Solid Graft Or Solid Graft-type Copolymer With Other Solid Polymer, Sicp, Or Spfi Patents (Class 524/504)
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Publication number: 20030166767Abstract: Pressure sensitive adhesive formulations of an acrylic polymer grafted with a hydrogenated rubber. In one embodiment, the polymer contains a hydroxyalkyl (meth)acrylate ester which is crosslinked with a titanium-containing chelated metal alkoxide. The adhesive formulations provide an exceptional combination of adhesion to low energy surfaces and high temperature cohesive strength.Type: ApplicationFiled: February 13, 2003Publication date: September 4, 2003Inventors: Paul B. Foreman, Smita M. Shah, Rama Chandran, Patrick S. Eaton
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Patent number: 6610774Abstract: The invention provides an aqueous dispersion which includes i) an aqueous dispersion (I) resulting from dispersion of a block copolymer (I) composed of at least one polymer block (A) containing olefin monomer units and at least one polymer block (B) containing 2 to 100 mole percent of units derived from at least one vinyl monomer having a carboxyl or carboxylic anhydride group and 98 to 0 (zero) mole percent of units derived from another vinyl monomer or monomers copolymerizable with the carboxyl group- or carboxylic anhydride group-containing vinyl monomer, in an aqueous solution of not less than 0.05 equivalent, relative to the carboxyl or carboxylic anhydride group, of a basic substance, and ii) a polyurethane (II), iii) vinyl polymer (III) or iv) tackifier (IV) incorporated in the aqueous dispersion (I).Type: GrantFiled: June 29, 2001Date of Patent: August 26, 2003Assignee: Kuraray Co., Ltd.Inventors: Kazuhiko Maekawa, Mototsugu Yoshihara, Mitsuru Kato, Yukio Itoshima, Mamoru Omoda, Yukiatsu Komiya
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Patent number: 6608135Abstract: Polymer compositions including an olefinic polymer, a polar polymer and a compatibilizer are disclosed. The compatibilizer can be a block or graft copolymer including polymer portions that are compatible with the olefinic polymer and polymer portions that are compatible with the polar polymer.Type: GrantFiled: January 7, 2000Date of Patent: August 19, 2003Assignee: Teknor Apex CompanyInventors: Raman Patel, Dan Mallin, Keith Saunders, Patrick Tiberio, John Andries
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Patent number: 6605665Abstract: A process for the preparation of fiber-reinforced moldings for motor vehicles wherein the molding comprises a) from 1 to 96.86% by weight of at least one polycondensate, b) from 1 to 12% by weight of at least one particulate graft copolymer whose soft phase has a glass transition temperature below 0° C. and whose median particle size is from 50 to 1000 nm, c) from 1 to 12% by weight of at least one copolymer made from the following monomers, c1) from 50 to 90% by weight of at least one vinylaromatic monomer, and c2) from 10 to 50% by weight of acrylonitrile and/or methacrylonitrile, based in each case on component c, d) from 0 to 20% by weight of e) from 0.01 to 15% by weight of a polycarbonate, f) from 0.01 to 2% by weight of a carbon black, g) from 0 to 12% by weight of a polymer other than component B, h) from 0 to 20% by weight of a polyester other than component A, i) from 0.Type: GrantFiled: July 17, 2001Date of Patent: August 12, 2003Assignee: BASF AktiengesellschaftInventors: Michael Fischer, Manfred Knoll, Christophe Ginss, Stephan Berz
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Patent number: 6605664Abstract: A pigment dispersion is composed of a pigment, a polymer and a solvent. The polymer has, on side chains thereof, carboxyl groups derived from a dibasic acid. The pigment dispersion is useful for writing instruments and printers.Type: GrantFiled: February 11, 2000Date of Patent: August 12, 2003Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.Inventors: Kazuo Kanou, Yoshifumi Sugito, Hiroaki Saikatsu
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Patent number: 6605668Abstract: The invention pertains to water-dissipatable polymers comprising lipophilic polymers having pendant sulfonic acid salt groups and, optionally, pendant nonionic groups, methods of making such water-dissipatable polymers and the use of such polymers in aqueous systems, including aqueous coating compositions. The invention also pertains to addition polymer polyols having such pendant sulfonic acid salt groups and, optionally, pendant nonionic groups, their methods of manufacture and their use in aqueous systems, including aqueous coating compositions. The polymers of the invention may be used as, for example, binders, emulsifying agents and dispersing agents in aqueous systems, especially aqueous coating compositions.Type: GrantFiled: May 10, 2000Date of Patent: August 12, 2003Assignee: Akzo Nobel N.V.Inventors: Roelof Buter, Andreas Henricus Johannes Roelofs
