МИКРОСЛОИСТЫЕ КОМПОЗИТЫ И СПОСОБЫ ИХ ИЗГОТОВЛЕНИЯ

Изобретение относится к микрослоистым композитам для применения в пневматических диафрагмах, в частности во внутренних оболочках шин. Микрослоистый композит изготавливают из эластомерной композиции, включающей по меньшей мере один эластомер, представляющий собой гомополимер или сополимер дериватизированных из изоолефина с C4 по C7 звеньев, и термопластичной смолы с высокими барьерными свойствами, выбранной из группы, включающей по меньшей мере одно из сложного полиэфира, поливинилового спирта, поливинилхлорида и полиамида. Композит получают совместным экструдированием смеси в виде микрослоев. Технический результат состоит в улучшении барьерных свойств - воздухонепроницаемости микрослоистого композита. 4 н. и 16 з.п. ф-лы, 3 ил., 2 табл.

Щелевая фильера для изготовления пленок из синтетических материалов

magnetic force system.

DEVICE FOR THE KOEXTRUDIEREN OF INDIA RUBBER MIXTURES

COMPOSITION CONTAINING THERMOPLASTIC PLASTICS

PROCEDURE AND DEVICE FOR DISKONTI NUIERLICHEN EXTRUDING OF FOILS FROM THERMOPLASTIC PLASTIC

MICRO PROTECTION GROUPS AND PROCEDURES FOR YOUR PRODUCTION

MULTI-LAYER POLYMER FOILS

ASSEMBLY PROCEDURE AND PLASTIC COMPOUND PIPE

PROCEDURE FOR THE PRODUCTION OF A EINODER MULTILEVEL ONE EXPAND-CASH FOIL

PROCEDURE FOR THE PRODUCTION OF STRETCHED FOIL

PROCEDURE FOR THE PRODUCTION OF LAMINAR MOLDED ARTICLES OR FOILS

BIAXIAL LENGTHENED MEHRSCHICHTFOLIE AND ASSOCIATED LABEL AND PROCEDURE

PROCEDURE FOR MANUFACTURING PRINTED CIRCUIT BOARDS AND PRINTED CIRCUIT BOARD

PROCEDURE FOR THE PRODUCTION OF COMPOSITE SLABS

PROCEDURE FOR THE PRODUCTION OF A MULTILEVEL STEGPLATTE WITHOUT TRIANGLE EFFECT THROUGH COEXTRUSION

DEVICE FOR THE DISTRIBUTION FROM THERMOPLASTIC PLASTIC TO THE PRODUCTION OF MULTILEVEL FOILS.

MULTILEVEL POLYMER FILM.

MORE KOEXTRUSIONSADAPTER.

KOEXTRUSIONSVERFAHREN FOR THE PRODUCTION OF THERMALDUCTILE PLATES

Schichtenförmiger packing film and procedure for its production

PROCEDURE AND DEVICE FOR COMBINING SHEET OR BAND-SHAPED ONE RIVERS IN A KOEXTRUSIONSVERFAHREN

COMPATIBILITY MEDIATOR FOR COMPOSITE MATERIALS FROM NATURAL FIBERS

PROCEDURE FOR THE KOEXTRUDIEREN OF TWO MATERIALEN WITH DIFFERENT TEMPERATURE

COMPOSITION CONTAINING THERMOPLASTIC PLASTICS

COMPOSITION CONTAINING THERMOPLASTIC PLASTICS

COMPOSITION CONTAINING THERMOPLASTIC PLASTICS

COMPOSITION CONTAINING THERMOPLASTIC PLASTICS

COMPOSITION CONTAINING THERMOPLASTIC PLASTICS

COMPOSITION CONTAINING THERMOPLASTIC PLASTICS

COMPOSITION CONTAINING THERMOPLASTIC PLASTICS

COMPOSITION CONTAINING THERMOPLASTIC PLASTICS

COMPOSITION CONTAINING THERMOPLASTIC PLASTICS

COMPOSITION CONTAINING THERMOPLASTIC PLASTICS

COMPOSITION CONTAINING THERMOPLASTIC PLASTICS

COMPOSITION CONTAINING THERMOPLASTIC PLASTICS

Forming methods

This invention relates to methods for forming polymer(s) comprising heating of a polymer to be formed to a temperature above its glass transition temperature, continuously depositing (preferably by flowing or laying) the polymer onto a moulding surface (herein after "lower moulding surface") of a first mould, (preferably in a manner that reduces, eliminates or minimises shear stress or other stress in said polymer so deposited), the polymer remaining above the glass transition temperature, applying a moulding surface (herein after "upper surface") of a second mould to at least the exposed surface (herein after "upper surface") of the polymer while the polymer remains at a temperature above the glass transition temperature, and allowing the polymer to transition to below the glass transition temperature while within or between the upper and lower moulding surfaces, wherein the polymer is removed from the moulding surfaces. Apparatus is also provided.

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

STAIN RESISTANT POLYCARBONATE PANELS

Mo-3028 PC-208 STAIN RESISTANT POLYCARBONATE PANELS The present invention is related to a stain resistant polycarbonate panel which preferably comprises co-extruded polycarbonate sheet and an adherent layer based on linear polycarbonate resin which contains an additive conforming to wherein R1 and R2 independent of each other are a hydrogen or a halogen atom, a C1-C12 alkoxy, C7-C18 arylalkoxy or a C1-C10 alkyl, cycloalkyl, arylalkyl or an aryl radical and R3 and R4 independent of each other are a hydrogen atom, a C1-C10 alkyl, cycloalkyl, arylalkyl or an aryl radical, n is an integer of 0-4 and m is an integer of 1 to 3, { Bridge } is either Mo-3028 or where p is 0-3, q is 1-10,Y denotes any of , and , and R3 and R4 independently denote a hydrogen atom a C1-C10 alkyl, cycloalkyl, arylalkyl or an aryl radical characterized in that said adherent layer is about 5 to 100 microns in thickness and in that only one of its surfaces is bonded. Mo-3028 ...

PLASTIC CO-EXTRUSION APPARATUS WITH SELECTABLE POLYMER FLOW CONTROL AND PRODUCT PRODUCED USING THE APPARATUS

Co-extrusion apparatus (10) for manufacturing a laminated plastic film or sheet comprises a plug-type layer sequencer (20) including a plurality of channels for conducting a plurality of polymer flows; a transitional aspect ratio block (24) for inducing the plurality of polymer flows to converge; and a flow velocity profiler cartridge (32) for combining the plurality of polymer flows to form the film. In one embodiment, the layer sequencer includes a tapered selector pin which minimizes mechanical damage when the selector pin is removed. In accordance with another embodiment, the flow velocity profiler cartridge (32) includes inserts fitting within cavities for controlling the polymer flows which form the layers of the film or sheet. At least one such insert defines lanes within an associated cavity so as to promote the formation of lanes of differing polymer composition within at least one layer of the laminated sheet or film.

MULTIPLE MELT CHAMBER EXTRUSION DIE

COEXTRUDED MULTILAYER FOAMED FILM FOR PLASTIC CONTAINER CLOSURES AND PROCESS FOR MANUFACTURE

... 2053898 9014945 PCTABS00002 A plastic container closure, such as a bottle cap liner or tamper evident seal, is formed from a coextruded multilayer foamed film. The coextruded multilayer foamed film has at least one solid film layer of a first polyolefin blend containing linear low density polyethylene, low density polyethylene, and, optionally high density polyethylene, and at least one foamed layer of a second polyolefin blend containing linear low density polyethylene, low density polyethylene, and optionally ethylene vinyl acetate. The multilayer foamed film may be coextruded using a blown film or cast film extrusion process under defined conditions. The coextruded multilayer foamed film may be laminated to other materials such as polyester film, thermoplastic adhesive films or metallic films and used as a plastic container closure, or may be applied as a liner to a plastic bottle cap.

PROCESS FOR PRODUCING MULTILAYER POLYTETRAFLUOROETHYLENE POROUS MEMBRANE AND SEMISINTERED POLYTETRAFLUOROETHYLENE MULTILAYER STRUCTURE

A process for producing a multilayer polytetrafluoroethylene porous membrane is disclosed, which process comprises at least two layers having different average pore diameters, the process comprising the steps of: filling the inside of a cylinder of an extruding mold distinctively with at least two kinds of polytetrafluoroethylene fine powders with each of which a liquid lubricant has been mixed; pasteextruding the powders to obtain a multilayer extrudate, which is then optionally rolled; removing the liquid lubricant from the multilayer extrudate or the rolled multilayer extrudate to obtain an unsintered multilayer structure; subsequently heating the unsintered multilayer structure at a temperature not lower than the melting point of sintered polytetrafluoroethylene to obtain a semisintered multilayer structure; and then stretching the semisintered multilayer structure at least monoaxially. A semisintered polytetrafluoroethylene multilayer structure capable of being used as an intermediate ...

EXTRUSION APPARATUS AND METHOD WITH PRESSURE EQUALIZATION

An extrusion apparatus and method for producing a composite profile strip characterized by an extrusion head having plural flow channels extending to an extrusion die and at least two extruders for feeding respective components at respective different pressures into the flow channels for passage to the extrusion die. The extrusion die has a common die outlet from which the components are discharged to form the composite profile strip, and respective flow restriction devices are disposed in the flow channels between the extrudersand the extrusion die. The flow restriction devices are operative to decrease the difference in pressure between the components before being brought together at the extrusion the extrusion die and further to dampen the effect changes in extruder speed has on the profile of the composite profile strip.

PRODUCT PACKAGE HAVING RELIABLE OPENABILITY

A plastic packaging material which, when formed as a package having seams, will provide a predictable line of failure along a seam when the package is opened to prevent the package from tearing down the side. The predictable failure path is provided through a lamination process involving specific resins or blends of resins laminated in three (or more) layers in which an extruded inner layer forms a weak inner bond wholly within that inner layer to create the predictable line of failure and in which the process of forming the material does not inhibit processing speed, efficiency, and economics of materials used to provide this reliable openability.

PROCEDURE AND DEVICE FOR THE EDUCATION OF THE INTERNAL WALL PARTS OF VEHICLE TIRES.

METHOD OF ASSEMBLING AND MUCH WALL PLASTIC PIPE

ОДНО- ИЛИ МНОГОСЛОЙНАЯ РУКАВНАЯ ПЛЕНКА, ПРИГОДНАЯ ДЛЯ КОПЧЕНИЯ, ДЛЯ ВОЗДУШНОЙ СУШКИ, ОТСЛАИВАЕМАЯ, В ЧАСТНОСТИ, ПОЛНОСТЬЮ АВТОМАТИЧЕСКИ ОТСЛАИВАЕМАЯ, ДЛЯ УПАКОВКИ ПИЩЕВЫХ ПРОДУКТОВ, А ТАКЖЕ СПОСОБ ЕЕ ПОЛУЧЕНИЯ

Изобретение относится к одно- или многослойной рукавной пленки, пригодной для копчения, воздушной сушки, отслаиваемой, в частности, полностью автоматически отслаиваемой, для пищевых продуктов, в частности, оболочки для колбасных изделий, для копченых и/или сушеных на воздухе колбасных или мясных изделий, причем пленку для пищевых продуктов получают из гомогенного расплава полимера с помощью устройства для пневмоформования с совмещенной экструзией, используя (со)экструдированный полимерный материал, который подают в сопло выдувной головки и двухосно вытягивают способом тройного раздувания, причем гомогенный расплав полимера получают из полимерной смеси из полистирола или смеси разных видов полистирола и поливинилового спирта и/или блок-полимера полиэфирамида. Изобретение относится также к способу получения одно- или многослойной рукавной пленки для пищевых продуктов, пригодной для воздушной сушки, отслаиваемой, в частности, полностью отслаиваемой, в частности, оболочки для колбасных изделий ...

