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8178210 |
Multilayer oriented high-modulus film
The invention relates to a high modulus, bi-axially oriented film, heat-shrinkable or non heatshrinkable, comprising a first outer layer comprising a polyester or a copolyester, a second outer...
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8153044 |
Heat treatment of thermoplastic film, and thermoplastic film and method for producing the same
A thermoplastic film is transversely stretched, and then transported in a heat-treating zone (46) such that the ratio (G/D) of an inter-roll distance (G) to a roll lap length (D) is 0.01 to 3, and...
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7887727 |
Preparing method of microporous polyolefin film through effective extrusion
The present invention relates to a process for manufacturing a microporous polyolefin film which can be used for various battery separators, separating filters and membranes for microfiltration....
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7879272 |
Oriented thermoplastic elastomer film and process for producing the same
An oriented thermoplastic elastomer film having reduced permeability and improved fatigue resistance comprising a dynamically vulcanized polymer blend of (A) a halogenated isobutylene elastomer and...
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7815825 |
Microporous polyolefin membrane, and method of producing the same
The present invention provides a microporous polyolefin membrane of high permeability and novel structure, and also provides a method of producing the same, wherein its average pore size is...
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7744806 |
Process for making shrink film comprising rapidly-quenched semi-crystalline polyamide
As a first aspect, the present invention is directed to a process for making a heat-shrinkable annular film, comprising: (A) extruding an annular extrudate downward from an annular die; (B)...
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7718104 |
Process for the production of brittle polymeric film
A process for the production of a polymeric film comprising a copolyester having an acid component and a diol component, said acid component comprising a dicarboxylic acid and a sulfomonomer...
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7615183 |
Polylactic acid blown film and method of manufacturing same
The invention provides polylactic acid (PLA) films substantially free of plasticizers and methods of manufacturing same by blown film process are provided. PLA films are environmentally degradable...
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7364659 |
Preparation of asymmetric polyethylene hollow fiber membrane
A porous polyethylene hollow fiber membrane having a pore-size gradient across the inner and outer surfaces thereof is prepared by introducing, during the cooling step of a melt-spun polyethylene...
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7229581 |
Process for producing a thermoplastic film using plastic bottle recyclate
Invention relates to a process for producing a single-layer or multilayer film by extrusion or coextrusion, biaxial orientation, and heat setting based on crystallizable thermoplastics whose...
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7214339 |
Polyester film and a production method thereof
The object of the present invention is to provide a method for producing a polyester film excellent in rigidity, toughness, dimensional stability, electric properties, etc. and less in thickness...
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7189347 |
Laminated biaxially-oriented polyamide film and process for producing the same
A biaxially oriented polyamide laminate film having a layered structure of A/B, A/B/A or A/B/C, layer A having no projections with a height of 0.27 μm or higher on the surface, or having a density ...
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7037461 |
Method of stretching film
A method of stretching films in which all or a portion of the width of the film is cooled during or just after stretching so as to improve the uniformity of the film. The includes stretching a...
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7001557 |
Biaxially oriented polyester film, and a production method thereof
An object of the present invention is to provide a biaxially oriented high quality polyester film excellent in thermal dimensional stability and clarity and also excellent in productivity, and also...
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6966999 |
Oriented thermoplastic vulcanizate
Oriented films are prepared. A thermoplastic vulcanizate, prepared by mixing at least 20 wt % of a thermoset rubber by weight of the total composition into a thermoplastic polymer are disclosed....
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6942831 |
Process for rapid annealing of a polyester film base to control film curl
A high-CHDM PET-based support for an imaging element can be annealed relatively rapidly to achieve acceptable core-set and post-process curl properties. The fast annealing response of this material...
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6919112 |
Polyamide-based sausage skin which can be filled manually
The invention concerns a biaxially stretched and thermoset tubular seamless single- or multi-layered foodstuff skin wherein the layer, or, a multi-layered skin wherein at least one of the layers,...