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Patent number: 6599973Abstract: A polymeric dispersant for pigments based on an acrylic graft copolymer wherein the graft copolymer has a weight average molecular weight of about 5,000-100,000 and comprises a hydrophobic polymeric backbone and discrete anionic and nonionic hydrophilic side chains attached to the backbone. These graft copolymers are useful as dispersants in aqueous systems, and are particularly useful in formulating exterior water borne coatings for automobiles and trucks.Type: GrantFiled: September 27, 2000Date of Patent: July 29, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Karyn B. Visscher, Patrick F. Mc Intyre
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Patent number: 6586517Abstract: The present invention provides a long fiber-reinforced polypropylene resin composition for a molded article which is improved in all of a mechanical strength, a rigidity and an impact resistance and excellent as well in a durability, in which the long fiber-reinforced polypropylene resin composition comprises a long fiber-reinforced propylene polymer composition comprising a propylene polymer modified with unsaturated carboxylic acid or an anhydride thereof and having an isotactic pentad ratio of 96% or more and a melt flow rate of 100 to 500 g/10 min, an alkaline earth metal compound, and a glass fiber; and a propylene-ethylene copolymer composition comprising a propylene-ethylene copolymer having a melt flow rate of 10 to 60 g/10 min and a nucleating agent.Type: GrantFiled: February 13, 2002Date of Patent: July 1, 2003Assignees: Mazda Motor Corporation, Chisso Corporation, Chisso Petrochemical CorporationInventors: Koichi Saito, Toshimori Nakai, Takahiro Tochioka
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Patent number: 6586097Abstract: These crosslinked microparticles between 10-300 nm in size are obtained by dispersion polymerization, in non-aqueous medium which is non-solvent for the polymer formed, of a composition of ethylenically unsaturated polymerizable compounds, comprising: at least one monomer A, comprising only one ethylenic unsaturation, giving the microparticles formed in the said non-aqueous medium self-stabilization during and after polymerization, without any addition of polymer having the function of a stabilizing agent, tither before, during or after polymerization, at least one compound B comprising at least two ethylenic unsaturations and optionally, depending on the case: at least one compound C comprising only one ethylenic unsaturation and/or at least one compound D which is different from A, B and C and comprising at least one ethylenic unsaturation which can undergo radical-mediated polymerization and at least one second reactive function f1 which is other than an ethylenic unsaturation.Type: GrantFiled: December 12, 2001Date of Patent: July 1, 2003Assignee: Cray Valley, S.A.Inventors: Jean-Pierre Pascault, Ludovic Valette, Benoit Magny
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Patent number: 6576700Abstract: A high flow polyphenylene ether resin composition with improved HDT values and flame retardance comprising a blend of at least two polyphenylene ether resins, a first resin having an intrinsic viscosity of at least 0.3 dl/g, and a second resin having an intrinsic viscosity of less than 0.25 dl/g and preferably having a particle size of at least about 100 &mgr;m. The composition preferably contains less than 30 wt % of the low viscosity polyphenylene ether based on the weight of the total composition. Fiber reinforced and flame retarded compositions also exhibit high HDT values.Type: GrantFiled: April 12, 2000Date of Patent: June 10, 2003Assignee: General Electric CompanyInventor: Nirajkumar Patel
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Publication number: 20030100662Abstract: A gel composition that is the combination of or reaction product of ingredients comprising a thermoplastic elastomer copolymer, a nylon-grafted elastomer, and an extender.Type: ApplicationFiled: November 2, 2001Publication date: May 29, 2003Applicant: Bridgestone Corp.Inventors: Xiaorong Wang, Victor J. Foltz