МНОГОСЛОЙНЫЙ СЕРАРАТОР АККУМУЛЯТОРНЫХ БАТАРЕЙ ИЗГОТОВЛЕННЫЙ МЕТОДОМ СОВМЕСТНОЙ ЭКСТРУЗИИ

Сепаратор аккумуляторных батарей содержит микропористую мембрану, изготовленную общей экструзией, которая имеет по меньшей мере два слоя, изготовленных из полимеров, которые способны к экструзии, и имеет равномерную толщину со среднеквадратичным отклонением <0,80 микрон (мкм) или адгезией между слоями, которая определяется сопротивлением отслаиванию, >60 граммов.

Покрытая путем коэкструзии многослойная плита с перегородками

Данное изобретение касается способа изготовления бесклиновых коэкструдированных плит с перегородками, специальных экструзионных головок для изготовления таких плит, их применения для изготовления таких плит, а также коэкструдированных плит с перегородками без эффекта треугольника, которые включают, по меньшей мере, одну основную структуру, которая содержит термопласт и, по меньшей мере, одно коэкструдированное покрытие (9, 10), и других изделий, которые содержат такую коэкструдированную плиту с перегородками.

СПОСОБ СБОРКИ И МНОГОСТЕННАЯ ПЛАСТМАССОВАЯ ТРУБА

Способ соединения путем сварки ИК-лазером многослойных пластмассовых полос, которые содержат один ориентированный слой, прозрачный для излучения, и один слой, поглощающий это излучение, причем этим же методом полосы приваривают к заранее сформированной пластмассовой основе. Предложена также многостенная труба, получаемая привариванием этих полос к пластмассовому сердечнику.

Method of making polymeric multilayer films

Mechanical interlocking die

Method of manufacturing an oriented film from alloyed thermoplastic polymers, apparatus for such manufacture and resulting products

Flat die and manufacturing method of laminated resin film or sheet

The present invention provides a flat die which, even when resins differing in viscosity during molding are laminated, can give an intended thickness distribution without having a complicated structure. The flat die (1) comprises a resin introduction part (20), a manifold (21) connected to the resin introduction part (20), and a lip opening part (12). It has a protruded space (22). Thus, when different resins superposed in the thickness direction flow through the manifold (21), the resins can be made to differ from each other in the manner or degree in which the resins spread in the width direction.

Appts. for coextrusion of rubber mixtures

Process of mixture of masses in circulation by formation of interfaces in a fluid mass in circulation

Multi-layer process of coating

DEVICE OF SLEEVING Of a WIRE TABLECLOTH HAS SYMMETRICAL FEEDER CANALS

EXTRUDER DIE ASSEMBLY FOR MOLDING A CONDUCTIVE RING OBLIQUE

REALIZATION OF SHEETS IN AT LEAST TWO THERMOPLASTIC MATTERS DIFFERENT AND DEVICE FOR THE IMPLEMENTATION FROM THE PROCESS

L'invention concerne un procédé de réalisation de feuilles en au moins deux matières thermoplastiques différentes dont une matière souple et une matière rigide, ainsi qu'un dispositif pour la mise en œuvre du procédé. Selon le procédé de l'invention, les matières thermoplastiques sont co-extrudées en continu de manière à obtenir un flan « sans fin » constitué d'au moins trois bandes juxtaposées « side-by-side », chacune de ces bandes étant réalisée en au moins une desdites matières et différente d'une bande adjacente, et le flan étant coupé à la fin en des longueurs prédéterminés pour obtenir les feuilles souhaitées.

POLYESTER FILMS AND THEIR PRODUCTION

HEATABLE STRATIFIED MATERIAL AND MANUFACTURING METHOD THEREFOR

ADJUSTABLE FLAT SPINNERET FOR THE COEXTRUSION OF FLAT FILMS COMPRISING A PLURALITY OF COMPONENTS

Fish-tail die producing multi-layer plastic - strips

Extrusion die for laminate prodn - with at least two slots of variable section

Improvements brought to the processes and apparatuses of extrusion of films and multi-layer sheets

Process and apparatus of extrusion

TOGETHER OF DIE Of EXTRUSION MACHINE OF MOULDING FOR TIRE WITH ANNEAUCONDUCTEUR OBLIQUES

La présente invention se rapporte à une filière (100) d'extrudeuse pour mouler un pneumatique comportant un anneau conducteur oblique (14) faisant saillie à partir d'une sous-couche en extrudant séparément et en combinant une chape de bande de roulement, une sous-couche et des ailes de bande de roulement, ladite filière (100) comprenant une filière de préforme (110), une filière finale (120) et une caissette (130), caractérisé en ce que ladite filière de préforme comprend : - un bloc (112b) pour ledit anneau conducteur, comprenant une plaque divisant un passage d'extrusion en deux espaces de droite et de gauche ; et - un évidement triangulaire (113b) formant un passage d'extrusion vers le haut pour la composition de caoutchouc de sous-couche.

IMPROVEMENTS IN OR RELATING TO PROCESSES FOR THE EXTRUSION COATING OF SUBSTRATES

Installation pour l'extrusion d'un boudin multicouche de matières thermoplastifiées

Dans cette installation, le bloc d'entrée 4 présente des canaux d'entrée 7 et le bloc de co-extrusion 5 présente un canal de couchage 8 ainsi que des canaux de commande 9 débouchant dans le canal de couchage 8 et munis d'éléments de commande 10 pour les différents flux massiques de la matière thermoplastifiée. La filière de sortie 6 réalisée sous la forme d'une filière à canal unique est raccordée au canal de couchage 8. Entre le bloc d'entrée 4 et le bloc de co-extrusion 5 est installé un bloc de distribution 12 interchangeable qui fait partie d'un jeu d'éléments de construction constitué d'une pluralité de blocs de distribution interchangeables. Chaque bloc de distribution 12 comporte des canaux d'entrée 13 correspondant aux canaux d'entrée 7 ainsi que des canaux de distribution 14 correspondant aux canaux de commande 9 qui, d'un bloc de distribution à l'autre, sont raccordés différemment aux canaux d'entrée 13 et provoquent des couchages différents dans le boudin 1.

복적층체의 제조 방법 및 그 제조 장치, 복적층체

... 본 발명의 복적층체의 제조 방법은, 적어도 2 개의 용융 수지를 종방향으로 배열하여 인접시킨 적층류를 상하로 2 분할하고, 분할된 적층류를 유동 방향을 향하여 반대 방향으로 유도하고, 이어서, 양자를 유동 방향의 중심을 향하여 유도하고, 좌우 방향으로 인접하여 재배치해서 합류시키는 공정 1 (L 유로) 과, 적어도 2 개의 용융 수지를 종방향으로 배열하여 인접시킨 적층류를 상하로 2 분할하고, 분할된 적층류를 유동 방향을 향하여 상기와는 반대 방향으로 유도하고, 이어서, 양자를 유동 방향의 중심을 향하여 유도하고, 좌우 방향으로 인접하여 재배치해서 합류시키는 공정 2 (R 유로) 를 가지며, 상기 공정 1 (L 유로) 및 상기 공정 1 (R 유로) 를 이 순서로 적어도 3 공정 이상 교대로 반복한다. 이 방법에 의하면, 양 단부의 층의 소실이 억제되고, 층의 두께 불균일 혹은 종배열의 붕괴가 억제되어, 보다 균일성이 우수한 복적층체를 제조할 수 있다.

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 ...

CELLULOSE ESTER FILM WITH EXCELLENT ULTRAVIOLET RAYS-ABSORBING PROPERTY AND DURABILITY AND A METHOD FOR PRODUCING THE SAME

PURPOSE: A cellulose ester film is provided to ensure excellent ultraviolet ray(UV) absorptivity and to improve the productivity of a polarizer since an ultraviolet absorbent suppresses the bleed out or the eluting to the film outside. CONSTITUTION: A cellulose ester film comprises a benzotriazole-based ultraviolet-absorbent represented by chemical formula 1 and a triazine-based ultraviolet-absorbent represented by chemical formula 2. In chemical formula 1, R1, R2, R3, R4, R5, R6, R7 and R8 independently represent hydrogen atom, halogen atom, hydroxyl group, alkyl group, alkenyl group, alkoxy group, alkylthio group, aryl group, aryloxy group, or arylthio group. In chemical formula 2, R1, R2 and R3 represent respectively an alkyl group, alkenyl group, alkoxy group, alkylthio group, aryl group, aryloxy group or arylthio group. COPYRIGHT KIPO 2011 ...

THERMOPLASTIC RESIN FILM AND METHOD FOR PRODUCING SAME

To provide a thermoplastic resin film, and process for producing the same, which can obtain a film having high optical properties in which the occurrence of residual strain and the exhibition of retardation during film forming are suppressed. A film (12) is produced by extruding melted thermoplastic resins in sheet form through a die (24), and sandwiching the sheet between a pair of rollers (26), (28) configured so that at least one of the rollers is an elastic roller (26) made from metal, to cool and solidify the sheet into the film, the thickness Z of a metal tube (44) constituting an outer shell of the elastic roller (26) being in a range of 0.05 mm Подробнее

Covering Panel

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.

MULTILAYER RESIN FILM AND METHOD FOR PRODUCING MULTILAYER RESIN FILM

Provided are a multilayer film comprising a plurality of resin layers having melt viscosities at the same heating temperature being different from one another, wherein it is a multilayer resin film which is reduced in the irregularity of the surface thereof; and a method for producing a multilayer resin film which comprises laminating a plurality of resins having melt viscosities at the same heating temperature being different from one another, without the formation of irregularities on the surface of the film. A method for producing a multilayer resin film, wherein a plurality of resins having melt viscosities at one heating temperature being different from one another are laminated, by the use of a multi-manifold die, which comprises controlling respective temperatures of an extruder provided connected to a manifold, the manifold, a die adjacent to the manifold, through which the above plural resins are passed, in such a manner that the difference of the melt viscosities of adjacent resin ...

METHOD OF CO-EXTRUDING, CO-EXTRUSION DIE, AND EXTRUDED ARTICLES MADE THEREFROM

A die comprising two die cavities, with each capable of supplying polymeric material, and a distribution plate interposed between at least a portion of each of the two die cavities. The distribution plate has a dispensing edge and a plurality of extrusion channels. First and second extrusion channels extend from entrance openings at the first and second die cavities, respectively, to exit openings on the dispensing edge. The exit openings of the first and second extrusion channels are disposed in alternating positions along the dispensing edge. A method of extruding with such a die and an extruded article made therefrom are also disclosed. The method includes co-extruding a first polymeric composition and a second polymeric composition. The extruded article comprises a plurality of longitudinal first stripes of the first polymeric composition alternating with a plurality of longitudinal second stripes of the second polymeric composition.

PRESSURE SENSITIVE ADHESIVE (PSA) LAMINATES

A PSA laminate is provided comprising at least one non-adhesive laminate and at least one tackifier layer; wherein the non-adhesive laminate comprises at least one facestock layer and at least one adhesive base layer; wherein the facestock layer comprises at least one facestock material; wherein the adhesive base layer comprises at least one adhesive base polymer; wherein the tackifier layer comprises at least one tackifier; wherein the tackifier composition is not a PSA; and wherein the tackifier layer is applied to the adhesive base layer side of the non-adhesive laminate to produce the PSA laminate. Processes for producing the PSA laminate are also provided as well as articles comprises the PSA laminates.

