Mixture Contains Solid Polymer Derived From Reactant Containing Carboxylic Acid Group Patents (Class 525/78)
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Patent number: 6890992Abstract: The present invention is directed toward more durable golf ball cores and more durable golf balls. The golf balls of this invention comprise a cover and a core wherein the core may further comprise a center and one or more layers of a mantle disposed between the center and the cover. The core, the mantle or the layers of the mantle, comprise a mixture of one or more thermoset rubber materials and at least one compatible, modified, non-ionic polyolefin. The non-ionic polyolefin that is modified may be a homopolymer, copolymer, terpolymer, block copolymer or a mixture thereof that is present at about 0.5 to about 10 parts per hundred of the thermoset rubber material used in the core or core layer.Type: GrantFiled: October 3, 2002Date of Patent: May 10, 2005Assignee: Acushnet CompanyInventor: Jeffrey L. Dalton
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Patent number: 6887943Abstract: This invention provides a graft modified polypropylene polymer which does not contain halogens, is excellent in certain properties such as solubility and can add good adhesiveness and coating ability to crystalline propylene polymer base materials, and a composition containing the same; and in particular, it provides a propylene polymer which contains a propylene polymer main chain having a stereo-block structure containing an isotactic block and a side chain containing a carboxylic acid group, an acid anhydride group or a carboxylic acid ester group, wherein when it is dissolved in toluene to a concentration of 10% by weight at 25° C., the insoluble matter is 1% by weight or less based on the total polymer, and a composition containing the same.Type: GrantFiled: October 31, 2002Date of Patent: May 3, 2005Assignee: Mitsubishi Chemical CorporationInventors: Masato Onoe, Teruaki Ashihara, Kazuyuki Hata, Fumihiko Shimizu, Naomasa Sato, Akio Tanna
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Patent number: 6881790Abstract: Multiple component polymer compositions for fabrication into articles. In particular, polymeric compositions comprising a heat resistant polymer; a radio frequency (“RF”) susceptible polymer; a compatibilizing polymer; the composition having physical properties within a range a<40,000 psi; b>=70%; c<30%; d>1.0; e<0.1%; f<0.1%; g>=0.05; h<=60%; i=0; wherein: a is the mechanical modulus of the composition measured according to ASTM D-882; b is the percent recovery in length of the composition after an initial 20% deformation; c is the optical haze of the composition being 9 mils in thickness according to ASTM D-1003; d is the loss tangent of the composition at 1 Hz measured at melt processing temperatures; e is the elemental halogen content by weight of the composition; f is the low molecular weight water soluble fraction of the composition; g is the dielectric loss between 1 and 60 MHz and over temperatures of 25 to 250° C. of the composition; h sample creep measured at 121° C.Type: GrantFiled: June 5, 1995Date of Patent: April 19, 2005Assignee: Baxter International, Inc.Inventors: Dean Laurin, Angeles Lillian Buan, Lecon Woo, Michael T. K. Ling, Yuan Pang Samuel Ding, William Anderson, Larry A. Rosenbaum, Denise S. Hayward, Joseph P. Hoppesch, Gregg Nebgen, Stanley Westphal
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Patent number: 6878775Abstract: A pressure-sensitive adhesive composition based on (co)polymers of acrylic acid and/or methacrylic acid and/or derivatives thereof which has an at least two-phase domain structure and also an outgassing level of less than 10 ?g/g, based on the weight of the composition, when measured by the tesa method.Type: GrantFiled: February 12, 2002Date of Patent: April 12, 2005Assignee: tesa AGInventors: Marc Husemann, Stephan Zöllner
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Patent number: 6872278Abstract: An adhesive composition that includes a) an emulsion that includes a multi-stage polymer that includes a first stage polymer having a Tg from ?20° C. to 90° C. and including from about 0.5% by weight to about 3% by weight latent crosslinking monomer based on the first stage monomer weight, and a second stage polymer having a Tg from 40° C. to 140° C., the second stage polymer being different from the first stage polymer, b) formaldehyde-based crosslinking agent, and c) catalyst, the composition being capable of passing the DIN EN 204 Test Method.Type: GrantFiled: September 26, 2002Date of Patent: March 29, 2005Assignee: H.B. Fuller Licensing & Financing, Inc.Inventors: Nicholas C. Lehman, Scott W. Rhein, John T. Anderson
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Patent number: 6872774Abstract: The present invention is directed to a multi-layer golf ball having a core, an intermediate layer and a cover. The intermediate layer has a non-ionomeric composition that includes an ethylene/acid polymer and a non-ionomeric stiffening polymer. The stiffening polymer provides the non-ionomeric composition with a flexural modulus and a hardness that are greater than those of the ethylene/acid polymer.Type: GrantFiled: December 16, 2002Date of Patent: March 29, 2005Assignee: Acushnet CompanyInventors: Michael J. Sullivan, Michael D. Jordan, Derek A. Ladd
