Patents Examined by Theodore E. Pertilla
  • Hydroxy terminated polycarbonates
    Patent number: 4814421
    Abstract: A method for the preparation of polycarbonate resins bearing terminal hydroxy ester groups comprises the interfacial polymerization of a dihydric phenol with a carbonyl halide in the presence of a molecular weight controlling proportion of a compound of the formula: ##STR1## wherein R represents alkylene of 1 to about 12 carbons. The novel product resins are useful as intermediate in the preparation of copolymers with, for example, polyesteramides.
    Type: Grant
    Filed: December 4, 1987
    Date of Patent: March 21, 1989
    Assignee: General Electric Company
    Inventor: Niles R. Rosenquist
  • Stabilized polyacetal compositions
    Patent number: 4814397
    Abstract: Incorporation of 0.1-10 weight percent of certain polymers and/or oligomers containing both hydroxy groups and at least one other functional group that is a stronger Lewis base than the hydroxy groups into polyacetal molding compositions results in improved thermal stability of such compositions.
    Type: Grant
    Filed: February 27, 1987
    Date of Patent: March 21, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Ernest R. Novak
  • High solids coatings with reactive diluent
    Patent number: 4812523
    Abstract: A high solids, thermosetting coating composition for painting substrates comprises low molecular weight acrylic polymer, low molecular weight polyester polymer, and low molecular weight urethane diluent, where the acrylic and polyester and urethane components each contain hydroxyl functionality and are coreactive with an amine derivative crosslinking resin to render the coating thermosetting.
    Type: Grant
    Filed: January 25, 1988
    Date of Patent: March 14, 1989
    Assignee: The Glidden Company
    Inventor: Perry A. Toman
  • Polymer blends
    Patent number: 4812514
    Abstract: Polycarbonate resin compositions are disclosed comprising: (a) a polycarbonate resin; (b) an ABS-type terpolymer; and (c) at least one polyether-polycarbonate-polyether ABA-type triblock copolymer. These compositions are characterized by an improved Izod toughness at lower temperatures.
    Type: Grant
    Filed: December 21, 1987
    Date of Patent: March 14, 1989
    Assignee: The Dow Chemical Company
    Inventors: Duane B. Priddy, John R. Schroeder
  • Polyether-polycarbonate-polyether triblock copolymers
    Patent number: 4812530
    Abstract: New polymeric compositions comprising polyether-polycarbonate-polyether triblock copolymers and a method of preparation comprising reacting a monohydroxy polyether in an organic with a carbonate precursor such as phosgene, adding the resultant mixture to a dihydric compound such as bisphenol A, water, an organic solvent and an acid acceptor, controlling the pH of the polymerizing mixture at about 11 and, after the polymerization is complete, decreasing the pH to about 8 and recovering the product.
    Type: Grant
    Filed: December 28, 1987
    Date of Patent: March 14, 1989
    Assignee: The Dow Chemical Company
    Inventors: Duane B. Priddy, Alan Letton
  • Amino methyl propanol blocked aromatic sulfonic acid
    Patent number: 4812506
    Abstract: A blocked acid catalyst of an aromatic sulfonic acid blocked with amino methyl propanol and coating compositions containing the blocked acid catalyst.
    Type: Grant
    Filed: May 15, 1987
    Date of Patent: March 14, 1989
    Assignee: E. I Du Pont De Nemours and Company
    Inventors: Thomas C. Gilmer, David C. K. Chang
  • Resinous composition for coating use, which is excellent in weather resistance and in low temperature curing properties, its preparation and coating composition containing the same
    Patent number: 4810758
    Abstract: A resinous composition for coating use which is excellent in weather resistance and in low temperature curing properties, comprising a resin having resinous acid value based on carboxyl groups derived from its constituting tetrachlorophthalic acid of 2 to 8, a resinous acid value based on sulfonic acid groups derived from its constituting sulfophthalic acid of 0.5 to 5, and a functional group capable of reacting with a crosslinking agent to be compounded with the resin. The present resin is useful, in the combination form with a crosslinking agent, as a resinous vehicle of a coating composition which is excellent in curing properties, weather resistance, pigment dispersibility and storage stability and is specifically useful as an intermediate or top coat paint for automobile bodies or the like.
    Type: Grant
    Filed: March 12, 1987
    Date of Patent: March 7, 1989
    Assignee: Nippon Paint, Co., Ltd.