RESIN COMPOSITION, EXTRUDED ARTICLES AND ANTISTATIC SHEET

An antistatic sheet made of a composition comprising 60 to 85 wt% of a styrene resin and 15 to 40 wt% of a polyether ester amide, wherein the styrene resin is a copolymer of a styrenic monomer and a (meth)acrylic ester monomer.

Coextrusion adapter

A coextrusion adapter for an extrusion installation with extruders and a tool for producing a composite coextrusion structure of thermoplastic material. The coextrusion adapter has a central conduit with an end at an inlet side for connecting an extruder and an end at an outlet side for connecting the tool. The coextrusion adapter has at least one coextrusion conduit with an inlet end and an outlet end. A second extruder can be connected to the inlet end. At an end facing the outlet end the adjusting elements have a wedge-shape adjusting section with one wedge surface facing the central conduit and another wedge surface facing the outlet end of the coextrusion conduit. The adjusting section of the adjusting elements is pivotal around an axis extending over the width of the outlet end by the actuating drives. When an increase of the inside diameter of the respective transverse section of the outlet end occurs the corresponding transverse section of the central conduit is narrowed, and vice ...

Device for joining at least two material flows in a laminar coextrusion machine

The invention relates to a device for joining together at least two material flows in a laminar coextrusion machine comprising at least two extruders, more precisely as many extruders as layers of different materials used, a device for joining together the flows coming from the extruders into a so-called global flow, said device being also called a distribution box, and an extrusion head supplied by the global flow. The joining device includes a main channel wherein open annexed channels called supply channels convey the different material flows coming from the extruders, the channels being provided with means for restricting the flow passage cross-section. The supply channel connecting each extruder to the main channel is at least partially in the form of a cylindrical plug valve having means which transform a cylindrical rod into a planar sheet.

EXTRUSION METHOD FOR PRODUCING A FLAT FIBRE MADE FROM SYNTHETIC RAW MATERIAL

The invention relates to polymer processing methods and, in particular, to methods for producing flat synthetic fibers with predetermined characteristics by means of polymer extrusion. The flat synthetic fiber produced using this method can be used for different purposes in many branches of industry. It can be used, for example, in the weaving industry and the food industry and as a packaging material, and can compare favourably with known fibers as a result of its high durability and resistance to the effects of petrol and moisture, as well as being reusable. Furthermore, the flat synthetic fiber can be used in radio electronics, the instrumentation industry and other branches of industry. The objective set by the designer of this novel extrusion method for producing flat fibers from synthetic raw material was to devise an extrusion method for producing flat fibers made from synthetic raw material which would make it possible to reduce the cost of manufacturing said flat fibers by using ...

APPARATUS AND PROCESS FOR PRODUCING LAMINATED SHEET

There is provided a laminated sheet producing apparatus that adds an edge material to at least one of the end portions in the width direction of a laminate in which a plurality of kinds of sheet materials are laminated as an edge portion at a confluence portion, wherein when an area of each region resulting from division of a cross-sectional configuration of the edge material perpendicular to the flow channel direction of each flow channel at the confluence portion by lines for dividing the configuration into 10 equal portions in the lamination direction is defined as Sn (n=1,2,3,4,5) in the direction from a central portion in the lamination direction toward an end portion in the lamination direction, the relationships of Formulae (1) and (2) are simultaneously satisfied. S ⁢ 1 ≤ S ⁢ 2 ≤ S ⁢ 3 ≤ S ⁢ 4 ≤ S ⁢ 5 S ⁢ 1 < S ⁢ 5 ...

Coextrusion adapter

Die Erfindung betrifft einen Koextrusionsadapter zur Herstellung mehrschichtiger Verbunde aus thermoplastischen Materialien, umfassend ein Gehäuse (10) mit einem in dem Gehäuse (10) angeordneten Zentralkanal (11) mit einer Einlassöffnung (110) und einer Auslassöffnung (111) sowie mindestens einem in den Zentralkanal (11) einmündenden Koextrusionskanal (12), wobei der Zentralkanal (11) und der mindestens eine Koextrusionskanal (12) in Richtung der Auslassöffnung (111) von den thermoplastischen Materialien durchströmbar sind, wobei das Gehäuse (10) eine den Zentralkanal (11) durchsetzende Aufnahmebohrung (100) aufweist, in welche ein Koextrusionsbolzen (13) einsetzbar ist, der seinerseits eine den Zentralkanal (11) fortsetzende Kanalbohrung (130) aufweist und bereichsweise zwischen seiner Außenoberfläche (131) und der Wandung der Aufnahmebohrung (100) einen Teilabschnitt (120) des mindestens einen Koextrusionskanals (12) bildet.

Method of producing composite materials, stratiform composites and containers made therefrom

PROCEDURE FOR MANUFACTURING MULTILEVEL FOIL MATERIALS, PROCEDURES FOR THE PROCESSING OF POLYMERS, EXTRUDING DEVICE, POLYMERI FOIL MATERIAL AND HEREBY MANUFACTURED PACKING

PROCEDURE AND DEVICE FOR THE PRODUCTION OF A MULTILEVEL LAMINAR ONE POLYMER DIAPHRAGM

DEVICE FOR THE COEXTRUDIEREN OF INDIA RUBBER MIXTURES

DEVICE FOR THE PRODUCTION OF COURSES WITH STRIPS NEXT TO ONE ANOTHER FROM DIFFERENT ONES, IN PARTICULAR MULTI COLOUR PLASTICS

MANUFACTURING PROCESS OF MEANS CO EXTRUDING OF AN ABSORBING PACKING MATERIAL FROM PLASTIC, AND THE MANUFACTURED PACKING MATERIAL

DEVICE AND METHOD TO THE SHROUD OF A STRAND

Die Assembly for Producing a Film

The present disclosure provides a die assembly for producing a microcapillary film. The die assembly includes a first die plate, a second die plate, a plurality of multi-jackbolt tensioners connecting the first die plate to the second die plate, a manifold, and a plurality of nozzles. The manifold is located between the pair of die plates and defines a plurality of film channels therebetween. The plurality of film channels converge into an elongate outlet, wherein a thermoplastic material is extrudable through the plurality of film channels and the elongate outlet to form a microcapillary film. The plurality of nozzles are located between the plurality of film channels. The plurality of nozzles are operatively connected to a source of channel fluid for emitting the channel fluid between layers of the microcapillary film, whereby a plurality of microcapillary channels are formed in the microcapillary film.

PRODUCTION OF MICRO- AND NANO-FIBERS BY CONTINUOUS MICROLAYER COEXTRUSION

A multilayered polymer composite film includes a first polymer material forming a polymer matrix and a second polymer material coextruded with the first polymer material. The second polymer material forms a plurality of fibers embedded within the polymer matrix. The fibers have a rectangular cross-section. 124-. (canceled)25. A method for producing a polymer construct comprising:coextruding a first polymer material with a second polymer material to form a coextruded polymer film having discrete overlapping layers of polymeric material that each extend the entire length of the coextruded polymer film;multiplying the overlapping layers by dividing the coextruded polymer film into portions and stacking the portions to form a multilayered composite film;separating the first polymer material from the second polymer material to form a plurality of first polymer material fibers having a rectangular cross-section; andadhering the first polymer material fibers together to form the polymer construct.26. The method of claim 25 , wherein separating the first polymer material from the second polymer material comprises immersing the multilayered composite film in a solvent to dissolve the second polymer material.27. The method of claim 26 , wherein the solvent comprises water claim 26 , the first polymer material being water insoluble and the second polymer material being water soluble.28. The method of claim 25 , wherein the first polymer material comprises polycaprolactone and the second polymer material comprises polyethylene oxide.29. The method of claim 25 , wherein separating the first polymer material from the second polymer material comprises applying pressurized water to the multilayered composite film.30. The method of claim 25 , further comprising depositing a static electric charge on the first polymer material fibers.31. The method of claim 25 , wherein the first polymer material comprises polystyrene and the second polymer material comprises polyamide 6.32. The ...

METHOD OF MANUFACTURING A WORKPIECE

A method of manufacturing a workpiece includes heating a pre-formed blank of a first fiber reinforced thermoplastic material in an oven. A second fiber reinforced thermoplastic material is heated in an extruder. The second fiber reinforced thermoplastic material is extruded from the extruder, within the oven, to form an extrudate. The extrudate is positioned on the pre-formed blank of the first fiber reinforced thermoplastic material, within the oven, to form a composite blank. The extrudate may be formed into a shape before being positioned onto the pre-formed blank, after being positioned onto the pre-formed blank. The composite blank may then be transferred to a final shaping station. 1. A method of manufacturing a workpiece , the method comprising:heating a pre-formed blank of a first fiber reinforced thermoplastic material in an oven;heating a second fiber reinforced thermoplastic material in an extruder;extruding the second fiber reinforced thermoplastic material from the extruder to form an extrudate;positioning the extrudate on the pre-formed blank of the first fiber reinforced thermoplastic material to form a composite blank; andtransferring the composite blank to a final shaping station.2. The method set forth in claim 1 , wherein extruding the second fiber reinforced thermoplastic material is further defined as extruding the second fiber reinforced thermoplastic material in the oven.3. The method set forth in claim 1 , wherein positioning the extrudate on the pre-formed blank is further defined as positioning the extrudate on the pre-formed blank within the oven.4. The method set forth in claim 1 , wherein the extrudate of the second fiber reinforced thermoplastic material is extruded from the extruder directly onto the pre-formed blank of the first fiber reinforced thermoplastic material.5. The method set forth in claim 1 , further comprising forming the extrudate of the second fiber reinforced thermoplastic material into a pre-form claim 1 , within the ...

METHOD OF PRODUCING MICROPOROUS PLASTIC FILM

A method of producing a microporous plastic film includes kneading a diluent and a polyolefin resin with an extruder; discharging the polyolefin resin kneaded with the diluent from a die lip in a sheet shape; cooling and solidifying the sheet discharged from the die lip on one or plurality of cooling drums; reheating and drawing the solidified sheet with a plurality of rollers in a sheet conveying direction; cooling the sheet drawn in the sheet conveying direction; gripping both ends of the sheet with clips; introducing the sheet into a tenter; washing the diluent out to prepare a uniaxially or biaxially oriented microporous plastic film; and driving a nip roller with a motor, the nip roller pressing a sheet interposing between the nip roller and at least one of the rollers. 15-. (canceled)6. A method of producing a microporous plastic film comprising:kneading a diluent and a polyolefin resin with an extruder;discharging the polyolefin resin kneaded with the diluent from a die lip in a sheet shape;cooling and solidifying the sheet discharged from the die lip on one or plurality of cooling drums;reheating and drawing the solidified sheet with a plurality of rollers in a sheet conveying direction;cooling the sheet drawn in the sheet conveying direction;gripping both ends of the sheet with clips;introducing the sheet into a tenter;washing the diluent out to prepare a uniaxially or biaxially oriented microporous plastic film; anddriving a nip roller with a motor, the nip roller pressing a sheet interposing between the nip roller and at least one of the rollers.7. The method according to claim 6 , further comprising driving with a motor a nip roller pressing a sheet interposing between the nip roller and at least one of the rollers claim 6 , the rollers heating the sheet in a process upstream from the drawing with the rollers in the sheet conveying direction.8. A microporous plastic film produced by the method according to .9. A battery separator comprising the ...