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Patent number: 6872776Abstract: A vinyl chloride resin composition having excellent weatherability and impact resistance which comprises (a) a vinyl chloride resin, (b) a graft copolymer which is obtained by graft-polymerizing (b2) a graft monomer component composed of 40 to 100% by weight of methyl methacrylate and 0 to 60% by weight of at least one monomer selected from the group consisting of an alkyl acrylate, an alkyl methacrylate, an unsaturated nitrile and an aromatic vinyl compound onto (b1) a crosslinked elastomeric polymer composed mainly of an alkyl acrylate, the methyl ethyl ketone-soluble portion of the graft copolymer having an ?sp/c of 1 to 5 measured at 30° C. with respect to its 0.2 g/100 cc acetone solution, and (c) calcium carbonate; and molded articles having a multilayer structure wherein a layer molded from the above composition is used as the surface layer or the inner layer.Type: GrantFiled: May 31, 1999Date of Patent: March 29, 2005Assignee: Kaneka CorporationInventors: Hirokazu Iguchi, Kazunori Saegusa, Satoshi Mizunuma, Akira Takaki
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Patent number: 6855432Abstract: The present invention provides a resin composition made from admixing starting materials comprising: (a) 0 to 90 parts by weight of a polyolefin; (b) 5 to 95 parts by weight of a functional polyolefin; (c) 5 to 40 parts by weight of a polystyrenic; and (d) 0 to 30 parts by weight of an elastomer, where the total amount of components of (a), (b), (c) and (d) in the resin composition is 100 parts by weight. In a further embodiment, component (a) is a non-olefin copolymer and component (c) is high impact polystyrene. The resin compositions are useful as adhesives for metal and polyolefin substrates.Type: GrantFiled: September 1, 2000Date of Patent: February 15, 2005Assignee: E. I. du Pont de Nemours and CompanyInventors: Sassan Hojabr, Stephen Robert Tanny
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Patent number: 6852799Abstract: Product, method and use of a copolymer AB as a compatibilizing agent between a polar thermoplastic polymer C and a polyolefine D. The method of making AB comprise the steps of: a) melting a copolymer (A) comprising a larger amount of methylmethacrylate units and a smaller amount of functional vinyl or (meth)acrylate units wherein functional moiety is selected in the group consisting of (a hydroxyl, a carboxylic, a glycidyl or an amine functional group); together with maleic anhydride grafted polypropylene (B) allowing condensation reaction to occur between the functions under “A” and the anhydride under “B”; b) the condensation copolymer obtained under a) is further melt together with the two polymers C and D to be homogenized, or melt processed as an interlayer between the two molten polymers.Type: GrantFiled: September 10, 2001Date of Patent: February 8, 2005Assignee: Universite de LiegeInventors: Alexandre Baidak, Christine Brassine, Jean-Marie Liegeois, Trazollah Ouhadi
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Publication number: 20040249074Abstract: The present invention provides a binder resin solution composition, and a coating, ink, and adhesive containing the composition as an active ingredient, the binder resin solution composition having a solid content of 10 to 50 wt. % and comprising (a) a chlorinated polyolefin prepared by chlorinating an isotactic polypropylene polymer having a molecular weight distribution of no more than 3 and a melting point measured by a differential scanning calorimeter of 110 to 140° C. to a chlorine content of 10 to 40 wt. % and, (b) an organic solvent.Type: ApplicationFiled: December 29, 2003Publication date: December 9, 2004Inventors: Kenji Kashihara, Tetsuji Nishioka, Tatsuo Tsuneka, Shoji Maekawa, Isao Wada
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Publication number: 20040220336Abstract: Disclosed herein is an adhesive composition comprising a blend functionalized with a functional group, wherein the blend comprises a C3 to C40 olefin polymer and an additive, the C3 to C40 olefin polymer comprising at least 50 mol % of one or more C3 to C40 olefins, and where the C3 to C40 olefin polymer has: a Dot T-Peel of 1 Newton or more on Kraft paper; an Mw of 10,000 to 100,000; and a branching index (g′) of 0.98 or less measured at the Mz of the polymer when the polymer has an Mw of 10,000 to 60,000, or a branching index (g′) of 0.95 or less measured at the Mz of the polymer when the polymer has an Mw of 10,000 to 100,000. A process of producing the adhesive composition, as well as methods of utilizing the adhesive composition are also disclosed.Type: ApplicationFiled: April 15, 2004Publication date: November 4, 2004Inventors: Ramin Abhari, Charles Lewis Sims, Patrick Brant, Peijun Jiang
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Patent number: 6806320Abstract: Described are melt-processable block copolymers and compositions, embodiments of which may be useful in applications such as pressure sensitive adhesive (PSA) or heat-activatable adhesive, comprising polymeric end block and polymeric B block, wherein end block comprises copolymer and the B block comprises homopolymer or copolymer.Type: GrantFiled: November 15, 2002Date of Patent: October 19, 2004Assignee: 3M Innovative Properties CompanyInventors: Albert I. Everaerts, JingJing Ma, Ashish K. Khandpur, Francois C. D'Haese, Jianhui Xia, Lang N. Nguyen
