ДИСПЕРГАТОРЫ В КОМПОЗИТАХ

В заявке описана композиция, включающая (а) полистирольный или полиолефиновый полимер, (б) тальк в качестве наполнителя со средним размером частиц от 0,4 до 25 мкм, содержащегося в количестве от 0,1 до 10% в пересчете на массу компонента (а), и (в) диспергатор, который основан на сорбитановом сложном эфире, полиэтилен-блок-полиэтиленоксиде или амфифильном статистическом, блочном или гребнеобразном сополимере, где сополимер включает С12-С32 алкил(мет)акрилат. Также представлен способ получения синтетического полимерного материала, включающий смешение в расплаве смеси указанных компонентов и применение диспергатора (в) для диспергирования талькового наполнителя (б) в упомянутой полистирольной или полиолефиновой полимерной матрице с получением композитного материала. Композиции, согласно изобретению, имеют улучшенные модуль упругости при растяжении, предел прочности при разрыве и температуру тепловой деформации под нагрузкой. 2 н. и 18 з.п. ф-лы, 8 табл.

МАТРИЦА, СИСТЕМА И СПОСОБ СОВМЕСТНОЙ ЭКСТРУЗИИ МНОЖЕСТВА ЖИДКОСТНЫХ СЛОЕВ

Заявленное изобретение относится к матрице для совместной экструзии, системе совместной экструзии и способу совместной экструзии множества жидкостных слоев. Техническим результатом заявленного изобретения является сохранение физической целостности и независимых свойств микрослоев получаемой пленки в сочетании с обычными более толстыми слоями. Технический результат достигается матрицей для совместной экструзии множества жидкостных слоев, которая содержит пуансон для начального формообразования, одну или несколько распределительных плит. Причем канал для выпуска жидкости из каждой плиты гидравлически сообщается с пуансоном для начального формообразования и служит для осаждения жидкостного слоя на этот пуансон. Узел формирования микрослоев содержит пуансон для микрослоев и множество микрослойных распределительных плит. Причем канал для выпуска жидкости из каждой этой плиты гидравлически сообщается с пуансоном для формирования микрослоев и служит для осаждения жидкостного микрослоя на этот ...

ПЛЕНКА ДЛЯ ЭТИКЕТОК ДЛЯ СПОСОБА ГЛУБОКОЙ ВЫТЯЖКИ

Изобретения относятся к применению двухосно-ориентированной пленки в качестве этикетки сосуда и способу получения этикетированного сосуда. Двухосно-ориентированную пленку с микропористым слоем, содержащую пропиленовый полимер и по меньшей мере один β-зародышеобразователь, и с микропористостью, созданную путем преобразования β-кристаллического полипропилена в α-кристаллический полипропилен при вытягивании пленки, применяют в качестве этикетки сосуда. Этикетку используют для этикетирования сосуда в процессе его формирования глубокой вытяжкой. Техническим результатом является создание пленки для этикеток, которую можно применять в процессе глубокой вытяжки и которая проявляет хорошую адгезию к сосуду и не имеет воздушных включений. 3 н. и 10 з.п. ф-лы, 4 ил.

СОЭКСТРУДИРОВАННАЯ МНОГОСЛОЙНАЯ ПЛАСТМАССОВАЯ ТРУБА, СПОСОБ И УСТРОЙСТВО ДЛЯ ЕЕ ПОЛУЧЕНИЯ

Изобретение относится к области производства труб. Соэкструдированная многослойная пластмассовая труба содержит одну или более внутренних труб, окруженных средним слоем из более мягкого материала, чем внутренняя труба, и наружную трубу, заключающую в себя средний слой, окружающий одну или более внутренних труб. Внутренняя труба имеет кольцевую жесткость выше, чем кольцевая жесткость среднего слоя, а сжатие стенки среднего слоя составляет по меньшей мере 1,5% от внутреннего диаметра трубы. Сжатый газ вводят в полимерный материал в зоне пластицирования шнека для среднего слоя в точке, где полимерный материал является, по существу, уже расплавленным, а газ смешивают с полимерным материалом и экструдируют в полость, образованную внутренней трубой (трубами) и наружной трубой. Калибровочное устройство, которое калибрует наружную и внутреннюю поверхности многослойной трубы одновременно, монтируется так близко к соплу формующего инструмента, что часть вспенивания обеспечивается в калибровочном ...

ПЛЕНКА ДЛЯ ИЗГОТОВЛЕНИЯ ВПЛАВЛЯЕМОЙ ЭТИКЕТКИ, СПОСОБ ПОВЫШЕНИЯ ЕЕ ТЕХНОЛОГИЧНОСТИ, СПОСОБ ЭТИКЕТИРОВАНИЯ ИЗДЕЛИЙ И ЭТИКЕТИРОВАННОЕ ИЗДЕЛИЕ (ВАРИАНТЫ)

... 1. Пленка для изготовления вплавляемой этикетки, содержащая основной слой и термоплавкий слой, отличающаяся тем, что основной слой имеет первую и вторую поверхности, а термоплавкий слой имеет внутреннюю поверхность и внешнюю поверхность, причем внутренняя поверхность термоплавкого слоя расположена над первой поверхностью основного слоя, при этом термоплавкий слой содержит полиэтилен очень низкой плотности, полиэтилен высокой плотности и по крайней мере один алкеновый сополимер, выбранный из группы, включающей сополимер алкена и винилкарбоксилата, сополимер алкена и метакриловой кислоты, сополимер алкена и алкилметакрилата, сополимер на основе солей щелочных металлов или цинка метакриловой кислоты и алкена и смесь по меньшей мере двух вышеприведенных алкеновых сополимеров.2. Пленка по п.1, отличающаяся тем, что термоплавкий слой содержит примерно от 1 до 30 мас.% полиэтилена высокой плотности.3. Пленка по п.1, отличающаяся тем, что сополимер винилкарбоксилата и алкена является сополимером ...

СПОСОБ ПОЛУЧЕНИЯ МИКРОПОРИСТЫХ ПОЛИОЛЕФИНОВЫХ МЕМБРАН И МИКРОПОРИСТЫЕ МЕМБРАНЫ

... 1. Способ получения микропористых полиолефиновых мембран, включающий стадии (1) смешивания в расплаве полиолефина и мембранообразующего растворителя, (2) экструдирования полученного смешанного расплава через матричное отверстие, (3) охлаждения экструдата с образованием гелевой формы, (4) по меньшей мере, одноосного растяжения гелевой формы, (5) удаления мембранообразующего растворителя и (6) повторного растяжения полученной мембраны, причем температура повторного растяжения равна или ниже температуры кристаллизации РЕ +20°С, и скорость повторного растяжения составляет 3%/сек или более в направлении растяжения. ! 2. Способ по п.1, где увеличение при повторном растяжении составляет 1,1-2,5 раза в направлении повторного растяжения. ! 3. Способ по п.1, где мембрану термоотверждают при температуре, равной или ниже температуры плавления полиолефина +10°С после второго растяжения. ! 4. Способ по п.1, где после упомянутого повторного растяжения проводят отжиг таким образом, что длина мембраны в ...

Verbesserungen im Recyclingsprozess zur Wiederverwendung des Haushaltabfalls

BIORIENTIERTE POLYETHYLENFOLIE MIT HOHER WASSERDAMPFDURCHLASSRATE

BIAXIALLY ORIENTED POLYOLEFIN FILMS

Closures and containers in combination therewith

PROCEDURE FOR THE PRODUCTION OF CATCHES

PROCEDURE FOR THE CONNECTION OF A MULTI-LAYER PIPE

PROCEDURE FOR THE PRODUCTION OF STRETCHED FOIL

REMOVABLE OVER BAG FOILS

PROCEDURE FOR THE RE-USE OF COMPOSITE MATERIALS

DISPERSING AGENT IN COMPOSITE MATERIALS

WARM-SHRINKING CASING.

PROCEDURE AND DEVICE FOR FORMING ARTICLES OUT OF THERMOPLASTIC PLASTIC USING GRANULATES OR POWDER.

PROCEDURE FOR MANUFACTURING A SANDWICH FOIL

CATCH AND CONTAINER COMBINATION

MULTILEVEL STRUCTURES FROM SINGLE SITE CATALYZED POLYMERS

MULTILEVEL DEEP-DRAWING FOIL

Kink resistant peel away medical sheath

Devices and methods for providing a kink resistant peel away sheath are disclosed. One device includes a sheath for insertion into a vasculature of a patient. The sheath (300) comprises a sheath body (105) having an outer surface, a longitudinal axis and a lumen (108) formed therethrough. The sheath body (105) comprises an inner layer (110) arranged about the longitudinal axis, an outer layer (120) coaxially arranged with the inner layer (110), and a support layer (130) positioned between the inner and outer layers (110,120), wherein the inner, outer and support layers (110, 120, 130) are laminated together to form the sheath body (105). The sheath (300) also comprises at least one shear line (144) positioned beneath the outer surface of the sheath body (105), and configured to facilitate the longitudinal separation of the sheath body (105) along the at least one shear line (144).

Methods, compositions and blends for forming articles having improved environmental street crack resistance

Peelable overpouch films

High optics machine direction oriented label facestock

Machine direction oriented coextruded multilayer film structures for use as labelstock and die cut adhesive labels are described. The labelstocks comprise extruded machine direction oriented multilayer films and an adhesive layer. The multilayer film structures include skin layers made from a mixture of 70% to about 99.9% by weight of at least one propylene polymer, and from about 0.1% to about 20% by weight of at least one ethylene polymer, or from about 0.1% to about 25% by weight of at least one propylene polymer, and from about 75% to about 99.9% by weight of at least one ethylene polymer. The coextruded multilayer films are stretch oriented in the machine direction at a temperature at about or above the melting temperature of the polyethylenes and optionally include an adhesive layer and release liner.

Single-layer polypropylene membrane film for batteries, having a shut-off function

Flexible, multiple-compartment drug container and method of making and using same

Bioriented polyethylene film with a high water vapor transmission rate

PROCESS FOR PRODUCING NONSTRETCHED FILM, PROCESS FOR PRODUCING RESIN COATED METAL PLATE, AND APPARATUS FOR PRODUCING NONSTRETCHED FILM

USE OF POLYPROPYLENE FILMS FOR IN-MOLD LABELING

The invention relates to the use of a biaxially oriented microporous film, which contains a propylene polymer and at least one .beta.-nucleating agent and whose microporosity is produced by converting .beta.-crystalline polypropylene when drawing the film, in order to label containers during blow molding.

METHOD FOR JOINING MULTI-LAYERED PIPE

A method for joining a multi-layered pipe (37) to a coupling (35), the multi- layered pipe including at least an outer (1) and an inner (5) layer of thermoplastic material and the coupling (35) comprising a thermoplastic material, the method comprising; providing a coupling (35) including a recess R for receiving an end of a multi-layered pipe (37), the recess R being configured, in use, to permit the coupling to contact the inner (5) and outermost (1) layers of a multi-layered pipe (37) received in the recess R; fitting an end of the multi-layered pipe (37) into the recess R of the coupling (35); introducing heat to both the coupling (35) sufficient to cause local melting at the interface between the coupling (35) and either the inner layer (5) alone or both the inner (5) and outer (1) layers of the multi- layered pipe (37).

TRANSPORT AND STERILIZATION CARRIER FOR FLEXIBLE, MULTIPLE COMPARTMENT DRUG CONTAINER

A transport carrier adapted for sterilization by application of E-beam radiation. The transport carrier comprises a generally rectangular container tray, the tray enclosing a volume and including an upper peripheral edge bent-over outwardly to form a horizontally oriented peripheral lip. A rail cartridge for supporting a multiplicity of containers is provided. The rail cartridge is configured to be received within the volume of the tray. A sealable film lid is affixed to the horizontally oriented peripheral lip to thereby cover the tray to form a transportable sterile containment isolator for transporting and sterilizing empty containers.

