Patents Examined by R. M.
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Patent number: 5214101Abstract: A thermosetting powder coating composition which has good handling properties and which has a good bland of physical properties such as appearance, flexibility, hardness, solvent resistance, corrosion resistance and exterior durability is disclosed. The composition comprises a co-reactable particulate mixture of a carboxylic acid group-containing acrylic polymer, a second carboxylic acid group-containing polyurethane having sufficient crystallinity to assist in flow of the powder coating compositions, a beta-hydroxyalkylamide crosslinking agent and an amorphous acid group-containing polyurethane.Type: GrantFiled: August 24, 1992Date of Patent: May 25, 1993Assignee: PPG Industries, Inc.Inventors: Paul H. Pettit, Jr., Debra L. Singer, Marvin L. Kaufman
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Patent number: 5212242Abstract: The invention relates to a coating composition containingA) 50 to 90% by weight of one or more hydroxyl-containing addition polymers, prepared by copolymerization of ethylenically unsaturated monomers which are in part hydroxyalkyl esters of .alpha.,.beta.-ethylenically unsaturated carboxylic acids andB) 10 to 50% by weight of one or more amino resin crosslinking agentsthe sum of the proportions by weight of A and B being 100% by weight, and suitable auxiliaries and additives, optionally pigments, optionally fillers, organic solvent and an acid catalyst.The coating composition is one wherein the acid catalyst used comprises1) sulfo- or sulfonio[sic]-succinic esters which each contain at least one hydroxyl group and/or2) sulfo- or sulfonio[sic]-succinic polyesters which each contain at least one hydroxyl group.The invention furthermore relates to a process for the preparation of the coating compositions according to the invention and to their use as an automobile repair finish or as a stoving paint.Type: GrantFiled: October 29, 1991Date of Patent: May 18, 1993Assignee: BASF Lache+Farben AktiengesellschaftInventors: Lutz-Werner Gross, Stefan Wieditz, Werner-Alfons Jung
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Patent number: 5210141Abstract: Disclosed in a delustered, thermally shrinkable polyvinyl chloride film which is obtained by extruding and orienting a polyvinyl chloride resin composition in which the polyvinyl chloride is a mixture of (A) a partially crosslinked polyvinyl chloride resin and (B) a non-crosslinked polyvinyl chloride resin in an (A)/(B) weight ratio of from 15/85 to 80/20; and in which the average polymerization degree of tetrahydrofuran-soluble portion of the polyvinyl chloride resin (B) is greater than that of tetrahydrofuran-soluble portion of the polyvinyl chloride resin (A).Type: GrantFiled: February 18, 1992Date of Patent: May 11, 1993Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Takeji Yanagisawa, Yasutoshi Soda
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Patent number: 5208082Abstract: A blend of 5 to 95 percent of an ethylene vinyl alcohol copolymer and 95 to 5 percent of an amorphous polyamide having fewer than about 0.100 equivalents of carboxyl end groups per kilogram of polyamide exhibits improved oxidative and thermal stability. The blend is useful for preparing films and multiple layered structures including thermoformed structures and oriented shrink films.Type: GrantFiled: March 6, 1992Date of Patent: May 4, 1993Assignee: E. I. Du Pont de Nemours and CompanyInventor: Richard T. Chou
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Patent number: 5208293Abstract: A rubber composition having low friction is proposed which contains a thermoplastic fluororesin, a thermosetting fluororubber and a low-molecular weight fluorine-containing polymer.Type: GrantFiled: October 26, 1990Date of Patent: May 4, 1993Assignee: NTN Engineering Plastics CorporationInventors: Yoshio Oki, Kazutoshi Sugitani, Takeo Kaneko, Yukimasa Shimizu, Hidetsugu Yagi
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Patent number: 5198496Abstract: Following this procedure for the production of thermoplastic elastomer mixtures, dynamic vulcanization is performed at temperatures ranging between approximately 125 and 250 deg. C. and preferably between 150 and 200 deg. C., and with the aid of a free radical generating agent, on a mixture made up of: a) 95-60% by weight of one or several thermoplastic block copolymers of a monoalkenylarene and a coupled diene having at least two end blocks of monoalkenylarene polymer A and at least one middle block of a polymer of coupled diene O the content of said block A ranging between approximately 8 and 55% by weight respect to the copolymer, whose flow rate must exceed 0.01 and b) 5-40% by weight of one or several copolymers of ethylene and vinyl acetate, containing approximately between 5 and 50% by weight of vinyl acetate, preferably between 15 and 35% of vinyl acetate and with a flow rate between approximately 0.1 and 50, preferably between 0.1 and 10.Type: GrantFiled: December 13, 1990Date of Patent: March 30, 1993Assignee: Pepsol Quimica S.A.Inventors: Juan M. A. Alvarez, Eusebio F. Miron, Jose M. T. Lopez