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Patent number: 6790874Abstract: The invention relates to thermoplastic polyolefin compositions having enhanced surface durability and products thereof which include a thermoplastic polyolefin base component at least one radiation-crosslinkable component present in an amount sufficient to enhance the surface durability of the thermoplastic polyolefin component when radiation-cured and at least one photoinitiator present in an amount sufficient to initiate crosslinking of the radiation-crosslinkable component upon exposure of the thermoplastic polyolefin composition to radiation.Type: GrantFiled: July 31, 2002Date of Patent: September 14, 2004Assignees: Solvay Engineered Polymers, Ciba Specialty Chemicals CorporationInventors: Edmund K. Lau, Satchit Srinivasan, Peter J. Perron, Peter S. Solera, Anthony DeBellis, Chia-Hu Chang, Gerald Capocci, Joseph Puglisi, Douglas Horsey
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Patent number: 6777491Abstract: A multilayered article and vessel, which are superior in the properties, such as shock resistance, rigidity, an ability to barrier against gasoline and interlayer adhesion, and are permissible of being recycled for reuse, comprising a base layer (A1) comprising a polyetylene resin (a1) having an MFR (ASTM D 1238, 190° C., 2160 g) of 0.001 to 0.5 g/10 min. and a density of 0.945 to 0.980 g/cm3, an adhesive layer (A2) comprising a modified etylene/&agr;-olefin copolymer (a2) which is modified by having grafted thereon an unsaturated carboxylic acid or its derivative and has a density of 0.900 to 0.940 and a barriering layer (B) comprising an ethylene/vinyl alcohol copolymer (b), wherein the Izod impact strength (with notch) (ASTM D 256, −40° C.Type: GrantFiled: August 11, 2000Date of Patent: August 17, 2004Assignee: Mitsui Chemicals, Inc.Inventors: Hideshi Kawachi, Hiromi Shigemoto, Yuichiro Terashi
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Patent number: 6767967Abstract: A pseudo cross-link type resin composition made of one of resins or a mixture of the resins; wherein the resin is obtained by mixing a polymer molecule that has an atomic group capable of forming an intermolecular hydrogen bond at least in a molecular side chain or at a molecular tail end of the polymer molecule, and a polymer molecule that has an atomic group capable of forming an intermolecular hydrogen bond at lest in a molecular side chain or in a molecular skeleton of the polymer molecule; wherein the polymer molecule having an atomic group capable of forming an intermolecular hydrogen bond at least in a molecular side chain or at a molecular tail end is a vinylic polymer or a copolymer thereof that has a carboxyl group or a hydroxyl group at least in a molecular side chain or at a molecular tail end, and the polymer molecule that has an atomic group capable of forming an intermolecular hydrogen bond at least in a molecular side chain or in a molecular skeleton is a vinylic polymer or a copolymer thereType: GrantFiled: June 17, 2002Date of Patent: July 27, 2004Assignee: Hitachi Chemical Co., Ltd.Inventors: Tetsuro Yamanaka, Yukihiko Yamashita, Kenji Kanemaru
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Patent number: 6767962Abstract: A thermoplastic molding composition that contains a plurality of graft rubbers is disclosed. A first graft rubber is a product of emulsion polymerization of a mixture containing styrene and acrylonitrile in the presence of butadiene polymer latex (A) having an average particle diameter (d50) of 80 to 220 nm. An additional graft rubber is a product of emulsion polymerization of a mixture containing styrene and acrylonitrile in the presence of butadiene polymer latex (B) having an average particle diameter (d50) of 350 to 650 nm. The butadiene polymer latex (A) is the product of seed polymerization in which seed is butadiene polymer latex having a median particle diameter of 10 to 100 nm, and the butadiene polymer latex (B) is the product of agglomeration in which butadiene polymer latex (A) is the starting latex.Type: GrantFiled: July 26, 2002Date of Patent: July 27, 2004Assignee: Bayer AktiengesellschaftInventors: Herbert Eichenauer, Vera Buchholz, Eckhard Wenz
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Patent number: 6759480Abstract: The invention relates to thermoplastic compositions comprising: −40 to 97 parts of a thermoplastic polymer (M) forming a matrix, chosen from polyamides, polyamide block copolymers, fluoro polymers, polycarbonate, styrene resins, PMMA, thermoplastic polyurethanes (TPU), copolymers containing polyester blocks and polyether blocks, polycarbonate-polyester alloys, polyketones, PVC and ethylene-vinyl alcohol copolymers (EVOH), −60 to 3 parts of (B) comprising: either an ethylene-alkyl (meth)acrylate copolymer (B1), the alkyl having at least 5 carbon atoms, which copolymer (B1) carries a functional group or a blend of an ethylene-alkyl (meth)acrylate copolymer (B2), the alkyl having at least 5 carbon atoms, which copolymer (B2) does not carry a functional group, and of an impact modifier which carries a functional group.Type: GrantFiled: September 26, 2000Date of Patent: July 6, 2004Assignee: AtofinaInventors: Alain Bouilloux, Christophe Lacroix, Jean-Marc Le Blevec, Thibaut Montanari