IMPROVED STRUCTURES OF POLYMERS MADE FROM SINGLE SITE CATALYSTS

Copolymers of ethylene and alpha olefins that have been formed by the polymerization reaction in the presence of a single site catalyst, such as a metallocene, are used to form collapsible dispensing containers and/or components thereof. Blends of the copolymers with propylene polymers are disclosed and used to form a body wall layer or a collapsible dispensing container head having good bond strength with a body wall layer formed of an ethylene polymer. Methods for improving the adhesion between collapsible dispensing container components, such as between body wall layer formed of an ethylene polymer and another body wall layer formed of a propylene polymer, or between a body wall layer formed of an ethylene polymer and a collapsible dispensing container head formed of a propylene polymer, are also disclosed.

SACRIFICIAL PORT FOR FILLING FLEXIBLE, MULTIPLE-COMPARTMENT DRUG CONTAINER

A sacrificial port adapted for insertion between the front and rear film sheets defining a medical container. The sacrificial port comprise;s a generally tubular, hollow filling barrel with a tapered heat seal flange. The flange includes central orifices which communicate with the tubular filling barrel. The filling barrel terminates at the flange orifice at a first end. A first grasping flange is disposed along the length of the filling barrel. The first grasping flange extends from the barrel in a direction orthogonal to the barrel's central axis. A second grasping flange is disposed along the length of the barrel and spaced-apart along the length of the barrel from the first grasping flange. The second grasping flange extends outwardly from the barrel and parallel to the first grasping flange.

SINGLE-LAYER MEMBRANE FILM FOR BATTERIES HAVING A SHUT-OFF FUNCTION

The invention relates to a biaxially oriented single-layer microporous film that has a shut-off function and is made of propylene homopolymer, propylene block copolymer I, and ß-nucleation agent. The melting range of the propylene block copolymer I starts at a temperature ranging from 50 to 120°C.

NONWOVEN FIBROUS EMBOSSED PLASTIC FILM

An embossed thermoplastic liquid barrier film is disclosed having a visible nonwoven fibrous three-dimensionally embossed pattern having raised fiber bosses (5) intersecting other raised fiber bosses (6) in the film on both sides. The films have thicknesses of about 0.5 to about 2 mils and an embossed depth to provide the visible nonwoven fibrous three-dimensionally embossed pattern with the film having a soft hand feel.

ГЕОМЕМБРАНЫ

В изобретении предложены геомембраны, имеющие хорошие технологические характеристики, высокое сопротивление растрескиванию при напряжениях, хорошие механические свойства при растяжении и высокую ударную вязкость, изготовленные из бимодального полиэтилена средней плотности.

СПОСОБ УЛЬТРАЗВУКОВОЙ СВАРКИ И ЯЧЕИСТЫЕ (СОТОВЫЕ) СИСТЕМЫ ОГРАНИЧЕНИЯ, ПОЛУЧЕННЫЕ С ЕГО ИСПОЛЬЗОВАНИЕМ

Изобретение относится к способам ультразвуковой сварки, которые не требуют внешнего давления в процессе сварки. Множество многослойных полос может быть сварено таким образом, что зона сварного шва не станет тоньше, чем толщина остальные полос и будет хорошо защищена от УФ-излучения. Способ состоит из укладки множества полос; приложения внешнего давления; снятия внешнего давления; установки ультразвукового сварочного аппарата так, чтобы не было внешнего давления на штабель; сварки по крайней мере двух полос и отвода сварочного аппарата.

ЗАГОТОВКА И КОНТЕЙНЕР ДЛЯ СКОРОПОРТЯЩИХСЯ ПРОДУКТОВ И СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ

В изобретении предлагается заготовка для контейнера, предназначенного для хранения в нем продуктов, которая содержит по меньшей мере один слой, изготовленный из смеси (13, 23) пластмассы (11) с введенными в нее добавками (12, 22), отличающаяся тем, что указанные добавки состоят из материала, который имеет более высокую температуру стеклования, чем указанная пластмасса (11), за счет чего указанная смесь (13, 23) получает улучшенные термические свойства по сравнению с аналогичными свойствами пластмассы (11, 21). В изобретении предлагается также способ изготовления контейнера, предназначенного для хранения в нем продуктов, в частности молочных продуктов, полученного за счет литьевого формования заготовки (10, 20), с последующим выдуванием из нее контейнера, изготовленного из смеси (13) пластмассы (11) с введенными в нее добавками (12), отличающийся тем, что указанные добавки (12) содержат материал, который имеет более высокую температуру Tg стеклования, чем указанная пластмасса (11), что придает ...

ИЗДЕЛИЕ, ВКЛЮЧАЮЩЕЕ ПОДЛОЖКУ С НАНЕСЕННЫМ ЭКСТРУЗИОННЫМ СПОСОБОМ ПОКРЫТИЕМ, СПОСОБ ПОЛУЧЕНИЯ ИЗДЕЛИЯ И ПРИМЕНЕНИЕ ИЗДЕЛИЯ

Изделие, включающее подложку, на которую нанесен в виде покрытия экструзионным способом пропиленовый полимер, который имеет индекс деформационного упрочнения (SHI@1c-1) по меньшей мере 0,30, измеренный по скорости деформации dε/dt, равной 1,00 с-1, при температуре 180°С, где индекс деформационного упрочнения (SHI) определен как наклон логарифма с основанием 10 функции роста растягивающего напряжения (lq(ηE+)) как функции логарифма с основанием 10 деформации Генки (lg(ε)), в диапазоне деформаций Генки между 1 и 3, и где указанный пропиленовый полимер имеет содержание растворимых в ксилоле веществ (XS) менее 2,0 мас.% и пропиленовый полимер является пропиленовым гомополимером, и где указанный гомополимер имеет термостойкость, измеренную согласно Vicat В (ISO 306 (50 N), по меньшей мере 90°С или пропиленовый полимер является пропиленовым сополимером с содержанием сомономера, не превышающим 10 мол.%, и где указанный сополимер имеет термостойкость, измеренную согласно Vicat В (ISO 306 (50 N) ...

BASE LAYER WITH THE SUBSTITUTED EXTRUSION MANNER BY THE COATING

ЗАГОТОВКА И КОНТЕЙНЕР ДЛЯ ЧУВСТВИТЕЛЬНЫХ К ОБЛУЧЕНИЮ ПРОДУКТОВ И СПОСОБ ИХ ИЗГОТОВЛЕНИЯ

В изобретении предлагается заготовка (10, 20), которую используют как полуобработанное изделие для изготовления контейнеров, предназначенных для хранения продуктов, чувствительных к облучению, в частности к свету, таких как пищевые и молочные продукты, причем заготовка содержит по меньшей мере один базовый слой (1), изготовленный из первичного базового пластика, с заданным количеством введенных в него добавок (5). Заготовка (10, 20) характеризуется тем, что она является непрозрачной фактически на всем ее протяжении, причем в нее введен относительно низкий процент пластмассовых добавок (5), чтобы создать указанный непрозрачный внешний вид (22), так чтобы защищать внутреннее пространство (9) от внешнего излучения (ν1, ν2), в частности от электромагнитного излучения, а более конкретно от света при нормальных условиях давления.

ПОЛИМЕРНЫЙ МАТЕРИАЛ, ЯЧЕИСТАЯ (СОТОВАЯ) СИСТЕМА ОГРАНИЧЕНИЯ, ГЕОМЕМБРАНА, ГЕОТЕКСТИЛЬ, ГЕОСЕТКА ИЗ НЕГО

Многофазный полимерный материал содержит первую твердую непрерывную фазу и вторую эластичную фазу, диспергированную в первой фазе. Многофазный полимерный материал может быть сформирован в полимерные ленты и может использоваться для создания геотехнических изделий, в том числе ячеистой удерживающей структуры, которая подходит для использования в холодных зонах.

СПОСІБ РЕГЕНЕРАЦІЇ КОМПОЗИЦІЙНИХ МАТЕРІАЛІВ

Cпосіб регенерації композиційного матеріалу, що містить волокнистий матеріал та неволокнистий матеріал, включає наступні стадії: охолодження композиційного матеріалу до температури від +10° до -40°С, розмелу охолодженого композиційного матеріалу для відділення волокнистого матеріалу від неволокнистого та їх розділення.

ЗАГОТОВКА И КОНТЕЙНЕР ДЛЯ ЧУВСТВИТЕЛЬНЫХ К ОБЛУЧЕНИЮ ПРОДУКТОВ И СПОСОБ ИХ ИЗГОТОВЛЕНИЯ

В изобретении предлагается заготовка (10, 20), которую используют как полуобработанное изделие для изготовления контейнеров, предназначенных для хранения продуктов, чувствительных к облучению, в частности, к свету, таких как пищевые и молочные продукты, причем заготовка содержит по меньшей мере один базовый слой (1), изготовленный из первичного базового пластика, с заданным количеством введенных в него добавок (5). Заготовка (10, 20) характеризуется тем, что она является непрозрачной фактически на всем ее протяжении, причем в нее введен относительно низкий процент пластмассовых добавок (5), чтобы создать указанный непрозрачный внешний вид (22), так чтобы защищать внутреннее пространство (9) от внешнего излучения (v1, v2), в частности, от электромагнитного излучения, а более конкретно, от света, при нормальных условиях давления.

ГЕОМЕМБРАНЫ

В изобретении предложены геомембраны, имеющие хорошие технологические характеристики, высокое сопротивление растрескиванию при напряжениях, хорошие механические свойства при растяжении и высокую ударную вязкость, изготовленные из бимодального полиэтилена средней плотности.

PRESSURE PIPE AND METHOD OF ITS MANUFACTURE

Tungsten oxides used to increase the heat-input amount of near infrared radiation

TUBE SKIRT DECORATED WITH A WELD SIDE BEAUTY

LABEL FILM FOR DEEP DRAWING METHODS

METHOD FOR PRODUCTION OF STRETCHED FILM, AND STRETCHED FILM

Disclosed is a method for producing a stretched film, which comprises the steps of: melt-coextruding a thermoplastic resin (A) and a thermoplastic resin (B) to produce a composite film (1) which comprises a main film (1a) comprising the thermoplastic resin (A) and both-end films (2) comprising the thermoplastic resin (B) and arranged in parallel at the opposite widthwise end portions of the main film (1a); stretching the composite film; and cutting and removing both of the widthwise end portions of the stretched composite film, wherein the value of the film stretch stress of each of the both-end films (2) is larger than that of the main film (1a) as measured at the same draw ratio. The method enables to minimize the increase in thicknesses at the both ends of a film in a film stretching process, and therefore enables to decrease the width of a portion to be cut and removed at the both ends of an expensive resin film for use in the production of a film. © KIPO & WIPO 2009 ...

método para produção de uma trama de pelìcula

MICRO-POROUS MULTI-LAYER MEMBRANE FILM BASED ON POLYPROPYLENE FOR BATTERIES WITH A CUT-OFF FUNCTION

The invention relates to a biaxially orientated microporous film consisting of at least three co-extruded layers, comprising one internal cut-off layer and two external layers. All three layers contain a mixture of propylene homopolymer and propylene block copolymer and a ß-nucleating agent. The propylene block copolymer I of the external layers has a melting point of more than 140 °C and the propylene block copolymer Il of the inner layer has a melting range that starts at a temperature in the region of between 50 - 120 °C and the melting point of the propylene block copolymers I is higher than the melting point of the propylene block copolymers II.

