or more; and{'sup': '2', 'a Charpy impact energy of about 10 kJ/mor more.'}6. The extruded pipe of claim 5 , which has one or more of the following properties:{'sup': 3', '3, 'a density in the range of about 0.9470 g/cmto about 0.9510 g/cm;'}a sag value of about 15 or less;a ...

High-barrier polymer blend compositions

A polymer blend composition comprising 78-92% by weight of a homopolymer or copolymer of ethylene, 3-10% by weight of a polyamide homopolymer, 5-10% by weight of maleic anhydride grafted polyethylene (MAgPE) and 0-2% by weight of antistatic compound on the total weight of the polymer blend composition, in combination with suitable additives.

DIELECTRICALLY-ENHANCED POLYETHYLENE FORMULATION

A dielectrically-enhanced polyethylene formulation made from (A) a polyethylene-nucleation agent, a dielectrically-enhanced (B) a multimodal ultra-high density polyethylene (multimodal uHDPE) composition, and, optionally, (C) a low density polyethylene (LDPE) polymer. A method of making same, an insulated electrical device comprising same, and a method of using same. 1. A dielectrically-enhanced polyethylene formulation comprising a crystallized melt-blend of constituents (A) , (B) , and optionally (C): from 0.01 to 1.00 weight percent (wt %) of (A) a polyethylene-nucleation agent; from 29.00 to 99.99 weight percent of (B) a multimodal ultra-high density polyethylene (multimodal uHDPE) composition , comprising a long-chain branched polyethylene homopolymer component and a linear polyethylene homopolymer component , and characterized by a first density , d1 , from 0.958 to 0.970 gram per cubic centimeter (g/cm) , measured according to ASTM D792-13 , Method B; and from 0.00 to 71.00 wt % of (C) a low density polyethylene (LDPE) polymer; and wherein the dielectrically-enhanced polyethylene formulation has a degree of crystallinity of from 40.0% to <85.0% , measured according to Degree of Crystallinity Test Method; wherein the (A) polyethylene-nucleation agent is selected from the group consisting of (A1) to (A7): (A1) calcium (1R ,2S)-cis-cyclohexane-1 ,2-dicarboxylate (1:1); (A2) calcium stearate (1:2); (A3) zinc stearate (1:2); (A4) a combination of (A1) and (A2); (A5) a combination of (A1) and (A3); (A6) a combination of (A2) and (A3); and (A7) a combination of (A1) , (A2) , and (A3).2. The dielectrically-enhanced polyethylene formulation of wherein the dielectrically-enhanced polyethylene formulation does not contain the (C) LDPE polymer claim 1 , and the dielectrically-enhanced polyethylene formulation is characterized by any one of limitations (i) to (iii): (i) a second density claim 1 , d2 claim 1 , wherein d2 is ≤0.972 g/cm claim 1 , and d2 is from 0.0010 to 0. ...

RESIN COMPOSITION, MODIFIER, AND RESIN COMPOSITION INCLUDING THE MODIFIER

An object of this invention is to provide a resin composition usable as a modifier with which the brittleness of a plastic material including a plurality of resins, such as a laminate of different kinds of materials collected for recycling, can be overcome and the impact resistance and elongation at break can be enhanced. Provided is a resin composition (A) including the following components (1) and (2): (1) a composition (a1) including at least two kinds of ethylene-vinyl acetate copolymers having different vinyl acetate contents; and (2) a copolymer (a2) that is at least one copolymer selected from an ethylene-acrylic acid copolymer and an ethylene-methacrylic acid copolymer. 1. A resin composition (A) comprising the following components (1) and (2):(1) a composition (a1) including at least two kinds of ethylene-vinyl acetate copolymers having different vinyl acetate contents; and(2) a copolymer (a2) that is at least one copolymer selected from an ethylene-acrylic acid copolymer and an ethylene-methacrylic acid copolymer.2. The resin composition (A) as set forth in claim 1 , whereinthe resin composition (A) contains the composition (a1) in an amount of not less than 50 wt % and not more than 99 wt % and the copolymer (a2) in an amount of not less than 1 wt % and not more than 50 wt %, a total of the composition (a1) and the copolymer (a2) being 100 wt %.3. The resin composition (A) as set forth in claim 1 , whereinthe copolymer (a2) has an acrylic acid content or a methacrylic acid content of not less than 3 mol % and not more than 15 mol %.4. The resin composition (A) as set forth in claim 1 , whereinthe composition (a1) is a composition including three or more kinds of ethylene-vinyl acetate copolymers having different vinyl acetate contents.5. The resin composition (A) as set forth in claim 1 , whereinin a case where a difference in vinyl acetate content is taken between the copolymers in the composition (a1), a difference in vinyl acetate content in each pair ...

ETHYLENE-BASED POLYMER COMPOSITIONS FOR IMPROVED EXTRUSION COATINGS

The invention provides a composition comprising at least the following: 1. A composition comprising at least the following:a) a first composition comprising at least one first ethylene-based polymer, formed by high pressure, free-radical polymerization, and wherein the first composition comprises the following properties: a melt index (I2) from 1.0 to 15.0 g/10 min, and density from 0.910 to 0.940 g/cc;b) a second composition comprising at least one second ethylene-based polymer, and wherein the second composition comprises the following properties: a melt index (I2) from 1.0 to 1000 g/10 min, and a density greater than 0.940 g/cc;wherein the melt index (I2) ratio of the melt index (I2) of the second composition to the melt index (I2) of the first composition is from 0.50 to 2.70;wherein the composition comprises the following properties: melt index (I2) from 2.0 to 20.0 g/10 min, and a density from 0.910 to 0.935 g/cc; andwherein the first composition is present in an amount from 65 to 95 wt %, based on the weight of the composition.2. The composition of claim 1 , wherein the melt index (I2) ratio of “the composition” to “the second composition” is from 0.30 to 2.00.3. The composition of claim 1 , wherein the first ethylene-based polymer is prepared in a tubular reactor.4. The composition of claim 1 , wherein the first composition comprises ≥95 wt % of the first ethylene-based polymer claim 1 , based on the weight of the first composition.5. The composition of claim 1 , wherein the first ethylene-based polymer is a low density polyethylene (LDPE).6. The composition of claim 1 , wherein the second composition comprises ≥95 wt % of the second ethylene-based polymer claim 1 , based on the weight of the second composition.7. The composition of claim 1 , wherein the second composition has a density from 0.940 to 0.966 g/cc.8. The composition of claim 1 , wherein the second ethylene-based polymer is a high density polyethylene (HDPE).9. The composition of claim 1 , ...

Scratch resistant polymer composition

Scratch resistant polymer composition, in particular for the manufacturing of rigid, scratch resistant and dimensionally stable building bricks, comprising: a) a bio-based HDPE granulate, produced from ethanol or ethylene obtained from biomass; b) an amorphous polymer and/or (semi)crystalline polymer; c) optionally a mineral filler and optionally a colouring pigment; Furthermore, a method for manufacturing an injection moulding article from the scratch resistant polymer composition is disclosed.

Gel Extruded Articles Made From High Density Polyethylene With Narrow Molecular Weight Distribution

A polymer composition for producing gel extruded articles is described. The polymer composition contains polyethylene particles combined with a plasticizer. The polyethylene polymer has a narrow molecular weight distribution. Polymer articles made in accordance with the present disclosure have enhanced strength properties. In one embodiment, the polymer composition is used to form a porous membrane for use as a separator in electronic devices. 1. A polymer composition for producing gel extruded articles comprising:a plasticizer;polymer particles comprising a high density polyethylene polymer, the high density polyethylene polymer have a narrow molecular weight distribution such that the high density polyethylene polymer has a polydispersity index (PDI) of less than about 8.2. A polymer composition as defined in claim 1 , wherein the high density polyethylene polymer has an intercrossing point (ICP) of greater than about 150 kPa.3. A polymer composition as defined in claim 1 , wherein the high density polyethylene polymer has a polydispersity index (PDI) of less than about 7.5.4. A polymer composition as defined in claim 1 , wherein the high density polyethylene polymer has an intercrossing point (ICP) of greater than about 168 kPa and has a polydispersity index (PDI) of less than about 6.5.5. A polymer composition as defined in claim 1 , wherein the high density polyethylene particles have a median particle size by volume of from about 70 microns to about 210 microns.6. A polymer composition as defined in claim 1 , wherein the high density polyethylene particles are present in the composition in an amount up to about 50% by weight.7. A polymer composition as defined in claim 1 , wherein the plasticizer comprises mineral oil claim 1 , a paraffinic oil claim 1 , a hydrocarbon claim 1 , an alcohol claim 1 , an ether claim 1 , an ester claim 1 , or mixtures thereof.8. A polymer composition as defined in claim 1 , wherein the high density polyethylene has a molecular ...

POLYOLEFIN BLENDS INCLUDING COMPATIBILIZER

A composition comprising from 10 wt % to 90 wt % of an ethylene component including at least one ethylene based polymer having an ethylene content of at least 50.0 wt %, a melt index from 0.1 g/10 min to 100.0 g/10 min, and a density from 0.935 g/cmto 0.965 g/cm; from 10 wt % to 90 wt % of a propylene component including at least one propylene based polymer having a propylene content of at least 50.0 wt % and a melt flow rate from 0.5 g/10 min to 200.0 g/10 min; and from 1 wt % to 20 wt % of a composite component including a specified block composite, derived from at least ethylene and an alpha-olefin. 1. A composition , comprising:{'sup': 3', '3, '(A) from 10 wt % to 90 wt % of an ethylene component including at least one ethylene based polymer having an ethylene content of at least 50.0 wt %, based on the total weight of the ethylene based polymer, a melt index from 0.1 g/10 min to 100.0 g/10 min (ASTM D-1238 at 190° C., 2.16 kg), and a density from 0.935 g/cmto 0.965 g/cm;'}(B) from 10 wt % to 90 wt % of a propylene component including at least one propylene based polymer having a propylene content of at least 50.0 wt %, based on the total weight of the propylene based polymer, and a melt flow rate from 0.5 g/10 min to 200.0 g/10 min (ASTM D-1238 at 230° C., 2.16 kg);{'sub': '3-10', '(C) from 1 wt % to 20 wt % of a composite component including a specified block composite, derived from at least ethylene and an alpha-olefin that is one of a Calpha-olefin, whereinthe specified block composite includes an ethylene based polymer having an ethylene content from 69 mol % and to 90 mol %, an alpha-olefin based polymer that is derived from at least the alpha-olefin, and a block copolymer comprising an ethylene block and an alpha-olefin block, the ethylene block of the block copolymer having the same composition as the ethylene based polymer in the block composite, and the alpha-olefin block of the block copolymer having the same composition as the alpha-olefin based ...