    Inventors: Hisaki Tanabe, Ryozo Takagawa, Hirotoshi Umemoto
  • Crosslinker compositions comprising amino resins, epoxies and styrene allyl alcohol copolymers
    Patent number: 4808652
    Abstract: Crosslinker compositions comprising an etherified amino resin, a styrene allyl alcohol copolymer and an epoxy resin. The crosslinker compositions are used to cure hydroxy functional coating vehicles to provide cured coatings resistant to staining.
    Type: Grant
    Filed: June 8, 1988
    Date of Patent: February 28, 1989
    Assignee: Monsanto Company
    Inventor: Kenneth J. Gardner
  • Composition comprising aromatic polycarbonate, polyolefin, ethylene vinyl alcohol copolymer, and a modified hydrogenated alkylidene vinyl aromatic block copolymer
    Patent number: 4806597
    Abstract: A composition which comprisesa. an aromatic polycarbonate,b. a polyolfefin,c. an ethylene vinyl alcohol copolymer,d. a hydrogenated alkylidene vinyl aromatic block copolymer graft modified with an unsaturated dicarboxylic acid or unsaturated dicarboxylic acid anhydride.
    Type: Grant
    Filed: October 29, 1987
    Date of Patent: February 21, 1989
    Assignee: General Electric Company
    Inventors: Robert R. Gallucci, Dana C. Bookbinder
  • Bisimide/polyhydantoin curable resins
    Patent number: 4806419
    Abstract: (1) Curable bisimide resins comprise a mixture of(a) 5 to 95% of at least one bisimide of the general formula I ##STR1## in which B represents a divalent radical containing a carbon-carbon double bond and A is a divalent radical containing at least two carbon atoms and(b) 95 to 5% of a polyhydantoin polymer of formula II ##STR2## wherein R.sub.1 represents an aromatic hydrocarbon radical, R.sub.2 represents hydrogen or an alkyl group having 1 to 6 carbon atoms, R.sub.3 represents an aromatic hydrocarbon radical, an alkyl radical having 4 to 10 carbon atoms optionally interrupted by one or more oxygen or sulphur atoms, and X is an integer of from 20 to 5000.
    Type: Grant
    Filed: March 6, 1987
    Date of Patent: February 21, 1989
    Assignee: The Boots Company plc
    Inventor: Horst Stenzenberger
  • Polyolefin/polycarbonate/polyolefin triblock copolymers
    Patent number: 4806599
    Abstract: New polymeric compositions comprising polyolefin-polycarbonate-polyolefin triblock copolymers and a method of preparation comprising reacting a monohydroxy polyolefin in an organic solvent with a carbonate precursor such as phosgene, adding the resultant mixture to bisphenol A, water, an organic solvent and an acid acceptor such as sodium hydroxide, controlling the pH of the polymerizing mixture at 11 and, after the polymerization is complete, decreasing the pH to 8 and recovering the product.
    Type: Grant
    Filed: December 21, 1987
    Date of Patent: February 21, 1989
    Assignee: The Dow Chemical Company
    Inventor: Duane B. Priddy
  • Melt blending of a carboxy terminated polystyrene oligomer with an aromatic polyester
    Patent number: 4804711
    Abstract: A process which comprises mixing a melt of an amorphous aromatic polyester with a melt of a carboxy terminated polystyrene oligomer, said oligomer having a number average molecular weight of from about 500 to 10,000.
    Type: Grant
    Filed: October 26, 1987
    Date of Patent: February 14, 1989
    Assignee: General Electric Company
    Inventor: Toshio Ishihara
  • Process for the preparation of maleimide copolymers and thermoplastic resin composition using the same
    Patent number: 4804706
    Abstract: The present invention provides a process for the preparation of maleimide copolymers by emulsion polymerization of an aromatic vinyl monomer, a vinyl cyanide monomer and a maleimide monomer in specific proportions wherein the polymerization is carried out by charging not less than a specific proportion of the aromatic vinyl monomer and optionally not more than a specific proportion of the vinyl cyanide monomer into the polymerization system before initiation of the polymerization; adding, continuously or dividedly, a mixture composed of the total amount of the maleimide monomer and the remainder of the other monomers to the polymerization system after initiation of the polymerization; maintaining the pH of the aqueous phase of the polymerization system in the range of 3 to 9 at the initiation of said polymerization; and using a redox catalyst containing an oil-soluble organic peroxide.
    Type: Grant
    Filed: March 2, 1987
    Date of Patent: February 14, 1989
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Kazuo Kishida, Yutaka Toyooka, Atsushi Kimura
  • Thermoplastic moulding compounds based on special graft polymers
    Patent number: 4804708
    Abstract: The present invention relates to thermoplastic moulding compounds based on thermoplastic polycarbonates, graft polymers and optionally thermoplastic copolymers, characterized in that the graft polymers contain at least one primary or secondary aliphatic acrylic acid ester or tert.-butyl acrylate or tert.-butyl methylacrylate incorporated by polymerization. The invention also relates to a process for the preparation of these thermoplastic moulding compounds.