DIE,SYSTEM, AND METHOD FOR COEXTRUDING A PLURALITY OF FLUID LAYERS

A die for coextruding a plurality of fluid layers generally includes a primary forming stem, one or more distribution plates, and a microlayer assembly. The microlayer assembly includes a microlayer forming stem and a plurality of microlayer distribution plates.

IMPROVEMENT OF A METHOD OF MANUFACTURING LAMINATED FLEXIBLE TUBES

Method of manufacturing flexible tube skirts including the following steps: a) providing a multi-layer plastic film; b) cutting a strip out of said multi-layer plastic film; c) producing a cylindrical sleeve by rolling-welding said strip; d) cutting said sleeve to the desired length in order to obtain said tube skirts; characterized in that the strip is cut out of a multi-layer plastic film which has a structure that is symmetrical in relation to its mid-plane, with symmetrical layers having the same thickness and that is made up of the same plastic material, having the same chemical composition and the same molar mass.

POLYOLEFIN BOTTLES AND METHOD FOR MAKING SAME

L'invention concerne des flacons utilisés comme récipients pharmaceutiques, et fabriqués à partir de compositions de moulage utilisant une polyoléfine d'une densité d'au moins environ 0,89 g/cm3¿, ladite polyoléfine étant formée à partir d'un catalyseur comprenant un métallocène, et possédant une brillance spéculaire d'au moins environ 25. L'invention concerne également un procédé permettant de fabriquer un flacon moulé par soufflage. Ce procédé consiste à fournir une composition de moulage comprenant une polyoléfine à un moule de soufflage qui définit une chambre de moulage par soufflage, ladite polyoléfine possédant une densité d'au moins environ 0,89 g/cm3¿; et à mouler la composition de moulage par soufflage dans la chambre de moulage, tout en laissant échapper l'air et les gaz vers l'extérieur par l'intermédiaire de la chambre de moulage afin de former un flacon, la chambre de moulage renfermant un métal pourvu de plusieurs pores, et l'air et les gaz s'échappant vers l'extérieur de ...

Process for Producing Unstretched Film, Process for Producing Resin-Coated Metal Sheet, and Apparatus for Producing Unstretched Film

A process by which many kinds of unstretched films comprising a thermoplastic resin are produced each in a small amount and high yield. A thermoplastic resin (A) to be formed into an unstretched film and another thermoplastic resin (B) are separately melted by heating. The thermoplastic resin (B) is introduced to each edge part of a T-die ( 2 ) for extrusion. The two resins are ejected and extruded on a casting roll so that the thermoplastic rosin (B) is disposed on the side of each edge of the thermally melted thermoplastic resin (A). Thus, an unstretched film ( 20 ) is formed which comprises the thermoplastic resin (A) and the thermoplastic resin (B) disposed on the side of each edge of the resin (A). Thereafter, the parts constituted of the thermoplastic resin (B) are removed y cutting to form a target unstretched film ( 20 ) consisting only of the thermoplastic resin (A).

Conformable and die-cuttable machine direction oriented labelstocks and labels, and process for preparing

Die-cuttable and printable adhesive containing labelstocks for use in preparing die cut adhesive labels, and methods of preparing the labelstocks and die cut labels are described. The labelstocks comprise extruded machine direction oriented monolayer or multilayer films and an adhesive layer. The monolayer films comprise a mixture of about 25% to 80% by weight of a propylene polymer or copolymer, and from about 20% to about 75% by weight of a polyethylene. The films are stretch oriented in the machine direction at a temperature at about or above the melting temperature of the polyethylenes.

Preparation of polyethylene films

A method for making high modulus and high density polyethylene films is disclosed. The method comprises orienting in machine direction (MD) a polyethylene blown film to a draw-down ratio greater than 10:1 to produce an MD oriented film having a 1% secant MD modulus of 1,000,000 psi or greater.

Polymeric pipe and method of making a polymeric pipe

A method for making a polyethylene pipe, the method comprising preparing a polymer by adding greater than 0 and less than about 1000 ppm peroxide to a polyethylene resin and forming the polymer into a pipe. Polyethylene comprising greater than 0 and less than about 1000 ppm peroxide and having a tensile modulus of about equal to or greater than about 90% of the tensile modulus of an otherwise same polymer without peroxide. A uniaxially oriented polyethylene pipe comprising greater than 0 and less than about 1000 ppm peroxide.

Method for heating and/or cross-linking of polymers and apparatus therefor

PCT No. PCT/SE96/01169 Sec. 371 Date Mar. 20, 1998 Sec. 102(e) Date Mar. 20, 1998 PCT Filed Sep. 20, 1996 PCT Pub. No. WO97/10936 PCT Pub. Date Mar. 27, 1997The invention relates to a process for heating polymer material, including irradiation of said polymer material with infrared radiation. In accordance with the process according to the invention the infrared radiation has wave lengths which substantially are not equal to the absorption peaks of the polymer material in respect of infrared radiation.

Structures of polymers made from single site catalysts

Copolymers of ethylene and alpha olefins that have been formed by the polymerization reaction in the presence of a single site catalyst, such as a metallocene, are used to form collapsible dispensing containers and/or components thereof. Blends of the copolymers with propylene polymers are disclosed and used to form a body wall layer or a collapsible dispensing container head having good bond strength with a body wall layer formed of an ethylene polymer. Methods for improving the adhesion between collapsible dispensing container components, such as between body wall layer formed of an ethylene polymer and another body wall layer formed of a propylene polymer, or between a body wall layer formed of an ethylene polymer and a collapsible dispensing container head formed of a propylene polymer, are also disclosed.

Geotechnical articles

A multiphase polymeric material comprises a first rigid continuous phase and a second elastic phase dispersed in the first phase. The multiphase polymeric material may be formed into polymeric strips and used to make a cellular confinement system which is suitable for use in cold areas.

METHOD FOR JOINING MULTI-LAYERED PIPE

A method for joining a multi-layered pipe to a coupling, the multi-layered pipe including at least an outer and an inner layer of thermoplastic material and the coupling including a thermoplastic material. The method includes providing a coupling including a recess for receiving an end of a multi-layered pipe, the recess being configured, in use, to permit the coupling to contact the inner and outermost layers of a multi-layered pipe received in the recess. An end of the multi-layered pipe is fit into the recess of the coupling. Heat is introduced to both the coupling sufficient to cause local melting at the interface between the coupling and either the inner layer alone or both the inner and outer layers of the multi-layered pipe.

Polyethylene for Rotomoulding

A novel polyethylene is devised which polyethylene is particularly advantageous for manufacturing rotomoulded articles.

Apparatus and Method for Making Inflated Articles

A sealing device generally includes a rotatable support cylinder having an outer, circumferential surface and a heating element disposed about such surface and secured thereto such that the heating element rotates therewith. The heating element is coiled about the outer surface of the cylinder in the form of an overlapping helical pattern. Juxtaposed film plies may be sealed together by bringing the sealing device into rotational contact with the juxtaposed film plies and heating the heating element to a temperature sufficient to cause the film plies to seal together.

PEELABLE OVERPOUCH FILMS

PREPARATION OF MULTILAYER POLYETHYLENE THIN FILMS

EXTRUSION METHOD AND APPARATUS FOR PRODUCING A CABLE

An extrusion method and apparatus (11) for producing a cable (1, 101) including at least one core (7) comprising at least one transmissive element (2, 40), and at least one pair of coating layers (8, 9) arranged at a radially outer position with the respect of the core (7) are described. The method of the invention includes the simultaneous steps of depositing by co-extrusion at least one coating layer (8) of polymeric material and one coating layer (9) of expanded polymeric material and of maintaining a residual pressure not greater than the external pressure in a substantially annular interspace (21) defined between the coating layers. With respect to the methods of the prior art, the present invention allows to avoid the formation of bubbles at the interface between said at least one coating layer (8) of polymeric material and the coating layer (9) of expanded polymeric material, attaining an optimal adhesion between said layers (8, 9).

USE OF POLYPROPYLENE FILMS FOR IN-MOLD LABELING

Heat shrinkable wraps

Method and apparatus for moulding plastics articles from particulate plastics material

ОТДЕЛИТЕЛЬ

Изобретение относится к отделителю для отсоединения отдельных изделий типа резервуаров от соединяющей их рамы. Последняя, состоящая из синтетического материала, в частности из полипропилена, с по меньшей мере одним вырубным устройством (36), которое по меньшей мерс частично отделяет каждое из соответствующих изделий-резервуаров от выбрасываемой рамки. В составе вырубного устройства (36) имеется свободнопадающее тело (52), которое отделяет рамку, идущую в отходы, от соответствующего изделия-резервуара, совершая свободное падение из исходного положения. При этом отделение производится с очень высокой скоростью (свободное падение), и удается обойтись без дополнительных механических компонентов, служащих для силового воздействия на высекающий ударник при получении линии отделения. Технический результат, достигаемый при использовании отделителя по изобретению, заключается в том, чтобы обеспечить качественное отделение изделий-резервуаров из различных материалов от рамки-соединителя и обеспечить ...

СПОСОБ ПОЛУЧЕНИЯ МИКРОПОРИСТЫХ ПОЛИОЛЕФИНОВЫХ МЕМБРАН И МИКРОПОРИСТЫЕ МЕМБРАНЫ

Настоящее изобретение относится к микропористым полиэтиленовым мембранам, применяемым для разделителей в аккумуляторных батареях и в различных фильтрах, и к способам получения указанных мембран. Способ получения мембран включает следующие стадии: перемешивание в расплаве полиэтилена и мембранообразующего растворителя, экструдирование полученного расплава и охлаждение экструдата с образованием гелевой формы, двуосное растяжение при температуре от температуры кристаллизации дисперсии полиэтилена до температуры плавления полиэтилена +10°С, удаление растворителя, повторное растяжение мембраны в поперечном направлении при температуре от 100 до 120°С. Технический результат - получение микропористых полиолефиновых мембран, имеющих отличную прочность на сжатие. 2 н. и 2 з.п. ф-лы, 1 табл.

ГИБКАЯ, ИМЕЮЩАЯ МНОЖЕСТВО ОТДЕЛЕНИЙ, ЕМКОСТЬ ДЛЯ ЛЕКАРСТВЕННОГО СРЕДСТВА (ВАРИАНТЫ) И СПОСОБ ЕЕ ИЗГОТОВЛЕНИЯ И ИСПОЛЬЗОВАНИЯ

FIELD: medical engineering. SUBSTANCE: device has a set of divisions separated with detachable seals in which diluting agents and medicaments are stored. The reservoir is manufactured from thermoplastic materials possessing high protection barrier properties against oxygen and moisture. The seals are ruptured in manipulating with the reservoir to move the contest for making injections to a patient via standard intravenous infusion means. The seals are designed in a manner providing non-linear resistance to hydraulic pressure causing seal detachment all along its length. The reservoir also has fixing ear and holding groove for fastening sack in folded state. EFFECT: long-term storage of medicaments without decay and mixing them under sterile conditions. 131 cl, 21 dwg эЭз9чэ6бгс пы сэ (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ ^”2 196 536. ТМ А 61 В 19/00, А 61 М 37/00 13) С2 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 98122647/14, 11.04.1997 (24) Дата начала действия патента: 11.04.1997 (30) Приоритет: 13.05.1996 Ш$ 08/647,583 (43) Дата публикации заявки: 21.09.2000 (46) Дата публикации: 20.01.2003 (56) Ссылки: 4$ 5176634 А, 05.01.1993. 4$ 4402402 А, 06.09.1983. Ц$ 4010786 А, 08.09.1972. ($ 35456171 А, 08.12.1970. ЗЧ 862954 А, 15.09.1981. (85) Дата перевода заявки РСТ на национальную фазу: 15.12.1998 (86) Заявка РСТ: 1$ 97/06043 (11.04.1997) (87) Публикация РСТ: М/О 97/42897 (20.11.1997) (98) Адрес для переписки: 129010, Москва, ул. Б.Спасская, 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры", пат.пов. Ю.Ю. Кузнецову (71) Заявитель: Б. БРАУН МЕДИКАЛ, ИНК. (15) (72) Изобретатель: БАРНИ Вард В. (13), ГАРИБЬЯН Ноэль (1$), ХАРВИ Дуглас Г. (0$), МАКЛОНИС Марк Р. (4$), ПИРА Кристофер Д. (ЦЗ), ПУЛ Скотт Л. (4$), САККА Джузеппе (1$), САНДБЕРГ Шерилин Дж. (0$), САКАГУЧИ Томас Р. (4$), СМИТ Стивен Л. (43), ВАЛЬТЕР Уилльям В. (4$), ВУ Николас Чунг-Хью (4$), ЙОРК Вальтер А. (1$), ЯНГ Х. Теодор (Ц$) (73) Патентообладатель: ...