Polypropylene - polyethylene blends with improved properties

Polypropylene-Polyethylene blends comprising A) 75 to 90 wt % of a blend of A-1) polypropylene and A-2) polyethylene and B) 10 to 25 wt % of a compatibilizer being a heterophasic polyolefin composition comprising B-1) a polypropylene with an MFR 2 between 1.0 and 300 g/10 min (according to ISO 1133 at 230° C. at a load of 2.16 kg) and B-2) a copolymer of ethylene and propylene or C 4 to C 10 alpha olefin with a Tg (measured with dynamic-mechanical thermal analysis, DMTA, according to ISO 6721-7) of below −25° C. and an intrinsic viscosity (measured in decalin according to DIN ISO 1628/1 at 135° C.) of at least 3.0 dl/g, whereby the blend has simultaneously increased Charpy Notched Impact Strength (according to ISO 179-1eA, measured at 23° C.), Flexural Modulus (according to ISO 178) as well as heat deflection resistance (determined with DMTA according to ISO 6721-7).

IMPROVED FOAMING BEHAVIOUR OF POLYMER COMPOSITIONS USING BLOWING AGENT AND NUCLEATION AGENT

The invention relates to a foamable polymer composition comprising a blowing agent and a foamed polymer composition obtained by foaming this foamable polymer composition. The invention further relates to a cable comprising at least one layer which comprises the foamable polymer composition or a foamed polymer composition.

IMPROVED FOAMING BEHAVIOUR OF POLYMER COMPOSITIONS USING PASSIVE NUCLEATION

The present invention concerns a foamable polymer composition and a foamed polymer composition obtained by foaming this foamable polymer composition. The invention is also concerned with a cable comprising at least one layer which comprises the foamable polymer composition or the foamed polymer composition. The invention further provides a process for producing a foamed polymer composition.

POLYPROPYLENE COMPOSITION AND PREPARATION METHOD THEREOF, AND FILM OR SHEET PREPARED FROM THE POLYPROPYLENE COMPOSITION AND USE THEREOF

A polypropylene composition, a preparation method thereof, and a film or a sheet prepared from the polypropylene composition and use thereof. The composition includes 45 parts to 75 parts of a polypropylene, 10 parts to 35 parts of an elastomer, 5 parts to 20 parts of a polyethylene, 0.1 parts to 0.5 parts of an antioxidant, and 0.1 parts to 0.5 parts of a lubricant. A half peak width of a crystallization peak of the polypropylene is 5° C. to 10° C., and a peak temperature of the crystallization peak of the polypropylene is 105° C. to 115° C. The polypropylene composition has a good tenacity, especially a −30° C. low-temperature impact performance. The film or the sheet prepared from the composition and applied to automotive interior parts, can enable the external accessories not only to be less likely to generate sharp fragments while being strongly impacted, to guarantee the safety of people, but also to have a matte characteristic. 1. A polypropylene composition , characterized in that , it comprises following components in parts by weight based on the whole composition:a polypropylene 45 to 75 parts;an elastomer 10 to 35 parts; and 'wherein a half peak width of a crystallization peak of the polypropylene is 5° C. to 10° C., and preferably 7° C. to 9° C.; preferably a peak temperature of the crystallization peak of the polypropylene is 105° C. to 115° C., and preferably 108° C. to 112° C.; and the half peak width of the crystallization peak and the peak temperature of the crystallization peak are tested at a cooling rate of 10° C./min according to a standard of ISO 11357.', 'a polyethylene 5 to 20 parts;'}2. The polypropylene composition according to claim 1 , wherein the polypropylene is a homopolymerized polypropylene claim 1 , with an isotactic index of 94% to 98% and a melt flow rate of 1 g/10 min to 5 g/10 min under a load of 2.16 kg at 230° C.3. The polypropylene composition according to claim 1 , wherein the elastomer is one or a mixture of an ethene- ...

POLYOLEFIN STRUCTURE

A polyolefin-based structure includes 60 to 97% by mass of a polyolefin (A), 1 to 35% by mass of an acid-modified polyolefin (B), and 2 to 35% by mass of a polyamide resin (C), in which the polyamide resin (C) is dispersed in a layered form in the polyolefin (A), and the polyamide resin (C) is a melt-kneaded product of 30 to 70% by mass of a polyamide (X) that contains a diamine unit containing 70 mol % or more of a m-xylylenediamine unit and a dicarboxylic acid unit containing an β,ω-linear aliphatic dicarboxylic acid unit and 30 to 70% by mass of an aliphatic polyamide (Y) (provided that a total of the polyamide (X) and the polyamide (Y) is taken as 100% by mass), and a difference between a melting point Tmof the polyamide (X) as observed by differential scanning calorimetry and a melting point Tmderived from the polyamide (X) in the polyamide resin (C), is 0.1 to 2.5° C. 1. A polyolefin-based structure comprising 60 to 97% by mass of a polyolefin (A) , 1 to 35% by mass of an acid-modified polyolefin (B) , and 2 to 35% by mass of a polyamide resin (C) , wherein the polyamide resin (C) is dispersed in a layered form in the polyolefin (A) , and the polyamide resin (C) is a melt-kneaded product of 30 to 70% by mass of a polyamide (X) that contains a diamine unit containing 70 mol % or more of a m-xylylenediamine unit and a dicarboxylic acid unit containing an α ,ω-linear aliphatic dicarboxylic acid unit and 30 to 70% by mass of an aliphatic polyamide (Y) , provided that a total of the polyamide (X) and the polyamide (Y) is taken as 100% by mass , and a difference between a melting point Tmof the polyamide (X) as observed by differential scanning calorimetry and a melting point Tmderived from the polyamide (X) in the polyamide resin (C) , is from 0.1 to 2.5° C.2. The polyolefin-based structure according to claim 1 , further comprising a light-shielding material (D) in an amount of more than 0% by mass and 10% by mass or less.3. The polyolefin-based structure according ...

Polymer compositions comprising cross-linked polymers comprising boronic ester functions enabling exchange reactions, process for preparing them and their use

The object of the invention is a polymer compositions comprising cross-linked polymer comprising boronic ester functions enabling exchange reactions, as well as free monofunctional boronic esters. The compositions are obtained from the modification of a polymer by a functionalised boronic ester additive. This polymer can be pre-functionalised boronic ester or functionalised on addition of the said additive. In particular, the invention relates to a process enabling the behaviour of a polymer to be modified by addition of a functional additive, enabling a cross-linked network containing exchangeable boronic ester links to be formed.

POLYMER COMPOSITIONS COMPRISING CROSS-LINKED POLYMERS COMPRISING BORONIC ESTER FUNCTIONS ENABLING EXCHANGE REACTIONS, PROCESS FOR PREPARING THEM AND THEIR USE

The object of the invention is a polymer compositions comprising cross-linked polymer comprising boronic ester functions enabling exchange reactions, as well as free monofunctional boronic esters. 115-. (canceled)19. A composition according to claim 18 , wherein mequals 2 claim 18 , GFPis polymerisable by polyaddition or by polycondensation.20. A composition according to claim 18 , wherein mequals 1 claim 18 , GFPis polymerisable by radical polymerisation claim 18 , by polymerisation by coordination claim 18 , or by ring-opening polymerisation.22. A composition according to claim 17 , wherein the cross-linking agent is a polymer that carries:pending boronic ester functional groups of formula (EB1) or (EB2), not containing polymerisable groups, linked to the polymer by at least one carbon atom of the dioxaborolane or dioxaborinane ring; orpending boronic ester functional groups of formula (EB1) or (EB2), not containing polymerisable groups, linked to the polymer by the boron atom of the dioxaborolane or dioxaborinane ring.23. A composition according to claim 17 , wherein the cross-linking agent is a monomer (b) boronic ester functional compound claim 17 , precursor to a thermoplastic polymer or thermoset claim 17 , comprising at least one boronic ester function per monomer and carrying at least one polymerisable group.26. A composition according to claim 23 , wherein the monomers (a) claim 23 , (b) and (c) include a single polymerisable group and the polymerisation is a radical polymerisation claim 23 , a polymerisation by coordination or a ring-opening polymerisation.27. A composition according to claim 23 , wherein the monomers (a) claim 23 , (b) and (c) include only two polymerisable groups and the polymerisation is a polyaddition or a polycondensation.28. A process comprising the copolymerisation of the following compounds:(a) Precursor monomers to thermoplastic polymers comprising at least one pending boronic ester group, said pending boronic ester group not ...

Compositions and Methods for Making Them

Provided are compositions comprising: (i) a dispersed phase of rubber that is at least partially cured; (ii) a continuous thermoplastic phase including at least one thermoplastic polymer; (iii) a first polysiloxane having a number average molecular weight greater than 100 kg/mole; and (iv) a second polysiloxane having a number average molecular weight less than 100 kg/mole, and methods for making such compositions. Also provided are laminates including such compositions, weatherseals made therefrom, and methods for making them. 1. A composition comprising:(i) a dispersed phase of rubber that is at least partially cured;(ii) a continuous thermoplastic phase including at least one thermoplastic polymer;(iii) a first polysiloxane having a number average molecular weight greater than 100 kg/mole; and(iv) a second polysiloxane having a number average molecular weight less than 100 kg/mole.2. The composition of claim 1 , wherein the first polysiloxane has a molecular weight greater than 130 kg/mole.3. The composition of claim 1 , wherein the second polysiloxane is a liquid polysiloxane.4. The composition of claim 1 , wherein the first polysiloxane has an intrinsic viscosity claim 1 , as determined per ASTM D1601 and D 4020 claim 1 , of greater than 10 claim 1 ,000 dl/g.5. The composition of claim 1 , wherein the second polysiloxane has an intrinsic viscosity claim 1 , as determined per ASTM D1601 and D 4020 claim 1 , of less than 10 claim 1 ,000 dl/g.6. The composition of claim 1 , wherein the second polysiloxane has a viscosity of about 1 claim 1 ,000 cSt or less.7. The composition of claim 1 , wherein the composition comprises from about 8 to about 20 wt % of the first polysiloxane claim 1 , based on the weight of the composition.8. The composition of claim 1 , wherein the composition comprises from about 2 to about 12 wt % of the second polysiloxane claim 1 , based on the weight of the composition.9. The composition of claim 1 , wherein the composition comprises from ...

