Patents Examined by Mary Critharis
  • Patent number: 5364913
    Abstract: A thermosetting composition is prepared by reacting a highly crosslinked nylon-1 which contains structural units corresponding to ##STR1## where R is an organic radical with a isocyanate-reactive compound. In carrying out the reaction the molar ratio of carbonyl groups to NCO-reactive groups is about 0.5:1 to 20:1. Desirable properties characterize the reaction product thus prepared.
    Type: Grant
    Filed: July 28, 1993
    Date of Patent: November 15, 1994
    Assignee: Miles Inc.
    Inventors: Aaron D. Meltzer, Douglas A. Wicks, Harald Pielartzik
  • Patent number: 5364852
    Abstract: Compact or cellular elastomers containing urethane and urea groups are prepared by reactinga) at least one organic and/or modified organic polyisocyanateb) at least one N-propoxylated polyoxyalkylene-polyamine containing at least 50% of secondary amino groups or a mixture of said N-propoxylated polyoxyalkylene-polyamines and polyoxyalkylene-polyamines containing 2 to 4 primary amino groups and having a molecular weight of from 1000 to 8000,c) at least one alkyl-substituted aromatic polyamine having a molecular weight up to 500, in the presence or absence ofd) catalysts and, if desired,e) blowing agents,f) auxiliaries and/org) additives.
    Type: Grant
    Filed: April 29, 1993
    Date of Patent: November 15, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Werner Hinz, Christian Maletzko, Johannes Becker, Guenter Matzke
  • Patent number: 5349041
    Abstract: The present invention relates to water dilutable, urethane group-containing polyester polyols having an acid number of 6 to 45 mg KOH/g, wherein 25 to 100% of the acid groups are neutralized by bases, a hydroxyl number of 20 to 250 mg KOH/g, a molecular weight (M.sub.w) of 2,000 to 150,000 and a urethane content (--NH--CO--O--) of 2 to 16% by weight, wherein the polyester polyol is the at least partly neutralized reaction product ofa) 35 to 90% by weight of branched polyester polyols having a hydroxyl number of 40 to 600 and prepared froma1) 0 to 60% by weight of monocarboxylic acids,a2) 6 to 65% by weight of di- and/or tricarboxylic acids or their anhydrides,a3) 10 to 70% by weight of alcohols,a4) 0 to 35% by weight of monoalcohols,a5) 0 to 30% by weight of hydroxycarboxylic acids, aminocarboxylic acids, lactones, lactams and aminoalcohols anda6) 0 to 45% by weight of polycarbonate polyols,b) 0.5 to 8.5% by weight of hydroxycarboxylic acidsc) 0 to 15% by weight of compounds containing OH, NH and/or NH.sub.
    Type: Grant
    Filed: May 12, 1993
    Date of Patent: September 20, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Harald Blum, Lothar Kahl, Nusret Yuva, Manfred Bock
  • Patent number: 5346960
    Abstract: A thermosetting powder coating composition having improved optical properties, such as orange peel, gloss and Distinctness of Image (DOI), which includes a reactable mixture of a carboxylic acid group-containing polyester or acrylic, a fatty acid hydroxyalkylamide group-containing material and beta-hydroxyalkylamide curing agent.
    Type: Grant
    Filed: February 22, 1993
    Date of Patent: September 13, 1994
    Assignee: Rohm and Haas Company
    Inventors: Richard F. Merritt, Kurt A. Wood, Aurelia de la Cuesta Sheppard
  • Patent number: 5346755
    Abstract: A stain resistant, easily cleanable and flexible plastic coated film comprising a base film and a coating thereon wherein the base film comprises a polyvinyl chloride resin, a polymeric plasticizer, and a member selected from the group consisting of acrylonitrile-butadiene copolymer rubber and ethylene-n-butyl acrylate-carbon monoxide polymer and the coating comprises polymethyl methacrylate alone or together with a flexibilizing polymer such as vinyl chloride-vinyl acetate copolymer and/or a flexibilizing copolymer of methyl methacrylate. The coated film gives superior oil and stain resistance as compared to the base film or coating alone.
    Type: Grant
    Filed: November 4, 1993
    Date of Patent: September 13, 1994
    Assignee: Borden, Inc.
    Inventor: David R. Morse
  • Patent number: 5342890
    Abstract: The present invention relates to a coating composition which is suitable for coating plastics and contains a one- or two-component binder and, as an adhesion promoter, a chemically modified crystalline, chlorine-free polyolefin, which has an average molecular weight of 1,000 to 8,000, a non-uniformity of 1.0 to 6.5 and a content of nitrogen, oxygen, sulphur and/or silicon in the form of chemically incorporated functional groups of 1.5 to 17.5 wt % in total. The present invention also relates to a process for coating plastics using this coating composition and to the resulting coated plastics.
