Patents Examined by Theodore E. Pertilla
  • Patent number: 4966942
    Abstract: A polycarbonate resin composition which comprises:50-80% by weight of a polycarbonate resin,20-45% by weight of a poly(1,4-butylene terephthalate) resin and5-30% by weight of an impact modifier, based on the resin composition, respectively,the impact modifier being a core-shell polymer comprising a core composed of a cross-linked rubbery polymer of an alkyl acrylate wherein the alkyl has 2-8 carbons and a shell composed of a homopolymer or a copolymer of methyl methacrylate which has a glass transition temperature of not less than 60.degree. C., and the core-shell polymer having an acetone soluble fraction of not more than 3% by weight based on the core-shell polymer.
    Type: Grant
    Filed: July 13, 1988
    Date of Patent: October 30, 1990
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Ichiro Sasaki, Junji Oshima, Minoru Yamada
  • Patent number: 4954569
    Abstract: The invention relates to the use of thermoplastic homopolycarbonates of 3,3'-dihydroxydiphenyl ether in quantities of 3% by weight to 30% by weight for modifying filsm of other thermoplastics than the thermoplastic homopolycarbonates of 3,3'-dihydroxydiphenyl ether, to a process for modifying films of these other thermoplastics, to the films obtainable by this process and to mixtures containing the homopolycarbonates mentioned and the other thermoplastics.
    Type: Grant
    Filed: June 26, 1989
    Date of Patent: September 4, 1990
    Inventors: Gunther Weymans, Klaus Berg, Ulrich Grigo, Karsten-Josef Idel, Ludwig Bottenbruch
  • Patent number: 4943619
    Abstract: A polycarbonate-epoxy polymer and method of making the same is presented. In accordance with the present invention, epoxide groups of epoxy resins react with in-chain carbonate groups of a polycarbonate in the presence of a catalyst to form a polycarbonate-epoxy polymer. When diepoxides and polycarbonates are reacted, the product produced is a three-dimensional network of chains cross-linked with carbonate groups. The cross-link density is controlled by adjusting the epoxy-carbonate ratio. The preferred catalyst comprises quarternary ammonium salts with tertiary amine and alkoxide catalyst being less preferred.
    Type: Grant
    Filed: December 19, 1988
    Date of Patent: July 24, 1990
    Assignee: The University of Connecticut
    Inventors: James P. Bell, Yunzhao Yu
  • Patent number: 4939216
    Abstract: A heat-curable coating material for cathodic electrocoating is water-dilutable on protonation with an acid and contains(A) from 50 to 95% by weight of a polymer, polycondensate or polyadduct containing primary and/or secondary amino groups, as a binder, and(B) from 5 to 50% by weight of a crosslinking agent obtainable by reacting(a) a polyurethane with(b) formaldehyde or a formaldehyde-donating compound and(c) one or more secondary aliphatic amines.
    Type: Grant
    Filed: July 12, 1989
    Date of Patent: July 3, 1990
    Assignee: BASF Lacke+ Farben Aktengesellschaft
    Inventors: Dirk Lawrenz, Hans Schupp, Thomas Schwerzel
  • Patent number: 4931503
    Abstract: A composition comprising an admixture of(a) an aromatic polycarbonate of intrinsic viscosity of from about 0.35 to about 0.41 dl/g, measured in methylene chloride at about 25.degree. C., said aromatic polycarbonate chain terminated with an endcapping agent which provides the polycarbonate with improved ductility and higher Tg when compared to a paratertiary butyl phenol encapped polycarbonate of the same intrinsic viscosity;(b) a core/shell copolymer comprising a conjugated diene with a Tg of less than or equal to -10.degree. C. as the core, said core being about 50 to 90 wt.
    Type: Grant
    Filed: December 28, 1988
    Date of Patent: June 5, 1990
    Assignee: General Electric Company
    Inventors: Omar M. Boutni, Linda H. Nelson, Dwight J. Patterson, Charles F. Pratt, Herman B. Savenije
  • Patent number: 4929689
    Abstract: The present invention relates to poly-(C.sub.2 -C.sub.10 -.alpha.-olefine)-carboxylic acids of Mw (weight average) 2000 to 350,000, to their preparation by oxidative degradation of polyolefines or by reaction of "Living" polyolefines with CO.sub.2, to their conversion into poly-(C.sub.2 -C.sub.10 -.alpha.-olefine)-carbonyl halides and to their use for preparing polyolefine/polycarbonate block copolymers and the block copolymers obtainable by the process according to the invention.