COMPOSITION FOR APPLICATION IN ROTOMOLDING PROCESSES AND USE OF THE COMPOSITION

The present invention relates to a composition for application in rotomolding processes comprising a blend of linear low density polyethylene (LLDPE) in concentrations from 20 to 40% by weight and melt flow index from 1 to 4 g/10 min; high density polyethylene (HDPE) in concentrations from 20 to 40% by weight and melt flow index from 5 to 9 g/10 min; low density polyethylene (LDPE) in concentrations from 0 to 20% by weight and melt flow index from 6 to 10 g/10 min; and linear low density polyethylene (LLDPE) in concentrations from 20 to 40% by weight and melt flow index from 3 to 7 g/10 min. A composition comprising feedstock of renewable origin, as well as its use is also disclosed. 1. A Composition for application in rotomolding processes , characterized in that it comprises mixing:linear low density polyethylene (LLDPE) in concentrations from 20 to 40% by weight and melt flow index from 1 to 4 g/10 min;high density polyethylene (HDPE) in concentrations from 20 to 40% by weight and melt flow index from 5 to 9 g/10 min;low density polyethylene (LDPE) in concentrations from 0 to 20% by weight and melt flow index from 6 to 10 g/10 min; andlinear low density polyethylene (LLDPE) in concentrations from 20 to 40% by weight and melt flow index from 3 to 7 g/10 min.2. The composition according to claim 1 , characterized in that LLDPE in concentrations from 20 to 40% by weight and melt flow index from 1 to 4 g/10 min; HDPE in concentrations from 20 to 40% by weight and melt flow index from 5 to 9 g/10 min claim 1 , and LDPE in concentrations from 0 to 20% by weight and melt flow index from 6 to 10 g/10 min derive from renewable natural source.3. The composition according to claim 2 , characterized in that the renewable natural source polyethylene is produced from natural feedstock selected from: starch; cellulose and hemicellulose contained in lignocellulosic materials claim 2 , impure glycerol claim 2 , residues containing lactose and/or lactates claim 2 , and sugars.4. ...

SEMI-CRYSTALLINE POLYOLEFIN-BASED ADDITIVE MASTERBATCH COMPOSITION

An additive masterbatch composition comprising a semi-crystalline polyolefin carrier resin and an additive package comprising a flame retardant. A moisture-curable polyolefin composition comprising the additive masterbatch composition and a (hydrolyzable silyl group)-functional polyolefin prepolymer. A method of making the compositions; a moisture-cured polyolefin composition prepared therefrom; a manufactured article comprising or made from the formulation; and a method of using the manufactured article. 1. An additive masterbatch composition comprising (A) a semi-crystalline polyolefin carrier resin and an additive package comprising (B) a flame retardant; wherein (A) is 10 to 90 weight percent (wt %) and the additive package is from 90 to 10 wt % of total weight (100.00 wt %) of the additive masterbatch composition; wherein the (B) flame retardant comprises (B1) a mineral; and wherein the additive masterbatch composition further comprises a flame retardant synergist compound.2. The additive masterbatch composition of wherein the (A) semi-crystalline polyolefin carrier resin consists essentially of any one of (i) to (viii): (i) a semi-crystalline medium density polyethylene; (ii) a semi-crystalline high density polyethylene; (iii) a semi-crystalline polypropylene; (iv) a semi-crystalline ethylene/propylene copolymer; (v) a semi-crystalline poly(ethylene-co-alpha-olefin) copolymer; (vi) a combination (e.g. claim 1 , mixture or blend) of any two or more of (i) claim 1 , (ii) and (v); (vii) the (A) semi-crystalline polyolefin carrier resin has a crystallinity of 50 to <100 wt %; or (viii) any one of limitations (i) to (vi) and the (A) semi-crystalline polyolefin carrier resin has a crystallinity of 50 to <100 wt %.3. The additive masterbatch composition of wherein the (A) semi-crystalline polyolefin carrier resin has any one of (i) to (x): (i) a density of at least 0.925 g/cmand is a polyethylene or a density of 0.89 to 0.90 g/cmand is a polypropylene; (ii) a ...

WOOD PLASTIC COMPOSITE

A capstock may be composed of a bimodal olefin resin and an additive. The bimodal olefin resin may be composed of a first polymer having a first polymer percentage by weight based on a total weight of the bimodal olefin resin and a second polymer having a second polymer percentage by weight based on the total weight of the bimodal olefin resin. The capstock may have a thickness in the range of about 0.0015 in. to about 0.0030 in. The capstock may also include one or more fillers or additives. A building material may be composed of the capstock with a core, in which the capstock and core are co-fabricated. The capstock and core may be include polymer resins including LLDPE, LDPE, MDPE, HDPE, UHMWPE, a polyamide, PET, PP, or PVC. 1. A capstock comprising: a first polymer having a first polymer percentage by weight based on a total weight of the bimodal olefin resin; and', 'a second polymer having a second polymer percentage by weight based on the total weight of the bimodal olefin resin; and, 'a bimodal olefin resin comprisingan additive,wherein the capstock has a thickness in the range of 0.0015 in. to 0.0030 in.2. The capstock of claim 1 , wherein the first polymer has a first density claim 1 , the second polymer has a second density claim 1 , and the first density is less than the second density.3. The capstock of claim 1 , wherein the first polymer comprises a first comonomer claim 1 , the second polymer comprises a second comonomer claim 1 , and the first comonomer differs from the second comonomer.4. The capstock of claim 1 , wherein the first polymer comprises a comonomer claim 1 , and the second polymer is a copolymer.5. The capstock of claim 1 , wherein the first polymer comprises a high density polyethylene claim 1 , and the second polymer is a polyethylene-hexene co-polymer.6. The capstock of claim 1 , further comprising:the bimodal olefin resin having a first resin percentage by weight based on a total weight of the capstock; andthe additive having an ...

POLAR GROUP-CONTAINING OLEFIN COPOLYMER, MULTINARY POLAR OLEFIN COPOLYMER, OLEFIN RESIN COMPOSITION, AND ADHESIVE MATERIAL, LAMINATE, AND OTHER APPLICATION PRODUCTS USING SAME

The present invention relates to a polar group-containing olefin copolymer (A′) which is produced through polymerization using a transition metal catalyst, which has a weight-average molecular weight falling within a specific range and which contains a polar group-containing monomer within a specific range; a multinary polar olefin copolymer (A″) indispensably containing a polar monomer component that has a norbornene skeleton and a carboxyl group or an acid anhydride group and having three or more types of monomer units; and a resin composition (C) containing a specific amount of a polar group-containing olefin copolymer (A) and a specific amount of an olefin resin (B). 1. A method of producing a polar group-comprising olefin copolymer , the method comprising:copolymerizing at least one nonpolar monomer selected from the group consisting of ethylene and α-olefins having from 3 to 20 carbon atoms, and at least one polar group-comprising monomer comprising a carboxyl group or a dicarboxylic acid anhydride group, in the presence of a transition metal catalyst comprising a chelating ligand and a metal atom selected from the group consisting of a platinum atom, a cobalt atom, a nickel atom, a palladium atom, and a rhodium atom, to obtain a polar group-comprising olefin copolymer,wherein the polar group-comprising olefin copolymer is a random copolymer and satisfies the following requirements 1) to 3):1) an amount of structural unit derived from the polar group-comprising monomer in the polar group-comprising olefin copolymer is from 0.001 to 10 mol %;2) a weight-average molecular weight (Mw) of the copolymer, as obtained through gel permeation chromatography (GPC), is from 45,000 to 1,000,000; and3) a melting point, as represented by a temperature at a position of maximum peak in the absorption curve measured with a differential scanning calorimeter is from 50° C. to 140° C.2. The method according to claim 1 , wherein an amount of structural unit derived from h polar ...

BIMODAL POLYPROPYLENE FOR CAST FILMS OR A METALLIZED FILM WHEREIN THE POLYPROPYLENE COMPRISES TWO FRACTIONS WHICH DIFFER IN THE COMONOMER CONTENT

The present application relates to a propylene ethylene random copolymer exhibiting two melting temperatures (T) which differ from each other. 1. A propylene ethylene random copolymer (R-PP) , comprising:(a) a melt flow rate MFR2 (230° C.) measured according to ISO 1133 from 5 to 15 g/10 min,(b) an ethylene content from 1 to 10 wt.-%, based on the weight of the propylene ethylene random copolymer (R-PP), and{'sub': 'm', '(c) exhibiting two melting temperatures (T) determined by differential scanning calorimetry (DSC) according to ISO 11357-3 which differ from each other.'}2. The propylene ethylene random copolymer (R-PP) according to claim 1 , wherein the two melting temperatures (Tm) differ from each other by at least 4° C.3. The propylene ethylene random copolymer (R-PP) according to claim 1 , wherein the higher melting temperature (Tm) ranges from 142 to 165° C. claim 1 , and the lower melting temperature (Tm) ranges from 125 to below 141° C.4. The propylene ethylene random copolymer (R-PP) according to claim 1 , wherein the xylene cold soluble (XCS) content of the propylene ethylene random copolymer (R-PP) is equal or below 12 wt.-%.5. The propylene ethylene random copolymer (R-PP) according to claim 1 , comprising a propylene ethylene random copolymer fraction (R-PP1) and a propylene ethylene random copolymer fraction (R-PP2) in a weight ratio [(R-PP1)/(R-PP2)] of 30/70 to 70/30 claim 1 , wherein(d) the ethylene content of the propylene ethylene random copolymer fraction (R-PP1) is equal to or differs from the ethylene content of the propylene ethylene random copolymer fraction (R-PP2).6. The propylene ethylene random copolymer (R-PP) according to claim 1 , wherein(d) the ethylene content of the propylene ethylene random copolymer fraction (R-PP1) differs from the ethylene content of the propylene ethylene random copolymer fraction (R-PP2) by 0-5 wt-%.7. The propylene ethylene random copolymer (R-PP) according to claim 1 , wherein(e) the propylene ethylene ...