APPARATUS FOR PRODUCING LAMINATED FABRIC PLY STRIPS

An apparatus is provided for making reinforced ply is described. The apparatus includes a cross-head die assembly for use with an extruder, the cross-head die assembly having: an inlet section having an inlet for receiving flow from the extruder; an upper support block removably connected to a first side of the interior section; and a lower block removably connected to a second side of the interior section. A first flow passage is located between the upper support block and the interior section and is in fluid communication with the inlet. A second flow passage is located between the interior section and the lower support block and is in fluid communication with the inlet. The cross-head die assembly further includes a removably mounted die located at an outlet end of the assembly. The first and second flow passage is in fluid communication with an inlet of the die; the interior section further includes an interior slot which extends from a first side of the assembly to the inlet of the die; and a removable cassette is positioned in the interior slot. 1. A cross-head die assembly for use with an extruder , the cross-head die assembly comprising: an inlet section having an inlet for receiving flow from the extruder; an upper support block removably connected to a first side of the interior section; and a lower block removably connected to a second side of the interior section; a first flow passage being located between the upper support block and the interior section and being in fluid communication with the inlet; a second flow passage being located between the interior section and the lower support block and being in fluid communication with the inlet; said cross-head die assembly further comprising a removably mounted die located at an outlet end of the assembly , said first and second flow passage being in fluid communication with an inlet of the die; said interior section further comprising an interior slot which extends from a first side of the assembly to the ...

MIXER STRUCTURE FOR A FILM DIE AND A FILM DIE

A mixer structure for a film die for a polymer melt includes multiple web elements. The web elements include a first web element and a second web element. The first web element and the second web element include at least an end, which is connected to a base. A film die includes a first tool element, a second tool element, and a flow channel for the polymer melt extending between the first tool element and the second tool element. The mixer structure is arranged in the flow channel. The mixer structure is held in at least one of the tool elements by a holding element. 1. A mixer structure for a film die for a polymer melt comprising a plurality of web elements for arrangement in a flow channel formed by the film die for the polymer melt , whereby the flow channel is configured for the flow of the polymer melt therethrough in a direction of flow in an operating state , whereby the direction of flow is arranged substantially parallel to a longitudinal axis of the flow channel , whereby the mixer structure comprises a first web element and a second web element whereby at least one of the first web element or the second web element comprises at least an end , which is connected to a base configured to be received in an inner wall of the film die , whereby at least one of the first web elements or the second web elements is received at least partially in the base.2. The mixer structure of claim 1 , whereby the first web element is arranged crosswise to the second web element claim 1 , such that in particular a distance between the end of the first web element and the end of the second web element substantially corresponds to a width of the base.3. The mixture structure of claim 1 , whereby each of the ends of the first and second web elements is connected to the base.4. The mixer structure of claim 1 , whereby the base comprises a fixing means for connection with a tool element.5. The mixture structure of claim 1 , whereby the base is arranged consecutively to at least ...

FLOW DIVERTER VALVE FOR AN EXTRUSION SYSTEM

A flow diverter for an extrusion die is disclosed. The flow diverter includes a body having an outer surface, an elongate opening that extends along a first axis, a set of input passages that extend from said outer surface through said body to said elongate opening, and a set of output passages that extend through said body from said elongate opening to said outer surface. The flow diverter also includes an adjustable valve positioned in said elongate opening. The adjustable valve also has a monolithic spool including a first recess and a second recess opposite to said first recess. The spool is rotatable with respect to said outer body between a first position in a first flow configuration, and a second position in a second, different flow configuration. 1. A flow diverter for an extrusion die configured to form a laminate , the flow diverter comprising:a body having an outer surface, an elongate opening that extends along a first axis, a set of input passages that extend from said outer surface through said body to said elongate opening, and a set of output passages that extend through said body from said elongate opening to said outer surface; a) an outer body fixed to said body, said outer body including a set of channels open to said input passages and said output passages such that material entering said set of input passages travels through said set of channels to said set of output passages; and', 'b) a monolithic spool including a first recess and a second recess opposite to said first recess, wherein said spool is rotatable with respect to said outer body between a first position where said first recess and said second recess align said set of channels with said set of input passages and said set of output passage in a first flow configuration, and a second position where said first recess and said second recess align said set of channels with said set of input passages and said set of output passages in a second flow configuration, and wherein said first ...

Method and apparatus for making a compartmentalized tire sealant strip

A method for making a compartmentalized sealant strip and barrier assembly 10 has the steps of co-extruding a barrier strip 9 of non-sealant elastomeric material with a plurality of projecting linear extending walls 9 c and a sealant strip 11 wherein the sealant strip 11 is formed on one side of the barrier strip 9 filling the space between the plurality of projecting walls 9 c to form a plurality of linearly extending rows of sealant 11 across the transverse width of the co-extrusion to form the compartmentalized sealant strip and barrier assembly 10. The step of co-extruding may further include the step of: forming the projecting walls 9 c on an inclined angle relative to a plane perpendicular to the width of the assembly 10. The step of co-extruding further has the step of forming the barrier strip 9 with lateral edges 9 a and 9 c that extend beyond the lateral outermost sealant strips 11 on each side of the assembly 10, the lateral edges 9 a, 9 b being bonding surfaces to seal the sealant strip and barrier assembly 10 into an uncured rubber layer when assembled into an unvulcanized tire 2.

FEEDBLOCK FOR MANUFACTURING MULTILAYER POLYMERIC FILMS

A feedblock including a first packet creator that forms a first packet including a first plurality of polymeric layers, the first plurality of layers including at least four first individual polymeric layers; and a second packet creator that forms a second packet including a second plurality of polymeric layers, the second plurality of layers including at least four second individual polymeric layers, wherein the first and second packet creators are configured such that, for each packet creator, respective individual polymeric layers of the plurality of polymeric layers are formed at approximately the same time. The feedblock may include a packet combiner that receives and combines the first and second primary packets to form a multilayer stream. In some examples, at least one of the first and second primary packets may be spread in the cross-web direction prior to being combined with one another. 1. A feedblock comprising:a first packet creator that forms a first packet including a first plurality of polymeric layers, the first plurality of polymeric layers including at least four first individual polymeric layers;a second packet creator that forms a second packet including a second plurality of polymeric layers, the second packet creator separate and distinct from the first packet creator, the second plurality of polymeric layers including at least four second individual polymeric layers, wherein the first packet creator is configured such that the first individual polymeric layers are formed at approximately the same time as one another, and the second packet creator is configured such that the second individual polymeric layers are formed at approximately the same time as one another; andmeans for combining the first packet and the second packet to form a multilayer flow stream including the first plurality of polymeric layers and the second plurality of polymeric layers,wherein the feedblock is configured such that for each primary packet generated in the ...

STIFFNESS ENHANCED TREAD ELEMENT

A tire tread may be formed by simultaneously extruding a tread cap formed of a first material and a tread base formed of a second material having a substantially different stiffness property than the first material. One tread element may have a strip of the second material extending from the tread base into the tread cap and, a second tread element may also have a strip of the second material extending from the tread base into the tread cap. 1. A method of forming a pneumatic radial tire comprising the steps of:(A) providing a radial green tire carcass comprising a crown region and pair of sidewalls;(B) forming a green tire tread by simultaneously extruding a tread cap formed of a first material and a tread base formed of a second material having a substantially higher stiffness property than the first material;wherein step (B) comprises the step of: providing the green tire tread with: (1) a first portion having a first strip of the second material extending from the tread base into the tread cap; and, (2) a second portion having a second strip of the second material extending from the tread base into the tread cap;(C) applying the green tire tread to the crown region of the radial green tire carcass to form a green tire; and,(D) vulcanizing the radial green tire to form a pneumatic radial cured tire that comprises a tread having: (1) a first shoulder tread element comprising the first strip extending from the tread base into the tread cap, wherein the first shoulder tread element has a stiffness property significantly different from the stiffness property of the first shoulder tread element if the first shoulder tread element was formed only of the first material; and, (2) a second shoulder tread element comprising the second strip extending from the tread base into the tread cap, wherein the second shoulder tread element has a stiffness property significantly different from the stiffness property of the second shoulder tread element if the second shoulder tread ...

METHOD AND APPARATUS FOR EXTRUSION OF THERMOPLASTIC HANDRAIL

A method of and apparatus for extruding an article of uniform cross-section, the article including a thermoplastic material and at least one cable for inhibiting stretch of the article. The cable is supplied to a respective tube and is conveyed between upstream and downstream ends. The thermoplastic material may be supplied to the downstream end of the tube. The thermoplastic material is brought together with the cable to embed the cable within the thermoplastic material, thereby forming a composite extrudate. The tube is configured to at least hinder movement of loose windings of the cable from the downstream end towards the upstream end, which may prevent or at least reduce incidence of “birdcaging”. 1. A method of extruding an article of uniform cross-section , the article comprising a thermoplastic material and at least one cable for inhibiting stretch of the article , the method comprising:supplying the at least one cable to a respective at least one tube, the tube having upstream and downstream ends, a length extending between the upstream and downstream ends, and an inner dimension;conveying the cable through the tube between the upstream and downstream ends;supplying the thermoplastic material to the downstream end of the tube;bringing the thermoplastic material together with the cable to embed the cable within the thermoplastic material, thereby forming a composite extrudate; andpermitting the composite extrudate to cool and solidify,wherein at least one of the length and the inner dimension of the tube is selected to at least hinder movement of loose windings of the cable from the downstream end towards the upstream end of the tube.2. The method of claim 1 , wherein claim 1 , in the step of conveying claim 1 , the cable is guided through the tube having the length that is between 200 to 300 times a diameter of the cable.3. The method of claim 2 , wherein claim 2 , in the step of conveying claim 2 , the at least one cable is guided through the tube having ...

Continuous Fiber Reinforced Biocomposites and Polymers

A device for introducing continuous fiber into a product material is provided. The continuous fiber is provided from at least one continuous fiber supply. The device comprises a housing having a first opening and a second opening. A channel is formed through the housing from the first opening to the second opening. At least one fin member extends from the housing into the channel with the at least one fin member having a conduit formed therethrough. Upon the product material travelling through the channel of the housing, the continuous fiber travels from the continuous fiber supply, through the conduit, and into the product material. The continuous fiber increases strength and stiffness of the product material while decreasing time-dependent creep deformation of the product material. 1. A method for introducing continuous fiber into a product material , the continuous fiber being provided from at least one continuous fiber supply , the method comprising:forming a channel through an extrusion die tool housing wherein the product material travels linearly through the channel;softening the product material with a heating element within the housing as the product material travels through the channel;extending a plurality of fin members from the housing into the channel, each fin member having a conduit formed therethrough;wherein the continuous fiber travels from the continuous fiber supply, through the conduit, and into the product material; andwherein the product material is a polymer or polymer composite material.2. The method of wherein the continuous fiber is placed below an outer surface of the product material.3. The method of wherein each fin member is associated with a different continuous fiber supply.4. The method of further comprising coating the continuous fiber in order to enhance the bond between the continuous fiber and the product material.5. The method of wherein the product material is hollow.6. The method of wherein the plurality of fin members are ...