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Patent number: 6566436Abstract: The use of a thermoplastic molding composition which is not ABS, comprising, based on the total of the amounts of components A, B, C, and, where appropriate, D, this total being 100% by weight, a: as component A, from 1 to 48% by weight of at least one particulate emulsion polymer which has one or more phases and has a glass transition temperature below 0° C. in at least one phase, and has a median particle size from 50 to 1000 nm, b: as component B, from 1 to 48% by weight of at least one amorphous or semicrystalline polymer, c: as component C, from 51 to 90% by weight of polycarbonates, and d: as component D, from 0 to 47% by weight of conventional addictives and/or fibrous or particulate fillers, or a mixture of these, for producing moldings, or corresponding semifinished products, for the garden sector or animal-keeping sector.Type: GrantFiled: April 5, 2001Date of Patent: May 20, 2003Assignee: BASF AktiengesellschaftInventors: Norbert Güntherberg, Heiner Görrissen, Graham Edmund Mc Kee, Norbert Niessner, Martin Weber
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Patent number: 6552117Abstract: The present invention discloses an aqueous coating composition comprising 5 to 95 wt. % of an alkali-swellable core-shell addition polymer (I), and 95 to 5 wt. % of a polyurethane (II). The present invention provides an aqueous coating composition which may be used as base coat in a base coat/clear coat system which has good mechanical properties, a high flop, a high gloss, practically no strike-in, and a good water-resistance. Due to the fact that higher solids contents can be achieved with the aqueous coating composition of the present invention, a reduction in drying times and number of coats is obtained.Type: GrantFiled: December 21, 2000Date of Patent: April 22, 2003Assignee: Akzo Nobel N.V.Inventors: Jan Wilhelm Ernst Moos, Johannes Hubertus Van Diemen, Gertrude A. Broekroelofs
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Patent number: 6551713Abstract: A curable coating composition comprising functionalized oligomer components i and ii which cross-link at cure to form a three-dimensional network having chains of substantially uniform, controllable molecular weight between cross-links; oligomers i and ii having weight average molecular weights not exceeding about 3,000, a polydispersity for (i) not exceeding about 1.5, and functionalities that react with one another to cross-link i and ii at cure to yield coatings with an excellent balance of hardness and mar resistance.Type: GrantFiled: April 10, 2002Date of Patent: April 22, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Robert John Barsotti, Isidor Hazan, Bruce Lyle Neff
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Patent number: 6548181Abstract: The invention relates to a flexible polyamide composition containing at least 50 parts by weight of non-cross-linked rubber per 50 parts by weight of polyamide and the production thereof. The polyamide has a molecular weight such that the melt viscosity at the processing temperature is at most 300 pa.s, preferably at most 200 pa.s. The rubber's Mooney viscosity is at least 40, most preferable is a rubber with a Mooney viscosity of at least 60. The rubber has been functionalized. Preferably a combination of a functionalized and a non-functionalized rubber is used. The rubber particles in the polyamide matrix have a particle size of at most 5 &mgr;m, preferably at most 3 &mgr;m.Type: GrantFiled: September 26, 2001Date of Patent: April 15, 2003Assignee: DSM N.V.Inventor: Guido P. C. Beusen
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Patent number: 6548578Abstract: The present invention provides a vulcanizable elastomer composition comprising 100 parts by weight of an elastomer; about 5 to about 80 parts by weight of reinforcing filler, per 100 parts of the elastomer, including a starch/emulsion styrene butadiene copolymer; about 1 to about 6 parts by weight of a coupling agent, per 100 parts of the elastomer, said coupling agent having a moiety reactive with the hydroxyl groups of the starch/emulsion styrene butadiene copolymer and a second moiety reactive with said elastomer; about 40 to about 115 parts of an additional reinforcing filler, per 100 parts of the elastomer, wherein said filler is selected from the group consisting of carbon black, silica and mixtures thereof; and about 0.2 to about 5 parts of a curing agent, per 100 parts of the elastomer. A process is also provided for the preparation of a vulcanized elastomer composition according to the present invention.Type: GrantFiled: February 20, 2001Date of Patent: April 15, 2003Assignee: Bridgestone/Firestone North American Tire, LLCInventor: John F. Pawlikowski
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Publication number: 20030069346Abstract: An additive for use in compounding rubber provides for improved process ability and enhanced resistance to cracking as a result of ozone exposure. The additive preferably comprises a polyethylene wax homopolymer having a molecular weight of approximately 1000-1100 and melts viscosity of 20-40 mPas. The additive can be used in the manufacture of tires, belts, hoses, air springs and roofing membranes.Type: ApplicationFiled: September 11, 2001Publication date: April 10, 2003Inventors: Gregory G. Borsinger, Craig Cawley