    Type: Grant
    Filed: September 27, 1988
    Date of Patent: May 29, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Kurt P. Meurer, Helmut Waniczek, Gerd Sylvester, Josef Witte
  • Patent number: 4929685
    Abstract: A polycarbonate resin of a copolymer of diethyleneglycol bis(allyl carbonate) with one of glycidyl acrylate and glycidyl methacrylate, its homopolymer and its copolymer, and further occasionally a copolymerizable compound can be easily modified with active amine at its surface, and the surface-modified copolymer of diethylene glycol bis(allyl carbonate) with glycidyl acrylate or methacrylate can be easily dyed with acid dye in a sharp color tone and can be used in an optical instrument demanded to have a high vividness of color.
    Type: Grant
    Filed: July 11, 1988
    Date of Patent: May 29, 1990
    Assignees: Nippon Oil and Fats Co., Ltd., PPG Industries, Inc.
    Inventors: Rikizo Kobashi, Shigeyuki Takase, Hiroyuki Enomoto, Yasushi Hayasaki, Toyohisa Kobayashi, Shingo Yamazaki
  • Patent number: 4929475
    Abstract: Stoving lacquers which are essentially useful in "coil coating" and provide a finish simulating that of a metallic lacquer comprise a stovable colored film-forming binder composition having colorless transparent particles dispersed therein.
    Type: Grant
    Filed: August 28, 1989
    Date of Patent: May 29, 1990
    Assignee: Hunter Douglas International N.V.
    Inventor: Hendrikus de Jong
  • Patent number: 4929674
    Abstract: This invention relates to mixtures of thermoplastic aromatic poly(ester)carbonates with thermoplastic polyurethanes containing special graft polymers and, optionally, suitable additives, to a process for their production and to the use of the mixtures according to the invention for the production of moldings, particularly by injection molding or extrusion.
    Type: Grant
    Filed: April 4, 1989
    Date of Patent: May 29, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Werner Nouvertne, Franz-Josef Gielen, Peter Tacke, Ulrich Grigo, Bernd Quiring, Christian Lindner
  • Patent number: 4929676
    Abstract: Impact resistant polycarbonate blends, which may be extruded without pre-drying, are prepared from an aromatic polycarbonate, an aromatic polyester, a carbon monoxide polymer and a polyalkyleneoxide rubber, and optionally, a grafted copolymer or mixture of grafted copolymers.
    Type: Grant
    Filed: April 24, 1989
    Date of Patent: May 29, 1990
    Assignee: The Dow Chemical Company
    Inventor: Michael K. Laughner
  • Patent number: 4929672
    Abstract: A polycarbonate blend of good impact strength, solvent resistance and weldline properties is prepared by admixing with polycarbonate a grafted olefin/carbon monoxide copolymer and, optionally, a toughening agent such as a rubber.
    Type: Grant
    Filed: May 4, 1989
    Date of Patent: May 29, 1990
    Assignee: The Dow Chemical Company
    Inventor: Michael K. Laughner
  • Patent number: 4927883
    Abstract: A process for preparing crosslinked poly .beta.-alanine in the form of microspheres comprises (a) polymerizing acrylamide in a tert. butanol/toluene solvent mixture in the presence of a polymerization initiator and an octadecene-maleic anhydride copolymer as a suspension agent; (b) submitting the resulting suspension of poly .beta.-alanine to a crosslinking reaction using a dialdehyde as the crosslinking agent; and (c) isolating the crosslinked poly .beta.-alanine microspheres. These microspheres exhibit a low size dispersity.
    Type: Grant
    Filed: December 13, 1988
    Date of Patent: May 22, 1990
    Assignee: Societe Anonyme dite: L'Oreal
    Inventors: Claudine Lapoiriere, Claude Mahieu, Christos Papantoniou
  • Patent number: 4923926
    Abstract: A thermoplastic molding composition comprising 70 to 98 parts of an aromatic polycarbonate having a viscosity number of from 40 to 100 cm.sup.3 /g and 2 to 30 parts of a polyoctenylene or a modified polyoctenylene.
