Next To Polyene Polymer Patents (Class 428/517)
  • Patent number: 6605342
    Abstract: A label for a container has a transparent first foil (2) consisting of a transparent nonslip material (4), which can be a thermoplastic elastomer, a transparent second foil (3) consisting of a transparent material (5) with tensile strength, such as polypropylene, and an adhesive layer (9). The second foil (3) is arranged between the first foil (2) and the adhesive layer. The second foil (3) is provided with an imprint (17.3) on a side facing the adhesive layer (9) and the imprint (17.3) is embedded in the adhesive layer. In another embodiment the label includes a transparent foil (21), which is made of a transparent material (24) with tensile strength, a nonslip coating (22) on a first side (34). The coating (22) is preferably a lacquer coating (23). These labels provide a nonslip gripping surface on a container and are dimension stable, which facilities imprinting.
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: August 12, 2003
    Assignee: Wella AG
    Inventors: Johannes Burghaus, Gernot Mecks, Martina Schmitt
  • Publication number: 20030129373
    Abstract: A multilayer white opaque plastic film, heat-sealable on one or two sides, suitable for packaging uses. The multilayer film includes a cavitated core layer of polypropylene, a top intermediate tie-layer of polypropylene with interspersed titanium dioxide, a bottom intermediate tie-layer of polypropylene, a top and a bottom skin layer. The top skin layer is formed from a polylefin terpolymer or polypropylene. The top skin layer may include silicon dioxide and an antiblock agent, and optionally may be corona treated. The bottom skin layer is formed from a polylefin terpolymer, and may also include silicon dioxide and one or more antiblock or slip agents.
    Type: Application
    Filed: December 31, 2002
    Publication date: July 10, 2003
    Inventors: Robert A. Migliorini, Jay K. Keung, Karen B. Perez, Scott P. Wilkins
  • Patent number: 6589664
    Abstract: The present invention relates to a laminate comprising an olefinic thermoplastic elastomer which comprises: (a) a substratum layer comprising an olefinic thermoplastic elastomer composition (A) having the following characteristics {circle around (1)} to {circle around (3)}: {circle around (1)} 9≦Y−0.43X≦27  (1)  wherein X denotes the JIS A-hardness value (a dimensionless value) of the olefinic thermoplastic elastomer composition determined according to the prescription of JIS K6301 and Y represents the compression set value (expressed by %) of the olefinic thermoplastic elastomer composition determined according to the prescription of JIS K6301 under a condition of 70° C.
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: July 8, 2003
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Kyoko Kobayashi, Noboru Sakamaki, Akira Uchiyama
  • Patent number: 6586061
    Abstract: A multi-layer film contains at least a first layer, a second layer inside thereof, and a third layer inside the second layer. The first layer contains a polypropylene resin (PP). The second layer contains a polyethylene resin (PE) having 70 to 90 wt% of a lower crystalline component (LCC) and 10 to 30 wt% of a higher crystalline component (HCC). The PE has a melt flow rate of 0.1 to 20 g/10 min and in a temperature rising elution fraction elution curve, an elution peak temperature of the LCC is from 45 to 85° C; the ratio of (peak height of LCC)/(height of the minimum valley between LCC peak and HCC peak) is 9 or more; an area ratio of the elution peak temperature or less of LCC is 35% or more. The third layer contains a) PP or b) a high-pressure low density PE having an extrapolation melting completion temperature of melting of 110° C or more; or c) a copolymer of ethylene/C3-18 &agr;-olefin having a density of 0.920 g/cm3 or more.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: July 1, 2003
    Assignee: Japan Polychem Corporation
    Inventors: Yoshihiko Sasaki, Kazutoshi Takenaka
  • Patent number: 6582786
    Abstract: Described is a membrane comprising a microlayer polymeric composite having at least about 10 microlayers. The microlayers are each individually up to about 100 microns thick and alternate between at least one fluid barrier material and at least one elastomeric material. The membrane can be formed into a pressurized bladder or cushioning device for many applications, including footwear and hydropneumatic accumulators.
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: June 24, 2003
    Assignee: Nike, Inc.
    Inventors: Henry W. Bonk, David J. Goldwasser, Paul H. Mitchell
  • Publication number: 20030113535
    Abstract: This invention relates to a die-cuttable, biaxially stretch-oriented monolayer film comprising a polyethylene having a density of about 0.940 g/cm3 or less, a propylene polymer or copolymer, or mixtures thereof, wherein the tensile modulus of the film in the machine direction is greater than the tensile modulus in the cross direction, the tensile modulus of the film in the cross direction is about 150,000 psi or less, and the film is free of copolymers of ethylene with an ethylenically unsaturated carboxylic acid or ester. Die-cuttable, stretch-oriented multilayer films also are described comprising the above films as a base layer, and a thermoplastic polymer skin layer bonded to the upper surface of the base layer. The biaxially oriented monolayer and multilayer films are useful in particular in preparing adhesive containing labelstock for use in adhesive labels.