METHOD AND APPARATUS FOR FORMING TIRE COMPONENTS USING A COEXTRUDED STRIP

One or more embodiments of the present invention provide an apparatus for applying a mixture of a first compound and a second compound, the apparatus comprising a first extruder for processing a first compound and a second extruder for processing a second compound, wherein the outlet from the first extruder is in fluid communication with a first channel of a housing, and the outlet from the second extruder is in fluid communication with a second channel of the housing, wherein a gear pump is positioned in each channel, wherein a nozzle is in fluid communication with an outlet of the first channel and an outlet of the second channel, and a coextruded continuous strip is produced. The ratio of the first compound to the second compound may be adjusted instantaneously. 1. A method for forming a coextruded strip of a first compound A and a second compound B , the method comprising the steps of:extruding a first compound A through a first extruder and a first gear pump and into a first passageway of a co-extrusion nozzle,extruding a second compound B through a second extruder and a second gear pump and into a second passageway of the co-extrusion nozzle,wherein the first and second passageways are joined together immediately upstream of the die outlet of the co-extrusion nozzle.2. The method of wherein the co-extrusion nozzle has an insert which divides the nozzle into a separate first and second passageway.3. The method of wherein the insert has a distal end for positioning adjacent a die outlet of the co-extrusion nozzle claim 2 , wherein the distal end has an elongated flat portion.4. The method of wherein the ratio of the volume of compound A to the volume of compound B is varied by changing the ratio of the speed of the first gear pump to the second gear pump.5. The method of wherein the ratio of the first gear pump to the second gear pump may be varied during operation of the system.6. The method of wherein the insert is removable.7. The method of wherein the insert ...

Film with Layered Segments and Apparatus and Method for Making the Same

A film having first segments and second segments arranged across the film's width direction is disclosed. The first and second segments are separated from each other by polymer interfaces. The first segments include a first polymeric composition and the second segments include a second polymeric composition. At least some of the second segments are layered second segments having first and second layers in the film's thickness direction, and one of the first or second layers includes a third polymeric composition different from the second polymeric composition. An extrusion die useful for making the film and a method for making the film using the extrusion die are also disclosed. 1. An extrusion die comprising at least a first cavity , a second cavity , and a dispensing surface having a dispensing slot ,wherein a first fluid passageway within the extrusion die extends from the first cavity to a first slot segment of the dispensing slot,wherein a second fluid passageway within the extrusion die extends from the second cavity to a second slot segment of the dispensing slot, wherein the second slot segment and first slot segment are arranged side-by-side to provide a combined width; andwherein a third fluid passageway within the extrusion die extends from a die cavity within the extrusion die to the second slot segment, wherein the third fluid passageway meets the second fluid passageway from an area above the second fluid passageway at a point where the second fluid passageway enters the dispensing slot, and wherein the third fluid passageway has a width at a point where it meets the second fluid passageway that is less than the combined width of the first and second slot segments.2. The extrusion die of claim 1 , wherein a fourth fluid passageway within the extrusion die extends from a cavity within the extrusion die to the first slot segment claim 1 , wherein the fourth fluid passageway meets the first fluid passageway from an area above or below the first fluid ...

COMPOSITE LAYER

Composite layer comprising a plurality of first zones of a first polymeric material partially encapsulated in a continuous matrix of a second polymeric material. All first zones of the first polymeric material have an exposed area on only one major surface of the composite layer. 110.-. (canceled)11. A method of making a composite layer comprising a plurality of first zones of a first polymeric material partially encapsulated in a continuous matrix of a second polymeric material , wherein all first zones of the first polymeric material have an exposed area on only one major surface of the composite layer , wherein the first polymeric material comprises first adhesive material , wherein the first polymeric material comprises first adhesive material having a first release , wherein the second polymeric material comprises second adhesive material having a second release with a different release property from the first release , the method comprising:providing an extrusion die, the extrusion die comprising a plurality of shims positioned adjacent to one another, the shims together defining a first cavity, a second cavity, and an die slot, wherein the die slot has a distal opening, wherein each of the plurality of shims defines a portion of the distal opening, wherein at least a first one of the shims provides a conduit between the first cavity and the die slot, wherein at least a second one of the shims provides a conduit between the second cavity and the die slot;supplying a first extrudable polymeric material comprising the first adhesive material into the first cavity;supplying a second extrudable polymeric material comprising the second adhesive material into the second cavity; andextruding the first and second polymeric materials through the die slot and through the distal opening to provide the composite layer.12. The method of claim 11 , wherein the second polymeric material has a major surface on the same major surface of the composite layer as the exposed areas ...

RUBBER EXTRUDING MACHINE AND RUBBER EXTRUDING METHOD

A rubber extruding machine comprises two or more rubber extruders an extrusion head to which the rubber extruders are connected, and a decompression device A pre-former of the extrusion head comprises: rubber flow paths including respective flow paths through which the extruded unvulcanized rubber compounds G pass respectively; a merging position P at which the rubber flow paths are confluent; and a vent channel whose one end communicates with the merging position P and the other end is connected to the decompression device. 1. A rubber extruding machine for extruding a shaped rubber body to have , in its cross section , a plurality of rubber sections , comprising:a plurality of rubber extruders for extruding unvulcanized rubber compounds forming the respective rubber sections,an extrusion head to which the rubber extruders are connected, anda decompression device connected to the extrusion head, whereinthe extrusion head comprises a pre-former into which the extruded unvulcanized rubber compounds are fed so as to be combined and pre-shaped,the pre-former comprisesa plurality of rubber flow paths including respective flow paths through which the above-said extruded unvulcanized rubber compounds pass respectively,a merging position at which the rubber flow paths are confluent, anda vent channel whose one end communicates with the merging position and the other end is connected to the decompression device.2. The rubber extruding machine according to claim 1 , wherein said one end of the vent channel has a slit-shaped opening to the merging position which has a slit width of not more than 0.03 mm.3. A rubber extruding method for extruding a shaped rubber body of which cross section is divided into a plurality of rubber sections claim 1 , comprising a step of extruding the shaped rubber body by the use of the rubber extruding machine according to . The present invention relates to a rubber extruding machine and a rubber extruding method capable of extruding a shaped ...

APPARATUS FOR MANUFACTURING MULTILAYER POLYMERIC FILMS

A feedblock including a first packet creator that forms a first packet including a first plurality of polymeric layers, the first plurality of layers including at least four first individual polymeric layers; and a second packet creator that forms a second packet including a second plurality of polymeric layers, the second plurality of layers including at least four second individual polymeric layers, wherein the first and second packet creators are configured such that, for each packet creator, respective individual polymeric layers of the plurality of polymeric layers are formed at approximately the same time. The feedblock may include a packet combiner that receives and combines the first and second primary packets to form a multilayer stream. In some examples, at least one of the first and second primary packets may be spread in the cross-web direction prior to being combined with one another. 1. A method for manufacturing a multilayer film using an assembly , wherein the assembly includes a primary packet creator section and an extrusion die including a first flow channel and a second flow channel , the method comprising:orienting, via the primary packet creator section, polymeric material to form a first primary packet including a first plurality of polymeric layers stacked on each other and to form a second primary packet including a second plurality of polymeric layers stacked on each other;receiving the first primary packet via the first flow channel, the first primary packet including a first plurality of polymeric layers;receiving the second primary packet via the second flow channel, the second packet including the second plurality of polymeric layers;spreading, via the extrusion die, at least one of the first primary packet and second primary packet in a cross-web direction to an extended width; andcombining, via the extrusion die, the first primary packet and second primary packet with one another after spreading at least one of the first packet and ...

Method and apparatus for extrusion of thermoplastic handrail

A method and apparatus for extrusion of an article is provided. A die assembly can apply flows of thermoplastic material to an array of reinforcing cables to form a composite extrusion. A slider fabric can be bonded to one side of the composite extrusion. After exiting the die assembly, the slider fabric can act to support the extrudate as it passes along an elongate mandrel, which can cause the base of the slider fabric to change shape from a flat profile to the final internal profile of the article. The extruded article can then be cooled to solidify the material. The die can include cooling for the slider fabric and means for promoting penetration of the thermoplastic into reinforcing cables.

DIE DEVICE FOR AN EXTRUSION BLOW-MOULDING APPARATUS FOR PRODUCING A MULTILAYERED BLOWN FILM

The invention relates to a die device () for an extrusion blow-moulding apparatus () for producing a multilayered blown film (), with an inner surface () and an outer surface (), having a die orifice for the discharge of a multilayered material melt (), wherein a temperature-control device () is arranged in order to set a different temperature on the two sides () of the material melt (). The invention also relates to a method for equalizing the differences in viscosity of the materials of the layers () by a controlled () temperature setting. 1. Die device for a blow-moulding apparatus for the production of a multi layered blown film with an inner surface and an outer surface , comprising a die orifice for the outlet of a multi layered material melt ,characterized in thata temperature control device is assembled in order to temperature control both sides of the material melt differently, which correspond with the inner surface and the outer surface of the blown film, wherein the temperature control device is assembled in a die lip about the die orifice.2. Die device according to claim 1 ,characterized in thatthe temperature control device is configured in order to differently cool and/or differently heat the material melt from both sides.3. Die device according to claim 1 ,characterized in thatthe temperature control device is configured for an active temperature controlling of both sides of the material melt.4. Die device according to claim 1 ,characterized in thatthe temperature control device comprises temperature control means which are configured for constant or mainly constant temperature controlling of the respective side of the material melt in circumferential direction, wherein the temperature control means are spread over the circumference of the die orifice.5. Die device according to claim 1 ,characterized in thatthe die orifice is configured as an annular gap in order to act as an outlet for the material melt.6. Die device according to claim 1 , ...

COEXTRUSION ADAPTER

A coextrusion adapter, including a central conduit having an inlet end and an outlet end and having bottom and top walls that define the height of the central conduit and side walls that define the width of the central conduit, as well as at least one coextrusion conduit having an inlet end and an outlet end. The outlet end feeds into the central conduit near or in the vicinity of the bottom and/or top wall thereof, downstream of the inlet end of the central conduit, and adjusting devices are provided, which are allocated to each outlet end of the at least one coextrusion conduit and are composed of a plurality of adjusting elements, which collectively extend across the width of the outlet end and by actuating drives, are adjustable independently of one another so that it is possible to change the inner width of the respective width section of the outlet end. Adjacent to the outlet end at least one of the side walls has a receiving bore into which it is possible to insert a displacing element that protrudes beyond the side wall into the central conduit. 110100101102103101041051011121311012013011212213211212213210102103100101121221321112136112122132711212213211212213210410590910410510. A coextrusion adapter , comprising a central conduit () having an inlet end () and an outlet end () and having bottom and top walls ( , ) that define a height of the central conduit () and side walls ( , ) that define a width of the central conduit () , as well as at least one coextrusion conduit ( , , ) having an inlet end ( , , ) and an outlet end ( , , ); the outlet end ( , , ) feeding into the central conduit () in the vicinity of the bottom and/or the top wall ( , ) thereof , downstream of the inlet end () of the central conduit () , and adjusting devices are allocated to each outlet end ( , , ) of the at least one coextrusion conduit ( , , ) and are of a plurality of adjusting elements () , which collectively extend across the width of the outlet end ( , , ) and by actuating ...