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Patent number: 6531185Abstract: The invention concerns hydrophobic films for coating surfaces obtained by drying at low temperature, not requiring coalescent agents, latex containing a core-structured polymer with soft characteristic having a glass transition temperature lower than 20° C. enclosed in a shell with hard characteristic having a glass transition temperature higher than 50° C.Type: GrantFiled: May 5, 2000Date of Patent: March 11, 2003Assignee: Elf Atochem, S.A.Inventors: Xavier Drujon, Pascale Fabre, Ludwik Leibler, Gilles Meunier, Fabrice Domingues Dos Santos
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Patent number: 6521715Abstract: A polymer dispersant for pigments based on an acrylic graft copolymer wherein the graft copolymer has a weight average molecular weight of 3,000-100,000 and comprises a polymeric backbone and macromonomer side chains attached to the backbone, wherein (1) the polymeric backbone is formed of polymerized ethylenically unsaturated monomers and (2) the side chains are macromonomers that are attached to the backbone at a single terminal point and are formed from polymerized ethylenically unsaturated monomers and have a weight average molecular weight of about 1,000-30,000 wherein the graft copolymer contains about 2 to 70% by weight, based on the weight of the graft copolymer, of polymerized ethylenically unsaturated monomers containing acetoacetate groups that are polymerized into the backbone, side chains, or both, and the acetoacetate groups are reacted with a primary amine to form a pendant acetoacetyl amine group on the graft copolymer which serves as the pigment anchoring group.Type: GrantFiled: August 22, 2000Date of Patent: February 18, 2003Assignee: E. I. du Pont de Nemours and CompanyInventor: Sheau-Hwa Ma
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Patent number: 6521693Abstract: Provided is a long fiber-reinforced polypropylene resin composition which provides a molded article excellent in a mechanical strength and an impact resistance and having a small anisotropy in a strength, so that it can suitably be used even for uses in medium-sized to large-sized molded articles. The long fiber-reinforced polypropylene resin composition comprises 40 to 85% by weight of (A) a long fiber-reinforced propylene homopolymer pellet shown below and 15 to 60% by weight of (B) a propylene base block copolymer resin having the MFR of 50 g/10 min or less: (A): a long fiber-reinforced propylene homopolymer pellet comprising, (A1): 20 to 64.9% by weight of a modified propylene homopolymer obtained by modifying a propylene homopolymer with unsaturated carboxylic acid or an anhydride thereof or a mixture of the above modified propylene homopolymer and an unmodified propylene homopolymer, wherein an MFR is 60 g/10 min or more, (A2): 0.Type: GrantFiled: February 28, 2001Date of Patent: February 18, 2003Assignees: Chisso Corporation, Chisso Petrochemical CorporationInventors: Koichi Saito, Toshimori Nakai, Nobukazu Atsumi, Hitoshi Kuramochi
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Publication number: 20030022980Abstract: Pressure sensitive adhesive formulations of an acrylic polymer grafted with a hydrogenated rubber. In one embodiment, the polymer contains a hydroxyalkyl (meth)acrylate ester which is crosslinked with a titanium-containing chelated metal alkoxide. The adhesive formulations provide an exceptional combination of adhesion to low energy surfaces and high temperature cohesive strength.Type: ApplicationFiled: March 16, 2001Publication date: January 30, 2003Inventors: Paul B. Foreman, Smita M. Shah, Rama Chandran, Patrick S. Eaton
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Patent number: 6512027Abstract: A thermoplastic resin having such a sufficient heat shock resistance that it is unbroken by common temperature changes when applied to an insert molded article, which is obtained by blending a thermoplastic polyester resin (A) with 1-25% by weight to the total amount of the composition of an impact resistance giving agent (B), 1-50% by weight to the total amount of the composition of an inorganic filler (C) and 0.1-10% by weight to the total amount of the composition of an aromatic polyvalent carboxylate (D).Type: GrantFiled: March 22, 2000Date of Patent: January 28, 2003Assignee: Polyplastics Co., Ltd.Inventors: Hiroyuki Kanai, Toru Katsumata