    Type: Application
    Filed: September 6, 2002
    Publication date: June 19, 2003
    Inventors: Edward I. Sun, Ramin Heydarpour, Karl Josephy, Johannes Schut, Eng-Pi Chang, Yao-Feng Wang
  • Patent number: 6579584
    Abstract: An article, such a bag, pouch, casing, or sheet formed from joined film pieces, comprises a non-crosslaminated film. The article has a parallel plate burst strength of at least 190 inches of water, with the film having a thickness of from 1 to 2.9 mils. The film comprises one or more of a wide variety of polymers, with linear low density polyethylene being a preferred polymer. The film is heat sealed to itself or another film (preferably a similar or identical film). The burst strength is surprising in view of the thin gauge of the film, and the fact that the film is not cross-laminated.
    Type: Grant
    Filed: December 10, 1998
    Date of Patent: June 17, 2003
    Assignee: Cryovac, Inc.
    Inventor: Stephen F. Compton
  • Patent number: 6579583
    Abstract: The invention provides a flexible plastic formulation capable of being extruded, blow-molded, ethylene oxide and radiation sterilized. The plastic formulation of the invention comprises: a) from about 60 to about 94 percent by weight of a copolymer consisting essentially of ethylene and vinyl acetate units; b) from about 5 to about 25 percent by weight of a block copolymer, the block copolymer consisting essentially of a central block copolymer molecule including generally equal proportions of ethylene and butylene units, and terminal blocks of polystyrene; and c) from about 1 to about 15 percent by weight of an ultra-low density polyethylene material. The plastic formulations of the invention are useful in the manufacture of blood bags, tubing and the like.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: June 17, 2003
    Assignee: Baxter International Inc.
    Inventor: Indrajit Patel
  • Patent number: 6576337
    Abstract: A flexible rubber article such as a neck or cuff seal (1) for a drysuit is made of natural rubber in a conventional way, by dipping a former into a sensitized rubber latex. The application describes applying a thin thermoplastics layer e.g. about 25 &mgr;m thick on the surface of the natural rubber so that it can conveniently be welded to another thermoplastics component such as a hot-melt tape. The thermoplastics layer (4,5) may cover the whole or only a marginal part of the rubber article. It may be formed by dipping into a thermoplastics latex. The thermoplastics layer may cover the whole or only a margin of the rubber article. Polyurethane is one suitable material. By providing a non-tacky weldable region the invention is more convenient to use than previous proposals using adhesives.
    Type: Grant
    Filed: July 27, 2000
    Date of Patent: June 10, 2003
    Assignee: Precision Dippings Marketing Limited
    Inventor: Colin Nigel Radford-Hancock
  • Publication number: 20030096129
    Abstract: An air duct used for blowing air through a ceiling segment for air conditioning of an automobile in which the duct is comprised of a base material showing a superior leakage prohibiting characteristic, a high extension rate at the time of molding operation and facilitating a deep grave molding or forming operation. An automobile air duct is manufactured by applying a molding or forming member having three-layer complex plastic sheet materials having formed of an expanded polypropylene sheet and mica-containing polypropylene sheets stacked on both sides thereof.
    Type: Application
    Filed: November 5, 2002
    Publication date: May 22, 2003
    Applicant: OJI Interpack Co., Ltd.
    Inventor: Akihiko Kojima
  • Patent number: 6565986
    Abstract: An olefinic thermoplastic elastomer capable of producing a sheet applicable for preparing a covering skin sheet for interior furnishings in automobile superior in the formability, heat resistance, mechnical properties, tensile characteristics, strain restorability and repulsive elasticity together with superior grain retention performance upon a male vacuum forming of the sheet, the said olefinic thermoplastic elastomer comprising an olefinic resin and an olefinic copolymer rubber and having a characteristic feature that it satisfies, when a grained sheet made of the said elatomer is subjected to a male vacuum forming at least at a point of sheet temperature within the range of 130-150° C., the condition that the grain retention rate expressed by the proportion of the grain depth of the sheet retained after the male vacuum forming relative to the grain depth before the male vacuum forming represented by percent meets the relation defined by the following equation (1) % retention of grain≧100−2.
    Type: Grant
    Filed: October 16, 2002
    Date of Patent: May 20, 2003
    Assignee: Mitsui Chemicals, Inc.
    Inventor: Yuichi Itoh
  • Patent number: 6555240
    Abstract: A film laminate for printing comprises a polyolefin film in which at least one side is surface-modified and an anchor layer formed on the surface-modified side of the polyolefin film and containing an oxazoline group-modified resin. The film laminate is prepared by subjecting at least one side of a longitudinally oriented polyolefin film to a corona discharge treatment, forming an ethylene-acrylic acid type copolymer layer on the corona discharge-treated side of the film, laterally orienting the film, and then forming an anchor layer comprising a binder resin, and an oxazoline group-modified resin, on the modified surface of the surface-modified polyolefin film subjected to the corona discharge treatment. The film laminate for printing is excellent in its transparency and it is also excellent in the adhesion to a coated layer.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: April 29, 2003
    Assignee: Oji Paper Co., Ltd.