FLAME-RETARDANT RESIN COMPOSITION, AND INSULATING WIRE, METAL CABLE, OPTICAL FIBER CABLE AND MOLDED ARTICLE USING THE SAME

A flame-retardant resin composition may include a base resin composed of polyethylene and an acid-modified polyolefin, a silicone compound, a fatty acid-containing compound, and a hindered amine-based compound that includes a hindered amine structure. The polyethylene may include a high-density polyethylene, a medium-density polyethylene and a low-density polyethylene, where the high-density polyethylene has a density of 945 kg/mor more, the medium-density polyethylene has a density of 914 kg/mor more and less than 945 kg/m, and the low-density polyethylene has a density of 864 kg/mor more and less than 914 kg/m. The base resin may contain the high-density polyethylene in an amount of 40 mass % or more and 60 mass % or less, the medium-density polyethylene in an amount of 1 mass % or more and 35 mass % or less, and the low-density polyethylene in an amount of 10 mass % or more and 30 mass % or less. 1. A flame-retardant resin composition , comprising:a base resin composed of polyethylene and an acid-modified polyolefin;a silicone compound;a fatty acid-containing compound; anda hindered amine-based compound including a hindered amine structure;wherein the polyethylene includes a high-density polyethylene, a medium-density polyethylene and a low-density polyethylene,{'sup': '3', 'wherein the high-density polyethylene has a density of 945 kg/mor more,'}{'sup': 3', '3, 'the medium-density polyethylene has a density of 914 kg/mor more and less than 945 kg/m, and'}{'sup': 3', '3, 'the low-density polyethylene has a density of 864 kg/mor more and less than 914 kg/m,'}wherein the base resin contains the high-density polyethylene in an amount of 40 mass % or more and 60 mass % or less,the base resin contains the medium-density polyethylene in an amount of 1 mass % or more and 35 mass % or less,the base resin contains the low-density polyethylene in an amount of 10 mass % or more and 30 mass % or less, andthe base resin contains the acid-modified polyethylene in an amount of ...

A CROSSLINKABLE POLYOLEFIN COMPOSITION

The present invention relates to crosslinkable polyolefin compositions, to a process for their preparation, to crosslinked compositions such as foams, sealants or adhesives and shaped articles, and their use in food packaging, textile packaging and technical and protection films. The crosslinkable polyolefin composition comprises one or more polyolefin polymers A, a hydrolysable silane functional polyolefin polymer B prepared from monomers comprising olefin monomers a) and silane functional compound(s) b), wherein the silane functional polyolefin polymer B is grafted onto the one or more polyolefin polymers A. The crosslinkable polyolefin compositions is crosslinkable by moisture. 1: A crosslinkable polyolefin composition comprising:A. one or more polyolefin polymers A,B. a hydrolysable silane functional polyolefin polymer B prepared from monomers comprising olefin monomers a) and silane functional compound(s) b),and wherein the hydrolysable silane functional polyolefin polymer B is grafted onto the one or more polyolefin polymers A.2: The crosslinkable polyolefin composition according to wherein the silane functional compound(s) b) are selected from the group of silane halides or silane functional compound(s) b) represented by the formula:{'br': None, 'sup': 1', '2, 'sub': q', '3-q, 'RSiRY'}{'sup': 1', '2', '2, 'wherein Ris an ethylenically unsaturated hydrocarbyl, hydrocarbyloxy or (meth)acryloxy hydrocarbyl group, each Ris independently an aliphatic saturated hydrocarbyl group, Y which may be the same or different is a hydrolysable organic group and q is 0, 1 or 2; and R, if present, is a methyl, ethyl, propyl, decyl or phenyl group.'}3: The crosslinkable polyolefin composition according to claim 1 , wherein silane functional compound(s) b) are chosen from the group comprising gamma-(meth)acryl-oxypropyl trimethoxysilane claim 1 , gamma-(meth)-acryl-oxypropyl triethoxysilane claim 1 , and vinyl triacetoxysilane or combinations of two or more thereof.4: The ...

BARRIER FILM FOR FOOD PACKAGING

Barrier films are prepared from a blend of two high density polyethylene blend components and a high performance organic nucleating agent. The two high density polyethylene blend components have substantially different melt indices. Large reductions in the moisture vapor transmission rate of the film are observed in the presence of the nucleating agent when the melt indices of the two blend components have a ratio of greater than 10/1. The resulting barrier films are suitable for the preparation of packaging for dry foods such as crackers and breakfast cereals. 115-. (canceled)16. A barrier film comprising at least one extruded polyethylene layer , wherein said at least one extruded polyethylene layer comprises:I) an organic nucleating agent and [{'sub': '2', 'a) from 5 to 60 weight % of at least one high density polyethylene blend component a) having a density of from 0.950 to 0.975 g/cc and a high melt index, I; and'}, {'sub': '2', 'b) from 95 to 40 weight % of at least one high density polyethylene blend component b) having a density of from 0.955 to 0.965 g/cc and a low melt index, I′;'}], 'II) a high density polyethylene blend composition comprisingwherein:i) said organic nucleating agent is a calcium salt of 1,2-cyclohexanedicarboxylic acid and added in an amount of from 100 to 3000 parts per million based on the weight of said high density polyethylene blend composition;{'sub': 2', '2', '2, 'ii) an Iratio, obtained by dividing said Ivalue of said blend component a) by said I′ value of said blend component b) is greater than 10/1; and'}iii) density is measured according to ASTM D 1505 and melt index is measured according to ASTM D 1238 when conducted at 190° C. using a 2.16 kg weight.17. The barrier film of wherein said high density polyethylene blend composition comprises from 20 to 40 weight % of said component a) and from 80 to 60 weight % of said component b).18. The barrier film of wherein said blend component a) is further characterized by having a ...

ENHANCED ADHESIVE COMPOSITION FOR RE-ENFORCING JOINTS IN GYPSUM PANEL CONSTRUCTION

This invention provides flexible adhesive compositions which can be used instead of joint reinforcement tape for securing a joint seam between abutting panels. Methods using the compositions are provided as well. 1. A flexible adhesive composition comprising:fibers with the average length from 0.1 to 3 millimeters and a diameter from 5 microns to 25 microns, and selected from the group consisting of natural fibers, synthetic fibers and a combination thereof, wherein the fibers are in the amount from 0.1% to 25% by weight, based on the total composition weight;a binder, wherein the binder is a polymeric resin in the amount from 1% to 50% resin solids, based on the total composition weight;water in the amount from about 25% to about 75% by weight, based on the total composition weight;at least one thickener in the amount from about 0.1% to about 2% by weight, based on the total composition weight; andwherein the composition has a viscosity in the range from about 200 to about 600 Brabender units and a pH in the range from about 7.0 to about 12.2. The composition of claim 1 , wherein the composition further comprises a filler with a particle size in the range from 0.2 microns to 250 microns and selected from the group consisting of calcium carbonate claim 1 , limestone claim 1 , gypsum claim 1 , nepheline syenite claim 1 , titanium dioxide claim 1 , lithophone claim 1 , wollastonite claim 1 , bismuth oxychloride claim 1 , talc claim 1 , clay claim 1 , and any mixture thereof claim 1 , and wherein the filler is in the amount from 0.5% to 75% by weight claim 1 , based on the total composition weight.3. The composition of claim 1 , wherein the fibers are selected from the group consisting of polypropylene fibers claim 1 , polyethylene fibers claim 1 , rayon fibers claim 1 , and any combination thereof.4. The composition of claim 1 , wherein the fibers are at least one of the following: high-density polyethylene fibers and rayon denier fibers.5. The composition of claim 1 ...

HDPE Modified Polyethylene Blown Film Compositions Having Excellent Bubble Stability

The present invention relates to polyethylene compositions comprising one or more ethylene polymers and one or more HDPE modifiers, in particular, this invention further relates to polyethylene blends comprising one or more ethylene polymers and one or more HDPE modifiers, wherein the modifier has: 1) a density of greater than 0.94 g/cc; 2) a M w /M n greater than 5; 3) a melt index (ASTM 1238, 190° C., 2.16 kg) of less than 0.7 dg/min; and 4) a g′ vis of 0.96 or less.

MASTERBATCH WITH SEMI-CRYSTALLINE POLYOLEFIN CARRIER RESIN

A coagent masterbatch comprising a semi-crystalline polyolefin carrier resin and an alkenyl-functional coagent. An electron-beam curable formulation comprising the coagent masterbatch and a polyolefin compound. A method of making the master-batch and formulation; an electron-beam-cured polyolefin product prepared therefrom; a manufactured article comprising or made from the masterbatch, formulation, or product; and a method of using the manufactured article. 1. A coagent masterbatch comprising (A) a semi-crystalline polyolefin carrier resin and (B) an alkylene-functional coagent disposed in the (A) semi-crystalline polyolefin carrier resin; wherein (A) is 80.0 to 99.9 weight percent (wt %) and (B) is from 20.0 to 0.1 wt % of the combined weight of constituents (A) and (B); wherein the (A) semi-crystalline polyolefin carrier resin has a crystallinity of from 55.0 to less than 100 weight percent (wt %) as measured by Crystallinity Test Method using differential scanning calorimetry (DSC); wherein when the (A) semi-crystalline polyolefin carrier resin is a semi-crystalline polyethylene , the semi-crystalline polyethylene has a density of greater than 0.935 gram per cubic centimeter (g/cm).2. The coagent masterbatch of characterized by any one of limitations (i) to (x): (i) the coagent masterbatch is free of (C) an (electron beam)-curable polyolefin compound (host polymer) other than constituent (A); (ii) the coagent masterbatch further comprises at least one additive independently selected from optional additives (D) to (L): (D) a flame retardant claim 1 , (E) an antioxidant claim 1 , (F) a processing aid claim 1 , (G) a colorant claim 1 , (H) a metal deactivator claim 1 , (I) an (unsaturated carbon-carbon bond)-free hydrolyzable silane claim 1 , (J) a corrosion inhibitor claim 1 , (K) a hindered amine light stabilizer claim 1 , and (L) an ethylene-based copolymer that is different than constituents (A) and (C) and is an ethylene/(C-C)alpha-olefin copolymer claim 1 , ...