    Type: Grant
    Filed: February 25, 1993
    Date of Patent: August 30, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Kirkor Sirinyan, Joachim Petzoldt, Wolfgang Henning
  • Patent number: 5338588
    Abstract: The present invention contemplates a method of making a hollow section fiber reinforced composite assembly useful as a structural component wherein a first rigid, fiber reinforced, EB (electron beam) curable-thermoplastic composite member is formed by liquid castable molding (LCM) thermoplastic-forming material about a fiber reinforcement and a second rigid, fiber reinforced, EB curable-thermoplastic composite member is similarly formed. An EB-curable adhesive material is provided at an interface between the assembled composite members. The composite members are then partially fusion bonded (e.g. ultrasonic tack welded) together at regions of the interface devoid of adhesive to form a hollow section for subsequent curing. The hollow section is subjected to irradiation by high energy electrons effective to cure the adhesive material and the partially bonded first and second fiber reinforced, EB curable-thermoplastic members to a thermoset condition useful in structural applications.
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: August 16, 1994
    Assignee: Ticom Corporation
    Inventor: Charles R. Billiu
  • Patent number: 5336732
    Abstract: A process for forming a blend comprising a poly(phenylene ether) domains dispersed in a polyamide matrix, said process comprising the steps of:(a) forming a reaction mixture comprising a substituted or unsubstituted poly(phenylene ether), preferably one or more compatibilizers and a polyamide precursor; and(b) polymerizing said precursor to form a blend comprised polyamide matrix having poly(phenylene ether) domains dispersed therein.
    Type: Grant
    Filed: February 12, 1993
    Date of Patent: August 9, 1994
    Assignee: AlliedSignal Inc.
    Inventor: George J. Samuels
  • Patent number: 5334670
    Abstract: An elastomer is molded by a reaction injection molding of polyurethane resins, polyurea resins, polyurethane/urea resins and polyurea/amide resins in the presence of an internal release agent which is a polyester condensate of a saturated or unsaturated fatty acid having a hydroxy group produced by transesterification or a molecular end-aminated or iminated polyester condensate. The elastomer has a good releasing property and a good coating property.
    Type: Grant
    Filed: December 15, 1993
    Date of Patent: August 2, 1994
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Yuji Uchida, Yoshio Yoshida, Toshikazu Kaneda, Toshiaki Moriya, Tsutomu Kumazawa
  • Patent number: 5328962
    Abstract: Miscible polymer blends of high heat resistant acrylate-maleimide polymers containing from 1 to 99% or more by weight of the maleimided polymer with conventional poly (methyl methacrylate) polymer, the blends having higher glass transition temperatures than poly (methyl methacrylate) but substantially the same optical and mechanical properties as poly (methyl methacrylate) and compatible blends of high heat resistant acrylate-maleimide polymers, conventional acrylic impact modifier, and, optionally, conventional poly (methyl methacrylate).
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: July 12, 1994
    Assignee: ICI Acrylics, Inc.
    Inventor: Jyi-Sheng J. Shen
  • Patent number: 5324761
    Abstract: Disclosed are 2,4,6-trialkyl-3-hydroxybenzyl esters of monocarboxylic resin acids and olefin polymer compositions stabilized therewith.
    Type: Grant
    Filed: April 20, 1993
    Date of Patent: June 28, 1994
    Assignee: Himont Incorporated
    Inventor: Charles M. Wright
  • Patent number: 5310805
    Abstract: Disclosed is a polyvinyl chloride resin powder composition for rotational molding, which is prepared by dry-blending a plasticizer and a stabilizer with a polyvinyl chloride resin followed by incorporating from 0.1 to 5 parts by weight, to 100 parts by weight of the polyvinyl chloride resin, of a finely divided polyvinyl chloride resin having a viscosity average polymerization degree of from 2000 to 5000 into the resulting dry blend. Also disclosed is a method of producing a molded article by subjecting the composition to rotational molding. The composition has good powder flowability for rotational molding, and the molded article from the composition is free from pin holes and blocks on the surface thereof.
    Type: Grant
    Filed: October 22, 1992
    Date of Patent: May 10, 1994
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Toshio Igarashi, Akira Wakatsuki, Yuu Shida
  • Patent number: 5306788
    Abstract: An elastomer is molded by a reaction injection molding of polyurethane resins, polyurea resins, polyurethane/urea resins and polyurea/amide resins in the presence of an internal release agent which is a polyester condensate of a saturated or unsaturated fatty acid having a hydroxy group produced by transesterification or a molecular endaminated or iminated polyester condensate. The elastomer has a good releasing property and a good coating property.