    Inventors: Yoshiharu Nishikori, Koichi Katayama, Yuichi Ogawa, Noboru Sakaushi
  • Publication number: 20030072957
    Abstract: A polyolefin multilayer film containing a polyolefinic core layer and a first polyolefin skin layer of a blend, wherein the first polyolefin skin layer does not contain a thermoplastic or natural rubber and provides a cold seal receptive surface for a cold seal adhesive is disclosed. The blend includes an ethylene propylene random copolymer at 50-90 wt. % of the skin layer and metallocene catalyzed plastomer at 10-50% wt. % of the skin layer, a metallocene catalyzed isotactic polypropylene polymer or a butene propylene copolymer that contains from 5 wt % to 22 wt % of butene.
    Type: Application
    Filed: October 15, 2002
    Publication date: April 17, 2003
    Inventors: Mark S. Lee, Leo Moreau, Kevin Kitchin
  • Patent number: 6543785
    Abstract: A packing structure has a core element of a material having a high fluid impermeability, and a thin coated rubber layer formed thereon to cover at least its sealing surface and having a glass transition temperature which is lower than the lowest temperature allowable for the packing structure. It shows a high sealing property even at a low temperature and a high fluid impermeability when used for sealing e.g. a pipeline for conveying fuel in a motor vehicle.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: April 8, 2003
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Kazutaka Katayama, Hidehito Ikeda, Tetsuji Narasaki, Koji Senda
  • Patent number: 6543199
    Abstract: A method is disclosed for covering a roof with seamable sheet material for roofing prepared from a polymeric composition of matter comprising the steps of: applying layers of sheet material prepared from a seamable polymeric composition of matter to the roof being covered, overlapping adjacent edges of said layers, and adhering the overlapped areas to provide an acceptable seam strength; wherein the composition of matter comprises an interpolymer of ethylene, propylene, and at least two nonconjugated dienes, each having one reactive double bond.
    Type: Grant
    Filed: November 10, 2000
    Date of Patent: April 8, 2003
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Richard W. Tomlinson, Thomas L. Jablonowski
  • Patent number: 6536177
    Abstract: A novel composition of a materials that can be extruded into sheets to form panels to create a roofing system wherein the panels are formed to interlock with like panels in order to provide a substantially weatherproof covering on a roof. The sheet member has a top layer made of ASA (Acrylonitrile/Styrene/Acrylate polymer) and a bottom layer made of PVC (Polyvinylchloride). The two layers are extruded and bonded or preferably coextruded. Then the bonded materials are thermoformed to resemble more popular types of roof coverings such as shake or shingles or tiles.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: March 25, 2003
    Inventors: Frank Lane Italiane, Joseph Sciarra, III
  • Publication number: 20030055191
    Abstract: A sealant resin composition comprises 60 to 95 weight percent of ethylene polymer (PE) and 5 to 40 weight percent of 1-butene polymer (PB), wherein a melt flow rate (MFR) ratio between the two polymers (MFRPE/MFRPB) is not less than 1. A laminated film obtained by extrusion laminating the resin composition as a sealant film layer over a substrate film adheres tightly to other plastic film by heat sealing and gives a low degree of dependence of heat seal strength on temperature in the heat sealing stage. At the same time the laminated film has an easy peel feature, such that it is readily separated from sealed surfaces after heat sealing, and does not develop any phenomenon of resin threading from the sealed surfaces when they are peeled apart. Accordingly the resin composition is suitably used for the food packaging material.
    Type: Application
    Filed: April 17, 2002
    Publication date: March 20, 2003
    Inventor: Naoto Yasaka
  • Publication number: 20030055149
    Abstract: A cationically stabilized emulsion polymer is disclosed which comprises a combination of at least one polymerizable monomer which is uncharged or positively charged in an aqueous solution having a pH between 1 and 8, polymerized in the presence of at least one water-soluble polymer having a number-average molecular weight greater than 5000 which comprises a moiety selected from the group consisting of primary amines, secondary amines, tertiary amines and quaternary ammonium salts. Coating compositions containing the cationically stabilized emulsion polymer and plastic films thus coated are also disclosed.
    Type: Application
    Filed: May 24, 2001
    Publication date: March 20, 2003
    Inventor: Dennis E. McGee
  • Patent number: 6528173
    Abstract: A multilayered film exhibiting good transparency, welding resistance, puncture resistance and impact strength having an outer layer selected from the group consisting of: (1) homopolymers of polypropylene, (2) ethylene/propylene copolymers and (3) blends of (a) high density polyethylene and (b) propylene and ethylene block copolymers; an inner layer of a different composition from the outer layer and selected from the group consisting of ethylene and &agr;-olefin copolymers, and ethylene and &agr;-olefin copolymers blended with low density polyethylene; and a complex intermediate layer joining the outer layer to the inner layer, the complex intermediate layer having a plurality of sublayers defining an upper nucleus B1, a core B2 and a lower nucleus B3, the upper nucleus being a propylene and ethylene copolymer and the lower nucleus being an ethylene copolymer with an ethylene content greater than the upper nucleus.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: March 4, 2003
    Assignee: Baxter International Inc.