ОТДЕЛИТЕЛЬ

... 1. Отделитель для отсоединения отдельных изделий-резервуаров (12) от рамки-соединителя (10), состоящей из синтетического материала, в частности из полипропилена, с, по меньшей мере, одним вырубочным устройством (36), которое, по меньшей мере, частично отделяет каждое из соответствующих изделий-резервуаров (12) от выбрасываемой рамки (14), отличающийся тем, что вырубочное устройство (36) выполнено с возможностью перемещения вдоль оси (44) вырубания из исходного положения в положение вырубания и обратно посредством шариковой винтовой передачи (46), приводимой в движение при помощи приводного узла, в частности, в форме электродвигателя (48). ! 2. Отделитель по п.1, отличающийся тем, что содержит систему (72) амортизации, позволяющую избегать перегрузки шариковой винтовой передачи (46) в процессе вырубания. ! 3. Отделитель по п.2, отличающийся тем, что система (72) амортизации имеет, по меньшей мере, один накопитель энергии, предпочтительно в форме нажимной пружины (74), который разъединяет ...

Container and tamper evident closure with spout

A container (fig 1, 12) in combination with a closure, a container (12) in combination with a foil-less closure and a method of bonding a foil-less closure to a container (12), the container (12) and closure having cooperating profiles to provide re-sealable access to the contents of the container (12). The container (12) comprises an opening and at least part of the closure being permanently adhered to the container (12) by means of a sealing medium 130 interposed between the container (12) and said closure part, in a space defined by the cooperating profiles of the container (12) and closure, the sealing medium 130 does not communicate with the opening of the container (12). The container (12) may be provided with a radially extending flange surrounding said opening, and the closure may have a radially extending wall 60. The closure may be provided with a plug 86, which engages against a rim 14 of the opening and the plug 86 may be provided with a bevelled, radius or chamfer surface 88 ...

Joining polyolefinic members by fusion

First and second members (e.g. pipes, fittings) of cross-linked polyolefinic material such as polyethylene having a melt flow index (MFI) of zero are joined using a third member of polyolefinic material such as polyethylene having a higher MFI e.g. 0.3. The first member 10 and the third member gripped by clamps 18, 20 of a butt fusion machine are pressed against opposite faces of a heater plate which is then withdrawn and the members are pressed together by the clamps. Only the third member is upset to form beads 24, 26. Part of the third member is removed leaving a stub part 16. The second member is joined to the stub's face 36 using the heater plate. The part 16 is upset leaving a thin wafer 48. The two interfaces 30, 50 limit the growth of cracks in the wafer to prevent their propagation through the pipe thickness under hoop stress. The beads are preferably removed at each stage.

PACKING FROM BIAXIAL OF ORIENTATIONS POLYOLEFIN FOIL

LABEL FOIL FOR IN-MOULD-PROCEDURES

COMPOSITION

LABEL FOIL FOR DEEP-DRAWING PROCEDURES

HEAT SHRINKAGE-CASH BAGS WITH BARRIER AND ANTI-BLOCK ADDITIVES

SEPARATING EQUIPMENT

PROCEDURE FOR THE PRODUCTION OF A TUBE WITH A MULTILEVEL TUBE HEAD AND TUBE FROM AN AT LEAST ONE PLASTIC FILM EXHIBITING TUBING BODY AND A MULTILEVEL TUBE HEAD.

PROCEDURE FOR THE PRODUCTION OF A FOIL COURSE

PROCEDURE FOR MANUFACTURING HOMOGENEOUS MATERIALS WITH AN EXTRUSION, AND EXTRUSION

Die,system, and method for coextruding a plurality of fluid layers

Separating device

The invention relates to a separating device for separating individual container products from a frame assembly made of a plastic material, particularly polypropylene, having at least one stamping device (36) that at least partially separates the respective container product from a frame waste. By the stamping device (36) comprising a free fall body (52), separating the respective frame waste from the associated container product from an initial position during free fall, the separation can be carried out with very high speed (free fall) and additional mechanical components for applying a constraint force on the stamping body during the creating of the separating line can be omitted.

Fiber optic cables with extruded access features and methods of making fiber optic cables

Cables are constructed with embedded discontinuities in the cable jacket that allow the jacket to be torn to provide access to the cable core. The discontinuities can be longitudinally extending strips of polymer material coextruded in the cable jacket.

POLYETHYLENE FILMS HAVING HIGH RESISTANCE TO DEFORMATION OR ELONGATION

METHOD FOR JOINING MULTI-LAYERED PIPE

LOW DENSITY POLYETHYLENE FILM

METHOD FOR PRODUCING A ROTATIONALLY-MOLDED PLASTIC MATERIAL AND REINFORCING FIBERS THEREFOR

LABEL FILM FOR DEEP-DRAWING METHODS

... ²²The invention relates to the use of a biaxially oriented film having a ²microporous ²layer containing on propylene polymer and at least one $g(b)-nucleating agent ²and ²whose microporosity is produced by transforming $g(b)-crystalline ²polypropylene ²when the film is drawn, in the labelling of containers during a drawing ²process.² ...

OXYGEN TAILORING OF POLYETHYLENE RESINS

A process for extruding a bimodal polyethylene resin wherein polyethylene homopolymer or copolymer having a bimodal molecular weight distribution is conveyed through an extruder and contacted with oxygen. The resin is processed in an extruder having a feed zone (32) in which the resin is not melted, a mixing zone (34) in which at least a portion of the resin is melted, and a melt zone (36) in which the resin is in a molten state. Each extrusion zone is partially filled with resin an is contacted with a gas mixture containing oxygen in 8 to 40 % by volume in the melt zone (36). The resulting oxygen-tailorer resin can be used to make polyethylene films having improved bubble stability. The resin can be further pelletized.

Polyethylene for Rotomoulding

A novel polyethylene is devised which polyethylene is particularly advantageous for manufacturing rotomoulded articles.

Apparatus For Inflating And Sealing Packing Cushions Employing Film Recognition Controller

An apparatus for inflating and sealing packing cushions utilizes a controller adapted for acquiring information from preconfigured film material and automatically setting one or more operation parameters suitable for inflating and sealing the film. The controller can avoid or limit the need for user input, thus simplifying use of the apparatus.

Fiber optic cables with access features and methods of making fiber optic cables

Cables are constructed with extruded discontinuities in the cable jacket that allow the jacket to be torn to provide access to the cable core. The discontinuities can be longitudinally extending strips of material in the cable jacket.

Separating system for containers

A separating system for separating individual container products from a frame assembly of plastic material, particularly polypropylene, has at least one stamping device ( 36 ) that at least partially separates the respective container product from a frame waste. By the stamping device ( 36 ) including a free fall body ( 52 ) separating the respective frame waste from the associated container product from an initial position during free fall, the separation can be carried out with very high speed (free fall) and additional mechanical components for applying a constraint force on the stamping body during the creating of the separating line can be omitted.

Method of Forming a Shaped Article

A method of forming shaped articles by welding.

Heterogeneous foam composition and method

A process comprises placing a first foamable material inside of a first region of a mold space, and a second foamable material inside of a second region of the mold space, the first foamable material and the second foamable material comprising a physical, chemical or quantitative difference or any combination thereof. Both the first and the second foamable materials are concurrently foamed inside of the mold space to produce a heterogeneous foam comprising a first portion that differs from the second portion.

Process for the production of hollow plastic articles by rotational molding polymeric compounds in a rotomold

The present invention relates to a process for the production of hollow plastic articles in a rotational molding process as well as to hollow plastic articles made by such a process, in particular to a process for the production of hollow plastic articles which exhibit a colored surface exhibiting striking pearlescent or metallic effects.

Apparatus and Method for Making Inflated Articles

A sealing device generally includes a rotatable support cylinder having an outer, circumferential surface and a heating element disposed about such surface and secured thereto such that the heating element rotates therewith. The heating element is coiled about the outer surface of the cylinder in the form of an overlapping helical pattern. Juxtaposed film plies may be sealed together by bringing the sealing device into rotational contact with the juxtaposed film plies and heating the heating element to a temperature sufficient to cause the film plies to seal together. 1. A sealing device , comprising:a rotatable support cylinder having an outer, circumferential surface; anda heating element disposed about at least a portion of said outer surface and secured thereto such that said heating element rotates therewith, said heating element being coiled more than once about said outer surface in the form of an overlapping helical pattern,whereby, juxtaposed film plies may be sealed together by bringing said device into rotational contact with the juxtaposed film plies and heating said heating element to a temperature sufficient to cause the film plies to seal together.2. The device of claim 1 , further including a backing roller claim 1 , wherein said rotatable support cylinder and said backing roller are structured and arranged to rotate against one another to create an area of tangential contact therebetween claim 1 , which exerts a rotational compressive force on the film plies.3. The device of claim 2 , further including a drive mechanism to power the rotation of at least one of said support cylinder and said backing roller.4. The device of claim 1 , wherein:the film plies are bonded together with a series of transverse seals; andsaid sealing device produces a discontinuous series of longitudinal seals that intersect said transverse seals.5. The sealing device of claim 1 , wherein the support cylinder includes slots arranged to provide passageways for end portions of ...

FIBER OPTIC CABLES WITH EXTRUDED ACCESS FEATURES AND METHODS OF MAKING FIBER OPTIC CABLES

Cables are constructed with embedded discontinuities in the cable jacket that allow the jacket to be torn to provide access to the cable core. The discontinuities can be longitudinally extending strips of polymer material coextruded in the cable jacket. 1. A cable , comprising:a core comprising at least one optical fiber; and a primary portion of a first material, the first material having a first material cohesive strength; and', 'at least one discontinuity of a second material wholly embedded in the primary portion, the discontinuity extending along a length of the cable, the second material having a second material cohesive strength,', 'wherein a first ratio of the second material cohesive strength to an adhesion strength between the first material and the second material is in the range of 1:20 to 20:1., 'a jacket surrounding the core, the jacket comprising2. The cable of claim 1 , wherein a second ratio of the first material cohesive strength to the adhesion strength between the first material and the second material is in the range of 20:1 to 400:1.3. The cable of claim 1 , wherein the second ratio of the first material cohesive strength to the adhesion strength between the first material and the second material is in the range of 1:1 to 20:1 such that the second ratio follows a linear relationship with the first ratio.4. The cable of claim 1 , wherein the ratio of the height of the discontinuity and the width of the discontinuity is in the range of 1:4 to 1:100 claim 1 , thereby allowing for a stress concentration to develop at the root of the discontinuity.5. The cable of claim 1 , wherein the first ratio is 4:1.6. The cable of claim 3 , wherein the first material is comprised of at least eighty percent by weight of a first polymer claim 3 , and wherein the second material is comprised of at least seventy percent by weight of a second polymer and at least 0.5 percent by weight of the first polymer.7. The cable of claim 1 , wherein the at least one ...