PIPE WITH HIGH ABRASION RESISTANCE

A pipe- or tube-shaped article having an innermost layer, wherein the innermost layer has a thickness of 0.001 to 100 mm and comprises a polyolefin composition comprising a) a propylene-ethylene copolymer, wherein the amount of repeat units derived from ethylene is 1 to 20 wt % based on the weight of the propylene-ethylene copolymer and wherein the propylene-ethylene copolymer has a density of at most 0.9 g/cm3 as determined by ASTM D1505 and b) an olefin polymer selected from high-density polyethylene HDPE), linear low density polyethylene (LLDPE), polypropylene (PP) and combinations thereof. 1. A pipe- or tube-shaped article having an innermost layer , wherein the innermost layer has a thickness of 0.001 to 100 mm and comprises a polyolefin composition comprising{'sup': '3', 'a) a propylene-ethylene copolymer, wherein the amount of repeat units derived from ethylene is 1 to 20 wt % based on the weight of the propylene-ethylene copolymer and wherein the propylene-ethylene copolymer has a density of at most 0.9 g/cmas determined by ASTM D1505 and'}b) an olefin polymer selected from high-density polyethylene (HDPE), linear low density polyethylene (LLDPE), polypropylene (PP) and combinations thereof.2. The article according to claim 1 , wherein the amount of the propylene-ethylene copolymer a) is in the range from ≥40 to ≤90 wt % based on the total amount of the propylene-ethylene copolymer a) and the olefin polymer b).3. The article according to claim 1 , wherein the tensile stress of the polyolefin composition is at least 10 MPa and/or the elongation at break is at least 430% as measured according to ASTM D638.4. The article according to claim 1 , wherein the abrasion weight loss of the polyolefin composition is at least less than 2%.5. The article according to claim 1 , wherein the Vicat temperature of the polyolefin composition is at least 40° C. as measured according to ASTM D1525 (10N/50 C/hrs).6. The article according to claim 1 , wherein the amount of repeat ...

Stable asphalt emulsions, methods of forming the same, and composite structures formed from the same

Asphalt emulsions, methods of forming asphalt emulsions, and composite pavement structures formed from the asphalt emulsions are provided herein. In an embodiment, an asphalt emulsion includes a base asphalt component, water, and an oxidized high density polyethylene. The base asphalt component is present in an amount of from about 15 to about 70 weight %, the water is present in an amount of at least about 25 weight %, and the oxidized high density polyethylene is present in an amount of from about 1 to about 20 weight %, where all amounts are based on the total weight of the asphalt emulsion. The oxidized high density polyethylene has an acid value of from about 5 to about 50 mgKOH/g. The asphalt emulsion is free of aggregate and other mineral materials.

LOW EFO POLYPROPYLENE COMPOSITION

Polymer composition comprising at least one polypropylene homopolymer and/or random copolymer, up to 15 wt % of at least one polyethylene, optionally at least one elastomer in an amount of 8 to 40 wt % and optionally fillers and/or additives in an amount of up to 45 wt % based on the total weight of the fmal polymer composition with the at least one polyethylene having a density of higher than 940 kg/m3, a content of hexane hot extractables of below 0.80 wt % preferably below 0.60 wt %, most preferably below 0.40 wt % and a copolymer/homopolymer (COHO) ratio measured by Temperature Rising Elution Fraction (TREF) up to 6%. 1. A polymer composition comprising:a) one or more of at least one polypropylene homopolymer or random copolymer,b) from 0.1 up to 15 wt % of at least one polyethylene,c) optionally at least one elastomer in an amount of 8 to 40 wt % andd) optionally one or more of fillers or additives in an amount of up to 45 wt % based on the total weight of the final polymer composition{'sup': '3', 'with the at least one polyethylene having a density of higher than 940 kg/m, a content of hexane hot extractables of below 0.80 wt %, and a copolymer/homopolymer (COHO) ratio measured by Temperature Rising Elution Fraction (TREF) of up to 6%.'}2. The polymer composition according to comprising:a) one or more of at least one polypropylene homopolymer or random copolymer,{'sup': '3', 'b) 5 to 15 wt % of at least one polyethylene having a density of higher than 940 kg/m, a content of hexane hot extractables of below 0.80 wt % and a copolymer/homopolymer ratio (COHO ratio) measured by Temperature Rising Elution Fraction (TREF) up to 6%,'}c) an elastomer in an amount of 10 to 30 wt %,d) up to 30 wt % fillers ande) up to 4 wt % additives, based on the total weight of the final polymer composition.3. The polymer composition according to claim 1 , comprising:a) one or more of at least one polypropylene homopolymer or random copolymer,{'sup': '3', 'b) 5 to 15 wt % of at least ...

LOW IMPACT CO2 EMISSION POLYMER COMPOSITIONS AND METHODS OF PREPARING SAME

Blended polymer compositions and methods of making same may include a first component including one or more biobased polymer compositions; a second component including one or more recycled polymer compositions; and an optional third component including one or more virgin petrochemical resins, wherein the wt % of each component is selected such that the polymer composition exhibits an Emission Factor Blend of less than or equal to 1.0 kg CO/kg of the blended polymer composition. 1. A blended polymer composition comprising:a first component comprising one or more biobased polymer compositions;a second component comprising one or more recycled polymer compositions; and{'sub': Blend', '2, 'claim-text': {'br': None, 'i': P', '+P', '+P, 'sub': Biobased', 'P1', {'sub2': 'Biobased'}, 'Recycled', 'P2', {'sub2': 'Recycled'}, 'Petro', 'P3', {'sub2': 'petro'}, 'Blend, '1·Emission factor2·Emission factor3·Emission factor=Emission factor;'}, 'an optional third component comprising one or more virgin petrochemical polymer compositions, wherein the wt % of each component is selected such that the blended polymer composition exhibits an Emission Factorof less than or equal to 1.0 kg CO/kg of the blended polymer composition, as determined according to the formula{'sub': Biobased', 'Recycled', 'Petro', 'P1', {'sub2': 'Biobased'}, '2', 'P2', {'sub2': 'Recycled'}, '2', 'p3', {'sub2': 'petro'}, '2', 'Blend', '2, 'wherein P1is the weight percentage of the one or more biobased polymer compositions, P2is the weight percent of the one or more recycled polymer compositions, P3is the weight percent of the one or more virgin petrochemical polymer compositions, Emission factoris the calculated emission for the one or more biobased polymer compositions in kg CO/kg polymer, Emission factoris the calculated emission for the one or more recycled polymer compositions in kg CO/kg polymer, Emission factoris the calculated emission for the one or more virgin petrochemical polymer compositions in kg CO/ ...

METHOD OF 3D PRINTING, AND RESULTING ARTICLE HAVING POROUS STRUCTURE

A composition for three-dimension (3D) printing, a method for 3D printing, and a resulting article having porous structure are provided. Such a composition includes from 50% to 100%o by weight of a base polymer comprising polyolefin (such as ultra-high molecular weight polyethylene), from 0% to 50% by weight of a glue polymer (such as HDPE or PP), and optionally additive. A composition can be applied in a layer, and the base polymer and the glue polymer each has a predetermined size or size distribution. The composition is sintered in a selected area to form a layer of a solid article, which has a predetermined pore size or pore size distribution. The predetermined particle size or size distribution for each of the base polymer and the glue polymer is determined through computer simulation based on the predetermined pore size or pore size distribution in the layer of the solid article. 1. A composition , comprising:from 50% to 100% by weight of a base polymer, the base polymer comprising a polyolefin and having a particle size in a range of from about 5 microns to about 600 microns; andfrom 0% to 50% by weight of a glue polymer, the glue polymer having a particle size in a range from about 1 micron to about 250 microns.2. The composition of claim 1 , wherein the base polymer comprises ultra-high molecular weight polyethylene (UHMWPE).3. The composition of claim 1 , wherein the glue polymer comprises high density polyethylene (HDPE) or polypropylene (PP).4. The composition of claim 1 , wherein the base polymer and the glue polymer have a spherical claim 1 , near-spherical claim 1 , or potato shape.5. The composition of claim 1 , wherein the base polymer has an average particle size equal to or lower than 300 microns claim 1 , and the glue polymer may have an average particle size equal to or lower than 250 microns.6. The composition of claim 1 , wherein the base polymer has an average particle size is larger than that of the glue polymer.7. The composition of claim 1 ...

Polyethylene compositions and closures for bottles

A dual reactor solution process gives high density polyethylene compositions containing a first ethylene copolymer and a second ethylene copolymer and which have good processability, toughness, and environmental stress crack resistance combined with good organoleptic properties. The polyethylene compositions are suitable for compression molding or injection molding applications and are particularly useful in the manufacture of caps and closures for bottles.

Polyethylene Having High Pressure Resistance and Crosslinked Polyethylene Pipe Comprising the Same

The present disclosure relates to a polyethylene having high pressure resistance and a crosslinked polyethylene pipe including the same. The polyethylene according to the present disclosure has high melt index and density and exhibits a sufficient degree of crosslinking, thereby exhibiting excellent strength and pressure resistance characteristics.

Phosphonite compounds as process stabilizers

The present invention relates to a composition comprising one or more (co)polymers and one or more phosphonite compounds that contain cardanol moieties. Moreover, the present invention also refers to the use of the phosphonite compounds as process stabilizers, in particular refers to the use of such compounds for stabilizing and/or reducing the Yellowness Index of a (co)polymer composition exposed to heat and/or mechanical stress.

RESIN COMPOSITION

A resin composition that contains: (A) a bio-polyethylene resin; (B) an ethylene-vinyl alcohol copolymer having an ethylene content of 20 to 60 mol %; and (C) at least one component selected from the group consisting of an ethylene-vinyl acetate copolymer, an acid-modified ethylene-α-olefin copolymer, an ethylene-unsaturated monocarboxylic acid copolymer, an ionomer of the ethylene-unsaturated monocarboxylic acid copolymer, an ethylene-vinyl alcohol copolymer having an ethylene content of 70 to 90 mol %, and a hydrotalcite compound. The resin composition employs a bio-polyethylene resin and yet can suppress gumming and provide a formed product having an excellent appearance.