    Inventors: Pierpaolo Buzio, Italo Incollingo
  • Publication number: 20030039854
    Abstract: Copolymeric binders for use in paperboard-coating compositions are provided, which exhibit lower gel content than the latices employed in conventional paperboard-coating compositions. Paperboard-coating compositions incorporating the copolymeric binders of the present invention exhibit improved glueability. More specifically, paperboard coated with the composition of the present invention requires less time to develop backside fiber tear in comparison to conventional paperboard, at no sacrifice to the remaining paperboard properties.
    Type: Application
    Filed: August 15, 2001
    Publication date: February 27, 2003
    Inventors: Michael J. Drewery, Ralph Lewis De Jong
  • Publication number: 20030035946
    Abstract: The present invention provides a cover tape for packaging electronic components, which can prevent troubles associated with the peeling strength or appearing during mounting of the electronic components, which can be produced at a low cost, and which is transparent; that is, a cover tape which has a peeling strength not too high and not too low and small in difference between the maximum value and the minimum value and which has high transparency. Specifically, the present invention provides a cover tape for packaging electronic components, which can be heat-sealed to a plastic-made carrier tape having pockets capable of storing electronic components, formed regularly therein and which comprises (A) a biaxially oriented film layer made of a polyester, a polypropylene or a nylon and (B) a thermoplastic resin layer composed of 100 parts by weight of an ethylene copolymer and 10 to 100 parts by weight of a polystyrene, laminated to one side of the layer A.
    Type: Application
    Filed: June 26, 2002
    Publication date: February 20, 2003
    Inventors: Hisao Nakanishi, Masayuki Hiramatsu
  • Publication number: 20030035974
    Abstract: A method of producing a rubber-resin composite whose vulcanized rubber and thermoplastic resin moldings are bonded together by high adhesive strength at low cost, satisfying both moldability and mechanical strength. It comprises: (1) making the vulcanized rubber molding by vulcanization molding, (2) forming an adhesive layer, whose principal ingredient is chlorosulfonated polyethylene, on a surface of the rubber molding to be bonded to the resin, and (3) while arranging the rubber molding in a mold, pouring the thermoplastic resin containing 30˜60 wt. % of glass fiber in a molten state into the mold to form the resin molding.
    Type: Application
    Filed: December 7, 2001
    Publication date: February 20, 2003
    Inventors: Atsushi Kazuno, Masashi Moriyama, Toshiya Tsujimoto, Hirokazu Masui
  • Patent number: 6521306
    Abstract: The invention includes a process of preparing a coupled polymer characterized by heating an admixture containing (1) at least one ethylene polymer or blend of ethylene polymers having a density of at least about 0.89 g/mL and less than about 0.935 g/mL and a comonomer content between about 0.5 and 50 weight percent of an alpha olefin having greater than 2 and less than 20 carbon atoms per molecule and (2) a coupling amount of at least one poly(sulfonyl azide) to at least the decomposition temperature of the poly(sulfonyl azide) for a period sufficient for decomposition of at least about 80 weight percent of the poly(sulfonyl azide) and sufficient to result in a coupled polymer. The amount of poly(sulfonyl azide) is preferably from about 0.01 to about 5 weight percent of polymers in the admixture. The invention also includes any composition which is the product of any of the processes of the invention and articles made from those compositions, particularly any film of any composition of the invention.
    Type: Grant
    Filed: August 5, 1998
    Date of Patent: February 18, 2003
    Assignee: Dow Global Technologies Inc.
    Inventors: Wendy D. Hoenig, Teresa Karjala, Li-Min Tau, Clark H. Cummins, Michael J. Mullins, H. Craig Silvis, Thoi H. Ho
  • Patent number: 6517936
    Abstract: A stretch film heat-sealable to polystyrene-based material comprising a first outer heat-sealing layer, a second outer layer and at least an intermediate layer, comprising in the first outer heat-sealing layer a TPE-S such as a styrene-butadiene-styrene block terpolymer (SBS) or a hydrogenated derivative thereof. Also described are packages made with the new stretch film.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: February 11, 2003
    Assignee: Cryovac, Inc.