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Patent number: 6753378Abstract: The present invention is intended to provide a branched polyolefin having various excellent properties, a process for preparing the branched polyolefin and a thermoplastic resin composition containing the branched polyolefin. This branched polyolefin comprises an olefin chain (A) and olefin chain(s) (B) which have recurring units obtained from at least one olefin as main constituent units. In the branched polyolefin, the olefin chain (B) is linked to a position other than both ends of the olefin chain (A), and at least one olefin chain (B) per one olefin chain (A) is present. The process for preparing a branched polyolefin comprises allowing a functional group-containing polyolefin (C) having one or more carboxyl groups and/or acid anhydride groups at positions other than both ends to react with a terminal modified polyolefin (D) having a group capable of reacting with a carboxyl group or an acid anhydride group at only the position of chain end.Type: GrantFiled: May 10, 2002Date of Patent: June 22, 2004Assignee: Mitsui Chemicals, Inc.Inventors: Shinichi Kojoh, Tomoaki Matsugi, Norio Kashiwa
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Patent number: 6746738Abstract: The present invention relates to a coextrusion binder comprising: 5 to 30 parts of a polymer (A), itself comprising a blend of a polyethylene (A1) of relative density between 0.935 and 0.980 and of a polymer (A2) chosen from elastomers, very low-density polyethylenes and ethylene copolymers, the (A1)+(A2) blend being cografted with an unsaturated carboxylic acid; 95 to 70 parts of a polyethylene (B) of relative density between 0.930 and 0.950; the blend of (A) and (B) being such that: its relative density is between 0.930 and 0.950, the content of grafted unsaturated carboxylic acid is between 30 and 10,000 ppm, the MFI (melt flow index) measured according to ASTM D 1238 at 190° C./21.6 kg is between 5 and 100. This binder is particularly useful for petrol tanks of structure: HDPE/binder/EVOH or PA/binder/HDPE.Type: GrantFiled: April 6, 2000Date of Patent: June 8, 2004Assignee: AtofinaInventors: Christophe Le Roy, Xavier Marical, Jérôme Pascal
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Patent number: 6743834Abstract: Anionic electrodeposition coating compositions for forming matte films containing acrylic resin; alkoxysilyl group containing emulsified polymer produced by a multiple stage emulsion polymerization of unsaturated monomer in the presence of water and a emulsifier, wherein the unsaturated monomer containing alkoxysilyl group-containing unsaturated monomer is present in an amount of 5 to 40% by weight based on a total amount of all the unsaturated monomers used in the multiple stage emulsion polymerization; and crosslinking agent.Type: GrantFiled: October 10, 2001Date of Patent: June 1, 2004Assignee: Kansai Taint Co., Ltd.Inventors: Tetsuya Yokoyama, Kamikado Koji
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Patent number: 6716917Abstract: A rubber-reinforced styrene transparent resin composition contains a styrene copolymer reinforced with a rubber polymer, wherein the monomer composition of an acetone soluble resin component contained in the resin composition contains 5 to 70% by weight of aromatic vinyl monomer (a1), 30 to 95% by weight of unsaturated carboxylic acid alkyl ester monomer (a2), 0 to 50% by weight of vinyl cyanide monomer (a3), and 0 to 50% by weight of another monomer copolymerizable with these monomers, and the acid value of the acetone soluble resin component is 0.01 to 1 mgKOH/g.Type: GrantFiled: July 26, 2001Date of Patent: April 6, 2004Assignee: Toray Industries, Inc.Inventors: Ryota Kido, Hiroshi Shibata, Hajime Takamura, Akihiro Ohmura, Yoshiyuki Yamamoto
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Patent number: 6716926Abstract: A process for obtaining a polyolefin composition endowed with improved adhesion performance, especially paintability, comprising premixing a high-flow polyolefin resin with one or more grafting monomers and initiator, possibly also one or more comonomers, feeding the obtained premix and a low-flow polyolefin resin into a mixing device, and gradually heating the components to above their melting points while being subjected to mixing forces. The process may be carried out in an extruder, and polyether amine may optionally be introduced into the extruding mass downstream of the feeding point.Type: GrantFiled: April 26, 2002Date of Patent: April 6, 2004Assignee: Borealis Technology OyInventor: Kjetil L. Børve
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Patent number: 6716928Abstract: Improved grafted propylene copolymer compositions and adhesive blends containing same are provided. The grafts are obtained by reacting propylene-ethylene impact copolymers having specified rubber contents and molecular weight distributions with ethylenically unsaturated acids or acid derivatives, such as maleic anhydride.Type: GrantFiled: August 16, 2002Date of Patent: April 6, 2004Assignee: Equistar Chemicals, LPInventor: Maged G. Botros