POLYOLEFIN MICROPOROUS MEMBRANE, METHOD OF PRODUCING POLYOLEFIN MICROPOROUS MEMBRANE, BATTERY SEPARATOR, AND BATTERY

A polyolefin microporous membrane is capable of achieving a low shutdown temperature while keeping air permeation resistance sufficiently low, and a method produces the polyolefin microporous membrane. The polyolefin microporous membrane has, when a temperature is raised to 230° C. at a temperature rise rate of 10° C./min in differential scanning calorimetry (DSC), a ratio of a melting heat quantity (ΔH) of equal to or larger than 95% at temperatures lower than an equilibrium melting point of polyethylene, relative to 100% of the total melting heat quantity (ΔH). 115-. (canceled)16. A polyolefin microporous membrane comprising a polyethylene resin composition as a main component , the membrane having , when a temperature is raised to 230° C. at a temperature rise rate of 10° C./min in differential scanning calorimetry (DSC) , a ratio of melting heat quantity (ΔH) of equal to or larger than 95% at temperatures lower than an equilibrium melting point of polyethylene , relative to 100% of a total melting heat quantity (ΔH).17. The polyolefin microporous membrane according to claim 16 , wherein when the temperature is raised to 230° C. at a temperature rise rate of 10° C./min in DSC claim 16 , a melting heat quantity at temperatures equal to or higher than 135° C. and lower than 140° C. (ΔH) is larger than a melting heat quantity at temperatures equal to or higher than 140° C. and lower than 145° C. (ΔH) by 25% or more relative to 100% of the total melting heat quantity (ΔH).18. The polyolefin microporous membrane according to claim 16 , wherein the membrane has claim 16 , when the temperature is raised to 230° C. at a temperature rise rate of 10° C./min in DSC claim 16 , a melting heat quantity of equal to or larger than 23% at temperatures equal to or higher than 130° C. and lower than 135° C. (ΔH) claim 16 , relative to 100% of the total melting heat quantity (ΔH).19. The polyolefin microporous membrane according to claim 16 , wherein the membrane has claim 16 , when ...

THERMOPLASTIC CROSSLINKED POLYETHYLENE MATERIAL, PREPARATION METHOD AND USE THEREOF

The present application belongs to the field of polymer materials, discloses a thermoplastic crosslinked polyethylene material, preparation method and use thereof. The thermoplastic crosslinked polyethylene material comprises a first polyethylene component that is easily crosslinked, a second polyethylene component that is not easily crosslinked, and an organic peroxide crosslinking agent. In the present application, the product of the first polyethylene that is easily crosslinked, is crosslinked in a fine particle form and uniformly dispersed in the second polyethylene component that is not easily crosslinked, and intertwined with the macromolecular chain of the second polyethylene component that is not easily crosslinked. The resulted product is completely thermoplastic, and has properties, such as heat resistance and creep property, superior to the first polyethylene component that is easily crosslinked and the second polyethylene component that is not easily crosslinked. 1. A thermoplastic crosslinked polyethylene material , wherein the thermoplastic crosslinked polyethylene material comprises the following raw materials in parts by weight:30˜70 parts of a first polyethylene component;30˜70 parts of a second polyethylene component; and0.15˜0.35 part of a crosslinking agent;the first polyethylene component is an ethylene homopolymer free of antioxidants or other free radical scavengers;the second polyethylene component is an ethylene homopolymer containing antioxidants or other free radical scavengers, or a copolymer of ethylene and a non-ethylene monomer.2. The thermoplastic crosslinked polyethylene material according to claim 1 , wherein the non-ethylene monomer is one or more of butene claim 1 , hexene and octene.3. The thermoplastic crosslinked polyethylene material according to claim 1 , wherein the thermoplastic crosslinked polyethylene material comprises the following raw materials in parts by weight:35 parts of the first polyethylene component;65 parts of ...

Process to Make High Density Ethylene-Based Polymer Compositions with High Melt Strength

A process for producing a composition comprising A) an ethylene-based polymer that has a density greater than, or equal to, 0.940 g/cc, and B) an ethylene homopolymer formed by polymerizing a reaction mixture comprising ethylene, using a free-radical, high pressure polymerization process includes adding component (A) to a molten stream of component (B) after component (B) exits the separator and before component (B) is solidified in the pelletizer. A polymerization configuration for producing the composition includes at least one reactor, at least one separator, at least one pelletizer, and a device used to feed component (A), in the molten state, to a molten stream of component (B) before the pelletizer. The composition has a ratio of the melt strength of the composition to the melt strength of component (B) is greater than or equal to 1.04 and a density of greater than 0.920 g/cc. 1. A process for producing a composition comprising the following:A) an ethylene-based polymer that has a density greater than, or equal to, 0.940 g/cc, andB) an ethylene homopolymer, formed by polymerizing a reaction mixture comprising ethylene, using a free-radical, high pressure polymerization process; andwherein component (B) is polymerized in a polymerization configuration comprising at least one reactor, at least one separator, and at least one pelletizer, andwherein component (A) is added to a molten stream of component (B), after component (B) exits the separator and before component (B) is solidified in the pelletizer.2. The process of claim 1 , wherein the at least one reactor is a tubular reactor.3. The process of claim 1 , wherein the ethylene-based polymer of component (A) is added to the molten stream of component (B) using a side-arm extruder.4. The process of claim 1 , wherein component (A) and component (B) are mixed in at least one static mixer before the pelletizer.5. A polymerization configuration for producing a composition comprising the following:A) an ethylene- ...

HIGH FLOW POLYPROPYLENE WITH EXCELLENT MECHANICAL PROPERTIES

Polymer composition of a propylene copolymer and a high density polyethylene, wherein said composition has a MFRof at least 25.0 g/10 min and said propylene copolymer has a xylene cold soluble content in the range of 7.0 to below 20.0 wt.-%; a comonomer content in the range of 3.0 to 12.0 wt.-%; a shear thinning index (SHI 0/50) of at least 7.5; wherein further the xylene cold soluble fraction of the propylene copolymer has a comonomer content in the range of 25.0 to 45.0 wt.-%. 1. A polymer composition having a melt flow rate MFR(230° C.) measured according to ISO 1133 of at least 25.0 g/10 min , said polymer composition comprising: (a1) a xylene cold soluble (XCS) content determined according to ISO 16152 (25° C.) in the range of 7.0 to below 20.0 wt.-%;', '(a2) a comonomer content in the range of 3.0 to 12.0 wt.-%;', '(a3) a shear thinning index (SHI 0/50) of at least 7.5;', 'wherein further', '(a4) the xylene cold soluble (XCS) fraction of the propylene copolymer (Co) has a comonomer content in the range of 25.0 to 45.0 wt.-%;, '(a) a propylene copolymer (Co) having'}and(b) a high density polyethylene (HDPE).2. The polymer composition according to claim 1 , wherein the polymer composition has(a) an hexane soluble content of below 6.0 wt.-%;and/or(b) a xylene cold soluble (XCS) content determined according to ISO 16152 (25° C.) in the range of 7.0 to below 20.0 wt.-%;and/or(c) shear thinning index (SHI 0/50) of at least 7.5.3. The polymer composition according to claim 1 , wherein the propylene copolymer (Co) has{'sub': '2', '(a) a melt flow rate MFR(230° C.) measured according to ISO 1133 of at least 30.0 g/10 min;'}and/or(b) a melting temperature of at least 155° C. measured according to ISO 11357-3.4. The polymer composition according to claim 1 , wherein the intrinsic viscosity (IV) of the xylene cold soluble (XCS) fraction of the propylene copolymer (Co) measured according to DIN ISO 1628/1 (in decalin at 135° C.) is in the range of 1.8 to 3.0 dl/g.5. The ...

Lubricating tube and slide rail device having same

A lubricating tube includes an inner surrounding surface that has a non-circular cross-section, angularly spaced-apart inner lubricant-storing recesses, and guide surface portions each of which is interconnected between two adjacent ones of the inner lubricant-storing recesses. The inner lubricant-storing recesses and the guide surface portions constitute the inner surrounding surface and cooperatively define a roller passage hole. The inner lubricant-storing recesses are indented from the guide surface portions toward the outer surrounding surface. A slide rail device having the lubricating tube is also disclosed.

Composition for Odor Suppression for Post Consumer Resin

The present disclosure provides a composition. In an embodiment, the composition includes a polymer component and an odor suppressant. The polymer component includes (i) a post-consumer resin and (ii) optionally an olefin-based polymer. The composition further includes from 0.15 wt % to 15 wt % of the odor suppressant. The odor suppressant includes (i) from 0.05 wt % to 2 wt % of a metal oxide having a band gap greater than 5.0 electron volts (eV); and (ii) from 0.1 wt % to 13 wt % an acid copolymer. The ratio of metal oxide to acid copolymer is from 1:20 to 1:1. Weight percent is based on total weight of the composition. 1. A composition comprising:a polymer component comprising (i) a post-consumer resin (PCR) and (ii) optionally an olefin-based polymer;from 0.15 wt % to 15 wt % of an odor suppressant based on total weight of the composition, the odor suppressant comprising(i) from 0.05 wt % to 2 wt % based on total weight of the composition of a metal oxide having a band gap greater than 5.0 electron volts (eV); and(ii) from 0.1 wt % to 13 wt % based on total weight of the composition of an acid copolymer; andthe ratio of metal oxide to acid copolymer is from 1:20 to 1:1.2. The composition of wherein the composition exhibits at least a 20% reduction in volatile hetero-carbonyl species compared to the polymer component without the odor suppressant as measured by normalized gas chromatography.3. The composition of wherein the polymer component comprises 100 wt % post-consumer resin based on the total weight of the polymer component.4. The composition of wherein the polymer component comprises from 5 wt % to 95 wt % PCR and from 95 wt % to 5 wt % of the olefin-based polymer.5. The composition of wherein the olefin-based polymer is selected from the group consisting of ethylene-based polymer claim 1 , propylene-based polymer claim 1 , and combinations thereof.6. The composition of wherein the metal oxide is selected from the group consisting of calcium oxide and ...