    Inventors: Paolo Ciocca, Roberto Forloni, Isabella Ferri
  • Patent number: 6517950
    Abstract: A multilayer film has a first outer layer, an inner layer, and a second outer layer. The first outer layer comprises a homogeneous ethylene/alpha-olefin copolymer. The inner layer comprises a thermoplastic elastomer. The second outer layer comprises a second ethylene/alpha-olefin copolymer. The inner layer is between the first outer layer and the second outer layer, and is chemically different from the first outer layer and the second outer layer. The multilayer film has an O2-transmission rate of from about 500 to 50,000 cc/m2 24 hr STP, and a modulus of at least 60,000 psi. The multilayer film is especially useful for the packaging of O2-sensitive products, such as produce. The high modulus of the film enhances its performance in form-fill-and-seal operations.
    Type: Grant
    Filed: August 13, 1999
    Date of Patent: February 11, 2003
    Assignee: Cryovac, Inc.
    Inventors: Ray Ernest Patrick, Mendy Joyce Walden
  • Publication number: 20030022010
    Abstract: The present invention discloses methods of controlling the puncturability, and optionally the sealability (the ability of a film to conform around a puncturing object) and resealability (the ability of a film to close a hole made by a puncturing object), of polymeric films. Systems comprising a film and puncturing object are also disclosed.
    Type: Application
    Filed: May 2, 2001
    Publication date: January 30, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Gerald Steven Deeb, Douglas Adelbert Devens, Dennis Louis Krueger, Marcia Christine Nichols
  • Patent number: 6511723
    Abstract: A multilayer structure, for a re-closable packaging which can be readily and effectively opened and then re-sealed is provided comprising a central pressure-sensitive adhesive layer and two outer layers, one of which is a tearable welding layer, the central adhesive layer comprising two sub-layers and the structure being able to be obtained by collapsing the co-extrusion bubble, together with a packaging comprising at least one tearable film having this symmetrical multilayer structure, and a process for producing the structure and the packaging.
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: January 28, 2003
    Assignee: Soplaril, S.A.
    Inventor: Jean-Claude Engelaere
  • Patent number: 6511756
    Abstract: A thermoplastic dicyclopentadiene ring-opening polymer obtained by ring-opening polymerization of a monomer component containing a dicyclopentadiene monomer, characterized in that polycyclic rings which are repeating units of the polymer are bonded in cis-position relative to the carbon-carbon double bond of the main chain of the polymer in 50 mol % or more of the repeating units based on the total repeating units and the content of a low-molecular weight component of 2,000 or less in molecular weight is 10% by weight or less based on the total polymer components, and a hydrogenation product obtained by hydrogenating the carbon-carbon unsaturated bond of the thermoplastic dicyclopentadiene ring-opening polymer.
    Type: Grant
    Filed: April 24, 2000
    Date of Patent: January 28, 2003
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Kazuyuki Obuchi, Masaharu Tokoro, Teruhiko Suzuki, Hajime Tanisho, Kenji Otoi
  • Publication number: 20030017328
    Abstract: The present invention has a main object to provide a transparent conductive heat sealing material of which antistatic property does not deteriorates even at a low humidity, and has a transparency to an extent of permitting visual recognition of the contents and a carrier tape lid using the same. To achieve this object, the transparent conductive heat sealing material of the invention is characterized by a heat-sealable synthetic resin, and conductive fine particle having a 50% particle size of up to 1.0 &mgr;m.
    Type: Application
    Filed: December 3, 2001
    Publication date: January 23, 2003
    Inventors: Isao Inoue, Hiroko Takamori, Masumi Hyakutome, Kazuhito Fujii, Hideki Imamura
  • Patent number: 6509097
    Abstract: An acrylic film with excellent flexibility is easy to process and has 70 to 95 parts by weight of an acrylic rubber-containing polymer (A) and to 30 parts by weight of an acrylic-based thermoplastic polymer (B) and having a total amount of (A) and (B) of 100 parts by weight; a gel content of 50 to 70% by weight; and elongation at break in one direction of 180% or more. The acrylic rubber-containing polymer (A) has an elastic copolymer having a monomer unit whose polymer has a glass transition temperature of more than 65° C. The acrylic-based thermoplastic polymer (B) has a glass transition temperature of 65° C. or less and a weight average molecular weight of 100,000 to 300,000.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: January 21, 2003
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Hiroki Hatakeyama, Kazuaki Hayashida, Yukio Kitaike
  • Publication number: 20030003283
    Abstract: The present invention is the apparatus and method for producing a plastic sheet having a pattern produced in a layer therein. The plastic sheet is a single layer sheet or a multi-layer sheet. The pattern is produced by mixing two or more plastic extrudants together in a mixer. The pattern is visible in the layer containing the two or more plastic extrudants because an at least one of the plastic extrudants is at least partially transparent. The mixer used to produce the pattern includes a housing having an end configured to expel the mixture of the two or more extrudants through a plurality of outlets. The mixer further comprises a rotatable shaft and at least one projection coupled to the shaft and rotatable with the shaft, the at least one projection configured to orient the mixture of the two or more extrudants relative to the plurality of outlets in the housing. The mixer further comprising a thrust bearing configured to couple an end of the shaft to the housing.