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Patent number: 6512034Abstract: Disclosed is a cationic graft-modified natural rubber latex, which is obtained by cationically modifying the graft-natural natural rubber latex with a cationic surfactant in the presence of a nonionic surfactant such as polyoxyalkylene alkyl phenyl ether, polyoxyalkylene monostyryl phenyl ether, polyoxyalkylene distyryl phenyl ether or polyoxyalkylene tristyryl phenyl ether, the obtained rubber latex being useful as an adhesive for fibers and papers.Type: GrantFiled: September 8, 2000Date of Patent: January 28, 2003Assignee: Sumitomo Rubber Industries, LtdInventors: Akihiko Hamada, Naoya Ichikawa
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Patent number: 6509402Abstract: The invention provides antistatic, thermoplastic moulding compositions with improved properties based on optionally rubber-modified polymers of vinyl aromatics, e.g. styrene and/or &agr;-methyl styrene and acrylonitrile and/or acrylates, which contain a special acid-reacting polyether as the antistatic agent.Type: GrantFiled: March 21, 2001Date of Patent: January 21, 2003Assignee: Bayer AktiengesellschaftInventor: Herbert Eichenauer
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Patent number: 6509412Abstract: A soft gel composition includes a hydrogenated block copolymer, a polyphenylene ether, substantially amorphous polyolefin or hydrogenated polydiene, and a compatibilizer blended in respective proportions sufficient to provide the composition with a Shore A hardness of no more than about 30 and a service temperature of up to about 150° C.Type: GrantFiled: September 29, 2000Date of Patent: January 21, 2003Assignee: Bridgestone CorporationInventor: James E. Hall
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Patent number: 6503975Abstract: Emulsions are disclosed which contain (a) an aqueous carrier and (b) a polymer mixture of (1) 40-99.5% by weight of a copolymer with a weight average molecular weight of at least 3000; and (2) 0.5-60% by weight of a stabilizing copolymer dispersed in water, wherein the stabilizing copolymer comprises a structured polymer having a hydrophobic portion and a hydrophilic portion, wherein said structured polymer is selected from the group consisting of (i) polymers comprising 5-95% by weight of a hydrophilic macromonomer having at least 10% of an acid functional monomer and 5-95% by weight of at least one hydrophobic monomer polymerized in the presence of the macromonomer; and (ii) polymers comprising 5-95% by weight of a hydrophobic macromonomer and 5-95% by weight of hydrophilic copolymer comprising at least 10% of an acid functional monomer polymerized in the presence of the macromonomer.Type: GrantFiled: March 29, 2000Date of Patent: January 7, 2003Assignee: E. I du Pont de Nemours and CompanyInventor: Josef Huybrechts
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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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Patent number: 6489398Abstract: Water-dilutable brushing paints based on water-soluble alkyd resins rendered water-soluble through neutralization of methacrylic acid groups thereon are described. The brushing paints have favorable applicational properties, especially with regard to wet-edge time and brushability.Type: GrantFiled: October 30, 1992Date of Patent: December 3, 2002Assignee: Solutia Austria GmbHInventors: Bertram Zückert, Rami-Raimund Awad, Walter Weger
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Patent number: 6486251Abstract: A polycarbonate/polyester resin formulation has enhanced impact resistance and comprises a polycarbonate resin, a polyester resin, flakes having a desired coloration, and a modifier selected to enhance the impact strength of the molded resin.Type: GrantFiled: February 29, 2000Date of Patent: November 26, 2002Assignee: General Electric CompanyInventor: Bimal Ramesh Patel
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Publication number: 20020173581Abstract: A polyolefin blend is presented having a propylene containing polymer as a base component, a portion of which is functionalized with a hydrophilic moiety; a toughening component of polymer selected from the group consisting of (A) a copolymer of ethylene and an alpha olefin and (B) a terpolymer of ethylene, an alpha olefin and a diene; an interfacial modifier in the form of an elastomeric block copolymer; and a filler.Type: ApplicationFiled: May 3, 2000Publication date: November 21, 2002Inventors: Marta Drewniak, Jhy-Yuan Her, Satchit Srinivasan, Edward Szczepaniak