    Type: Grant
    Filed: April 5, 1989
    Date of Patent: May 8, 1990
    Assignee: Huels Aktiengesellschaft
    Inventors: Ralf Schueler, Joachim Muegge, Michael Droescher, Wilfried Bartz, Roland Feinauer
  • Patent number: 4923933
    Abstract: Disclosed are blends of (a) an aromatic brominated polycarbonate; and (b) a polyphthalatecarbonate. Preferably, the blends also contain an amount of a silicone-polyimide. The blends exhibit good flame resistance and low smoke generation.
    Type: Grant
    Filed: January 6, 1989
    Date of Patent: May 8, 1990
    Assignee: General Electric Company
    Inventor: Herbert L. Curry
  • Patent number: 4923920
    Abstract: This invention relates to mixtures of at least one elastomer latex with at least one dispersion of an aromatic polycarbonate, aromatic polyester or aromatic polyester carbonate.
    Type: Grant
    Filed: June 20, 1988
    Date of Patent: May 8, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Thomas Scholl, Hermann Perrey, Martin Matner
  • Patent number: 4920175
    Abstract: Promotors for a crosslinking reaction involved in the curing of a system comprising crosslinkable polymers are bound to polymeric microparticles having a diameter of about 0.01 to 6 microns prepared by polymerizing a mixture of ethylenically unsaturated monomers. The microparticles carrying the crosslinking reaction promotor may be incorporated to coating compositions, printing inks, sealants, adhesives and other polymeric products in place of conventional crosslinking reaction promotors.
    Type: Grant
    Filed: July 28, 1988
    Date of Patent: April 24, 1990
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Kazunori Kanda, Shinichi Ishikura, Keizou Ishii, Akio Kashihara
  • Patent number: 4920203
    Abstract: This invention relates to medical devices formed totally or in part from homopolymers or copolymers comprising recurring carbonate moieties.
    Type: Grant
    Filed: August 2, 1988
    Date of Patent: April 24, 1990
    Assignee: Allied-Signal Inc.
    Inventors: Reginald T. Tang, Frank Mares, William J. Boyle, Jr., Tin-Ho Chiu, Kundabhai M. Patel
  • Patent number: 4918134
    Abstract: In a process for partially curing a powdery polyarylene sulfide resin which comprises heating the powdery resin either in the absence or presence of oxygen while agitating so as to attain an increased melt viscosity in a range suitable for further processing or molding of the resin, an improvement comprising that the resin together with an added specific inorganic additive undergoes the partial curing treatment at temperatures in the range of from a temperature just below the melting point of the starting resin down to a temperature lower by 80.degree. C. than said melting point. The additive is selected from the group consisting of silica, hydrophobic silica, talc and calcium carbonate and mixtures thereof.
    Type: Grant
    Filed: March 3, 1989
    Date of Patent: April 17, 1990
    Assignees: Tosoh Corporation, Toso Susteel Co., Ltd.
    Inventors: Toshikazu Kato, Hiroshi Inoue, Noriaki Emura
  • Patent number: 4918116
    Abstract: Improved high temperature resistant molding materials containing customary filler materials and additives and a carbon forming bonding agent which is a phenol novolac with a molar ratio of phenol to formaldehyde of 1 to 0.2 to 1 to 0.35 of high quality and free of solvents useful as refractory products, carbon materials, abrasive wheels, friction lining and the like.
    Type: Grant
    Filed: February 17, 1989
    Date of Patent: April 17, 1990
    Assignee: Rutgerswerke AG
    Inventors: Arno Gardziella, Karl-Heinz Schwieger, Peter Adolphs, Josef Suren
  • Patent number: 4918149
    Abstract: A polyphthalatecarbonate/polycarbonate blend exhibits improved resistance to hazing and yellowing from prolonged exposure to ultraviolet radiation. The blend is useful in the production of transparent, ultraviolet radiation stable sheets and films.
    Type: Grant
    Filed: November 4, 1988
    Date of Patent: April 17, 1990
    Assignee: General Electric Company
    Inventors: Donald C. Clagett, Daniel W. Fox, Sheldon J. Shafer, Paul D. Sybert