    Type: Application
    Filed: June 28, 2001
    Publication date: January 2, 2003
    Applicant: Primex Plastics Corporation
    Inventor: Robert Cramer
  • Publication number: 20030003272
    Abstract: A substrate with a charged surface coated with one or more bilayers of oppositely charged polyelectrolytes. Subsequent optional bilayers of polyelectrolytes must bear alternating opposite charges. The final or top layer may be activated for biomolecular attachment.
    Type: Application
    Filed: June 21, 2001
    Publication date: January 2, 2003
    Inventor: Bruno Laguitton
  • Publication number: 20030003315
    Abstract: There are provided:
    Type: Application
    Filed: May 22, 2002
    Publication date: January 2, 2003
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Hiroaki Takahata, Yasuyuki Takagi
  • Patent number: 6500505
    Abstract: A multilayer film including an outer layer that includes a homo- or interpolymer of propylene and, directly adhered to the outer layer, a layer that includes a homogeneous ethylene/&agr;-olefin interpolymer having a density of no more than about 0.91 g/cm3 exhibits good seal strength and good adhesion between the two layers, even in areas where the film is sealed, even after the film is oriented, even when the film is subjected to the elevated temperatures involved in cook-in procedures, and even where the film is subjected to, e.g., grease from fatty foods. The film also can include one or more, for example, bulk layers, O2-barrier layers, and/or abuse layers.
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: December 31, 2002
    Assignee: Cryovac, Inc.
    Inventors: Graham R. Piper, Ram K. Ramesh
  • Patent number: 6500535
    Abstract: The invention provides a heat-resistant, low-dielectric polymeric material that is preferably a copolymer in which a non-polar &agr;-olefin base polymer segment and a vinyl aromatic copolymer segment are chemically combined with each other, and that is a thermoplastic resin showing a multi-phase structure in which a dispersion phase formed by one segment is finely dispersed in a continuous phase formed by another segment. It is thus possible to achieve a polymeric material that is excellent in heat resistance, has high strength, and has a low dielectric constant and a reduced dielectric loss, and so is suitable for an electrical insulating material for high-frequency purposes.
    Type: Grant
    Filed: August 26, 1998
    Date of Patent: December 31, 2002
    Assignees: TDK Corporation, NOF Corporation
    Inventors: Toshiaki Yamada, Takeshi Takahashi, Yoshiyuki Yasukawa, Kenji Endou, Shigeru Asami, Michihisa Yamada, Yasuo Moriya
  • Patent number: 6500563
    Abstract: Improved thermoplastic polymer elastic film blend compositions including a crystalline isotactic polypropylene component and a crystallizable alpha-olefin and propylene copolymer component, the copolymer having crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided made up of from 0% to 95%, preferably 2% to 40 weight % of the crystalline isotactic polypropylene and from 5% to 100%, preferably 60% to 98 weight % of a crystallizable ethylene and propylene copolymer, wherein the copolymer has isotactically crystallizable propylene sequences and is predominately propylene. The resultant blends manifest unexpected compatibility characteristics, and improved resistance to elastic deformation of the crystalline isotactic polypropylene and from of a crystallizable ethylene and propylene copolymer.
    Type: Grant
    Filed: May 11, 2000
    Date of Patent: December 31, 2002
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Sudhin Datta, Jeffrey Middlesworth
  • Patent number: 6500561
    Abstract: An automobile weatherstripping includes an extrusion-formed part and a mold-formed part, the mold-formed part being welded and integrated with the extrusion-formed part. The extrusion-formed part is made of an olefin elastomer and the mold-formed part is made of a resin composition containing an olefin resin, ethylene-&agr;-olefin copolymer rubber, hydrogenated aromatic vinyl conjugated diene compounds block copolymer mineral oil and at least one of natural rubber and butadiene rubber in predetermined proportions. The extrusion-formed part and the mold-formed part have a sufficient level of bonding strength with no bonding agent layer being used therebetween.
    Type: Grant
    Filed: March 24, 1998
    Date of Patent: December 31, 2002
    Assignees: Toyoda Gosei Co., Ltd., Sumitomo Chemical Company, Limited
    Inventors: Toru Yoshida, Masayoshi Ichikawa, Masanori Aritake, Hironobu Shigematsu, Hiroshi Ooyama, Tatsuo Hamanaka
  • Publication number: 20020197498
    Abstract: In reprocessed plastic material utilizing as a raw material thermoplastic molded part, a compatible sheet material being stuck thereon, the weight of the sheet material is made 0.5% or less of that of the molded part, and further the Izod impact strength and the melt flow rate of the reprocessed material are made, respectively, 80% or more and 120% or less of those of the virgin material. Thereby, good quality reprocessed plastic material with less degradation in physical properties and color relative to the virgin material is provided without adding a step other than a usually conducted recycling step, for recycling of a thermoplastic, a compatible label being stuck thereon.