FIBER OPTIC CABLES WITH EXTRUDED ACCESS FEATURES AND METHODS OF MAKING FIBER OPTIC CABLES

Cables are constructed with embedded discontinuities in the cable jacket that allow the jacket to be torn to provide access to the cable core. The discontinuities can be longitudinally extending strips of polymer material coextruded in the cable jacket. 1. A method of manufacturing a jacket for an optical fiber cable , wherein the jacket comprises a primary portion and at least one discontinuity , the method comprising:co-extruding a first material to form the primary portion, the first material having a first material cohesive strength; andco-extruding a second material to form the at least one discontinuity, wherein the at least one discontinuity is wholly embedded in the primary portion and extends along a length of the optical fiber cable, the second material having a second material cohesive strength, andcooling the primary portion and the at least one discontinuity to form a bond, wherein a first ratio of the second material cohesive strength to an adhesion strength between the first material and the second material is in the range of 1:20 to 20:1.2. The method of claim 1 , wherein a second ratio of the first material cohesive strength to the adhesion strength between the first material and the second material is in the range of 20:1 to 400:1.3. The method of claim 1 , wherein the second ratio of the first material cohesive strength to the adhesion strength between the first material and the second material is in the range of 1:1 to 20:1 such that the second ratio follows a linear relationship with the first ratio.4. The method of claim 1 , wherein a ratio of the height of the at least one discontinuity and a width of the at least one discontinuity is in the range of 1:4 to 1:100 claim 1 , thereby allowing for a stress concentration to develop at the root of the at least one discontinuity.5. The method of claim 1 , wherein the first material is comprised of at least eighty percent by weight of a first polymer claim 1 , and wherein the second material is ...

Method for manufacturing a container body of a tube and container body manufactured by such a method

The invention relates to a method for manufacturing a container body ( 20 ) of a tube, the methods comprising the steps of imprinting a sheet material ( 10 ) on one of its surfaces, bending the imprinted sheet material into the shape of the container body ( 20 ) of the tube with the imprinted surface on the outside, sealing adjacent edges ( 15 ) of the bent imprinted sheet material, and coating the bent imprinted sheet material with a transparent plastics sheathing ( 17 ) by extrusion, wherein the material of the plastics sheathing ( 17 ) and/or the ink used for imprinting are chosen such that the plastics sheathing ( 17 ) does not adhere to the imprint ( 14 ), resulting in one or more ventilation areas ( 18 ) being formed between the imprinted sheet material and the plastics sheathing ( 17 ). The invention furthermore relates to a container body manufactured by such a method.

Ethylene-Based Polymers and Articles Made Therefrom

Provided are ethylene-based polymer compositions, articles made therefrom, and methods of making the same. Ethylene-based polymer compositions include linear low density polyethylene prepared with metallocene catalyst, which may optionally have about 5 mole percent or less of monomer units derived from an alpha-olefin comonomer. Ethylene-based polymer compositions include blends of linear low density polyethylene and one or more very low density polyethylene compositions, one or more low density polyethylene compositions, one or more medium density polyethylene compositions, one or more high density polyethylene compositions, one or more differentiated polyethylene compositions, or other conventional polymers. Articles composed of such ethylene-based polymer compositions are prepared according to a process window, e.g., at a specific extrusion rates, which provides favorable physical properties, including tear resistance and dart drop properties. Films prepared according to these techniques exhibit physical properties equivalent to, or superior than, conventional linear low density polyethylenes prepared with Ziegler-Natta catalyst.

Extrusion compositions having high drawdown and substantially reduced neck-in

An ethylene polymer extrusion composition having high draw down and substantially reduced neck-in, a process for making such a composition and a process of using such a composition to prepare extrusion coatings, extrusion profiles and extrusion cast films are disclosed. The ethylene polymer extrusion composition is made of 75-95 weight percent of at least one ethylene α-olefin interpolymer and 5-25 weight percent of at least one high pressure ethylene polymer characterized as having high melt strength and a broad, bimodal molecular weight distribution. In profiles, coatings or films, the composition can be used as sealant, adhesive or abuse resistance layers.

Geo-membrane applications

The resent invention discloses geo-membrane applications having good processability, high stress crack resistance, good tensile properties and high impact toughness prepared with a bimodal medium density polyethylene resin.

High ESCR glossy plastic containers

Plastic containers comprising two or more layers wherein the external or the internal layer consists essentially of a metallocene-produced medium density polyethylene resin, said plastic container having respectively an external or internal gloss of at least 40 and an environmental stress crack resistance, as measured by the time to rupture, of at least 30 days.

Methods for controlling polyethylene rheology

The rheology of polyethylene resin may be controlled by measuring the specific energy input (SEI) to the extruder and then adjusting a process parameter in response to a change in the SEI and/or by introducing both a free radical initiator and an alkali earth metal stearate into the polymerization. Indeed, the process parameter changed in response to the SEI measurement may be adjusting the proportion of free radical initiator, adjusting the proportion of alkali earth metal stearate, or both. The free radical initiator may be a peroxide, and the alkali earth metal stearate may be calcium stearate.

Method for optimizing film properties of polyethylene blown film

Improving polyethylene film properties may be accomplished by measuring the specific energy input (SEI) to the extruder and then adjusting a process parameter in response to a change in the SEI and/or by introducing both a free radical initiator and an alkali earth metal stearate into the polymerization. Alternatively or in addition thereto, selecting the optimum free radical initiator for a particular polyethylene resin polymerized in the presence of a selected catalyst between two resin properties may be accomplished by examining the ratio of: % ⁢   ⁢ variation ⁢   ⁢ in ⁢   ⁢ a ⁢   ⁢ first ⁢   ⁢ property % ⁢   ⁢ variation ⁢   ⁢ in ⁢   ⁢ a ⁢   ⁢ second ⁢   ⁢ property of polyethylene resins individually made with each free radical initiator under consideration. The free radical initiator may be oxygen, peroxides, peroxyketals, peroxyesters, and/or dialkyl peroxides.

Biaxially oriented mdpe film

A Biaxially Oriented Polyethylene (BOPE) process uses a selected polyethylene having a medium density and a very broad molecular weight distribution. The use of this selected polyethylene facilitates stretching in the BOPE process in comparison to previously used polyethylene resins having a higher density and / or a narrower molecular weight distribution.

Injection blow moulded metallocene polyethylene container

A high gloss hollow packaging prepared by injection blow moulding from a metallocene-produced polyethylene.

Film having an improved sealability and adherence

The invention relates to a multilayer biaxially oriented polyolefin film consisting of a base layer, of at least one first intermediate layer and of a first cover layer that is applied to said intermediate layer. The first intermediate layer is made of a terpolymer consisting of three different monomers (a), (b) and (c), whereby (a) is an olefin. (b) is an unsaturated carboxylic acid or esters thereof, and (c) is an unsaturated carboxylic acid or carboxylic acid ester, which is different from (b), or is a carboxylic acid anhydride. In addition, the first cover layer contains a copolymer, which is comprised of an olefin and of an unsaturated carboxylic acid or esters thereof, and this first cover layer additionally contains an additive.

High gloss polyethylene articles

The present invention includes an end use article (i.e., an article of manufacture) and a process for making the same, wherein the end use article has a relatively high gloss and exhibits excellent processability over a wide range of processing conditions. The end use article can be formed with glossy polyethylene having an “a” parameter less than or equal to about 0.40, and the glossy polyethylene can be a Metallocene polyethylene. The end use article can have a 60° specular gloss of at least about 40%, or from about 40% to about 80%, or from about 60% to about 80%. The end use article may be pigmented or unpigmented.

High gloss polyethylene articles

The present invention includes an end use article (i.e., an article of manufacture) and a process for making the same, wherein the end use article has a relatively high gloss and exhibits excellent processability over a wide range of processing conditions. The end use article can be formed with glossy polyethylene having an “a” parameter less than or equal to about 0.40, and the glossy polyethylene can be a Metallocene polyethylene. The end use article can have a 60° specular gloss of at least about 40%, or from about 40% to about 80%, or from about 60% to about 80%. The end use article may be pigmented or unpigmented.

High gloss polyethylene articles

The present invention includes an end use article (i.e., an article of manufacture) and a process for making the same, wherein the end use article has a relatively high gloss and exhibits excellent processability over a wide range of processing conditions. The end use article can be formed with glossy polyethylene having an “a” parameter less than or equal to about 0.40, and the glossy polyethylene can be a Metallocene polyethylene. The end use article can have a 60° specular gloss of at least about 40%, or from about 40% to about 80%, or from about 60% to about 80%. The end use article may be pigmented or unpigmented.

Die, system, and method for coextruding a plurality of fluid layers

A die for coextruding a plurality of fluid layers generally includes a primary forming stem, one or more distribution plates, and a microlayer assembly. The microlayer assembly includes a microlayer forming stem and a plurality of microlayer distribution plates.

Extrusion coated substrate

Certain embodiments provide an article comprising a substrate, wherein the substrate is extrusion coated with a composition comprising a multi-branched polypropylene having a g′ of less than 1.00. In certain embodiments, the substrate is extrusion coated with a composition comprising a polypropylene material. Either the composition and/or the polypropylene material are represented by the equation: Vicat B [° C.]>−3.96· C x [mol %]+86.85; wherein Vicat B is the heat resistance, according to ISO 306 (50 N), of the composition and/or the polypropylene material; and C x is the comonomer content the composition and/or the polypropylene material.

Extrusion coated substrate

Certain embodiments provide an article comprising a substrate, wherein the substrate is extrusion coated with a composition comprising a multi-branched polypropylene having a g′ of less than 1.00. In certain embodiments, the substrate is extrusion coated with a composition comprising a polypropylene material. Either the composition and/or the polypropylene material are represented by the equation: Vicat B [° C.]>−3.96· C x [mol %]+86.85; wherein Vicat B is the heat resistance, according to ISO 306 (50 N), of the composition and/or the polypropylene material; and C x is the comonomer content the composition and/or the polypropylene material.

Melt fracture reduction

Melt fracture is reduced, without the necessity of polymer processing-aid additives specifically designed to alleviate exit region surface melt fracture phenomenon, by heating at least a portion of the die through which the polymer is extruded. The die exit region is maintained at a temperature above the bulk melt temperature of the polymer extruded through the die exit hole.

Melt fracture reduction

Melt fracture is reduced, without the necessity of polymer processing-aid additives specifically designed to alleviate exit region surface melt fracture phenomenon, by heating at least a portion of the die through which the polymer is extruded. The die exit region is maintained at a temperature above the bulk melt temperature of the polymer extruded through the die exit hole.

Method for making polyolefin/filler films having increased WVTR

Films, made of polyethylenes and filers, and articles made therefrom greater WVTR than previously available films based on conventional Zeigler-Natta based polyethylenes. The polyethylenes are produced in a metallocene-catalyzed production process. The films may be made by a cast film process, and may be made in widely varying filler content, generally polyethylene to filler ratios of 30/70 to 70/30. The metallocene based polyethylenes when combined with filler also permit the extrusion of thinner films leading to lighter weight and softer films. The m-polyethylenes utilized for making such films typically have a Composition Distribution Breadth Index above 50%, a Mw/Mn below 3, and a Mz/Mw below 2. The films may be used advantageously in composite structures with fabrics (either woven or non-woven) to fabricate such articles as house-wrap

Structures of polymers made from single site catalysts

Copolymers of ethylene and alpha olefins that have been formed by the polymerization reaction in the presence of a single site catalyst, such as a metallocene, are used to form collapsible dispensing containers and/or components thereof. Blends of the copolymers with propylene polymers are disclosed and used to form a body wall layer or a collapsible dispensing container head having good bond strength with a body wall layer formed of an ethylene polymer. Methods for improving the adhesion between collapsible dispensing container components, such as between body wall layer formed of an ethylene polymer and another body wall layer formed of a propylene polymer, or between a body wall layer formed of an ethylene polymer and a collapsible dispensing container head formed of a propylene polymer, are also disclosed.