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Publication number: 20030232923Abstract: A pseudo cross-link type resin composition made of one of resins or a mixture of the resins;Type: ApplicationFiled: June 17, 2002Publication date: December 18, 2003Inventors: Tetsuro Yamanaka, Yukihiko Yamashita, Kenji Kanemaru
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Patent number: 6646047Abstract: The invention provides a process for the preparation of a thermoplastic elastomeric resin composition comprising melt kneading (a) 100 parts by weight of a block copolymer consisting of at least two polymeric blocks (A) composed mainly of a vinyl aromatic compound and at least one polymeric block (B) composed mainly of a conjugated diene compound, and/or a hydrogenated block copolymer obtained by hydrogenating said block copolymer, (b) 20 to 300 parts by weight of a non-aromatic softening agent for rubber, (c) 1 to 150 parts by weight of a peroxide-crosslinking type olefinic resin and/or a copolymeric rubber containing said resin, and (d) 10 to 150 parts by weight of a peroxide-decomposing type olefinic resin and/or a copolymer containing said resin, characterized in that the process comprises a step of heat-processing component (a), component (b), at least a part of component (c), at least a part of component (d) and at least a part of 1.Type: GrantFiled: April 30, 1999Date of Patent: November 11, 2003Assignee: Riken Technos CorporationInventors: Michihisa Tasaka, Akihiro Tamura, Tetsuya Sawai
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Patent number: 6638578Abstract: A thermosetting composition comprising a co-reactable solid, particulate mixture of (a) beta-hydroxyalkylamide crosslinking agent, e.g., bis(N,N-di-2-hydroxyethyl)adipamide, and (b) polycarboxylic acid functional polymer, is described. The polycarboxylic acid functional polymer is prepared by atom transfer radical polymerization and has well defined polymer chain architecture and polydispersity index of less than 2.5. The thermosetting compositions of the present invention have utility as powder coatings compositions.Type: GrantFiled: November 16, 2001Date of Patent: October 28, 2003Assignee: PPG Industries Ohio, Inc.Inventors: Karen A. Barkac, Simion Coca, James R. Franks, Kurt A. Humbert, Paul H. Lamers, Roxalana L. Martin, James B. O'Dwyer, Kurt G. Olson, Daniela White
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Publication number: 20030181583Abstract: A process for the agglomeration of at least one rubber (A), dispersed in an aqueous phase, by the addition of a dispersion of at least one agglomerating polymer (B) in aqueous phase, in which the agglomerating polymer B used is one containing substantially no free acid groups and the agglomeration is carried out in the presence of at least one basic electrolyte.Type: ApplicationFiled: January 22, 2003Publication date: September 25, 2003Inventors: Wil Duijzings, Sabine Oepen, Norbert Niessner, Michael Breulmann, Hardy Korb
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Patent number: 6602954Abstract: A tire having improved tear strength including at least one component comprising: a vulcanized elastomer; and up to about 35 parts by weight functionalized polyolefin per one hundred parts by weight rubber.Type: GrantFiled: August 22, 2000Date of Patent: August 5, 2003Assignee: Bridgestone CorporationInventor: Chen-Chy Lin
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Patent number: 6583221Abstract: This invention is related to a vinyl chloride resin as obtainable by graft-copolymerizing an acrylic copolymer (a) having a mean particle diameter of 60 to 250 nm with a vinyl monomer (b) predominantly composed of vinyl chloride, said acrylic copolymer (a) being obtainable by graft-copolymerizing 40 to 90 weight % of a copolymer (a−1) with 10 to 60 weight % of a mixture monomer (a−2), said copolymer (a−1) being composed of 100 weight parts of a radical-polymerizable monomer which gives a homopolymer having a glass transition point of not lower than −140° C. but lower than −60° C. and 0.1 to 1 weight part of a polyfunctional monomer, and said mixture monomer (a−2) comprising 100 weight parts of a radical-polymerizable monomer predominantly comprised of a (meth) acrylate which gives a homopolymer having a glass transition point of not lower than −55° C. but lower than −10° C. and 1.5 to 10 weight parts of a polyfunctional monomer.Type: GrantFiled: July 13, 2001Date of Patent: June 24, 2003Assignee: Sekisui Chemical Co., Ltd.Inventors: Takahiro Omura, Noriki Fujii
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Patent number: 6569947Abstract: A maleic anhydride modified ethylene polymer/ionomer/high density polyethylene blend having improved impact resistance (e.g., increased low temperature Izod impact) can be achieved by the addition of a maleic anhydride grafted high ethylene derived polymer (e.g., MAN-g-HDPE, MAN-g-VLDPE, MAN-g-EPR, MAN-g-EPDM, and the like) to ionomer and high density polyethylene during blending. The blends exhibiting improved impact resistance characteristics according to the instant invention are particularly useful in the manufacture of automotive parts, panels and the like having a “class A” surface.Type: GrantFiled: January 25, 2002Date of Patent: May 27, 2003Assignee: E. I. du Pont de Nemours and CompanyInventor: Stewart Carl Feinberg