CO-EXTRUDED, MULTI-LAYERED BATTERY SEPARATOR

A battery separator comprises a co-extruded, microporous membrane having at least two layers made of extrudable polymers and having: a uniform thickness defined by a standard deviation of <0.80 microns (μm); or an interply adhesion as defined by a peel strength >60 grams. 1. A battery separator comprising:a co-extruded, microporous membrane having at least two layers made of extrudable polymers and having a uniform thickness defined by a standard deviation of <0.80 μm.2. The battery separator of wherein a thickness of the at least two layers is in the range of 4-125 μm.3. The battery separator of wherein the thickness of the at least two layers is in the range of 4-50 μm.4. The battery separator of wherein an extrudable polymer of one of said at least two layers is the same or different than an extrudable polymer of another of said at least two layers.5. The battery separator according to wherein at least one of said extrudable polymers is a thermoplastic polymer.6. The battery separator according to wherein at least one of said extrudable polymers is selected from the group consisting of: polyolefins claim 1 , polyacetals claim 1 , polyamides claim 1 , polyesters claim 1 , polysulfides claim 1 , polyvinyl alcohols claim 1 , polyvinyl esters claim 1 , polyvinylidenes claim 1 , copolymers of the foregoing claim 1 , and blends thereof.7. The battery separator according to wherein at least one of said extrudable polymers further comprises a material added thereto.8. The battery separator according to wherein said material is selected from the group of materials adapted to do at least one of the following: lower the melting temperature of the extrudable polymers; improve the melt integrity of the membrane; improve the strength of toughness of the membrane; improve the antistatic properties of the membrane; improve the surface wettability of the separator; improve the surface tribology performance of the separator; improve the processing of the extrudable polymers; ...

Dual stage flex lip for an extrusion die

A die includes an upper body member and an adjustment system. The upper body member has a upper surface, a gap surface, a gap edge positioned between the upper surface and the gap surface, and a gap flange. The adjustment system includes an adjustment body that defines a plurality of channels, and a plurality of adjusters. Each of the plurality of adjusters is slideably positioned within a respective one of the plurality of channels. Each of the plurality of adjusters is configured to couple to the gap flange of the upper body member. When the plurality of adjusters are coupled to the gap flange movement of the plurality of adjusters causes a change in a position of the gap edge.

Crosshead die

The invention is directed to a crosshead die for the extrusion of a profile, such as a uniform ply coat for a tire. The crosshead die is used with an extruder, and includes a body. An inlet is formed in the body, and is in fluid communication with the extruder. An outlet and a flow channel are also formed in the body. The flow channel extends between the inlet and the outlet, and is bounded by an upper wall, a lower wall, a first side wall, and a second side wall. The flow channel is formed with a bend and a cross section that includes a trapezoidal shape to align the flow of elastomer with the center of the flow channel.

Process, apparatus and system for creating extruded material having color effects and products made with extruded material created with same

A process and associated system for creating color effects using extrudable material, such as plastic and metal for example, are presented. Flows of first and second viscous materials of respective colors are provided and then combined in a predetermined pattern to form a stream of combined viscous material. A dynamic mixer is the then used to apply a predetermined dividing, overturning and combining motion to the stream of combined viscous material to partially mix the first viscous material and the second viscous material, such that upon exiting the dynamic mixer, the first material of the first color and the second material of the second color form a color pattern in the stream of combined viscous material. The dynamic mixer has elements configured for acquiring a specific radial orientation in a range of radial orientations that may be varied during the application of the dividing, overturning and combining motion to the stream of combined viscous material to cause variations in the color pattern in the stream of combined viscous material. Sheets of extruded material may be created using such process and system and used in the manufacturing of many different products including, but not limited to, kayaks, stand-up paddle boards, garden furniture and many others. In some embodiments, the sheets may be characterized by color bands extending diagonally with reference to a longitudinal extent of the sheet.

Structural Composition and Method

A structural polymeric composite includes a stiffening layer. The composite is made in a continuous extrusion process in which the stiffening layer is pulled through a cross-head die as a polymer is extruded over it. The layer includes a film or textile carrier, a filler of carbon fibers, fiberglass, organic fibers or minerals forming a mat. A binder may be dispersed over the mat and a second carrier applied. The mat is subjected to heat and pressure to soften the carriers and binder so they penetrate into the interstices of the filler and binds mechanically with them and the carriers and binder bind chemically with each other to form the stiffening layer. A polymer is then extruded over the stiffening layer, which may be used flat, provided with holes or punches for composite action with the polymer, formed into a profile, or segmented to provide spaced-apart stiffening layers. 1. A method for making a structural composite , said method comprising the steps of:(a) providing a first carrier;(b) distributing filler onto said first carrier;(c) applying a binding agent onto said filler, said binding agent being chemically compatible with said first carrier;(d) heating said first carrier, said filler and said binding agent;(e) pressing said first carrier, said filler, and said binding agent together, wherein said binding agent liquefies and penetrates into said filler, and wherein said binding agent and said first carrier bind physically with said filler to form a stiffening layer as said first carrier, said filler and said binding agent cool; and(f) extruding a polymer onto said stiffening layer through a cross-head die, wherein said polymer on said stiffening layer, said polymer binding chemically with said stiffening layer, and wherein said cross-head die positions said stiffening layer with respect to said polymer to reinforce said polymer.2. The method of claim 1 , wherein said binding agent is a second carrier.3. The method of claim 1 , wherein said binding agent ...

NETTINGS, DIES, AND METHODS OF MAKING THE SAME

Netting comprising an array of polymeric strands, wherein the polymeric strands are periodically joined together at bond regions throughout the array, with at least two polymeric strands having a different height or color. Nettings described herein have a variety of uses, including wound care, tapes, filtration, absorbent articles, pest control articles, geotextile applications, water/vapor management in clothing, reinforcement for non-woven articles, self bulking articles, floor coverings, grip supports, athletic articles, and pattern coated adhesives. 1. A netting comprising an array of polymeric strands periodically joined together at bond regions throughout the array , and wherein the array comprises a first polymer having a first color and a second polymer having a second color , and wherein the first color is different than the second color.2. The netting of claim 1 , wherein the netting has a thickness of at least 10 micrometers and no greater than 750 micrometers.3. The netting of claim 1 , wherein the netting has a basis weight of at least 10 g/mand no greater than 600 g/m.4. The netting of claim 1 , wherein the polymeric strands do not substantially cross over each other within the array.5. The netting of claim 1 , wherein the first color or second color is selected from the group consisting of white claim 1 , black claim 1 , red claim 1 , pink claim 1 , orange claim 1 , yellow claim 1 , green claim 1 , aqua claim 1 , purple claim 1 , and blue.6. The netting of claim 1 , wherein the array includes a pattern of alternating first and second strands claim 1 , the first polymer defining a first alternating strand and the second polymer defining a second alternating strand.7. A netting comprising an array of polymeric strands periodically joined together at bond regions throughout the array claim 1 , and wherein the array comprises a first polymer having a first color and a second polymer having a second color claim 1 , and wherein the first color is different ...

POLYMERIC NETTING WITH RIBBONS AND STRANDS, AND METHODS OF MAKING THE SAME

Polymeric netting comprising polymeric ribbons and polymeric strands, each of the polymeric ribbons and polymeric strands having a length and a width, wherein the length is the longest dimension and the width is the shortest dimension, wherein a plurality of the polymeric strands are bonded together to form a netting layer, wherein adjacent polymeric strands in the netting layer are bonded intermittently at multiple locations along their respective lengths, wherein the netting layer has first and second opposing major surfaces, wherein the polymeric ribbons have a height-to-width aspect ratio of at least 2:1 and a minor surface defined by their width and length, and wherein the minor surface of a plurality of the polymeric ribbons is bonded to the first major surface of the netting layer. Polymeric netting described herein are useful, for example, in an absorbent article. 1. A polymeric netting comprising polymeric ribbons and polymeric strands , each of the polymeric ribbons and polymeric strands having a length , a width , and a thickness , wherein the length is the longest dimension and the width is the shortest dimension , wherein a plurality of the polymeric strands are bonded together to form a netting layer , wherein adjacent polymeric strands in the netting layer are bonded intermittently at multiple locations along their respective lengths , wherein the netting layer has first and second opposing major surfaces , wherein the polymeric ribbons have a thickness-to-width aspect ratio of at least 2:1 and a minor surface defined by their width and length , and wherein the minor surface of a plurality of the polymeric ribbons is bonded to the first major surface of the netting layer.2. The polymeric netting of claim 1 , wherein each polymeric ribbon is bonded to only one of the polymeric strands.3. The polymeric netting of claim 1 , wherein each polymeric ribbon is intermittently bonded to a strand.4. The polymeric netting of claim 1 , wherein each polymeric ...

WHITE POLYESTER FILM AND METHOD FOR MANUFACTURING SAME, SOLAR CELL BACK SHEET, AND SOLAR CELL MODULE

Provided are a white polyester film including a polyester and white particles having an average primary particle diameter of 0.20 to 0.40 μm, in which a content of the white particles is 1.0% to 5.0% by mass with respect to the total mass of the film, a ratio of agglomerated particles having particle diameters of 0.40 to 0.80 μm in a direction parallel to a surface direction of the film on the cross-section of the film to the total number of primary particles and agglomerated particles of the white particles dispersed in the film is 10% to 20% by number, and a concentration of terminal carboxyl groups is 6 to 30 equivalents/ton, a method for manufacturing the same, a solar cell back sheet, and a solar cell module. 1. A white polyester film comprising:a polyester; andwhite particles having an average primary particle diameter of 0.20 to 0.40 μm,wherein, a content of the white particles is from 1.0% to 5.0% by mass with respect to the total mass of the film,when a cross-section of the film in a thickness direction is observed, a ratio of agglomerated particles having particle diameters of from 0.40 to 0.80 μm in a direction parallel to a surface direction of the film on the cross-section of the film, to a total number of primary particles and agglomerated particles of the white particles dispersed in the film, is from 10% to 20% by number, anda concentration of terminal carboxyl groups is 6 to 30 equivalents/ton.2. The white polyester film according to claim 1 ,wherein a ratio of white particles having primary particle diameters of less than 0.20 μm is 3% by number or less, and a ratio of white particles having primary particle diameters of more than 0.40 μm is 2% by number or less with respect to the total number of the primary particles and agglomerated particles of the white particle in the white polyester film.3. The white polyester film according to claim 1 ,wherein the white particles comprise titanium dioxide particles, the titanium dioxide particles comprising ...

Production of micro- and nano-fibers by continuous microlayer coextrusion

A multilayered polymer composite film includes a first polymer material forming a polymer matrix and a second polymer material coextruded with the first polymer material. The second polymer material forms a plurality of fibers embedded within the polymer matrix. The fibers have a rectangular cross-section.

System and method for creating high gloss plastic items via the use of styrenic copolymers as a coextruded layer

The present techniques provide multi-layer plastic structures and methods for making such. The multi-layer plastic structures include an inner surface made from a polyolefin resin, and resistant to environmental stress cracking, and an outer surface that includes a styrenic copolymer. The outer surface has a kinetic coefficient of friction with itself of 0.42 and a static coefficient of friction with itself of 0.44.

Surface protective film, method for fabricating the same, pouch thereof and method for fabricating the same

Disclosed is a surface protective film, a method for fabricating the same, and pouch, and a method for fabricating the same. The surface protective film includes a stack of films including a middle layer, and a first skin layer and a second skin layer on opposite sides of the middle layer, wherein at least one of the first skin layer and the second skin layer is formed of a resin having a hardness lower than a hardness of a surface to be protected by the surface protective film, and the middle layer is formed of a resin including high density polyethylene, thereby permitting protection of a display surface without formation of scratch at a very low cost compared to the related art without aging and with slip.