    Type: Grant
    Filed: February 14, 1992
    Date of Patent: April 26, 1994
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Yuji Uchida, Yoshio Yoshida, Toshikazu Kaneda, Toshiaki Moriya, Tsutomu Kumazawa
  • Patent number: 5304617
    Abstract: This invention relates to a fluorine-containing copolymer which contains a fluoroolefin unit, a vinyl ester or vinyl ether unit, and a hydroxyl group-containing vinyl ether unit in amounts of from 40 to 60 mol%, from 25 to 55 mol% and from 5 to 25 mol%, respectively, and has an intrinsic viscosity of from 0.01 to 0.05 d.lambda./g as measured in an uncured state at 30.degree. C. in tetrahydrofuran, and the ratio of a weight-average molecular weight and a number-average molecular weight measured by a gel permeation chromatography being not more than 2.0, and a process for its production. The fluorine-containing copolymer of the present invention is excellent in weatherability, retains good coatability even if used as a high solid coating, and provide a coating film excellent in clarity.
    Type: Grant
    Filed: July 22, 1991
    Date of Patent: April 19, 1994
    Assignee: Asahi Glass Company Ltd.
    Inventors: Shun-ichi Kodama, Motoi Kamba, Isao Kimura, Kazunori Chiba
  • Patent number: 5300333
    Abstract: A biodegradable food container for holding and insulating food. The food container includes a wall structure constructed from heat-expanded grains bound together with a biodegradable bonding agent. In the preferred embodiment, the heat-expanded grains are popcorn and the bonding agent is a starch paste or other type of biodegradable bonding agent of food grade quality. The wall structure is formed by heating expandable grains to form the heat-expanded grains. The heat-expanded grains are then ground and mixed with the bonding agent to form a moldable popcorn mixture. The moldable popcorn mixture is molded to form a wall structure of a selected shape for holding and insulating food.
    Type: Grant
    Filed: March 29, 1993
    Date of Patent: April 5, 1994
    Assignee: The Enbiomass Group, Inc.
    Inventors: C. William Wilkerson, William G. Head, III
  • Patent number: 5296545
    Abstract: Urethane-catalyzed polyester-polyurethane hybrid resin molding compositions are prepared using a low profile additive to provide glass-reinforced articles that have improved surface profiles and improved processability compared to commercial low profile-modified unsaturated non-hybrid polyester resins.
    Type: Grant
    Filed: July 14, 1992
    Date of Patent: March 22, 1994
    Assignee: Cook Composites and Polymers
    Inventor: Michael S. Heise
  • Patent number: 5296544
    Abstract: Polyester-polyurethane hybrid resin molding compositions having low levels of unsaturation which are modified by the addition of a low profile additive to provide glass-reinforced articles that have improved surface profiles and improved processability compared to commercial low profile-modified unsaturated (non-hybrid) polyester resins.
    Type: Grant
    Filed: July 14, 1992
    Date of Patent: March 22, 1994
    Assignee: Cook Composites and Polymers
    Inventors: Michael S. Heise, Janet L. Zuffa
  • Patent number: 5294669
    Abstract: A thermoplastic resin composition, which is flexible and can easily be extruded, is obtained by blending (A) 100 parts by weight of a thermoplastic urethane elastomer with (B) 1-100 parts by weight of a thermoplastic graft copolymer obtained by graft polymerization of vinylidene fluoride with an elastomeric copolymer of at least two principal monomers including at least one fluorine-containing compound, e.g. vinylidene fluoride and chlorotrifluoroethylene, and an unsaturated peroxy compound. Compared with the urethane elastomer (A) itself, this resin composition is better in extrudability, lower in kinetic friction coefficient, weaker in surface tackiness of molded products and higher in resistance to heat aging.
    Type: Grant
    Filed: June 19, 1992
    Date of Patent: March 15, 1994
    Assignee: Central Glass Company, Limited
    Inventors: Chikashi Kawashima, Sunao Koga, Katunori Kawamura
  • Patent number: 5286791
    Abstract: Disclosed are impact modified graft copolymer compositions comprising (A) from 10 to 90% of a graft copolymer of a propylene polymer material having graft polymerized thereto one or more vinyl monomer(s), (B) from 90 to 10% of at least one broad molecular weight distribution propylene polymer material, and (C) from 2 to 40% of at least one rubber component, wherein (A)+(B)+(C) is 100%, and filled compositions thereof. The compositions are useful as stand-alone structural materials.
    Type: Grant
    Filed: May 29, 1992
    Date of Patent: February 15, 1994
    Assignee: Himont Incorporated
    Inventors: Anthony J. DeNicola, Jr., Michael R. Conboy
  • Patent number: 5283298
    Abstract: The present invention is directed to a hydrophilic composition which is the reaction product of a polyvinylpyrrolidone, an organic monoisocyanate, and an oxyalkylene group containing mono- or di- hydroxyl compound.
    Type: Grant
    Filed: July 20, 1993
    Date of Patent: February 1, 1994
    Assignee: Miles Inc.
    Inventors: Ashok M. Sarpeshkar, Peter H. Markusch, Charles S. Gracik