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Patent number: 6562902Abstract: A thermoplastic molding composition comprises, based on the total of components A to C and, if desired, D and E, which in total give 100% by weight, a) as component A, from 10 to 98% by weight of at least one aromatic polyester, b) as component B, from 1 to 50% by weight of at least one particulate graft copolymer whose soft phase has a glass transition temperature below 0° C.Type: GrantFiled: March 28, 2001Date of Patent: May 13, 2003Assignee: BASF AktiengesellschaftInventors: Michael Fischer, Manfred Knoll, Christophe Ginss, Stephan Berz
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Patent number: 6552131Abstract: The present invention provides a block polymer comprising a polyolefin and a hydrophilic polymer, being finely dispersed in resins, in particular polyolefins, without requiring any compatibilizer, and giving thermoplastic resin compositions, said compositions giving moldings having permanent antistatic properties at low block polymer addition levels even when they are produced by a method involving no shearing and having excellent mechanical strength as well as having an excellent compatibility so as to avoid molding or roll pollution at their formation.Type: GrantFiled: December 12, 2001Date of Patent: April 22, 2003Assignee: Sanyo Chemical Industries, Ltd.Inventors: Shoichi Higuchi, Eiichi Senda
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Patent number: 6545091Abstract: Polyethylene-based adhesive compositions which contain as little as 5 weight percent, and up to 35 weight percent of an acid-grafted metallocene polyethylene have superior peel strength to comparable compositions containing an acid grafted non-metallocene polyethylene. Compositions where the acid-grafted metallocene polyethylene component is based on a metallocene polyethylene having a melt-flow ratio of less than 6.53 and an Mw/Mn of greater than the melt flow ratio less 4.63 are as good adhesive compositions as those based on metallocene resins falling outside these parameters.Type: GrantFiled: January 25, 1996Date of Patent: April 8, 2003Assignee: E. I. du Pont de Nemours & Co.Inventors: I-Hwa Lee, Barry A. Morris
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Publication number: 20030060530Abstract: The present invention relates to shape deformable materials, which are capable of (1) being deformed, (2) storing an amount of shape deformation, and (3) recovering at least a portion of the shape deformation when exposed to a humid environment. The shape deformable materials can advantageously be in the form of films, fibers, filaments, strands, nonwovens, and pre-molded elements. The shape deformable materials of the present invention may be used to form products, which are both disposable and reusable. More specifically, the shape deformable materials of the present invention may be used to produce products such as disposable diapers, training pants, incontinence products, and feminine care products.Type: ApplicationFiled: July 24, 2001Publication date: March 27, 2003Inventors: Vasily A. Topolkaraev, Dave A. Soerens
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Publication number: 20030060564Abstract: The present invention relates to shape deformable materials, which are capable of (1) being deformed, (2) storing an amount of shape deformation, and (3) recovering at least a portion of the shape deformation when exposed to a humid environment. The shape deformable materials can advantageously be in the form of films, fibers, filaments, strands, nonwovens, and pre-molded elements. The shape deformable materials of the present invention may be used to form products, which are both disposable and reusable. More specifically, the shape deformable materials of the present invention may be used to produce products such as disposable diapers, training pants, incontinence products, and feminine care products.Type: ApplicationFiled: July 24, 2001Publication date: March 27, 2003Inventors: Vasily A. Topolkaraev, Dave A. Soerens
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Patent number: 6525145Abstract: A biocompatible, biodegradable, copolymer is prepared from cross-linking a polylactic acid with a polysaccharide such as dextran. The resulting copolymer is a biodegradable hydrogel or solid having both hydrophobic and hydrophilic properties and provides for a mechanism in which biologically active agents may be covalently bonded to the dextran prior to incorporation of the dextran into a copolymer, and the subsequent release of the biologically active agents as the copolymer degrades.Type: GrantFiled: May 31, 2001Date of Patent: February 25, 2003Assignee: Clemson UniversityInventors: Matthew R. Gevaert, Stephen Massia