Method for manufacturing cpp film with a shock- resisting and heat-resisting, and the cpp film manudactured by the method

The present invention relates to a method for producing a cast polypropylene (CPP) film for food package with impact resistance and heat resistance and a CPP film for food package produced by the method. According to the present invention, the CPP film for food package is produced by fusion-mixing an elastic base resin containing 68-72 wt% of rubber and a base resin containing 18-22 wt% of rubber, and then extruding the same thereafter, thereby having impact resistance and heat resistance. Thus, it is possible to solve a problem in (polypropylene) PP materials which does not stand strong against low-temperature impact as well as polyethylene (PE) materials susceptible to heat.

Structural composition and method

A structural polymeric composite includes a stiffening layer. The composite is made in a continuous extrusion process in which the stiffening layer is pulled through a cross-head die as a polymer is extruded over it. The layer includes a film or textile carrier, a filler of carbon fibers, fiberglass, organic fibers or minerals forming a mat. A binder may be dispersed over the mat and a second carrier applied. The mat is subjected to heat and pressure to soften the carriers and binder so they penetrate into the interstices of the filler and binds mechanically with them and the carriers and binder bind chemically with each other to form the stiffening layer. A polymer is then extruded over the stiffening layer, which may be used flat, provided with holes or punches for composite action with the polymer, formed into a profile, or segmented to provide spaced-apart stiffening layers.

Insulated container and methods of making and assembling

A multi-layer sheet for forming an expanded foam container, the multi-layer sheet including a first layer of an expanded foam material including a first polyolefin-based material including at least one polypropylene-based polymer and a second layer of an unexpected material including a second polyolefin-based material including at least one polypropylene-based polymer that is co-extruded, extrusion coated, or laminated on a first side of the first layer.

System, method and apparatus for producing a multi-layer, microcapillary film

The instant disclosure provides a die assembly for producing microcapillary film. The die assembly is operatively connectable to an extruder having a thermoplastic material passing therethrough. The die assembly includes a pair of die plates, a manifold, and a plurality of nozzles. The manifold is positionable between the pair of die plates and defining a plurality of film channels therebetween. The plurality of film channels converge into an elongate outlet. The thermoplastic material is extrudable through the plurality of film channels and the elongate outlet to form a multi-layer film. The plurality of nozzles are positionable between the plurality of film channels. The plurality of nozzles are operatively connectable to a source of channel fluid for emitting the channel fluid into the thermoplastic materials exiting the die whereby microcapillaries are formed.

Method of co-extruding, co-extrusion die, and extruded articles made therefrom

A die comprising two die cavities, with each capable of supplying polymeric material, and a distribution plate interposed between at least a portion of each of the two die cavities. The distribution plate has a dispensing edge and a plurality of extrusion channels. First and second extrusion channels extend from entrance openings at the first and second die cavities, respectively, to exit openings on the dispensing edge. The exit openings of the first and second extrusion channels are disposed in alternating positions along the dispensing edge. A method of extruding with such a die and an extruded article made therefrom are also disclosed. The method includes co-extruding a first polymeric composition and a second polymeric composition. The extruded article comprises a plurality of longitudinal first stripes of the first polymeric composition alternating with a plurality of longitudinal second stripes of the second polymeric composition.

Extrusion die element, extrusion die and method for making multiple stripe extrudate

Extrusion die ( 30 ) comprising a plurality of shims ( 40 a, 40 b, 40 c ) positioned adjacent to one another, the shims ( 40 a, 40 b, 40 c ) together defining a first cavity, a second cavity, and a die slot, and methods of using the same. A variety of composite layers can be made from various dies described herein.

Film with alternating stripes and strands and apparatus and method for making the same

A film comprising stripes alternating with strands is disclosed. In some embodiments, the strands have a core and a sheath. The core is more elastic than both the sheath and the strands. In some embodiments, the film has an elongation of at least 75 percent, the width of the strands is in a range from 100 micrometers to 750 micrometers, and a portion of each strand forms part of at least one major surface of the film. An extrusion die useful for making the film and a method for making the film using the extrusion die are also disclosed.

Apparatus for extrusion of thermoplastic handrail

A method and apparatus for extrusion of an article is provided. A die assembly can apply flows of thermoplastic material to an array of reinforcing cables to form a composite extrusion. A slider fabric can be bonded to one side of the composite extrusion. After exiting the die assembly, the slider fabric can act to support the extrudate as it passes along an elongate mandrel, which can cause the base of the slider fabric to change shape from a flat profile to the final internal profile of the article. The extruded article can then be cooled to solidify the material. The die can include cooling for the slider fabric and means for promoting penetration of the thermoplastic into reinforcing cables.

Polymeric layers and methods of making the same

제1 주 표면(52, 10111, 11211) 내로 연장되지만, 제2 주 표면(54, 10112, 11212)을 통해서는 연장되지 않는 막힌 개방부(56)들의 어레이를 포함하는 중합체 층(50). 막힌 개방부들은 각각, 제1 주 표면으로부터 제2 주 표면을 향해, 최소 면적에서 최대 면적까지 이르는, 개방부들을 통한 일련의 면적을 가지며, 여기서 적어도 대부분의 막힌 개방부의 경우, 최소 면적이 제1 주 표면에 있지 않다. 제1 주 표면의 적어도 일부분은 제1 재료를 포함하며, 제2 주 표면까지 연장되지만 제2 주 표면 내로는 연장되지 않는다. 제2 주 표면의 적어도 일부분은 제2의 상이한 재료를 포함한다. 중합체 층을 제조하기 위한 방법이 또한 개시된다. 중합체 층은, 예를 들어, 기저귀 및 여성 위생 제품과 같은 개인 케어 의복 내의 구성요소로서 유용하다. 중합체 층은 또한 여과(액체 여과를 포함함) 및 음향 응용에 유용할 수 있다.

Extrusion die for making film, fibers, and nanofibers

An extrusion die includes a die body with two mating die halves, at least one of which is engraved with a die cavity system. The die cavity system includes a melt inlet, a first-stage melt reservoir in fluid communication with the melt inlet, a plurality of melt channels extending from the first-stage melt reservoir, and an extrusion trough in fluid communication with the melt channels and extending across the die half. Multiple stages of reservoirs and channels may be used. The melt channels in each stage have an equal length and cross-sectional area. Some of the melt channels may have a curved portion to maintain an equal length with other melt channels in the same stage. The die halves are secured by a plurality of fasteners. A method for extruding a fluid using the die is also provided. The die may be used to create films or fibers, including nano-fibers.

Separator, method of manufacturing the same and battery using the same

A polyolefin-based porous separator, including a first polyolefin-based porous film on a first surface of a second polyolefin-based porous film, and a third polyolefin-based porous film on a second surface of the second polyolefin-based porous film, each of the first and third polyolefin-based porous films containing inorganic particles having an average particle size of 10 nm to 100 nm, a thickness ratio of the first polyolefin-based porous film, the second polyolefin-based porous film, and the third polyolefin-based porous film being 0.5 to 1.5:1 to 6:0.5 to 1.5, and thermal shrinkage rates of the separator in a machine direction and a transverse direction measured after standing at 120° C. for 1 hour each being 5% or less, and air permeability of the separator being 250 sec/100 cc or less.

Polymeric layers and methods of making the same

Polymeric layers (50) comprising an array of blind openings (56) extending into the first major surface (52, 10111, 11211), but not through the second major surfaces (54, 10112, 11212). The blind openings each have a series of areas through the openings from the first major surface towards the second major surfaces ranging from minimum to maximum areas, where for at least a majority of the blind openings the minimum area is not at the first major surface. At least a portion of the first major surface comprises a first material and extends up to, but not into the second major surface. At least a portion of the second major surface comprises a second, different material. Methods for making the polymeric layers are also disclosed. Polymeric layers are useful, for example, as components in personal care garments such as diapers and feminine hygiene products. They can also be useful for filtering (including liquid filtering) and acoustic applications.

Coextruded foil composite material and its use in card bodies

A composite film material usable in a data carrier card body includes a first outer plastic layer, an inner plastic layer and a second outer plastic layer, all the layers together forming a co-extruded composite. The plastic material of the first outer layer is a polyethylene terephthalate glycol copolymer (PETG) or contains a PETG, the plastic material of the inner layer is a thermoplastic elastomer (TPC) or containes a TPC, and the plastic material of the second outer layer is a PETG or contains a PETG.

Multilayer polyester film with high optical density with a total thickness of max. 60 μm two white layers and a carbon-black containing outer layer

The invention relates to an at least three-layer, biaxially oriented polyester film with a carbon-black-filled outer layer and with two TiO 2 -containing layers, where a TiO 2 -containing layer is also an outer layer and where the thickness of the outer layers is from 4 to 15 μm, the thickness of the base layer is ≧the total of the thicknesses of the outer layers, the white outer layer includes at least 15% by weight of TiO 2 , the base layer includes at least 4% by weight of TiO 2 , the carbon-black-containing outer layer includes from 3 to 15% by weight of carbon black, and the SV value of the film is at least 600, where all % by weight data are based on the weight of the respective layer, and also to a process for the production of this type of film and to the use of the film in particular in blinds, including roller blinds, Venetian blinds, or projection screens, or in displays.

Method for producing an insulating glass pane

The invention relates to a method for producing an insulating glass pane comprising a plastic spacer, wherein two glass panels ( 25, 49 ) arranged parallel to each other have a target distance from each other, by □forming a composite strand ( 26 ) by the temporal and spatial overlapping extrusion of at least two plastic partial strands ( 23, 24 ), wherein a first partial strand ( 23 ) is made of an adhesive first sealing compound ( 3 ), in which a moisture-binding substance is embedded, and a second partial strand ( 24 ) made of an adhesive and binding second sealing compound ( 4 ), a first glass panel ( 25 ) along the edge of the glass panel ( 25 ), specifically such that the beginning and end of the composite strand ( 26 ) abut and form a frame in that the first partial strand ( 23 ) is extruded with a predetermined first target thickness, which is greater than the target distance, and the second partial strand ( 24 ) is extruded with a predetermined second target thickness, which is greater than the target distance, on the glass panel ( 25 ), the partial strands ( 23, 24 ) are located next to each other in the composite strand ( 26 ) and thus immediately adjoin each other, and the first partial strand ( 23 ) is located within the frame formed by the second partial strand ( 24 ), □joining the first glass panel ( 25 ) to the second glass panel ( 49 ) such that the composite strand ( 26 ) is located between both glass panels ( 25, 49 ), connects them to each other, and keeps them at a distance from each other and □setting the target distance by pressing the joined glass panels ( 25, 49 ).

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.

Skinned panel and method of molding thereof

A skinned panel for stably molding a thin skin material and a molding method thereof. An extruding device is configured to extrude a pair of multilayered resin sheets, each of which has a lamination structure of an inner layer made of a foamed resin and an outer layer made of a non-foamed resin that is changed into a skin material of a sandwich panel as a skinned panel. The pair of the resin sheets is abutted to the circumferential part of the pair of the split molds for producing sealed spaces. The sealed spaces are sucked for pressing the pair of the resin sheets onto cavities of the pair of the split molds. Accordingly, the pair of the resin sheets is formed in a shape substantially identical to the outline of the sandwich panel.

