Patents Examined by R. M.
  • Patent number: 5214101
    Abstract: 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: Grant
    Filed: August 24, 1992
    Date of Patent: May 25, 1993
    Assignee: PPG Industries, Inc.
    Inventors: Paul H. Pettit, Jr., Debra L. Singer, Marvin L. Kaufman
  • Patent number: 5212242
    Abstract: 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: Grant
    Filed: October 29, 1991
    Date of Patent: May 18, 1993
    Assignee: BASF Lache+Farben Aktiengesellschaft
    Inventors: Lutz-Werner Gross, Stefan Wieditz, Werner-Alfons Jung
  • Patent number: 5210141
    Abstract: 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: Grant
    Filed: February 18, 1992
    Date of Patent: May 11, 1993
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Takeji Yanagisawa, Yasutoshi Soda
  • Patent number: 5208082
    Abstract: 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: Grant
    Filed: March 6, 1992
    Date of Patent: May 4, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Richard T. Chou
  • Patent number: 5208293
    Abstract: 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: Grant
    Filed: October 26, 1990
    Date of Patent: May 4, 1993
    Assignee: NTN Engineering Plastics Corporation
    Inventors: Yoshio Oki, Kazutoshi Sugitani, Takeo Kaneko, Yukimasa Shimizu, Hidetsugu Yagi
  • Patent number: 5198496
    Abstract: 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: Grant
    Filed: December 13, 1990
    Date of Patent: March 30, 1993
    Assignee: Pepsol Quimica S.A.
    Inventors: Juan M. A. Alvarez, Eusebio F. Miron, Jose M. T. Lopez
  • Patent number: 5180776
    Abstract: 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: Grant
    Filed: November 5, 1991
    Date of Patent: January 19, 1993
    Assignee: Chugoku Marine Paints, Ltd.
    Inventors: Minoru Kitayama, Harumi Morifusa, Katsumi Kondoh
  • Patent number: 5175213
    Abstract: 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: Grant
    Filed: June 4, 1990
    Date of Patent: December 29, 1992
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Yoshiyuki Suetsugu, Yutaka Tsubokura, Kazuo Sato
  • Patent number: 5137993
    Abstract: 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: Grant
    Filed: May 18, 1990
    Date of Patent: August 11, 1992
    Assignee: Showa Denko K.K.
    Inventors: Masao Kobayashi, Reiko Otsuka
  • Patent number: 5135752
    Abstract: 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: Grant
    Filed: October 14, 1988
    Date of Patent: August 4, 1992
    Assignee: Zetachron, Inc.
    Inventor: Wallace C. Snipes
  • Patent number: 5118546
    Abstract: 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: Grant
    Filed: August 3, 1990
    Date of Patent: June 2, 1992
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Donald J. Burlett, Richard G. Bauer
  • Patent number: 5112910
    Abstract: 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: Grant
    Filed: August 12, 1991
    Date of Patent: May 12, 1992
    Assignee: Bayer AG
    Inventors: Karl-Erwin Piejko, Christian Lindner, Ralph Ostarek, Hans-Eberhard Braese, Karl-Heinz Ott
  • Patent number: 5102949
    Abstract: 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: Grant
    Filed: August 19, 1991
    Date of Patent: April 7, 1992
    Assignee: Monsanto Company
    Inventors: William A. Dupont, George E. Sheldrick
  • Patent number: 5079296
    Abstract: 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: Grant
    Filed: July 21, 1989
    Date of Patent: January 7, 1992
    Assignee: Polysar Limited
    Inventors: Ronald J. Thompson, James Lunt, John C. Lamont, John C. Kwok
  • Patent number: 5038418
    Abstract: 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: Grant
    Filed: November 3, 1988
    Date of Patent: August 13, 1991
    Assignee: Zoeller Company
    Inventor: William J. Frey
  • Patent number: 5028658
    Abstract: 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: Grant
    Filed: September 18, 1989
    Date of Patent: July 2, 1991
    Assignee: Monsanto Company
    Inventors: Donald J. David, Thomas F. Sincock
  • Patent number: 5027450
    Abstract: 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: Grant
    Filed: July 21, 1989
    Date of Patent: July 2, 1991
    Inventor: Harold Lang
  • Patent number: 5015259
    Abstract: 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: Grant
    Filed: May 10, 1990
    Date of Patent: May 14, 1991
    Assignee: Peach State Labs, Inc.
    Inventors: Thomas H. Moss, III, Ralph R. Sargent, Michael S. Williams
  • Patent number: 4985941
    Abstract: 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: Grant
    Filed: December 23, 1988
    Date of Patent: January 22, 1991
    Assignee: Evans Hydrotherapy Corp.
    Inventor: Bruce Pommerening
  • Patent number: 4969587
    Abstract: 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: Grant
    Filed: May 23, 1989
    Date of Patent: November 13, 1990
    Inventor: Keith D. Miller