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Patent number: 6525135Abstract: This invention provide a methacrylic resin modifier, which gives impact resistance and high transparency under wide ranges of molding conditions. More particularly, it provides a methacrylic resin modifier and a polymer processability modifier, which comprises a blend of an impact resistance modifier, wherein weight ratio of the impact resistance modifier and polymer processability modifier is from 95/5 to 80/20 and the polymer processability modifier has a specific viscosity of from 2.5 to 5.0 when measured in its 0.4% by weight toluene solution at 30° C.Type: GrantFiled: September 12, 2000Date of Patent: February 25, 2003Assignee: Kaneka CorporationInventors: Norio Nagata, Katsumi Yamaguchi, Akira Takaki
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Patent number: 6520869Abstract: A resin composition comprising, in admixture, (A) a specific thermoplastic resin composition and (B) a comb-like graft copolymer comprising (b-1) a non-ionomer thermoplastic elastomer as backbone component and (b-2) a polymeric chain containing a non-olefinic monomer as side chain component wherein the weight ratio of (A):(B) is from 99:1 to 40:60 is improved in flow and moldability and thus suitable to form a layer of a golf ball which exhibits improved rebound and durability.Type: GrantFiled: May 21, 2001Date of Patent: February 18, 2003Assignee: Bridgestone Sports Co., Ltd.Inventors: Rinya Takesue, Yasushi Ichikawa
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Patent number: 6503984Abstract: A combination of a low flexural modulus and low crystallinity polyolefin and a functionalized polyolefin were found to result in an olefin composition with excellent adhesion to metals and polar polymers (e.g. polyesters, polyamides, etc) especially fibers therefrom. When these two polyolefins were added to a thermoplastic vulcanizate (e.g. used to partially or fully replace the semicrystalline polyolefin of a thermoplastic vulcanizate), the thermoplastic vulcanizate was found to have the necessary adhesion to form fiber reinforced thermoplastic vulcanizate.Type: GrantFiled: December 22, 1998Date of Patent: January 7, 2003Assignee: Advanced Elastomer Systems, L.P.Inventors: Jim Johnson, Marvin Hill
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Patent number: 6498206Abstract: A resin composition suitable as an impact modifier for thermoplastic resins, which has an excellent blocking resistance improved without lowering the effect of improving the impact resistance and which comprises 100 parts by weight of a graft copolymer containing a hollow rubber component and at least two additives selected from the group consisting of 0.1 to 10 parts by weight of a higher fatter acid soap, 0.1 to 10 parts by weight of a crosslinked polymer of 0.1 to 100% by weight of a crosslinking monomer and 0 to 99.9% by weight of a vinyl monomer and 0.001 to 5 parts by weight of a silicone oil.Type: GrantFiled: July 31, 2001Date of Patent: December 24, 2002Assignee: Kaneka CorporationInventors: Tosio Mizuta, Akio Sato, Tomomichi Hashimoto, Mitsuo Kakutani, Akira Takaki
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Publication number: 20020188064Abstract: The present invention is directed to a polymeric composition including a poly(alkenyl-co-maleimide) and an inorganic salt. Optionally, an extender is included. The composition exhibits good strength and vibration damping properties.Type: ApplicationFiled: May 22, 2001Publication date: December 12, 2002Applicant: Bridgestone/Firestone Research, Inc.Inventors: Xiaorong Wang, Victor J. Foltz
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Patent number: 6486213Abstract: There is disclosed block and graft copolymers, and hydrogels thereof, which, in one embodiment, contain both a temperature-sensitive polymer component and a pH-sensitive polymer component, and the use of such copolymers for topical drug delivery to a treatment area. The block and graft copolymers may be physically mixed with one or more drugs (or with other polymers) to form a copolymer-drug mixture. These mixtures may be applied as solid particles suspended in a pharmaceutically acceptable carrier, or as a liquid which gels upon contact with the treatment area. Upon contact with the treatment area, the pH-sensitive polymer component hydrates and swells, thereby causing release of the drug from the mixture. In addition, such hydration and swelling causes the pH-sensitive polymer component to adhere to the tissue of the treatment area, thus prolonging contact time.Type: GrantFiled: June 7, 1995Date of Patent: November 26, 2002Assignee: University of WashingtonInventors: Guohua Chen, Allan S. Hoffman
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Patent number: 6476117Abstract: Thermoplastic elastomers containing hard segments formed from polyalkylenes and soft segments formed from elastomeric polymers near their gelation point are formed. Compositions containing these materials are elastomeric and exhibit excellent damping capabilities over a wide range of temperatures and frequencies.Type: GrantFiled: June 5, 2000Date of Patent: November 5, 2002Assignee: Bridgestone CorporationInventors: Xiaorong Wang, Victor J. Foltz, Terrence E. Hogan, James E. Hall