Die device for an extrusion blow-moulding apparatus for producing a multilayered blown film

The invention relates to a die device ( 10 ) for an extrusion blow-molding apparatus ( 100 ) for producing a multilayered blown film ( 300 ), with an inner surface ( 310 ) and an outer surface ( 320 ), having a die orifice for the discharge of a multilayered material melt ( 300 ), wherein a temperature-control device ( 30 ) is arranged in order to set a different temperature on the two sides ( 310, 320 ) of the material melt ( 300 ). The invention also relates to a method for equalizing the differences in viscosity of the materials of the layers ( 350 ) by a controlled ( 40, 60 ) temperature setting.

Apparatus and process for producing laminated sheet

There is provided a laminated sheet producing apparatus that adds an edge material to at least one of the end portions in the width direction of a laminate in which a plurality of kinds of sheet materials are laminated as an edge portion at a confluence portion, wherein when an area of each region resulting from division of a cross-sectional configuration of the edge material perpendicular to the flow channel direction of each flow channel at the confluence portion by lines for dividing the configuration into 10 equal portions in the lamination direction is defined as Sn (n=1, 2, 3, 4, 5) in the direction from a central portion in the lamination direction toward an end portion in the lamination direction, the relationships of Formulae (1) S1≦S2≦S3≦S4≦S5 and (2) S1<S5 are simultaneously satisfied.

Method and apparatus for extrusion of thermoplastic handrail

A method and apparatus for extrusion of an article is provided. A die assembly can apply flows of thermoplastic material to an array of reinforcing cables to form a composite extrusion. A slider fabric can be bonded to one side of the composite extrusion. After exiting the die assembly, the slider fabric can act to support the extrudate as it passes along an elongate mandrel, which can cause the base of the slider fabric to change shape from a flat profile to the final internal profile of the article. The extruded article can then be cooled to solidify the material. The die can include cooling for the slider fabric and means for promoting penetration of the thermoplastic into reinforcing cables.

Stiffness enhanced tread element

A tire tread may be formed by simultaneously extruding a tread cap formed of a first material and a tread base formed of a second material having a substantially different stiffness property than the first material. One tread element may have a strip of the second material extending from the tread base into the tread cap and, a second tread element may also have a strip of the second material extending from the tread base into the tread cap.

Radiation pre-crosslinked polyolefin film and preparation method, and related encapsulation method and encapsulation assembly

Radiation pre-crosslinked polyolefin film and preparation method, and related encapsulation method and encapsulation assembly are provided. The radiation pre-crosslinked polyolefin film for encapsulation is prepared by preparing a film after mixing polyolefin raw materials together; using a radiation energy source to irradiate the film, wherein the radiation energy source directly stimulate a crosslinking reaction of the polyolefin raw materials; adjusting an irradiation dosage of the radiation energy source, such that a crosslinking degree of a pre-crosslinked portion of the film reaches about 3 % to about 95%; and adjusting the irradiation dosage of the radiation energy source, such that the pre-crosslinked portion of the film has a thickness of about 5% to about 100% by a total thickness of the film, wherein: that the pre-crosslinked portion has the thickness of about 100% by the total thickness of the film means the film is all pre-crosslinked.

Co-extrusion print head with edge bead reduction

A co-extrusion print head has at least one channel, and a set of orifices fluidically connected to the channel, wherein the set of orifices has at least one orifice at each edge of the set has a smaller vertical extent than the other orifices.

Method and apparatus for making a compartmentalized tire sealant strip

A method for making a compartmentalized sealant strip and barrier assembly 10 has the steps of co-extruding a barrier strip 9 of non-sealant elastomeric material with a plurality of projecting linear extending walls 9 c and a sealant strip 11 wherein the sealant strip 11 is formed on one side of the barrier strip 9 filling the space between the plurality of projecting walls 9 c to form a plurality of linearly extending rows of sealant 11 across the transverse width of the co-extrusion to form the compartmentalized sealant strip and barrier assembly 10 . The step of co-extruding may further include the step of: forming the projecting walls 9 c on an inclined angle relative to a plane perpendicular to the width of the assembly 10 . The step of co-extruding further has the step of forming the barrier strip 9 with lateral edges 9 a and 9 c that extend beyond the lateral outermost sealant strips 11 on each side of the assembly 10 , the lateral edges 9 a, 9 b being bonding surfaces to seal the sealant strip and barrier assembly 10 into an uncured rubber layer when assembled into an unvulcanized tire 2.

Feedblock for manufacturing multilayer polymeric films

A feedblock including a first packet creator that forms a first packet including a first plurality of polymeric layers, the first plurality of layers including at least four first individual polymeric layers; and a second packet creator that forms a second packet including a second plurality of polymeric layers, the second plurality of layers including at least four second individual polymeric layers, wherein the first and second packet creators are configured such that, for each packet creator, respective individual polymeric layers of the plurality of polymeric layers are formed at approximately the same time. The feedblock may include a packet combiner that receives and combines the first and second primary packets to form a multilayer stream. In some examples, at least one of the first and second primary packets may be spread in the cross-web direction prior to being combined with one another.

Coextrusion feedblock, coextrusion profiling insert assembly, and methods of operation

The invention provides a coextrusion feedblock having a flow adjuster, a viscosity compensation device, an actuator, a central extrusion conduit, and a coextrusion conduit. The invention also provides a coextrusion profiling insert assembly constructed to be mounted in a coextrusion feedblock. The insert assembly has a flow adjuster, a viscosity compensation device, and an actuator. The insert assembly when mounted in the feedblock has a coextrusion conduit extending between the flow adjuster and the viscosity compensation device. The actuator is adjustable to apply force to bend the viscosity compensation device and thereby adjust a gap height of the coextrusion conduit. Also provided is a method of operating a feedblock having a viscosity compensation device comprising a flex region, a central extrusion conduit, and a coextrusion conduit. Force is applied to bend the flex region of the viscosity compensation device and thereby adjust a gap height of the coextrusion conduit.

Apparatus for producing laminated fabric ply strips

A cross-head die assembly for use with an extruder is described. The cross-head die assembly includes: an inlet section having an inlet for communicating flow from the extruder to one or more flow channels formed in a support block; and an outlet, a removably mounted die located at the outlet and in fluid communication with the one or more flow channels; said support block further comprising an interior slot extending from a first side of the support block to an outlet passageway; a removable cassette positioned in the interior slot, wherein the front end of the removable cassette is positioned to seal the outlet passageway of the slot so that the slot is isolated from the flow.

Coextruded foil composite material and its use in card bodies

A composite film material usable in a data carrier card body includes a first outer plastic layer, an inner plastic layer and a second outer plastic layer, all the layers together forming a coextruded composite. The plastic material of the first outer layer is a polyethylene terephthalate glycol copolymer (PETG) or contains a PETG, the plastic material of the inner layer is a thermoplastic elastomer (TPC) or contains a TPC, and the plastic material of the second outer layer is a PETG or contains a PETG.

Apparatus for manufacturing multilayer polymeric films

A feedblock including a first packet creator that forms a first packet including a first plurality of polymeric layers, the first plurality of layers including at least four first individual polymeric layers; and a second packet creator that forms a second packet including a second plurality of polymeric layers, the second plurality of layers including at least four second individual polymeric layers, wherein the first and second packet creators are configured such that, for each packet creator, respective individual polymeric layers of the plurality of polymeric layers are formed at approximately the same time. The feedblock may include a packet combiner that receives and combines the first and second primary packets to form a multilayer stream. In some examples, at least one of the first and second primary packets may be spread in the cross-web direction prior to being combined with one another.

Film with oxygen absorbing regions

A packaging material includes an oxygen scavenger material dispersed in bands in a polymer sheet.

Axially oriented confined crystallization multilayer films

A method of forming a confined crystallization multilayer film includes coextruding a plurality of first polymer layers and a plurality of second polymer layer to form a multilayer film wherein each first polymer layer is sandwiched between second polymer layers and axially orienting the multilayer film at a temperature below the melting temperature (T m ) of the second polymer layer and to a thickness such that each first polymer layer forms a high aspect ratio substantially crystalline lamellae.

Forming methods

This invention relates to methods for forming a polymer, including continuously depositing a polymer extrudate that is above its glass transition temperature onto a lower molding surface of a first mold in a manner that reduces shear stress in the polymer extrudate, heating the lower molding surface to maintain the polymer extrudate above the glass transition temperature, applying an upper molding surface of a second mold to at least the exposed upper surface of the polymer, allowing the polymer to transition to below the glass transition temperature while within or between the upper and lower molding surfaces, and providing heat sinks spaced relative to each other through the pressure forming zone, wherein a heat sink more advanced through the pressure forming zone is controlled to a lower temperature to progressively reduce the temperature of the polymer as it advances through the pressure forming zone.

Multilayer bioabsorbable scaffolds and methods of fabricating

A bioabsorbable scaffold composed of a multilayer structure of alternating layers of different polymers is disclosed. The multilayer structure can have 20 to 1000 layers and the individual thickness of the layers can be 0.2 to 5 microns. A method of making the scaffold including a layer multiplying extrusion process is disclosed.

Elevator load bearing assembly having a jacket with multiple polymer compositions

An elevator load bearing assembly ( 30 ) includes a jacket ( 34 ) having different portions comprising different polymer compositions. In a disclosed example, a plurality of tension members ( 32 ) are at least partially surrounded by a first portion ( 36 ) comprising a first polymer composition. A second portion ( 38 ) establishes at least one exterior surface ( 40 ) of the jacket ( 34 ) and comprises a second polymer composition. In one example, a surface-modifying agent is added to alter the composition of at least a portion of the jacket ( 34 ). In another example, co-extrusion techniques using different polymer compositions establish different portions of the jacket ( 34 ).

Multilayer article with variegated appearance

A variegated capstock for covering a substrate for a building product has polymeric streaks in a non-clear, non-opaque matrix. Rapid cooling of the matrix minimizes formation of crystallites, such that the polymeric streaks become visible through a surface of the non-opaque matrix. The streaks are visible by having a color or an index of refraction different from that of the matrix. The matrix is in one or more layers, and the polymeric streaks are in the layers. The substrate is visible through the non-clear, non-opaque matrix and can appear partially obscured by the non-clear, non-opaque matrix.

Multi-laminated body manufacturing method and its manufacturing apparatus, and multi-laminated body

A manufacturing method of a multi-laminated body according to the present invention includes a step 1 (L-flow path) for vertically dividing a laminated flow obtained by arranging at least two molten resins adjacent to each other in a lengthwise direction into two sections, guiding the divided laminated flows to opposite directions relative to the flow direction, and then guiding both laminated flows toward the center of the flow direction, and rearranging the laminated flows adjacent to each other in the horizontal direction and thereby joining the laminated flows together, and a step 2 (R-flow path) for vertically dividing a laminated flow obtained by arranging at least two molten resins adjacent to each other in a lengthwise direction into two sections, guiding the divided laminated flows to directions opposite to the above-mentioned directions relative to the flow direction, and then guiding both laminated flows toward the center of the flow direction, and rearranging the laminated flows adjacent to each other in the horizontal direction and thereby joining the laminated flows together, in which the step 1 (L-flow path) and the step 1 (R-flow path) are alternately repeated in this listed order, and a number of the steps to be performed is at least three. According to this method, it is possible to prevent the layer disappearance at both ends, prevent the layer thickness variations or the disruption in the lengthwise arrangement, and thereby manufacture a multi-laminated body having a more excellent uniformity.

Film with oxygen absorbing regions

A packaging material includes an oxygen scavenger material dispersed in bands in a polymer sheet.