Improved structures of polymers made from single site catalysts

Copolymers of ethylene and alpha olefins that have been formed by a polymerization reaction in the presence of a single site catalyst, such as a metallocene, are used as a film or as a layer in multiple layer films, including molecularly oriented and irradiated heat shrinkable films (12, 14, 16). Novel blends of the copolymers with other polymeric materials are disclosed and used as a film or a layer in a film particularly in molecularly oriented and heat shrinkable films. Bags made from the multiple layer films are especially useful for shrink packaging primal cuts of meat. Processes for the formation of flexible films and packages made therefrom are also disclosed.

Preparation of polyethylene films

An essentially transparent, high density polyethylene film is disclosed. The film has a haze of 20% or less, a gloss of 40% or greater, and density within the range of 0.935 to 0.948 g/cc. The film is made by a high-stalk blown extrusion process and then uniaxially oriented in the machine direction.

Machine-direction oriented multilayer films

A method for making films is disclosed. The method comprises orienting in the machine direction a multilayer film at a draw-down ratio effective to give the film a dart-drop strength that increases with increasing draw-down ratio. The multilayer film comprises at least one layer of a linear low density polyethylene and at least one layer of a high density polyethylene or a medium density polyethylene.

Polyethylene films having high resistance to deformation or elongation

Disclosed is a method for producing polyethylene films which have high resistance to deformation or elongation under loading in tension. The method comprises orienting in the machine direction (MD) a high density polyethylene film at a draw-down ratio effective to give the film an MD tensile strength at yield greater than or equal to 50,000 psi, wherein the HDPE has a density greater than 0.940 g/cm 3 .

Multilayer polyethylene thin films

A multilayer thin film is disclosed. The multilayer thin film has a thickness within the range of about 0.1 mil to about 1 mil and comprises at least one layer of a linear low density polyethylene (LLDPE) and at least one layer of a high density polyethylene (HDPE) or a medium density polyethylene (MDPE). The multilayer thin film has high tear strength and an excellent combination of other properties.

Preparation of multilayer polyethylene thin films

A method for making multilayer thin films is disclosed. The method of comprises orienting a thick multilayer film in the machine direction at a drawdown ratio effective to produce a multilayer thin film. The thick multilayer film has a thickness within the range of 1 mil to 5 mils and comprises at least one layer of a linear low density polyethylene (LLDPE) and at least one layer of a high density polyethylene (HDPE) or a medium density polyethylene (MDPE).

Polyethylene films having high resistance to deformation or elongation

Disclosed is a method for producing polyethylene films which have high resistance to deformation or elongation under loading in tension. The method comprises orienting in the machine direction (MD) a high density polyethylene film at a draw-down ratio effective to give the film an MD tensile strength at yield greater than or equal to 50,000 psi, wherein the HDPE has a density greater than 0.940 g/cm 3 .

Polyethylene films having high resistance to deformation or elgonation

Disclosed is a method for producing polyethylene films which have high resistance to deformation or elongation under loading in tension. The method comprises orienting in the machine direction (MD) a high density polyethylene film at a drawdown ratio effective to give the film an MD tensile strength at yield greater than or equal to 50,000 psi, wherein the HDPE has a density greater than 0.940 g/cm 3 .

Preparation of multilayer polyethylene thin films

A method for making multilayer thin films is disclosed. The method of comprises orienting a thick multilayer film in the machine direction at a drawdown ratio effective to produce a multilayer thin film. The thick multilayer film has a thickness within the range of 1 mil to 5 mils and comprises at least one layer of a linear low density polyethylene (LLDPE) and at least one layer of a high density polyethylene (HDPE) or a medium density polyethylene (MDPE).

High escr glossy plastic containers

Plastic containers comprising two or more layers wherein the external or the internal layer consists essentially of a metallocene-produced medium density polyethylene resin, said plastic container respectively an external or internal gloss of at least 40 and an environmental stress crack resistance, as measured by the time to rupture of at least 30 days.

High ESCR glossy plastic containers

Plastic containers including two or more layers wherein the external or the internal layer formed of of a metallocene-produced medium density polyethylene resin, said plastic container respectively an external or internal gloss of at least 40 and an environmental stress crack resistance, as measured by the time to rupture of at least 30 days.

Extrusion coated substrate

Article comprising a substrate, which is extrusion coated with a composition comprising a multi-branched polypropylene having a g' of less than 1.00.

기계-방향 배향된 다중층 필름

필름의 제조방법을 개시한다. 상기 방법은, 필름에, 연신비가 증가함에 따라 증가하는 다트-드롭 강도를 제공하는 데에 효과적인 연신비에서, 다중층 필름을 기계-방향에서 배향하는 것을 포함한다. 상기 다중층 필름은 선형 저밀도 폴리에틸렌의 하나 이상의 층 및 고밀도 폴리에틸렌 또는 중밀도 폴리에틸렌의 하나 이상의 층을 포함한다. 폴리에틸렌 필름, 기계-방향 배향, 다중층 필름

Composition

Polymer recyclate processes and products

Methods for processing HDPE and/or MDPE recyclates including, but not limited to, polyethylene and polypropylene and compositions therefrom are provided. HDPE and/or MDPE recyclate feedstocks can be visbroken to improve processing characteristics and/or devolatilized to remove waste byproducts to produce processed HDPE recyclate and/or processed MDPE recyclates. Processed HDPE recyclate and/or processed MDPE recyclates are compounded with pre-consumer polyolefins to produce blend compositions having acceptable or even improved processing characteristics. Such pre-consumer polyolefins can also be visbroken to further tailor processing characteristics of such polymer blends. A combination of extruders and/or extruder zones can be used at the same or different locations for visbreaking and/or compounding of both HDPE and/or MDPE recyclate and/or pre-consumer polyolefins.

BIAXIALLY ORIENTED MDPE FILM

A Biaxially Oriented Polyethylene (BOPE) process uses a selected polyethylene having a medium density and a very broad molecular weight distribution. The use of this selected polyethylene facilitates stretching in the BOPE process in comparison to previously used polyethylene resins having a higher density and/or a narrower molecular weight distribution. 1. A biaxially oriented polyethylene film comprising at least 60 weight percent of a medium density polyethylene having:1) a density of from 0.94 to 0.95 grams per cubic centimeter;{'sub': '2', '2) a melt index, I, as measured by ASTM D1238 at 190° C. using a 2.16 kg load of from 0.2 to 5 grams/10 minutes; and'}3) a molecular weight distribution, Mw/Mn, of from 10 to 50.2. The film of wherein said medium density polyethylene is further characterized by having a Mz of from 550 claim 1 ,000 to 1 claim 1 ,500 claim 1 ,000.3. The film of claim 1 , characterized in that it is stretched in the machine direction to a degree of from about 3:1 to about 10:1.4. The film of characterized in that it is stretched in the transverse direction to a degree of from about 3:1 to about 10:1.5. The film of when prepared from a base structure having at least three layers and wherein at least one core layer of said base structure comprises said medium density polyethylene.6. A process to prepare a biaxially oriented polyethylene film comprising: 1) a density of from 0.94 to 0.95 grams per cubic centimeter;', {'sub': '2', '2) a melt index, I, as measured by ASTM D1238 at 190° C. using a 2.16 kg load of from 0.2 to 5 grams/10 minutes; and'}, '3) a molecular weight distribution, Mw/Mn, of from 10 to 50;, 'A) providing a base structure comprising at least 60 weight % of a medium density polyethylene havingB) stretching said base structure to a degree of from about 3:1 to about 10:1 in the machine direction; andC) stretching said base structure to a degree of from about 3:1 to about 10:1 in the transverse direction.7. The process of wherein ...

Oxygen tailoring of polyethylene resins

A process is provided for extruding a bimodal polyethylene resin. The process includes providing a polyethylene homopolymer or copolymer resin having a bimodal molecular weight distribution; conveying the resin through an extruder having a feed zone in which the resin is not melted, a melt-mixing zone in which at least a portion of the resin is melted, and a melt zone in which the resin is in a molten state, each zone being partially filled with the resin; and contacting the molten resin in the melt zone with a gas mixture of 8 to 40% by volume O 2 . The resin can be further pelletized. The oxygen-tailored resin can be used to make polyethylene films having improved bubble stability.

Oxygen tailoring of polyethylene resins

Methods of tailoring polyethylenes are contemplated utilizing 0.5 to 7.95 volume percent oxygen containing gases. The tailoring occurs in a melt-conveying zone of a mixer/extruder, and not in the feed or melting zones of a mixer/extruder. The effect of tailoring is to increase elasticity (G′/G″) of the polyethylenes more than 10 percent over similar polyethylenes that are extruded/mixed in the substantial absence of oxygen of oxygen containing gases.

Preparation of polyethylene films

An essentially transparent, high density polyethylene film is disclosed. The film has a haze of 20% or less, a gloss of 40% or greater, and density within the range of 0.935 to 0.948 g/cc. The film is made by a high-stalk blown extrusion process and then uniaxially oriented in the machine direction.

Copolymers of propylene with hexene-1 and blown films obtained from them

A copolymer of propylene with hexene-1 containing from 5 to 9% by weight of recurring units derived from hexene-1, having a melting temperature from 125° C. to 140° C. and Melt Flow Rate (ASTM D1238, 230° C./2.16 Kg) from 0.1 to 3 g/10 min., is used to produce blown films having valuable mechanical and optical properties.

composition

用于旋转注模的聚乙烯

本发明提供新型的聚乙烯，所述聚乙烯尤其有利于制造旋转注模制品。

Extrusion compositions having high drawdown and substantially reduced neck-in

An ethylene polymer extrusion composition having high draw down and substantially reduced neck-in, a process for making such a composition and a process of using such a composition to prepare extrusion coatings, extrusion profiles and extrusion cast films are disclosed. The ethylene polymer extrusion composition is made of 75-95 weight percent of at least one ethylene α-olefin interpolymer and 5-25 weight percent of at least one high pressure ethylene polymer characterized as having high melt strength and a broad, bimodal molecular weight distribution. In profiles, coatings or films, the composition can be used as sealant, adhesive or abuse resistance layers.

Extrusion compositions having high drawdown and substantially reduced neck-in

An ethylene polymer extrusion composition having high draw down and substantially reduced neck-in, a process for making such a composition and a process of using such a composition to prepare extrusion coatings, extrusion profiles and extrusion cast films are disclosed. The ethylene polymer extrusion composition is made of 75-95 weight percent of at least one ethylene α-olefin interpolymer and 5-25 weight percent of at least one high pressure ethylene polymer characterized as having high melt strength and a broad, bimodal molecular weight distribution. In profiles, coatings or films, the composition can be used as sealant, adhesive or abuse resistance layers.

Methods, compositions and blends for forming articles having improved environmental stress crack resistance

Several processes for the manufacture of thin-walled tubes are described, including: injection moulding an article and annealing the article, injection moulding a blend of a polymer and a high melt flow polymer, injection moulding a blend of a polymer and nanoparticles or nanocomposites. Using nanoparticles to improve ESCR and/or tear resistance of a polymer or blend is also disclosed.