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Patent number: 5180776Abstract: A primer composition has an excellent bonding ability to materials such as polyethylene, polypropylene and synthetic rubbers and is easily bonded to functional coatings. A composite layer of a coating and the primer composition having a function of addition is formed on the surface of these materials by coating or the like. A primer composition is employed which is suitable for such uses wherein a polymer of an unsaturated dicarboxylic acid and a polyolefin or a chlorine denaturated product thereof is used as a main component and a chlorosulfonated polyethylene is applied to improve heat resistance.Type: GrantFiled: November 5, 1991Date of Patent: January 19, 1993Assignee: Chugoku Marine Paints, Ltd.Inventors: Minoru Kitayama, Harumi Morifusa, Katsumi Kondoh
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Patent number: 5175213Abstract: A styrene-based resin composition comprising (A) a styrene-based polymer and (B) a rubber-like polymer dispersed in the styrene-based polymer. The dispersed particles of the rubber-like polymer comprise a styrene-butadiene-based block copolymer comprising 5 to 95% by weight of a conventional diblock-type polymer and 95 to 5% by weight of a tapered block-type polymer, wherein the butadiene unit content of the styrene-butadiene-based block copolymer is 6 to 16% by weight, based on the weight of the composition. The particles have a weight ratio of gel content to rubber-like polymer of 1.1:1 to 4.0:1 and have a swelling index of 5 to 20. The particles have an area average diameter of 0.1 to 0.9 .mu.m, with a ratio of area particle diameter to number average particle diameter of 1.0 to 1.8. The styrene-based resin composition has a high Izod impact strength and a high drop-weight impact strength, and further has excellent gloss and stiffness properties.Type: GrantFiled: June 4, 1990Date of Patent: December 29, 1992Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Yoshiyuki Suetsugu, Yutaka Tsubokura, Kazuo Sato
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Patent number: 5137993Abstract: A radical polymerizable composition comprising(A) a compound having a pi-electron conjugated structure and(B) a radical polymerizable compound, which is useful for molding into an arbitrary shape, which can be rendered electrically conductive and which is, therefore, useful as a material for electrodes or circuits in the electrical and electronic industry.Type: GrantFiled: May 18, 1990Date of Patent: August 11, 1992Assignee: Showa Denko K.K.Inventors: Masao Kobayashi, Reiko Otsuka
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Patent number: 5135752Abstract: A matrix for a buccal dosage form which melts in the oral cavity at body temperature but will not spontaneously deform at higher temperatures encountered in shipment and storage comprises:______________________________________ Low MW Polyethylene glycol 75-90% (M.P. about 37.degree. C.) Medium to high MW polyethylene glycol 0-4% Long chain saturated carboxylic acid 0-4% Polyethylene oxide 0.1-4% (MW 100,000-5,000,000) Colloidal silica 10-20%.Type: GrantFiled: October 14, 1988Date of Patent: August 4, 1992Assignee: Zetachron, Inc.Inventor: Wallace C. Snipes
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Patent number: 5118546Abstract: The present invention relates to an elastomeric composition comprising a blend of from about 25 to about 75 percent by weight of polychloroprene and from about 75 to about 25 percent by weight of epoxidized natural rubber having a level of epoxide modification in the range of from about 15 to 85 mole percent. These blends may be incorporated along with conventional sulfur-vulcanized elastomers to provide new and improved compounded rubbers particularly suited for use in tire tread applications.Type: GrantFiled: August 3, 1990Date of Patent: June 2, 1992Assignee: The Goodyear Tire & Rubber CompanyInventors: Donald J. Burlett, Richard G. Bauer
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Patent number: 5112910Abstract: Process for the preparation of mixtures of thermoplastic polymers in powder form from aqueous emulsions ofa) particulate, partly crosslinked rubber-like copolymers of a C.sub.2 -C.sub.8 -alkyl acrylate and/or butadiene with (based on the copolymer) up to 40 wt. % acrylonitrile, styrene or C.sub.1 -C.sub.4 -alkyl methacrylate,b) a thermoplastic resin, and if appropriatec) a rubber-rich graft polymer of styrene, .alpha.-methylstyrene, acrylonitrile, methyl methacrylate and/or alkyl acrylate on a diene or alkyl acrylate rubber having a rubber content of 50 to 95 wt. %,wherein aqueous emulsions of a) and b) and if appropriate c) having polymer contents of 15 to 50 wt. % are mixed with a coagulate solution simultaneously, but in separate streams, continuously or semi-continuously at 20.degree. to 100.degree. C., the polymers a) and b) and if appropriate c) being coagulated, the streams are combined and the polymer mixture is then separated off.Type: GrantFiled: August 12, 1991Date of Patent: May 12, 1992Assignee: Bayer AGInventors: Karl-Erwin Piejko, Christian Lindner, Ralph Ostarek, Hans-Eberhard Braese, Karl-Heinz Ott
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Patent number: 5102949Abstract: Ethylenically unsaturated carbamates are prepared by reaction of unsaturated isocyanates with the hydroxy groups of polyvinyl acetals. The ethylenically unsaturated carbamates either alone or formulated with unsaturated co-reactants such as (meth)-acryloyl monomers and oligomers, maleates and fumarates provide radiation curable coating compositions.Type: GrantFiled: August 19, 1991Date of Patent: April 7, 1992Assignee: Monsanto CompanyInventors: William A. Dupont, George E. Sheldrick