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Publication number: 20020161136Abstract: A biocompatible, biodegradable, copolymer is prepared from cross-linking a polylactic acid with a polysaccharide such as dextran. The resulting copolymer is a biodegradable hydrogel or solid having both hydrophobic and hydrophilic properties and provides for a mechanism in which biologically active agents may be covalently bonded to the dextran prior to incorporation of the dextran into a copolymer, and the subsequent release of the biologically active agents as the copolymer degrades.Type: ApplicationFiled: May 31, 2001Publication date: October 31, 2002Inventors: Matthew R. Gevaert, Stephen Massia
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Patent number: 6472487Abstract: Synthetic polymers having moieties capable of covalent or hydrogen bonding to cellulose and one or more amphiphilic moieties are disclosed. These polymers are capable of providing two distinct properties to paper products, such as tissues, which properties heretofore have been imparted through the use of at least two different molecules. The backbone of these synthetic polymers is based on modified vinyl polymers, such as polyvinyl alcohol, polyacrylamides and polyacrylic acids.Type: GrantFiled: May 14, 2001Date of Patent: October 29, 2002Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Wen Zyo Schroeder, Daniel Arthur Clarahan, Mike Thomas Goulet, Thomas Gerard Shannon
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Patent number: 6469095Abstract: Thermoplastic molding compositions comprise A) from 10 to 90% by weight of at least one thermoplastic polymer, B) from 1 to 20% by weight of a polyethylene which contains carboxyl groups and has a mean molecular weight Mn (number average) of from 24,000 to 100,000 g/mol, C) from 5 to 60% by weight of a halogen-free flame retardant D) from 0 to 70% by weight of other additives and processing aids, where the total of the percentages by weight of components A) to D) is 100%Type: GrantFiled: June 14, 1999Date of Patent: October 22, 2002Assignee: BASF AktiengesellschaftInventors: Brigitte Gareiss, Andreas Deckers, Martin Klatt, Wilhelm Weber
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Patent number: 6465606Abstract: A polyether monoamine containing from about 36 to about 44 ethylene oxide units and from about 1 to about 6 propylene oxide units is useful as a reactant with functionalized polypropylene such as maleated polypropylene to form a reaction product blended with polypropylene.Type: GrantFiled: February 6, 2001Date of Patent: October 15, 2002Assignee: Huntsman Petrochemical CorporationInventors: Randall Keith Evans, Richard J. G. Dominguez, Richard J. Clark
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Patent number: 6458890Abstract: The present invention relates to 4-methyl-1-pentene polymer compositions. Specifically, the present invention relates to adhesive compositions comprising the 4-methyl-1-pentene polymers used in bonding a 4-methyl-1-pentene polymer layer and a polar-group-containing resin layer, and laminates obtained by using such compositions. The 4-methyl-1-pentene polymer compositions as these adhesive compositions comprise a 4-methyl-1-pentene polymer (A); and a modified polyolefin resin (B) comprising a mixture of an unsaturated carboxylic acid-modified a-olefin polymer (B-1) whose &agr;-olefin is selected from a group of propylene, butene-1 and 4-methyl-1-pentene and an unsaturated carboxylic acid-modified ethylene-&agr;-olefin copolymer (B-2). In these compositions, an unsaturated carboxylic acid-modified 4-methyl-1-pentene polymer (A′) showing a particular modification rate and a particular melt flow rate may be used in place of (A) and (B-1).Type: GrantFiled: September 20, 2000Date of Patent: October 1, 2002Assignee: Mitsui Chemicals, Inc.Inventors: Katsumi Noritomi, Toshimasa Takata
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Patent number: 6455634Abstract: The present invention relates to a blend of at least one (meth)acrylate polymer and at least one amorphous propylene-derived polymer, and an optional tackifier that provide pressure sensitive adhesive compositions in which improved peel adhesion to at least one of low and relatively high surface energy substrates can be achieved.Type: GrantFiled: December 29, 2000Date of Patent: September 24, 2002Assignee: 3M Innovative Properties CompanyInventors: Ashish K. Khandpur, Eugene G. Joseph, Greggory S. Bennett
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Patent number: 6447913Abstract: To provide a thermoplastic polyester resin composition which has a very good durability to alkaline solutions for a long period of time. That is, a thermoplastic polyester resin composition, wherein a thermoplastic polyester resin (A) is compounded with 1-25% by weight (in the total composition) of impact resistance rendering materials (B), 0.1-15% by weight (in the total composition) of a silicone compound and/or a fluorine compound (C), 1-50% by weight (in the total composition) of an inorganic filler (D), and 0.1-10% by weight of at least one polyfunctional compound (E) selected from the group consisting of an epoxy compound, an isocyanate compound and a carboxylic acid dianhydride. A molded article of the present invention has anti-stress properties even in a weld part thereof.Type: GrantFiled: January 25, 2001Date of Patent: September 10, 2002Assignees: Polyplastics Co., LTD, Denso CorporationInventors: Kazufumi Watanabe, Takayuki Ishikawa, Toru Katsumata, Tetsuya Hirose, Hiroyuki Wakabayashi