Polyolefin based films suitable for thermoforming

The present invention relates to a film structure comprising an outer layer, a core and an inner layer (or sealant layer). The outer layer comprises a polyolefinic material having a Vicat softening temperature of 85° C. or greater, and a total crystallinity in the range of 25 to 45%. The core comprises a linear low density polyethylene having a density of 0.925 g/cm 3 or less, and a melt index of 4.0 g/10 min or less. The inner layer comprises linear low density polyethylene having a density of from 0.865 to 0.926 g/cm 3 and a melt index of less than 4.0 g/10 minutes. The films of the present invention have less than 25% of polyethylenes having a density of 0.930 g/cm 3 or greater. Further, the films of the present invention can be characterized by the substantial absence of polyamide, polyester, ethylene vinyl acetate, ionomers, polyvinyl chloride, and/or cyclic olefin polymers.

Methods, compositions and blends for forming articles having improved environmental stress crack resistance

Several processes for the manufacture of thin-walled tubes are described, including: injection moulding an article and annealing the article, injection moulding a blend of a polymer and a high melt flow polymer, injection moulding a blend of a polymer and nanoparticles or nanocomposites. Using nanoparticles to improve ESCR and/or tear resistance of a polymer or blend is also disclosed.

Methods, compositions and blends for forming articles having improved environmental stress crack resistance

Several processes for the manufacture of thin-walled tubes are described, including: injection molding an article and annealing the article, injection molding a blend of a polymer and a high melt flow polymer, injection molding a blend of a polymer and nanoparticles or nanocomposites. Using nanoparticles to improve ESCR and/or tear resistance of a polymer or blend is also disclosed.

Methods, compositions and blends for forming articles having improved environmental stress crack resistance

Several processes for the manufacture of thin-walled tubes are described, including: injection molding an article and annealing the article, injection molding a blend of a polymer and a high melt flow polymer, injection molding a blend of a polymer and nanoparticles or nanocomposites. Using nanoparticles to improve ESCR and/or tear resistance of a polymer or blend is also disclosed.

Methods for forming articles having improved environmental stress crack resistance

Several processes for the manufacture of thin-walled tubes are described, including: injection moulding an article and annealing the article, injection moulding a blend of a polymer and a high melt flow polymer, injection moulding a blend of a polymer and nanoparticles or nanocomposites. Using nanoparticles to improve ESCR and/or tear resistance of a polymer or blend is also disclosed.

Methods, compositions and blends for forming articles having improved environmental stress crack resistance

Several processes for the manufacture of thin-walled tubes are described, including: injection moulding an article and annealing the article, injection moulding a blend of a polymer and a high melt flow polymer, injection moulding a blend of a polymer and nanoparticles or nanocomposites. Using nanoparticles to improve ESCR and/or tear resistance of a polymer or blend is also disclosed.

Polyethylene for rotomoulding

A novel polyethylene is devised which polyethylene is particularly advantageous for manufacturing rotomoulded articles

Conformable and die-cuttable machine direction oriented labelstocks and labels, and process for preparing

Matte transfer metallization film, process for its production and its use

Composite pipes and method making same

A reinforced composite article and method for making the same. The article and method employ at least one elongated plastic member as a reinforcement phase. An intermediate form including the elongated member is made and can be processed, for example, to form a composite article with a smooth exposed reinforcement surface.

Geo-Membrane Applications

The resent invention discloses geo-membrane applications having good processability, high stress crack resistance, good tensile properties and high impact toughness prepared with a bimodal medium density polyethylene resin.

Process for the production of matte transfer metallization film

The invention relates to a matte multilayer polypropylene film which includes at least one base layer containing polypropylene and migrating additives or a mixture of migrating additives, and at least one outer layer which includes a mixture or a blend of two components I and II. Component I essentially contains a propylene homopolymer or a copolymer of ethylene and propylene or ethylene and butylene or propylene and butylene or ethylene and another α-olefin having 5 to 10 carbon atoms or propylene and another α-olefin having 5 to 10 carbon atoms or a terpolymer of ethylene and propylene and butylene or ethylene and propylene and another α-olefin having 5 to 10 carbon atoms or a mixture of two or more of said homopolymers, copolymers and terpolymers or a blend of two or more of said homopolymers, copolymers and terpolymers, if desired mixed with one or more of said homopolymers, copolymers and terpolymers. Component II essentially contains an HDPE or a blend of two components A and B. Blend component A is essentially an HDPE. Blend component B is essentially a propylene homopolymer or a copolymer of ethylene and propylene or ethylene and butylene or propylene and butylene or ethylene and another α-olefin having 5 to 10 carbon atoms or propylene and another α-olefin having 5 to 10 carbon atoms or a terpolymer of ethylene and propylene and butylene or ethylene and propylene and another α-olefin having 5 to 10 carbon atoms or a mixture of two or more of said homopolymers, copolymers and terpolymers or a blend of two or more of said homopolymers, copolymers and terpolymers. The film has use in a metallization process.

Structures of polymers made from single site catalysts

Copolymers of ethylene and alpha olefins that have been formed by a polymerization reaction in the presence of a single site catalyst, such as a metallocene, are used as a film or as a layer in multiple layer films, including molecularly oriented and irradiated heat shrinkable films. Novel blends of the copolymers with other polymeric materials are disclosed and used as a film or a layer in a film particularly in molecularly oriented and heat shrinkable films. Bags made from the multiple layer films are especially useful for shrink packaging primal cuts of meat. Processes for the formation of flexible films and packages made therefrom are also disclosed.

Methods, compositions and blends for forming articles with excellent environmental stress crack resistance

Several processes for the manufacture of thin-walled tubes are described, including: injection moulding an article and annealing the article, injection moulding a blend of a polymer and a high melt flow polymer, injection moulding a blend of a polymer and nanoparticles or nanocomposites. Using nanoparticles to improve ESCR and/or tear resistance of a polymer or blend is also disclosed.

Oxygen tailoring of polyethylene resins

A process for extruding a bimodal polyethylene resin wherein polyethylene homopolymer or copolymer having a bimodal molecular weight distribution is conveyed through an extruder and contacted with oxygen. The resin is processed in an extruder having a feed zone (32) in which the resin is not melted, a mixing zone (34) in which at least a portion of the resin is melted, and a melt zone (36) in which the resin is in a molten state. Each extrusion zone is partially filled with resin an is contacted with a gas mixture containing oxygen in 8 to 40 % by volume in the melt zone (36). The resulting oxygen-tailorer resin can be used to make polyethylene films having improved bubble stability. The resin can be further pelletized.

Oxygen Tailoring of Polyethylene Resins

A process is provided for extruding a bimodal polyethylene resin. The process includes providing a polyethylene homopolymer or copolymer resin having a bimodal molecular weight distribution; conveying the resin through an extruder having a feed zone in which the resin is not melted, a melt-mixing zone in which at least a portion of the resin is melted, and a melt zone in which the resin is in a molten state, each zone being partially filled with the resin; and contacting the molten resin in the melt zone with a gas mixture of 8 to 40% by volume O 2 . The resin can be further pelletized. The oxygen-tailored resin can be used to make polyethylene films having improved bubble stability.

聚乙烯树脂的氧气修整

提供一种双峰聚乙烯树脂的挤出方法，其中有双峰分子量分布的聚乙烯均聚物或共聚物被输送通过挤出机并与氧气接触。所述树脂在挤出机中加工，所述挤出机有其中不使所述树脂熔融的进料区(32)、其中使所述树脂的至少一部分熔融的混合区(34)、和其中所述树脂处于熔融状态的熔融区(36)。每个区都部分地充满所述树脂；和使所述熔融树脂在熔融区(36)与8至40%(体积)O 2 的气体混合物接触。所述氧气修整的树脂可用于制备膜泡稳定性改善的聚乙烯薄膜。还可将所述树脂造粒。

Polyethylene for rotomoulding

A novel polyethylene is devised which polyethylene is particularly advantageous for manufacturing rotomoulded articles.

Improved structures of polymers made from single site catalysts

Copolymers of ethylene and alpha olefins that have been formed by a polymerization reaction in the presence of a single site catalyst, such as a metallocene, are used as a film or as a layer in multiple layer films, including molecularly oriented and irradiated heat shrinkable films (12, 14, 16). Novel blends of the copolymers with other polymeric materials are disclosed and used as a film or a layer in a film particularly in molecularly oriented and heat shrinkable films. Bags made from the multiple layer films are especially useful for shrink packaging primal cuts of meat. Processes for the formation of flexible films and packages made therefrom are also disclosed.

Solventless plastic bonding of medical devices and container components through infrared heating

The present invention provides a method for preparing solventless bonds between plastic components. The method includes the step of using infrared exposure to create bonds, and more specifically, the step of exposing a first article and/or a second article to a specific portion of the infrared spectrum. The invention further provides medical devices fabricated using infrared exposure.

High optics machine direction oriented label facestock

Machine direction oriented coextruded multilayer film structures for use as labelstock and die cut adhesive labels are described. The labelstocks comprise extruded machine direction oriented multilayer films and an adhesive layer. The multilayer film structures include skin layers made from a mixture of 70% to about 99.9% by weight of at least one propylene polymer, and from about 0.1% to about 20% by weight of at least one ethylene polymer, or from about 0.1% to about 25% by weight of at least one propylene polymer, and from about 75% to about 99.9% by weight of at least one ethylene polymer. The coextruded multilayer films are stretch oriented in the machine direction at a temperature at about or above the melting temperature of the polyethylenes and optionally include an adhesive layer and release liner.

Structures of polymers made from single site catalysts

Copolymers of ethylene and alpha olefins that have been formed by the polymerization reaction in the presence of a single site catalyst, such as a metallocene, are used to form collapsible dispensing containers and/or components thereof. Blends of the copolymers with propylene polymers are disclosed and used to form a body wall layer or a collapsible dispensing container head having good bond strength with a body wall layer formed of an ethylene polymer. Methods for improving the adhesion between collapsible dispensing container components, such as between body wall layer formed of an ethylene polymer and another body wall layer formed of a propylene polymer, or between a body wall layer formed of an ethylene polymer and a collapsible dispensing container head formed of a propylene polymer, are also disclosed.

High optics machine direction oriented label facestock

Machine direction oriented coextruded multilayer film structures for use as labelstock and die cut adhesive labels are described. The labelstocks comprise extruded machine direction oriented multilayer films and an adhesive layer. The multilayer film structures include skin layers made from a mixture of 70% to about 99.9% by weight of at least one propylene polymer, and from about 0.1% to about 20% by weight of at least one ethylene polymer, or from about 0.1% to about 25% by weight of at least one propylene polymer, and from about 75% to about 99.9% by weight of at least one ethylene polymer. The coextruded multilayer films are stretch oriented in the machine direction at a temperature at about or above the melting temperature of the polyethylenes and optionally include an adhesive layer and release liner.

Welding process and geosynthetic products thereof

A cellular confinement system is formed from an ultrasonic welding method which requires no external pressure during the welding step. A plurality of multi-layer strips can be welded such that the weld area is not thinner than the rest of the strip and has good UV protection. The method comprises: stacking a plurality of strips; providing external pressure; removing the external pressure, positioning the ultrasonic welding apparatus so that it places no external pressure on the stack; welding at least two strips; and removing the welding apparatus.

Use of cross-linked polyolefins material in pressure pipes

Use of at least partly cross-linked polyolefin plastic, which is oriented biaxially, as material for pressure pipes, is described. The pressure pipe is produced by extrusion with subsequent axial and peripheral orientation of the pipe, the pipe being at least partly cross-linked before the biaxial orientation. Preferably, the pipe is cross-linked to about 20-50 % before orientation. By the at least partial cross-linking before orientation, this can be carried out at temperatures above the crystalline melting point of the plastic material.