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Patent number: 5079296Abstract: Tough transparent thermoplastics blends may be prepared by blending 10 to 99 weight percent of a block copolymer; 0.1 to 1 weight percent of particulate rubber having a particle size from 0.1 to 10 microns; and the balance a clear glassy polymer. These clear polymers are useful in a number of applications, particularly for those applications requiring quite high toughness and transparency such as packaging, containers or protective covering.Type: GrantFiled: July 21, 1989Date of Patent: January 7, 1992Assignee: Polysar LimitedInventors: Ronald J. Thompson, James Lunt, John C. Lamont, John C. Kwok
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Patent number: 5038418Abstract: A bathroom waste collection and disposal unit for mounting on a floor of an enclosure includes a tank of unitary construction having a horizontal portion defining a refuse reservoir and a vertical portion open to the horizontal portion for refuse gases and to accommodate a pump. A toilet is mounted on the top surface of the horizontal portion in fluid communication with the reservoir of the horizontal portion of the tank. The horizontal portion includes a plurality of columns within the reservoir extending between the floor and top wall of the horizontal portion. The tank also includes a baffle housing for enclosing the float of the refuse pump to meter the rate of flow of water flowing away from the pump float as the pump is actuated to discharge refuse from the reservoir.Type: GrantFiled: November 3, 1988Date of Patent: August 13, 1991Assignee: Zoeller CompanyInventor: William J. Frey
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Patent number: 5028658Abstract: A sheet formed of a polyblend comprising, on a weight basis, a) 30 to 90% polyvinyl butyral containing about 11 to 30% hydroxyl groups and b) 70 to 10% thermoplastic polyurethane which is the reaction product of:(i) polyether polyol or a mixture of polyether polyol and polyester polyol; and(ii) aliphatic diisocyanate, aromatic diisocyanate or a mixture of aliphatic and aromatic diisocyanates;the combined percentages of a) plus b) in the polyblend always equaling 100%; such sheet at 0.76 mm thickness having no greater than 2% haze.Type: GrantFiled: September 18, 1989Date of Patent: July 2, 1991Assignee: Monsanto CompanyInventors: Donald J. David, Thomas F. Sincock
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Patent number: 5027450Abstract: An extendible and retractable spa jet in the retracted position resides in the side wall of a spa or tub and is connected to, and operated by, the existing pressurized water and/or air supply. In the retracted position it serves as a conventional fixed jet. When desired, it may be pulled outwardly from the side wall of the enclosure and used as a hand-held massage device to achieve concentrated, intensified massaging action at localized areas of the body not possible with fixed spa jets.Type: GrantFiled: July 21, 1989Date of Patent: July 2, 1991Inventor: Harold Lang
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Patent number: 5015259Abstract: A stain resistant composition for fibers having polyamide linkages prepared by polymerizing an .alpha.-substituted acrylic acid or ester in the presence of a sulfonated aromatic formaldehyde condensation polymer, and methods for making and applying the composition.Type: GrantFiled: May 10, 1990Date of Patent: May 14, 1991Assignee: Peach State Labs, Inc.Inventors: Thomas H. Moss, III, Ralph R. Sargent, Michael S. Williams
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Patent number: 4985941Abstract: This hydrotherapy machine has a top-opening tank with a floor spaced above the tank bottom. The periphery of the floor is spaced from the tank wall. Liquid under pressure is admitted to the space between the floor and the tank bottom, and proceeds upwardly through the gap between the tank wall and the floor. The circulation continues along the tank wall, and downward to a central outlet traversing the floor and the tank bottom. An inward radial flow at the top completes the primary circulation pattern.Type: GrantFiled: December 23, 1988Date of Patent: January 22, 1991Assignee: Evans Hydrotherapy Corp.Inventor: Bruce Pommerening
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Patent number: 4969587Abstract: A portable container that holds shampoo, hair conditioner and a bar of soap. The container includes three subcompartments, each of which is dedicated to the containment of a particular toiletry item. In a first embodiment, the lid of the container is hollow and is subdivided into compartments for shampoo and hair conditioner and the lid is hingedly connected to the base of the container within which a bar of soap is contained. In a second embodiment, the soap compartment holds the soap on end and the shampoo and hair conditioner are maintained in separate compartments that surmount one end of the soap dish. The containers of both embodiments are provided with an elongate looped rope so that the container may be draped around the neck of a user.Type: GrantFiled: May 23, 1989Date of Patent: November 13, 1990Inventor: Keith D. Miller