Patents Examined by Lewis T. Jacobs
  • Method of manufacturing single-component polyurethane baking enamels
    Patent number: 4879356
    Abstract: A method of manufacturing a single-component PUR baking enamel comprising preparing a binder which is the reaction product of a partially blocked polyisocyanate (A) having a free NCO content>10 wt % and a total NCO content of 21-37 wt. % and a hydroxyl group-containing polyhydroxy compound having more than two hydroxy groups per molecule, and combining the reaction product with baking enamel additives in a solvent employable for baking enamels.
    Type: Grant
    Filed: September 9, 1988
    Date of Patent: November 7, 1989
    Assignee: Huels Aktiengesellschaft
    Inventor: Rainer Gras
  • Self-lubricating thermoplastic resin wear part
    Patent number: 4879331
    Abstract: A thermoplastic resin composition comprises (A) 99.9 to 60 parts by weight of a thermoplastic polyester or a polyacetal, (B) 0.05 to 20 parts by weight of a silicone oil having a viscosity of 150,000 cSt or larger and (C) 0.05 to 20 parts by weight of a lubricating oil having a viscosity of 3,000 cSt or smaller and is improved in durability to abrasion.
    Type: Grant
    Filed: May 24, 1988
    Date of Patent: November 7, 1989
    Assignee: Polyplastics Co., Ltd.
    Inventors: Toshihiko Endo, Nobuyuki Matsunaga
  • Black liquid colorant and polyester fibers dope-dyed therewith
    Patent number: 4879335
    Abstract: A black liquid colorant for dope dyeing of polyester fibers, comprising 5-50 wt % carbon black obtained by wet-oxidation with peroxide and subsequent neutralization of a gas phase oxidized carbon black, and 95-50 wt % liquid dispersion medium such as liquid polyester. Black polyester fibers, typically polyethylene terephthalate fibers, dope-dyed with preferably 3-15 wt % base on the polyester of said black liquid colorant, have a deep blackness with a bluish tone and neither polymer deterioration nor filament breakage is observed.
    Type: Grant
    Filed: September 22, 1987
    Date of Patent: November 7, 1989
    Assignees: Toyo Ink Mfg. Co., Ltd., Nippon Ester Company Ltd.
    Inventors: Fumio Hirota, Tsutomu Kado, Shosuke Oku, Noboru Watanabe
  • Plastic lens composition and method for the production thereof
    Patent number: 4879318
    Abstract: A method for making a plastic lens and a plastic lens made thereby. The method comprises disposing a liquid monomer or a monomer mixture and a photosensitive initiator into a mold cavity and directing ultraviolet light to act on the lens forming material in the cavity to produce a lens therefrom. The liquid monomer mixture may include one or more of diethylene glycol bis(allyl)-carbonate, bisphenol A diallyl carbonate, 1,6 hexanedioldimethacrylate, trimethylol propane triacrylate, tetraethylene glycol diacrylate, tripropylene glycol diacrylate, tetrahydrofurfurylmethacrylate, tetrahydrofurfuryl acrylate and styrene. The photosensitive initiator may be selected from the group of 2-hydroxy-2-methyl-1- phenyl-propan-1-one and 1-hydroxycyclohexyl phenyl ketone.
    Type: Grant
    Filed: November 18, 1988
    Date of Patent: November 7, 1989
    Assignee: Ophthalmic Research Group International, Inc.
    Inventors: N. Thornton Lipscomb, Omar M. Buazza
  • Process for producing polyester resin composition
    Patent number: 4877819
    Abstract: A process for producing a titanium dioxide containing polyester resin composition from which a white film useful as a reflective photographic support can be prepared is disclosed.Said process is performed by first supplying a polyester resin and titanium dioxide into a continuous kneading extruder, kneading them in molten state, and supplying an additional charge of the polyester resin to give a desired concentration of the titanium dioxide, wherein the first supplied polyester resin has an intrinsic viscosity of at least 0.40, said titanium dioxide having an average particle size of 0.1-0.5 .mu.m and a water content of no more than 0.5% and having been surface-treated with an aluminum compound and/or a silicon compound, and the concentration of titanium dioxide being in the range of 20-70 wt % when kneaded with the polyester resin in molten state.