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Publication number: 20020173582Abstract: A Joint between a first and a second assembly part has adjoining side walls, which may be tightly joined together by means of a sealing bed provided with a removable adhesive sealant, The first side wall has a first sealing surface attached thereto, the first side wall in the joined state running at a distance approximately parallel to a second sealing surface attached to a second side wall, and both of the sealing surfaces form the sealing bed with a level running direction, directed away from the side walls, in whose extension the adhesive sealing material can be withdrawn. A method for producing a joint between a first assembly part and a second assembly part, where a removable adhesive sealant is applied in the liquid state to a sealing bed area of the first assembly part, and both of the assembly parts are joined together.Type: ApplicationFiled: February 7, 2002Publication date: November 21, 2002Applicant: Hella KG Hueck & Co.Inventor: Stephan Schmidt
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Publication number: 20020165311Abstract: The present invention provides a vinyl chloride-based resin composition which is highly excellent in weatherability, impact resistance and gloss is provided, which comprises:Type: ApplicationFiled: April 9, 2002Publication date: November 7, 2002Inventors: Hirokazu Iguchi, Nobumasa Nakajima, Koji Yui, Mamoru Kadokura
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Patent number: 6475582Abstract: A three-layer, co-extruded tube has (1) an inner polyamide layer, (2) a middle layer made from (a) a modified polylefin, (b) a broad molecular weight distribution propylene polymer material, (c) a graft copolymer made from a backbone of propylene polymer material to which is grafted a methyl methacrylate/methyl acrylate copolymer or a methyl methacrylate/methacrylic acid copolymer, and (d) an olefin copolymer rubber, and (3) an outer layer made from (a) a broad molecular weight distributation propylene polymer material, (b) a graft copolymer made from a backbone of propylene polymer material to which is grafted a methyl methacrylate/methyl acrylate copolymer or a methyl methacrylate/methacrylic acid copolymer, and (c) an olefin copolymer rubber. The tubing is suitable for fuel systems, high pressure tubing, and other tubing for automotive applications.Type: GrantFiled: March 2, 2000Date of Patent: November 5, 2002Assignee: Basell Poliolefine Italia S.p.A.Inventors: Tam T. M. Phan, Anthony J. DeNicola, Jr., John C. Haylock
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Patent number: 6476129Abstract: The present invention relates to a novel thermoplastic elastomer composition with superior oil resistance along with elastomeric flexibility, creep resistance at high temperature, superior mechanical strength and moldability. The composition comprises (a) 100 parts by weight of a hydrogenated block copolymer obtained by hydrogenating a block copolymer comprising at least two A polymer blocks comprised mainly of a vinyl aromatic compound and at least one B polymer block comprised mainly of a conjugated diene compound; and (b) 30-300 parts by weight of a partially crosslinked thermoplastic elastomer obtained by polymerizing an acrylate monomer absorbed in a polyolefin. The novel composition can be applied as a material for various molded parts.Type: GrantFiled: May 27, 1998Date of Patent: November 5, 2002Assignees: Asahi Kasei Kogyo Kabushiki Kaisha, Optatech CorporationInventor: Tetsuo Masubuchi
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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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Patent number: 6472463Abstract: A polymer dispersant for pigments based on an acrylic graft copolymer wherein the graft copolymer has a weight average molecular weight of at least 3000 and has 10 to 90% by weight of a polymeric backbone and 90 to 10% by weight of macromonomer side chains attached to the backbone and wherein the graft copolymer has at least about 1% by weight of a pigment anchoring group selected from the group consisting of an aromatic ester group, aromatic amine group, and quaternary ammonium group, or mixtures thereof, attached to the backbone or the macromonomer. These materials disperse a wide variety of pigments and are useful in solvent borne coatings where they can provide improved efficiency of pigment use, lower paint viscosity, and reduced emission of volatile organic solvent.Type: GrantFiled: December 17, 1999Date of Patent: October 29, 2002Assignee: E. I. du Pont de Nemours and CompanyInventor: Sheau-Hwa Ma
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Patent number: 6472082Abstract: A modified thermoplastic norbornene polymer obtained by graft-modifying a thermoplastic norbornene polymer selected from a ring-opening polymer of a norbornene monomer or a hydrogenated product thereof with at least one unsaturated compound selected from the group consisting of unsaturated epoxy compounds and unsaturated carboxylic compounds, and having a rate of graft modification of at least 10 mol % and a number average molecular weight (Mn) of 500 to 500,000, a production process thereof, and a crosslinking polymer composition comprising the modified thermoplastic norbornene polymer and a crosslinking agent.Type: GrantFiled: April 29, 1999Date of Patent: October 29, 2002Assignee: Nippon Zeon Co., Ltd.Inventor: Junji Kodemura