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6824878 |
Method for preparing sealable films with siloxane additives
A thermoplastic film comprising a core layer comprising a polyolefin wherein the core layer comprises the interior of the film; a first transition layer comprising a polyolefin and a silicone...
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6780371 |
Process for inline producing biaxially oriented releasing film
There is disclosed a process for inline producing a biaxially oriented releasing film by consecutively orienting a non oriented film (polyethylene terephthalate or polypropylene) in the machine or...
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6749785 |
Multilayer structures of poly(1,3-propylene 2,6 napthalate) and poly (ethylene terephthalate)
Multilayer shaped articles, including films, preforms and containers, and method for forming the same, having at least one layer of poly(1,3-propylene 2,6-naphthalate) and at least one layer of...
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6699418 |
Method for producing biaxially stretched film made of ethylene-vinyl alcohol copolymer
A method for producing a biaxially stretched film is provided, in which the method comprises, stretching a film made mainly of an ethylene-vinyl alcohol copolymer having an ethylene content of 15...
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6696146 |
Mono-or biaxially-stretched polyester resin foamed sheets and films
Mono- or biaxially-stretched polyester resin foamed sheets and films wherein the polyester resin has a melt strength of more than 1 centinewton at 280° C., a melt viscosity of at least 1500 Pa.s ...
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6685871 |
Toughened biaxially oriented film
Toughened biaxially oriented polyamide films prepared by dry blending i) a polyamide homopolymer, copolymer, or blends thereof; and ii) a functionalized polyolefin terpolymer comprising maleic...
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6638988 |
Porous film, separator for cell, and cell
A porous thermoplastic resin film capable of functioning well as a separator of a cell is provided. The porous film is constituted with a thermoplastic resin and a filler, wherein XR defined by the...
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6623679 |
Method of controlling width of polyester film support
A method for controlling the width of a polyester film support comprising, in order, the steps of: (a) extruding a polyester resin using one or more extruders; (b) casting the resin on a casting...
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6566012 |
Polyolefin microporous film and method for preparing the same
It is an object of the present invention to provide a microporous polyolefin membrane, high in pin puncture strength, adequate in pore diameter and high in porosity, comprising (A) an...
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6562274 |
Process of making biaxially oriented polyester films
A biaxially oriented polyester film that is 7.0 GPa or more in either the Young's modulus in the machine direction (YmMD) or in the transverse direction (YmTD), and in the range of 55° or more and ...
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6478999 |
Process of making adhesive tape
A manufacturing method of adhesive tape, by preparing a raw material of a biaxially or non-drawn, film or sheet on the back surface of which a release agent has been applied and to the which an...
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6395209 |
Deposited plastic film
The present invention relates to a deposited plastic film comprising: a deposited plastic film comprising:a plastic film;a coating layer which is formed on at least one surface of said plastic film...
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6368532 |
Method of producing biaxially stretched polyester film
The present invention improves the bowing phenomenon of a biaxially stretched polyester film which comprises stretching the longitudinally stretched cast film laterally at a temperature higher than...
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6245270 |
Process for the production of porous polyolefin
A polyolefin porous material is produced by synthesizing silica particles, polysiloxane particles or crosslinked vinyl polymer particles having an average particle diameter of 0.01 to 0.1 μm in a ...
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6221301 |
Method of producing thermoplastic resin films and apparatus for producing the same
Method and apparatus for producing thermoplastic resin film which allows a biaxially oriented polyester film to be formed at a high speed of 400 m/min or more. In the method, a molten thermoplastic...
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6132668 |
Biaxially oriented ordered polymer films
This invention relates in general to the formation of thick films having a biaxial molecular orientation. Such films are prepared in accordance with the present invention from rod-like extended...
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6033514 |
Biaxially-oriented polypropylene films
A biaxially-oriented polypropylene (BOPP) film with improved barrier properties, and a method of making the film are provided. The MVTR of a multi-layer BOPP film is improved by blending wax in the...