一种聚乙烯管道防白蚁胶带基材及其制备方法

本发明提供了一种聚乙烯管道防白蚁胶带基材及其制备方法，所述聚乙烯管道防白蚁胶带基材包括的组分及各组分的质量百分比为：超低密度聚乙烯50~75%；马来酸酐改性线性低密度聚乙烯10~20%；中密度聚乙烯5~15%；高密度聚乙烯5~15%；抗氧剂1~2%；色母1~2%；防白蚁剂1~2%。本发明的聚乙烯管道防白蚁胶带基材的耐热稳定性能、耐热老化性能、耐环境应力开裂性能、拉伸性能、抗冲击性能、耐热老化性能和耐磨性得到了极大的增强，同时还具有防白蚁的性能。

Digital printing system for printing colored polyolefin films

A colored polyolefin film is printed by digital printing techniques. The colored polyolefin film is formed by blending a coloring agent, such as a pigment or a dye, with a polyolefin, and forming a film from the blend by an extrusion process. Digital signals are supplied to a printer adapted to respond to such signals to print the colored film. Indicia may be placed on the surface of the colored film by electrostatic printing, thermal transfer printing or ink jet printing, especially with an ultraviolet (UV) curable ink jet ink. The colored polyolefin film may be a multi-layer film having an opaque, cavitated core layer and at least one colored skin or tie layer.

Oxygen tailoring of polyethylene resins

Processing for producing flexible container with fitment using expandable mandrel

The present disclosure provides a process for producing a flexible container. In an embodiment, the process includes (A) providing a flexible container. The flexible container has (i) a body, and (ii) a neck. The process includes (B) positioning a fitment into the neck. The fitment has a top portion and a base. The fitment is composed of a polymeric material. The process includes (C) inserting a mandrel into the fitment. The mandrel includes an expandable collar composed of an elastomeric material. The process includes (D) expanding the collar radially outward to contact an inner surface of the base. The process includes (E) sealing, with a pair of opposing seal bars, the base to the neck.

Method of making film-type linen

FIELD: chemistry. SUBSTANCE: thermoplastic material, having a polyethylene matrix which contains 1-70 pts. wt polypropylene per 100 pts. wt polyethylene matrix, is used to make medical and hygienic films. After heating, said material is passed through a pressing zone between cooled rollers, where the initial film-type linen is heated to molten state of the material of the polyethylene matrix but not up to temperature of molten polypropylene. EFFECT: inproved operational characteristics of film-type linen including for films with thickness equal to less than 20 mcm. 25 cl, 1 dwg, 6 tbl, 2 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 412 216 (13) C2 (51) МПК C08J C08J B29C B29C C08L 5/00 (2006.01) 5/18 (2006.01) 47/88 (2006.01) 71/02 (2006.01) 23/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2007136940/05, 26.04.2006 (24) Дата начала отсчета срока действия патента: 26.04.2006 (72) Автор(ы): БЁРМАНН Людвиг (DE), ШРАЙНЕР Гюнтер (DE) R U (73) Патентообладатель(и): РКВ СЕ (DE) Приоритет(ы): (30) Конвенционный приоритет: 26.04.2005 EP 05009126.3 (43) Дата публикации заявки: 10.06.2009 Бюл. № 16 2 4 1 2 2 1 6 (45) Опубликовано: 20.02.2011 Бюл. № 5 (56) Список документов, цитированных в отчете о поиске: ЕР 0768168 А, 16.04.1997. US 3548048 А, 15.12.1970. ЕР 0452813 А2, 23.10.1991. ЕР 0256885 А2, 24.02.1988. WO 09532089 А1, 30.11.1995. RU 2140855 C1, 10.11.1999. 2 4 1 2 2 1 6 R U (86) Заявка PCT: EP 2006/003891 (26.04.2006) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 26.11.2007 (87) Публикация заявки РСТ: WO 2006/136226 (28.12.2006) Адрес для переписки: 191186, Санкт-Петербург, а/я 230, "АРСПАТЕНТ", пат. пов. В.В.Дощечкиной (54) СПОСОБ ИЗГОТОВЛЕНИЯ ПЛЕНОЧНОГО ПОЛОТНА (57) Реферат: Изобретение относится к технологии получения пленочных полотен, используемых для изготовления медицинских или гигиенических пленок. Для изготовления используют термопластичный ...

Film for making fused label, method of increasing its manufacturability, method of labelling products and labeled product (versions)

FIELD: packaging industry. SUBSTANCE: film for the manufacture of a fused label contains the core layer and the hot-melt layer. The core layer has a first and a second surface, and the hot-melt layer has an inner surface and outer surface. The inner surface of the hot-melt layer is located above the first surface of the core layer. The hot-melt layer contains a very low-density polyethylene, high density polyethylene and alkene copolymer selected from the group containing a copolymer of alkene and vynilcarboxylate, a copolymer of alkene and a methacrylic acid, alkene copolymer and alkyl methacrylate, a copolymer based on the alkali metal salts or zinc of methacrylic acid and an alkene, and the mixture of at least two of the above alkene copolymers. EFFECT: manufacture of film for improvement of methods to label products using fused labels, improving the quality of labeled products and improving the technological properties of the film for fused labels. 20 cl, 1 tbl, 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 461 074 (51) МПК G09F 3/04 B29C 55/02 B32B 27/32 C08L 23/08 B29C 47/06 C09J 7/00 ФЕДЕРАЛЬНАЯ СЛУЖБА B29C 70/78 ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ B29C 44/12 B65D 23/08 C09J 123/08 (12) ОПИСАНИЕ (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) (13) C2 B29C 47/04 (2006.01) ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2007121863/04, 10.11.2005 (24) Дата начала отсчета срока действия патента: 10.11.2005 (72) Автор(ы): БЛЕКУЭЛЛ Кристофер Дж. (US), КОВАЛЬЧУК Джон Э. (US) R U (73) Патентообладатель(и): Эвери Деннисон Копэрейшн (US) Приоритет(ы): (30) Конвенционный приоритет: 10.11.2004 US 60/626,626 (43) Дата публикации заявки: 20.12.2008 Бюл. № 35 2 4 6 1 0 7 4 2 4 6 1 0 7 4 R U (56) Список документов, цитированных в отчете о поиске: WO 2004/018194 A1, 04.03.2004. WO 01/07234 A, 01.02.2001. US 2004/146699 A1, 29.07.2004. US 6150013 A, 21.11.2000. DE 4306103 A1, 01.09.1994. EP 0787581 A, 06.08.1997. EP 0254923 A, 03.02.1988. ...

High escr glossy plastic containers

Film having an improved sealability and adherence

The invention relates to a multilayer biaxially oriented polyolefin film consisting of a base layer, of at least one first intermediate layer and of a first cover layer that is applied to said intermediate layer. The first intermediate layer is made of a terpolymer consisting of three different monomers (a), (b) and (c), whereby (a) is an olefin, (b) is an unsaturated carboxylic acid or esters thereof, and (c) is an unsaturated carboxylic acid or carboxylic acid ester, which is different from (b), or is a carboxylic acid anhydride. In addition, the first cover layer contains a copolymer, which is comprised of an olefin and of an unsaturated carboxylic acid or esters thereof, and this first cover layer additionally contains an additive.

Environmentally friendly artificial turf yarn modified by plasma treatment and artificial turf structure using the same

The present invention relates to artificial turf yarn, which is environmentally friendly by utilizing bio-polyethylene instead of non-regenerated fossil fuel, and is capable of preventing burn caused by frictional heat as well as realizing the effect of reducing the surface temperature and generating static electricity due to an increase in the water content by modifying the surface of artificial turf yarn to be hydrophilic through plasma treatment; and an artificial turf structure utilizing the same.

Oxygen tailoring of polyethylene resins

A process for extruding a bimodal polyethylene resin wherein polyethylene homopolymer or copolymer having a bimodal molecular weight distribution is conveyed through an extruder and contacted with oxygen. The resin is processed in an extruder having a feed zone (32) in which the resin is not melted, a mixing zone (34) in which at least a portion of the resin is melted, and a melt zone (36) in which the resin is in a molten state. Each extrusion zone is partially filled with resin an is contacted with a gas mixture containing oxygen in 8 to 40 % by volume in the melt zone (36). The resulting oxygen-tailorer resin can be used to make polyethylene films having improved bubble stability. The resin can be further pelletized.

Oxygen tailoring of polyethylene resins

A process for extruding a bimodal polyethylene resin wherein polyethylene homopolymer or copolymer having a bimodal molecular weight distribution is conveyed through an extruder and contacted with oxygen. The resin is processed in an extruder having a feed zone (32) in which the resin is not melted, a mixing zone (34) in which at least a portion of the resin is melted, and a melt zone (36) in which the resin is in a molten state. Each extrusion zone is partially filled with resin an is contacted with a gas mixture containing oxygen in 8 to 40 % by volume in the melt zone (36). The resulting oxygen-tailorer resin can be used to make polyethylene films having improved bubble stability. The resin can be further pelletized.

具有切断功能的用于电池的单层聚丙烯膜用薄膜

本发明涉及具有切断功能的双轴取向的单层微孔薄膜，所述微孔薄膜由丙烯均聚物和丙烯嵌段共聚物I和β-成核剂构成。丙烯嵌段共聚物I的熔程在50至120℃范围内的温度下开始。

Micro-porous multi-layer membrane film based on polypropylene for batteries with a cut-off function

The invention relates to a biaxially oriented microporous film composed of at least three coextruded layers encompassing an internal cut-off layer and two external layers, wherein all three layers contain a mixture of propylene homopolymer and propylene block copolymer and β-nucleation agent. The propylene block copolymer I of the external layers has a melting point exceeding 140° C. and the propylene block copolymer II of the internal layer has a melting range starting at a temperature ranging from 50 to 120° C. and the melting point of the propylene block copolymer I is greater than the melting point of the propylene block copolymer II.

Shape-memory laminated polybutylene terephthalate film, production process and use thereof, and process for production of polybutylene terephthalate film

본 발명은, (1) 폴리부틸렌 테레프탈레이트 필름과 다른 필름 또는 필름 적층체를 접착하여 얻어진 적층 필름을, 제1 형상으로 유지시키면서, 상기 폴리부틸렌 테레프탈레이트의 유리 전이 온도 이하의 온도(T 1 )에서 부형 처리하고, (2) 얻어진 부형 적층 필름을, 상기 유리 전이 온도보다 높은 온도(T 2 )에서 제2 형상으로 변형 가공한 다음, (3) 상기 유리 전이 온도 이하의 온도(T 3 )으로 냉각시킴으로써 얻어지는, 우수한 형상 기억성과 내열 치수 안정성을 갖는 폴리부틸렌 테레프탈레이트 적층 필름에 관한 것이다. The present invention provides a temperature (T) below the glass transition temperature of the polybutylene terephthalate while (1) maintaining the laminated film obtained by adhering the polybutylene terephthalate film and another film or film laminate in a first shape. 1 ) the shaping treatment in (2), (2) the resulting laminated laminate film is deformed into a second shape at a temperature (T 2 ) higher than the glass transition temperature, and (3) a temperature below the glass transition temperature (T 3 The present invention relates to a polybutylene terephthalate laminated film having excellent shape memory and heat resistance dimensional stability obtained by cooling with). 폴리부틸렌 테레프탈레이트 필름, 적층, 유리 전이 온도, 형상 기억, 내열 치수 안정성 Polybutylene Terephthalate Film, Lamination, Glass Transition Temperature, Shape Memory, Heat Resistance Dimensional Stability