PROCESS FOR FOAMING POLYOLEFIN COMPOSITIONS USING A FLUORORESIN/BORON NITRIDE MIXTURE AS A NUCLEATING AGENT

The process of foaming a polyolefin composition using as a nucleator a combination of a fluororesin and a boron nitride at a fluororesin-to-boron nitride weight ratio of less than 4:1. The synergistic effect between these two nucleating agents results in a higher nuclei density and a foamed product with a smaller average cell size as compared to processes using and products produced by the use of neat PTFE or neat boron nitride alone as the nucleating agent. 1. A process of foaming a polyolefin composition using as a nucleator a combination of a fluororesin and a boron nitride at a fluororesin-to-boron nitride weight ratio of less than 4:1.2. The process of claim 1 , wherein said fluororesin-to-boron nitride weight ratio is in the range of from 1:1 to 1:4.3. The process of either claim 1 , wherein said polyolefin composition comprises a high-density polyethylene (“HDPE”) and a low-density polyethylene (“LDPE”).4. The process of claim 1 , wherein said polyolefin composition consists of HDPE and LDPE.5. The process of claim 4 , wherein said HDPE constitutes from 45 to 95 weight percent based on the entire weight of said polyolefin composition claim 4 , wherein said LDPE constitutes from 4 to 54 weight percent based on the entire weight of said polyolefin composition.6. The process of claim 1 , wherein said fluororesin comprises polytetrafluoroethylene (“PTFE”).7. The process of claim 1 , wherein said fluororesin and boron nitride are present in a combined amount in the range of from 0.01 to 1 weight percent based on the total weight of said polyolefin composition.8. A foamable composition comprising claim 1 , in weight percent based on the total weight of the composition:(a) 45 to 95% HDPE;(b) 4 to 54% LDPE;(c) 0.01 to 1% of a combination of a fluororesin and a boron nitride at a fluororesin-to-boron nitride weight ratio of less than 4:1.9. A foam prepared from said foamable composition of .10. A cable comprising an insulation layer comprising the foam of . Various ...

POLYETHYLENE COMPOSITIONS, AND ARTICLES MADE THEREFROM

The invention provides a composition comprising a blend, the blend comprising a polyethylene resin comprising a first molecular weight ethylene-based polymer component and a second molecular weight ethylene-based polymer component, wherein the polyethylene resin has a density from 0.940 to 0.960 g/cc, and an ultra-high molecular weight ethylene-based polymer having an intrinsic viscosity from 5 to 50 deciliters/gram. 1. A composition comprising a blend , the blend comprising:a polyethylene resin comprising a first molecular weight ethylene-based polymer component having a density from 0.910 to 0.940 g/cc and a second molecular weight ethylene-based polymer component, wherein the polyethylene resin has a density from 0.940 to 0.960 g/cc; andan ultra-high molecular weight ethylene-based polymer having an intrinsic viscosity from 5 to 50 deciliters/gram.2. The composition of claim 1 , wherein the polyethylene resin has a high load melt index (I21) from 1 to 20 g/10 min.3. (canceled)4. The composition of claim 1 , wherein the high load melt index (I21) of the first molecular ethylene-based polymer component is from 0.05 to 1.2 g/10 min.5. The composition of claim 1 , wherein the weight ratio of the first molecular weight ethylene-based polymer component to the second molecular weight ethylene-based polymer component is from 0.4 to 2.3.6. The composition of claim 1 , wherein the density of the ultra-high molecular weight ethylene-based polymer is from 0.920 to 0.945 g/cc.7. The composition of claim 1 , wherein the ultra-high molecular weight ethylene-based polymer has a weight average molecular weight of greater than 1 claim 1 ,000 claim 1 ,000 g/mole.8. The composition of claim 1 , wherein the weight ratio of the polyethylene resin to the ultra-high molecular weight ethylene-based polymer is from 0.4 to 2.3.9. The composition of claim 1 , wherein the blend has a high load melt index (I21) from 0.1 to 20 g/10 min.10. The composition of claim 1 , further comprising a ...

METHOD FOR PRODUCING RESIN COMPOSITION COMPRISING MODIFIED MICROFIBRILLATED PLANT FIBERS, AND SAME RESIN COMPOSITION

The present invention provides a method for producing a resin composition, which, by means of simple steps, can uniformly disperse microfibrillated plant fiber in a highly hydrophobic resin and can impart enhanced mechanical strength to a molding material obtained by molding the resin composition. The present invention further provides a resin composition having excellent heat resistance and low linear thermal expansion. The present invention relates to a method for producing a resin composition, the method including a step of mixing a thermoplastic resin or thermosetting resin (A), and modified plant fiber (b) or modified microfibrillated plant fiber (B), in the presence of an organic liquid (C), the modified plant fiber (b) or modified microfibrillated plant fiber (B) being obtained by modification with an alkyl or alkenyl succinic anhydride in a liquid capable of swelling microfibrillated plant fiber (B′) or plant fiber (b). 1. A method for producing a resin composition comprising the step of:(1) mixing a thermoplastic resin or thermosetting resin (A) with modified microfibrillated plant fiber (B) or modified plant fiber (b) in the presence of an organic liquid (C), the modified microfibrillated plant fiber (B) or modified plant fiber (b) being obtained by modification with an alkyl or alkenyl succinic anhydride in a liquid capable of swelling microfibrillated plant fiber (B′) or plant fiber (b′).2. The method according to claim 1 , further comprising the step of (2) kneading the mixture obtained in step (1).3. The method according to claim 2 , wherein the modified microfibrillated plant fiber (B) or modified plant fiber (b) in step (1) is modified plant fiber (b) claim 2 , and during the kneading in step (2) claim 2 , the modified plant fiber (b) is defibrated in the thermoplastic resin or thermosetting resin (A) and the modified microfibrillated plant fiber (B) is dispersed in the thermoplastic resin or thermosetting resin (A).4. A method for producing a resin ...

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 ...

RESIN COMPOSITION AND FILM COMPRISING IT

To provide a resin composition comprising a cyclic polyolefin and an ethylene polymer, having excellent impact resistance and having high transparency maintained. 1. A resin composition comprising from 5 to 95 parts by weight of a cyclic polyolefin (A) and from 5 to 95 parts by weight of an ethylene polymer (B) which satisfies the following requirements (a) to (d) (the total amount of (A) and (B) is 100 parts by weight):{'sup': '3', '(a) the density as measured by density gradient tube method in accordance with JIS K6922-1 is from 930 to 960 kg/m;'}(b) the melt mass flow rate as measured in accordance with JIS K6922-1 at 190° C. under a load of 21.18 N is from 0.1 to 15 g/10 min;(c) in molecular weight measurement by gel permeation chromatography, two peaks are observed, and the ratio (Mw/Mn) of the weight average molecular weight (Mw) to the number average molecular weight (Mn) is within a range of from 3.0 to 7.0; and(d) a fraction having Mn of at least 100,000 as obtained by molecular weight fractionation, has at least 0.15 long-chain branches having at least 6 carbon atoms per 1,000 carbon atoms of the main chain.2. The resin composition according to claim 1 , which comprises from 10 to 90 parts by weight of the cyclic polyolefin resin (A) and from 10 to 90 parts by weight of the ethylene polymer (B).3. The resin composition according to claim 1 , which comprises from 20 to 40 parts by weight of the cyclic polyolefin (A) and from 60 to 80 parts by weight of the ethylene polymer (B).4. The resin composition according to claim 1 , wherein of the ethylene polymer (B) claim 1 , Mw/Mn is within a range of from 3.0 to 6.0 claim 1 , and Mn is at least 15 claim 1 ,000.5. The resin composition according to claim 1 , wherein the proportion of a component having Mn of at least 100 claim 1 ,000 as obtained by molecular weight fractionation of the ethylene polymer (B) claim 1 , is less than 40% of the entire ethylene polymer (B).6. The resin composition according to claim 1 ...

POLYOLEFIN RESIN COMPOSITION, MOLDING, AND POLYOLEFIN RESIN FILM

The present invention provides a polyolefin-based resin composition that has improved resilience while maintaining mechanical strength and stretching properties, as well as a molded article and a polyolefin-based resin film formed from this composition. 1. A method for improving resilience of a polyolefin-based resin , comprising incorporating a polyalkylene carbonate resin and an ionic liquid in the polyolefin-based resin.2. The method according to claim 1 , wherein the polyalkylene carbonate resin is polypropylene carbonate.3. The method according to claim 1 , wherein the ionic liquid is a salt comprising a combination of a cation selected from the group consisting of ammonium ion claim 1 , pyridinium ion claim 1 , pyrrolidinium ion claim 1 , pyrrolinium ion claim 1 , oxazolium ion claim 1 , oxazolinium ion claim 1 , imidazolium ion claim 1 , thiazolium ion and phosphonium ion claim 1 , and an anion selected from the group consisting of halogen ions claim 1 , phosphate ion claim 1 , nitrate ion claim 1 , sulfate ion claim 1 , bisulfate ion claim 1 , sulfonate ion claim 1 , tosylate ion claim 1 , perchlorate ion claim 1 , aluminate ion claim 1 , dialuminate ion claim 1 , borate ion claim 1 , amide ion claim 1 , dicyanamide ion claim 1 , succinate ion claim 1 , thiocyanate ion claim 1 , and carboxylate ion.4. The method according to claim 1 , wherein 0.05 to 20 parts by mass of polyalkylene carbonate resin and 0.01 to 5 parts by mass of ionic liquid are incorporated in 100 parts by mass of the polyolefin-based resin.5. The method according to claim 1 , wherein the polyolefin-based resin is polypropylene or polyethylene.6. The method according to claim 1 , wherein the polyolefin-based resin is polypropylene.7. The method according to claim 2 , wherein the ionic liquid is a salt comprising a combination of a cation selected from the group consisting of ammonium ion claim 2 , pyridinium ion claim 2 , pyrrolidinium ion claim 2 , pyrrolinium ion claim 2 , oxazolium ion ...