    Type: Application
    Filed: June 20, 2002
    Publication date: December 26, 2002
    Inventor: Yasushi Koike
  • Publication number: 20020197499
    Abstract: The invention provides a molded article having excellent impact, adhesive and printing properties. The invention also provides a molded article which has a low natural shrinkage percentage, a high shrinkage percentage in heating and a low density and is thus excellent in solvent resistance and hygiene.
    Type: Application
    Filed: December 28, 2001
    Publication date: December 26, 2002
    Inventors: Toshiyuki Hirose, Masao Maeno
  • Patent number: 6497960
    Abstract: The resin composition for a skin member according to the present invention comprises a completely or partially crosslinked olefin thermoplastic elastomer (A) in an amount of 100 parts by weight, an organopolysiloxane (B) having a viscosity (JIS K2283, 25° C.) of not less than 1×106 cSt, preferably 1×106 to 1×108 cSt in an amount of 2 to 20 parts by weight, an organopolysiloxane (C) having a viscosity (JIS K2283, 25° C.) of not less than 10 cSt and less than 1×106 cSt in an amount of 0.5 to 5 parts by weight, and optionally, a polyolefin resin (D) in an amount of 5 to 150 parts by weight and/or a fluoropolymer (E) in an amount of 0.5 to 10 parts by weight. The other resin composition for a skin member according to the invention comprises a completely or partially crosslinked olefin thermoplastic elastomer (A) in an amount of 100 parts by weight, a fluoropolymer (E) in an amount of 0.
    Type: Grant
    Filed: July 20, 1999
    Date of Patent: December 24, 2002
    Inventors: Kyoko Kobayashi, Masato Karaiwa, Kunihiko Mizumoto, Akira Uchiyama
  • Publication number: 20020192412
    Abstract: The present invention relates to a heat shrinkable polyolefin film preferably for a label to be attached to a PET bottle and the like. Improvement of in the lightness, the solvent sealing property, and transparency is an object. The heat shrinkable polyolefin film according to the present invention is a laminate comprising surface layers composed of a resin material containing a specific cyclic olefin resin as a main component, and an intermediate layer composed of a resin material containing a polyethylene resin as a main component.
    Type: Application
    Filed: April 11, 2002
    Publication date: December 19, 2002
    Inventors: Shoichi Satani, Naoki Taya, Akihiko Shiraishi
  • Publication number: 20020192483
    Abstract: Multilayer heat-shrinkable films in which the skin layers A consist of a polyolefin selected from: A1) a composition containing 25-45% b.w. of a random copolymer of propylene with ethylene having 2-5% b.w. of ethylene units and 55-75% b.w. of a random terpolymer of propylene ethylene and one or more C4-C10 alphaolefins, having 2-5% b.w. of ethylenenunits and 6-12% b.w. of alphaolefin units; and A2) random copolymer(s) of propylene and one or more C4-C10 alphaolefins containing 4-14% b.w. of alphaolefin units. Core layer B comprises a hoerophasic composition comprising: a) 20-60% b.w. of a propylene homopolymr with an isotacticity index higher than 80 or of a propylene crystalline copolymer with ethylene and/or C4-C10 alphaolefins containing at least 85% b.w. of propylene units and having an isotacticity index of at least 80 or of mixtures thereof and b) 40-80% b.w. of an ethylene copolymer with propylene and/or C4-C10 alphaolefins and possibly a diene, containing 20-60 % b.w.
    Type: Application
    Filed: November 20, 2001
    Publication date: December 19, 2002
    Inventors: Anne-Marie Joly, Enrico Beccarini
  • Publication number: 20020168512
    Abstract: The present invention relates to a multi-ply, asymmetric sequence of layers (I) usable in conjunction with a substrate as a heat sealable layer, having an outer ply (b) on the heat sealable side, wherein a melt flow rate MFR of at least 0.1 g/10 min, measured to DIN ISO 1133 AT 190° C. and 2.16 kg, is measurable for the material composition forming the overall sequence of layers (I), the sequence of layers (I) has one or more plies (i1), (i2) etc. of a material composition, each of which has a higher melt flow rate MFR, measured to DIN ISO 1133 at 190° C. and 2.16 kg than the material composition forming ply (b), the sum of the weights per unit area of each of the plies (i1), (i2) etc., is at least 40%, relative to the weight per unit area of the entire sequence of layers (I).
    Type: Application
    Filed: February 10, 1999
    Publication date: November 14, 2002
    Inventors: HOLGER EGGERS, RUDI KLEIN
  • Publication number: 20020168535
    Abstract: A film for temporaneously and/or permanently protecting surfaces in general, comprises a base layer, to be bound to a surface to be protected and one or more outer layers, co-extruded with the base layer, and made of thermoplastic and/or elastomeric materials, including addition agents, and providing a rough surface, to be exposed to the view, which can be printed and written upon and has a paper-like aesthetic aspect.