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Patent number: 6469098Abstract: Disclosed is a resin composition containing the following components (A), and (B) or optionally, (C), (D), and (E): (A) an atactic polystyrene or a mixture of an atactic polystyrene and a rubber-like elastic substance: 30 to 95 parts by weight; (B) a syndiotactic polystyrene having a melting point of not higher than 255° C.: 70 to 5 parts by weight; (C) a polyphenylene ether having an intrinsic viscosity of 0.5 deciliter/g or less as measured in chloroform at 25° C.; (D) an inorganic filler; and (E) a polymer having compatibility or affinity with components (A) and (B) and having a polar group. The styrene resin composition exhibits improved solvent resistance and remarkable impact resistance. The composition of the invention is produced by kneading the components within a resin temperature range between the melting point of component (B) and 270° C.Type: GrantFiled: September 13, 2000Date of Patent: October 22, 2002Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Akihiko Okada, Takuma Aoyama
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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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Publication number: 20020151641Abstract: The present invention relates to a method for preparing a weather resistant thermoplastic resin having excellent color matching properties and resident gloss. The method of the present invention comprises the steps of a) preparing a core rubber latex using alkyl acrylate monomers and aromatic vinyl monomers having a large refractive index, and b) grafting aromatic vinyl, vinyl cyan and methacrylate alkyl ester monomers using an oil soluble initiator.Type: ApplicationFiled: February 4, 2002Publication date: October 17, 2002Inventors: Yang-Hyun Shin, Keun-Hoon Yoo, Tae-Bin Ahn, Chan-Hong Lee
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Patent number: 6465595Abstract: A potentially hydrophilic resin comprises at least monomer units readily saponifiable under alkaline conditions to form carboxyl groups, carboxyl-containing monomer units, and hydroxyl-containing monomer units. A potentially hydrophilic resin composition comprises, in a liquid medium, the potentially hydrophilic and an adhesive component or film-forming component. A recycling method is provided for an article with a coating applied on a surface thereof. According to the recycling method, the coating on the surface of the article is formed with the potentially hydrophilic resin composition, and subsequent to use of the article, the article is treated with alkaline water to saponify methyl acrylate in the coating such that the coating is caused to swell, and the coating so swollen is removed from the article.Type: GrantFiled: March 13, 2000Date of Patent: October 15, 2002Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.Inventors: Minoru Takizawa, Hitoshi Naganuma, Michiei Nakamura, Naomi Oguma
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Patent number: 6465571Abstract: A polyolefin blend is presented having a propylene containing polymer as a base component, a portion of which is functionalized with a hydrophilic moiety; a toughening component of polymer selected from the group consisting of(A) a copolymer of ethylene and an alpha olefin and (B) a terpolymer of ethylene, an alpha olefin and a diene; an interfacial modifier in the form of an elastomeric block copolymer; and a filler.Type: GrantFiled: May 3, 2000Date of Patent: October 15, 2002Assignee: Solvay Engineered PolymersInventors: Marta Drewniak, Jhy-Yuan Her, Satchit Srinivasan, Edward Szczepaniak
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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: 6455626Abstract: The present invention teaches a method for enabling the formation of a high damping, soft polymer gel. The method includes: reacting a poly(alkenyl benzene-co-maleimide) polymer with a maleated polyalkylene and an alkyl diamine under substantially dry conditions sufficient to form a polyalkylene grafted poly(alkenyl benzene-co-maleimide) polymer product; and, dispersing the polyalkylene grafted poly(alkenyl benzene-co-maleimide) polymer product with an extender oil sufficient to form the gel. The present invention also contemplates a polymer gel composition, a polymer composition and an article manufactured from the polymer gel composition.Type: GrantFiled: June 5, 2001Date of Patent: September 24, 2002Assignee: Bridgestone CorporationInventors: Xiaorong Wang, Victor J. Foltz, Takahiro Matsuse, Naruhiko Mashita, Shinichi Toyosawa