Thermoplastic Elastomer Compositiions Comprising Ultrahigh Molecular Weight Polyethylene and Methods for Making the Same

Described herein are thermoplastic elastomer compositions that comprise 30-60 wt % of a thermoplastic vulcanizate, 5 to 25 wt % of a thermoplastic resin, 5 to 25 wt % of a high density polyethylene, and 5 to 40 wt % of a ultrahigh molecular weight polyethylene. The thermoplastic elastomer compositions may be particularly useful in forming laminates, such as slip coat laminates for glass run channels. 1. A thermoplastic elastomer composition comprising:(a) 30 to 60 wt %, based on the weight of the composition, of a thermoplastic vulcanizate, wherein the thermoplastic vulcanizate comprises a rubber phase that is dispersed and at least partially cross-linked within a continuous thermoplastic resin component;(b) 5 to 25 wt %, based on the weight of the composition, of thermoplastic resin;(c) 5 to 25 wt %, based on the weight of the composition, of a high density polyethylene; and(d) 5 to 40 wt %, based on the weight of the composition, of an ultrahigh molecular weight polyethylene.2. The thermoplastic elastomer composition of claim 1 , wherein the composition comprises 40 to 50 wt % of the thermoplastic vulcanizate claim 1 , based on the weight of the composition.3. The thermoplastic elastomer composition of claim 1 , wherein the thermoplastic vulcanizate comprises 20 to 60 wt % of continuous thermoplastic resin component claim 1 , 10 to 40 wt % of rubber claim 1 , and 15 to 50 wt % of oil.4. The thermoplastic elastomer composition of claim 1 , wherein the thermoplastic vulcanizate comprises thermoplastic resin that has a melt flow rate of less than 2 g/10 min.5. The thermoplastic elastomer composition of claim 1 , wherein the composition comprises 10 to 20 wt % of the thermoplastic resin claim 1 , based on the weight of the composition.6. The thermoplastic elastomer composition of claim 1 , wherein the thermoplastic resin has a melt flow rate of from 5-25 g/10 min.7. The thermoplastic elastomer composition of claim 1 , wherein the composition comprises 5 to 20 wt % of ...

PROCESS FOR FOAMING POLYOLEFIN COMPOSITIONS USING AN AZODICARBONAMIDE/CITRATE MIXTURE AS A NUCLEATING AGENT

A process of foaming a polyolefin, e.g., polyethylene, composition using as a nucleator a combination of (A) azodicarbonamide, and (B) a mixture of (1) a first component consisting of at least one of citric acid and an alkali metal citrate, and (2) a second component consisting of at least one of an alkali metal citrate, a di-alkali metal hydrogen citrate, an alkali metal dihydrogen citrate and an alkali metal bicarbonate, with the proviso that the mixture is not solely composed of alkali metal citrate. 1. A process of foaming a polyolefin using as a nucleator a combination of:(A) azodicarbonamide (“ADCA”), and (1) a first component consisting of at least one of citric acid and an alkali metal citrate, and', '(2) a second component consisting of at least one of an alkali metal citrate, a di-alkali metal hydrogen citrate, an alkali metal di-hydrogen citrate, and an alkali metal bicarbonate, with the proviso that said mixture is not solely composed of alkali metal citrates,, '(B) a mixture ofwherein said polyolefin and said nucleator are present as components in a foamable polyolefin composition,wherein said ADCA and said mixture are present in an ADCA-to-mixture weight ratio ranging from less than 80:20 to greater than 15:85.2. The process of claim 1 , wherein said polyolefin comprises a combination of high-density polyethylene (“HDPE”) and low-density polyethylene (“LDPE”).3. The process of claim 2 , wherein said polyolefin consists of a combination of HDPE and LDPE.4. The process of claim 2 , wherein said HDPE is present in an amount ranging from 45 to 95 weight percent based on the total weight of said foamable polyolefin composition claim 2 , wherein said LDPE is present in an amount ranging from 4 to 54 weight percent based on the total weight of said foamable polyolefin composition.5. The process of claim 1 , wherein the alkali metal in each of the compounds identified in said first and second components is sodium.6. The process of claim 1 , wherein said ...

Process For Producing High Density Polyethylene Composition Having High Environmental Stress Crack Resistance From Post Consumer Plastic and Articles Made of Said Composition

A process may include providing a polyethylene post consumer resin, providing a virgin polyethylene resin, and blending the polyethylene post consumer resin with the virgin polyethylene resin to produce a composition. The polyethylene post consumer resin may have an ESCR of at most 10 hours, a density ranging from 0.950 to 0.967 g/cm, and an HLMI of 40 to 70 g/10 min. The virgin polyethylene resin may include fractions A and B, with fraction A having a higher molecular weight and lower density than fraction B. Fraction A may have an HL275 of at least 0.1 g/10 min and of at most 4 g/10 min, and a density of at least 0.920 g/cmand of at most 0.942 g/cm. The virgin polyethylene resin may have an HLMI of 5 to 75 g/10 min, and a density ranging from 0.945 to 0.960 g/cm. 1. A process to produce a polyethylene composition comprising post consumer resin (PCR) comprising the steps of:{'sup': '3', 'providing a high density polyethylene post consumer resin (PCR) having an ESCR (100%) of at most 10 hours as determined according to ASTM D 1693 (2013) condition B, a density ranging from 0.950 to 0.967 g/cmas determined according to ASTM 1505 at a temperature of 23° C., an HLMI of 40 to 70 g/10 min as determined according to ISO 1133, condition G, at 190° C. and 21.6 kg;'}{'sup': 3', '3', '3, 'providing a virgin Ziegler-Natta catalyzed polyethylene resin, wherein the virgin Ziegler-Natta catalyzed polyethylene resin has a multimodal distribution and comprises at least two polyethylene fractions A and B, fraction A having a higher molecular weight and lower density than fraction B, wherein fraction A has a HL275 of at least 0.1 g/10 min and of at most 4 g/10 min as determined according to ISO 1133, condition G, at 190° C. and under a load of 21.6 kg wherein a die of 2.75 mm broad was used and has a density of at least 0.920 g/cmand of at most 0.942 g/cm; and wherein the virgin Ziegler-Natta catalyzed polyethylene resin has an HLMI of 5 to 75 g/10 min as determined according to ISO ...

Roofing compositions comprising high density polyethylene

Provided is a polymer blend composition comprising high density polyethylene, a propylene polymer having rubber dispersed therein, and a propylene/ethylene copolymer. In one embodiment, there is provided a polymer blend composition comprising from 20 to 55 weight percent of the high density polyethylene, from 20 to 55 weight percent of a propylene polymer having from 10-60% crystallinity, and a propylene/ethylene copolymer comprising the remainder of the composition.

Polyvinyl chloride modifier and composite, and preparation method therefor

The present invention discloses a polyvinyl chloride modifier, composition and a preparation method thereof. The composition comprises the following components by parts by weight: (a) polyvinyl chloride resin of 100 parts, and (b) a toughening modifier of 2-16 parts, the toughening modifier being rubber powder whose an elongation at break is greater than 2201% and which contains weight percentage of chlorine of 5-45 wt %. The elongation at break of the polyvinyl chloride composition of the present invention is greatly improved, and the defect of low elongations at break of polyvinyl chloride product is substantially solved accordingly, therefore, the application scope of polyvinyl chloride surely will be greatly widened.

COMPATIBILIZATION OF POST CONSUMER RESINS

Compositions comprising post-consumer recycled (PCR) waste are described. The PCR is combined with at least one virgin resin and a propylene-based compatibilizer that enhances the blend between the PCR and virgin resin as well as improving one or more physical properties of the composition. The propylene-based compatibilizer is a reactor made thermoplastic polyolefin or a heterophasic copolymer with a semi-crystalline matrix and a rubber component. This allows for the selection of a compatibilizer that can shift the composition's physical properties based on the end use application, and provide a stronger, miscible blend. 1. A composition comprising:(A) a virgin resin having a first polyolefin;(B) a post-consumer recycled resin having a second polyolefin;(C) a polypropylene-based compatibilizer, wherein the polypropylene-based compatibilizer has a semi-crystalline matrix and a rubber component.2. The composition of claim 1 , wherein a flexural modulus of the composition is between about 155 to about 300 kPSI claim 1 , wherein a notched Izod Impact at 73° F. of the composition is between about 0.4 to about 12 ft-lb/in claim 1 , and wherein flexural modulus/notched Izod Impact values range from about 10 to about 650 kpsi/ft-lb/in.3. The composition of claim 1 , wherein the first polyolefin is polypropylene.4. The composition of claim 1 , wherein the second polyolefin is polyethylene.5. The composition of claim 1 , wherein the first and the second polyolefin are the same polyolefin.6. The composition of claim 1 , wherein the first and the second polyolefin are different polyolefins.7. The composition of claim 1 , wherein the virgin resin is present in an amount of about 20 to about 80 wt. %.8. The composition of claim 1 , wherein the post-consumer recycled resin is present in an amount of about 5 to about 50 wt. %.9. The composition of claim 1 , wherein the polypropylene-based compatibilizer is present in an amount of about 10 to about 50 wt. %.10. The composition of ...

METHOD FOR IMPROVING THE OPERABILITY OF AN OLEFIN POLYMERIZATION REACTOR

The present technology relates to a method of introducing a supported antistatic compound that does not comprise a transition-metal-based catalyst component for use in an olefin polymerization reactor. In some embodiments, the methods disclosed herein avoid the formation of polymer agglomerates in the reactor and minimize potentially negative effects on catalyst yield. 1. A polyolefin-based composition comprising:(A) a first polymer composition comprising a polyolefin grafted with an unsaturated monomer;(B) a second polymer composition comprising a polyethylene; and [{'sub': '1', '(i) a first polyisobutylene having a Viscosity Average Molecular Weight (VAMW); and'}, {'sub': '2', '(ii) a second polyisobutylene having a Viscosity Average Molecular Weight (VAMW);'}, {'sub': 1', '2, 'wherein VAMW≠VAMW.'}], '(C) a third polymer composition comprising2. The polyolefin-based composition of claim 1 , further comprising an additives composition having one or more additives.3. The polyolefin-based composition of claim 1 , wherein the polyolefin grafted with an unsaturated monomer is a polyethylene grafted with maleic anhydride.4. The polyolefin-based composition of claim 1 , wherein the polyethylene is a high density polyethylene.5. The polyolefin-based composition of claim 1 , wherein the first polyisobutylene and the second polyisobutylene are present in an about 50:50 ratio.6. The polyolefin-based composition of claim 1 , wherein{'sub': '1', 'sup': 4', '5, '(A) VAMWis from about 3*10to about 1*10grams per mole; and'}{'sub': '2', 'sup': 5', '6, '(B) VAMWis from about 2*10to about 5*10grams per mole.'}7. The polyolefin-based composition of claim 1 , wherein{'br': None, 'sub': 1', '2, '(5*VAMW) Подробнее

Lignin Composites Comprising Activated Carbon For Odor Reduction

The present invention relates to lignin compositions and methods for producing lignin composite materials. Composites of this invention substantially reduce or eliminate odor emanating from lignin that would otherwise be present.