    Type: Grant
    Filed: November 27, 1987
    Date of Patent: February 14, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Dieter Wittmann, Christian Lindner, Hans-Jurgen Kress, Horst Peters, Jochen Schoeps
  • Rinse soluble polymer film composition for wash additives
    Patent number: 4801636
    Abstract: A polymeric film material for the rinse release of wash additives comprises a blend of polyvinyl alcohol and an alkyl cellulose. A metalloid oxide cross-linking agent is present in an amount sufficient to sharply reduce the solubility rate of the film blend in an alkaline wash, yet allow dissolution in a less alkaline rinse. Optionally, a hydrophobic cationic species is included to further reduce the dissolution rate in the wash pH. The films remain intact during normal wash cycles and over a range of typical water temperatures, then rapidly dissolve in the rinse. The film can be used to microencapsulate an additive, or made into a water-soluble pouch, or as a soluble seal for a pouch or container.
    Type: Grant
    Filed: March 24, 1987
    Date of Patent: January 31, 1989
    Assignee: The Clorox Company
    Inventors: William L. Smith, Edward J. Kaufmann, Barry A. Sudbury
  • Nucleation process for inducing crystallization in poly(alpha olefins)
    Patent number: 4801637
    Abstract: The present invention relates to a process for nucleating olefin polymers prepared with high activity MgCl.sub.2 -supported Ti procatalysts and aluminum alkyl cocatalysts, the process involving heat treating the olefin polymers after polymerization and before melt compounding with an alcoholic solution of an aromatic carboxylic acid.
    Type: Grant
    Filed: August 27, 1987
    Date of Patent: January 31, 1989
    Assignee: Shell Oil Company
    Inventor: J. Douglas McCullough, Jr.
  • Polyester film having improved abrasion resistance manufactured from particle-filled polyester having nucleating agent dispersed therein
    Patent number: 4801640
    Abstract: The invention concerns a polyester film with improved abrasion resistance, dimensional stability, drawability and slip properties. The film is characterized by the fact that it contains 0.005 to 5.0% by weight of organic, preferably hardened or crosslinked, particles with narrow particle size distribution in a range between 0.01 and 5 microns, as well as a nucleating agent in an amount from 0.01 to 10% by weight, both values related to the weight of the polymers which form the film.
    Type: Grant
    Filed: January 9, 1986
    Date of Patent: January 31, 1989
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Hermann Dallmann, Werner Schaefer, Wolfgang Gawrisch, Hartmut Hensel
  • Functionalized thermoplastic polymers, blends prepared therefrom, and methods for preparing blends
    Patent number: 4800218
    Abstract: Thermoplastic materials may be functionalized and then blended with polyamides to form compatible products which contain a copolymer of the functionalized material and the polyamide.
    Type: Grant
    Filed: November 5, 1987
    Date of Patent: January 24, 1989
    Assignee: General Electric Company
    Inventors: Susan J. Hathaway, Robert A. Pyles
  • Polyolefinecarboxylic acids, their preparation and their use for preparing polyolefine-polycarbonate block copolymers
    Patent number: 4798873
    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: May 14, 1987
    Date of Patent: January 17, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Kurt P. Meurer, Helmut Waniczek, Gerd Sylvester, Josef Witte
  • Aqueous liquid filled polyurethane gels and method of making the same
    Patent number: RE32834
    Abstract: A liquid-filled polyurethane elastomer gel is fabricated from water, organic glycol and a polyisocyanate prepolymer. The prepolymer is formed from organic diisocyanate and organic diol or triol having a molecular weight of 3,000 to 10,000 and containing at least 40 percent by weight ethylene oxide adducts. The prepolymer is mixed with 3 to 20 times its weight of aqueous reactant including 25 to 65 percent by weight water and 75 to 35 percent by weight organic polyol. The resulting stable gel contains aqueous solutions of emulsions dispersed therein as small droplets comprising 75 to 95 percent of the weight of the resulting article. The liquid-filled polyurethane elastomer gel can be cast into shapes or can be formed into globs of random shape.
    Type: Grant
    Filed: May 11, 1987
    Date of Patent: January 17, 1989
    Assignee: Freeman Chemical Corporation
    Inventors: Howard P. Cordts, Joan E. Karloske