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Patent number: 6451882Abstract: Compositions which have substantial weatherability and impact resistance include a substantially uniform blend of an acrylonitrile/styrene/acrylic polymeric material and a wood component in an amount effective as a filler in the composition. Methods for making such compositions include forming a substantially uniform physical mixture of such polymeric material and wood component.Type: GrantFiled: January 20, 2000Date of Patent: September 17, 2002Assignee: Hughes Processing, Inc.Inventor: Roderick E. Hughes
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Patent number: 6451897Abstract: A nanocomposite material comprises a smectite clay having exhangeable cations that has been treated with at least one organic swelling agent, uniformly dispersed in a graft copolymer having a backbone of a porous propylene polymer material, to which is graft polymerized at least one grafting monomer capable of being polymerized by free radicals, wherein the total inorganic content of the composite material is about 0.5% to about 10%, based on the total weight of the composite. The nanocomposite material is made by graft polymerizing at least one liquid monomer capable of being polymerized by free radicals onto a porous propylene polymer material in a non-oxidizing environment in the presence of a smectite clay and an organic free radical polymerization initiator, whereby the chains of polymerized monomer that are formed intercalate the clay and produce a uniform dispersion of clay particles within the particulate propylene polymer material.Type: GrantFiled: June 16, 2000Date of Patent: September 17, 2002Assignee: Basell Technology Company BVInventor: Suhas G. Niyogi
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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
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Patent number: 6433063Abstract: Directly paintable polymer compositions contain (1) a thermoplastic olefin, (2) a propylene homopolymer or propylene copolymer with ethylene or a C4-8 &agr;-olefin, grafted with an anhydride of an aliphatic &agr;,&bgr;-unsaturated dicarboxylic acid, (3) an oxidized polyethylene wax having a melting point of less than 116° C. and an acid number of less than 40, (4) a functionalized polymer that reacts with the anhydride groups of the grafted polymers, (5) an epichlorohydrin rubber and, optionally, (6) a polyolefin rubber grafted with an anhydride of an aliphatic &agr;,&bgr;-unsaturated dicarboxylic acid, (7) an ethylene polymer grafted with an anhydride of an aliphatic &agr;,&bgr;-unsaturated dicarboxylic acid, (8) a thermoplastic resin, and (9) an organic sulfonic acid salt of a group I or II metal, or mixtures thereof, the compositions are particularly suitable for electrostatic painting.Type: GrantFiled: June 30, 2000Date of Patent: August 13, 2002Assignee: Basell Technology Company BVInventor: Dominic A. Berta
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Patent number: 6420482Abstract: This invention concerns a composition comprising a blend of polyolefin with the reaction of a functionalized polyolefin and polyetheramine in which the polyetheramine is grafted into the functionalized polyolefin in a customary mixing apparatus. A process for producing the reaction product of functionalized polypropylene and polyetheramine by melting with polypropylene in a customary mixing apparatus is also disclosed. Blends of the present invention are advantageously useful to prepare paintable automotive body parts. This invention further includes dyeable polyolefin compositions containing the reaction product of functionalized polyolefin and polyetheramine. Dyeable polyolefin fibers, including polypropylene fibers, are disclosed, which may be made by melt spinning, and which may be employed to make woven. and non-woven fabric.Type: GrantFiled: September 26, 2000Date of Patent: July 16, 2002Assignee: Huntsman Petrochemical CorporationInventors: Richard Joseph Gilbert Dominguez, Christopher S. Henkee, Wheeler C. Crawford, Gerald W. Cummings, Kevin John Hess, Richard James Clark, Randall Keith Evans
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Patent number: 6417260Abstract: Compositions of a plasticized polyvinyl chloride resin, a polyolefin and/or a styrenic polymer, and a compatibilizer are disclosed. The compositions retain the mechanical properties of tensile strength, elongation, and a low brittle point, even after being subjected to high heat for an extended period of time.Type: GrantFiled: March 28, 2000Date of Patent: July 9, 2002Assignee: Teknor Apex CompanyInventors: Dexi Weng, John C. Andries, Keith G. Saunders