    Type: Application
    Filed: April 4, 2002
    Publication date: November 14, 2002
    Inventor: Alberto Proserpio
  • Patent number: 6479113
    Abstract: A collapsible metal tube, comprising: a metal body portion susceptible of plastic deformation, the body portion being sealed at one end; a shoulder portion and a mouth/neck portion connected to the other end of the body portion; and a resin film provided on the inside wall surface of the body portion, the resin film comprising a metal-adhesive thermoplastic resin layer formed by spray-coating the inside wall surface of the body portion with a dispersion of fine spherical particles consisting of a metal-adhesive thermoplastic resin and then heating to integrate the particles. The resin film formed on the inside of the collapsible metal tube is reliable because it is a dense resin film virtually devoid of pinholes, excellent in elongation at break, and free from cracking when folded or deformed, and is excellent in ability of protecting the metal body portion and the contents.
    Type: Grant
    Filed: March 20, 2000
    Date of Patent: November 12, 2002
    Assignee: Taisei Kako Co., Ltd.
    Inventors: Yuichi Yamamoto, Kenji Ohnishi
  • Patent number: 6479138
    Abstract: A film includes a core layer including a linear random alpha-olefin/vinyl aromatic copolymer; and first and second outer layers including an olefinic polymer; the film having Young's modulus between 50,000 and 200,000 psi, free shrink between 40 and 80% at 240° F., and shrink tension of between 50 and 400 psi, or a shrink force of between 20 and 180 grams, at 240° F. First and second intermediate layers including an ethylene copolymer having a melt index less than 2.0 can be optionally included. Alternatively, a film includes a core layer including an ethylene copolymer having melt index less than 2.0; first and second intermediate layers including a linear random alpha-olefin/vinyl aromatic copolymer; and first and second outer layers including an olefinic polymer; the film having properties as disclosed above.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: November 12, 2002
    Assignee: Cryovac, Inc.
    Inventor: Blaine Childress
  • Publication number: 20020164492
    Abstract: A multiple layer structure comprising a first and a second skin layer, each skin layer composed of a polypropylene containing polymer, and a radio frequency (“RF”) susceptible layer adhered to and between the first and second skin layers. The RF layer has a first component of a propylene based polymer, a second component of a non-propylene polyolefin, a third component of a radio frequency susceptible polymer, and a fourth component of a polymeric compatibilizing agent.
    Type: Application
    Filed: March 21, 2002
    Publication date: November 7, 2002
    Inventors: Gregg Nebgen, Keith M.K. Anderson, Michael W. Scharf
  • Patent number: 6475633
    Abstract: The invention relates to a mixture which is useful as a coextrusion binder, comprising: at least (A) one polyethylene or one ethylene copolymer, at least (B) chosen from (B1) polypropylene or a propylene copolymer, (B2) poly(1-butene) homo- or copolymer, and (B3) polystyrene homo- or copolymer, the mixture of (A) and (B) being grafted with a functional monomer, this grafted mixture itself optionally being diluted in at least one polyolefin (C) or in at least one polymer (D) of elastomeric nature or in a mixture of (C) and (D). The invention also relates to polyolefin/binder/polyamide, EVOH, polyester or metal structures. The invention is useful for making packaging.
    Type: Grant
    Filed: May 3, 2000
    Date of Patent: November 5, 2002
    Assignee: Elf Atochem, S.A.
    Inventors: Patrice Robert, Laurent Breysse
  • Patent number: 6475578
    Abstract: Multilayer films and packaging structure made therefrom which incorporate a peelable seal which operates via two peel mechanisms which are temperature dependent. The multilayered films and the packages in which they are utilized, have multiple layers including a fifth layer comprising high density polyethylene; a fourth layer comprising high density polyethylene, a third layer comprising high density polyethylene; a second layer comprising high density polyethylene and polybutylene and a first layer comprising ethylene vinyl acetate copolymer, polyethylene plastomer and polybutylene.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: November 5, 2002
    Assignee: Pechiney Emballage Flexible Europe
    Inventors: Lisa King Gerrits, Russell P. Gehrke, Paul T. Greisinger
  • Patent number: 6472084
    Abstract: A tough low set elastic film exhibiting surprisingly high tear resistance and method of making the same. The film of the invention is especially beneficial when holes form on the films during manufacturing or normal wear and method of making. The film has activated and non-activated zones formed during an activation process. The activated zones allow the film to expand without generating excessive tensional forces. The film has M-polypropylene or M-polyethylene skin layers and a core layer having an elastomeric polyurethane, ethylene copolymer such as ethylene vinyl acetate styrenic elastomer, an ethylene/propylene copolymer elastomer or ethylene/propylene/diene terpolymer elastomer. The activation process allows the skin layers to behave more like the core layer.
    Type: Grant
    Filed: February 15, 2000
    Date of Patent: October 29, 2002
    Assignee: Tredegar Film Products Corporation
    Inventors: Jeffrey A. Middlesworth, James W. Cree, Steve D. Bruce