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5939205 |
Gas barrier resin film
A gas barrier film comprising a polyamide film and an inorganic deposited layer laminated thereon, wherein the maximum shrinkage percentage after boiling treatment at 95° C. for 30 minutes is not ...
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5925305 |
Oriented film easy to split and method of producing the same
An oriented splittable film which contains nylon and meta-xylylene adipamide at a weight ratio of 40-85:15-60 and which was oriented with a magnification above 2.8 times in both directions of MD...
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5910277 |
Process of making a porous PTFE membrane
A fine powder of polytetrafluoroethylene is mixed with a liquid lubricant, and the mixture is molded into an unsintered sheet by at least one of an extrusion method and a rolling method. The liquid...
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5891376 |
Film process
A controlled permeability film and process for producing same wherein the film includes: a film forming polyolefin polymer; and an inert porous filler in an amount effective to reduce the ratio of...
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5885501 |
Process for preparing dimensionally stabilized biaxially stretched thermoplastic film
An improved process for preparing a biaxially stretched thermoplastic film, such as polyethylene naphthalate (PEN) or polyethylene terephthalate (PET) film, having low thermal shrinkages by...
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5858505 |
Macroscopically perforated porous polytetrafluoroethylene materials
A macroscopically perforated porous expanded polytetrafluoroethylene sheet material having a microstructure of nodes interconnected by fibrils wherein the perforations have a minimum diameter of...
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5853638 |
Process for producing stretched porous film
A process for producing a porous film, which includes melt-molding a composition prepared by compounding 100 parts by weight of a polyethylene resin mixture of low density polyethylene, linear low...
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5843358 |
Process for producing a steam-sterilizable porous polyolefin membrane and polyethylene membrane steam-sterlizable at 134° C.
Process for producing a steam-sterilizable porous polyolefin membrane with a porosity of at least 20% and a shrinkage of 4% at most in every direction in the plane of the membrane in steam...
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5834528 |
Polytetrafluoroethylene porous composite film
An object is to provide a polytetrafluoroethylene (PTFE) porous composite film which has substantially no defect portion.There is provided the PTFE porous composite film by stretching a composite...
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5833904 |
Process for the production of biaxially stretched films and apparatus for carrying out the process
In a for the production of biaxially stretched films, a take-off roll 4 is arranged downstream of a draw-off roll 3 . A plastic melt is formed into an initial film by means of a slot die 1, cooled...
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5811185 |
Low temperature heat sealable biaxially oriented polypropylene films comprising propylene/butylene resin
This invention provides a polyolefinic multilayer film which has a base layer containing polypropylene and at least one outer layer. The outer layer contains at least 50% by weight of a...
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5804119 |
Process for producing biaxially oriented polyester film as a base film for a photographic film
A process for producing a biaxially oriented polyester film including the steps of causing a molten aromatic polyester which contains naphthalene-2,6-dicarboxylatic acid as a main dicarboxylic acid...
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5773059 |
Polyamide-based sausage casing
A polyamide-based sausage casing of a polymer blend comprising a) nylon 6, b) 5-50% by weight, based on the total weight of all polymers in the layer, of a b1) aliphatic copolyamide containing...
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5759467 |
Method for making multilayer polyester film
A multilayer polyester film, and a method for making the same, is provided. The film consists of alternating layers of polyethylene terephthalate and polyethylene naphthalate. Biaxial orientation...
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5753172 |
Film bead heating for simultaneous stretching
An improved process for simultaneous biaxial stretching of a thermoplastic polymer film having beaded edges in a tenter frame consisting of gripping the beaded edges of the film with tenter clips...
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5741601 |
Polyamide film and process for producing the same
A polyamide film having been drawn at a draw ratio of 2 or more in at least one direction, which comprises a polyamide resin composition comprising from 90 to 99.99% by weight of a polyamide and...
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