    Type: Grant
    Filed: April 21, 1988
    Date of Patent: October 31, 1989
    Assignees: Konica Corporation, Kanebo Ltd.
    Inventors: Kazuto Kiyohara, Toshiyuki Hagiwara, Takanori Nakadate, Ichiya Harada, Kentaro Noguchi, Shigeru Sakae, Kazuhiro Okuma
  • Solid state polymerization process for increasing the molecular weight of colpoly(arylene sulfide)
    Patent number: 4877862
    Abstract: A solid-state polymerization process for increasing the molecular weight of a polymer such that the n value is at least 200 comprising heating within a heating zone at a temperature of at least 200.degree. C. a crystalline polymer corresponding to the structure:[(--A--S--).sub.1-x (--A--S--S--).sub.x ].sub.nwherein A is a divalent substituted or unsubstituted aromatic radical, x is in the range of 0.5 to 0.001 and n is at least 20 wherein the volume of the heating zone not occupied with polymer is either under vacuum or is occupied with an inert gas.
    Type: Grant
    Filed: April 13, 1989
    Date of Patent: October 31, 1989
    Assignee: Eastman Kodak Company
    Inventors: David R. Fagerburg, Joseph J. Watkins
  • Moulded bodies containing carbon
    Patent number: 4876033
    Abstract: This invention relates to carbon-containing moulded bodies based on thermoplastic polycarbonates and thermoplastic polyalkylene terephtalates with an addition of carbon black and graphite and to a process for the production of these moulded bodies.
    Type: Grant
    Filed: April 25, 1988
    Date of Patent: October 24, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Heinz-Jurgen Dziurla, Dieter Freitag, Werner Waldenrath, Claus Burkhardt, Bernhard Schulte
  • Plated resin article
    Patent number: 4876145
    Abstract: A molded article of a transparent ABS resin comprising 10 to 24% by weight of a diene type rubber having a weight average particle size of 150 m.mu. or less and not containing methyl methacrylate in the continuous resin phase is subjected to wet plating. The resulting plated resin article has an excellent adhesion of the plating layer and a good transparency.
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: October 24, 1989
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Tetsuro Maeda, Fukuaki Wada, Susumu Ohoka, Akihiro Okamoto
  • Epoxy resin composition
    Patent number: 4876298
    Abstract: An epoxy resin composition which is adapted for use as an encapsulator of electronic or electric parts and which comprises an epoxy resin and a curing agent for the epoxy resin. A modified polymer obtained by reaction between an aromatic polymer and a fluorine-containing material is added to the epoxy resin, so that good characteristic properties are imparted to the resultant cured product.
    Type: Grant
    Filed: June 2, 1988
    Date of Patent: October 24, 1989
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Kunio Itoh, Toshio Shiobara
  • Foundry binder systems based upon acrylated epoxy resins and epoxy resins
    Patent number: 4876294
    Abstract: The subject invention relates to foundry binder systems, which are cured with gaseous sulfur dioxide, comprising as separate components:1. a blend of an acrylated epoxy resin and a monoester solvent and;2. an organic solvent; and a blend of an epoxy resin and an aromatic hydrocarbon solvent which is part of component (a), (b), or both.The invention also relates to the use of the foundry binder systems to prepare foundry mixes, foundry shapes, and metal articles.
    Type: Grant
    Filed: September 13, 1988
    Date of Patent: October 24, 1989
    Assignee: Ashland Oil, Inc.
    Inventors: H. Randall Shriver, William R. Dunnavant, Bruce A. Gruber
  • Organoaluminum coupling agents and filled polymer compositions thereof
    Patent number: 4876318
    Abstract: Compounds of the formula ##STR1## where R is alkyl, R' is independently selected from alkyl and aryl, and n ranges from 1 to 8 are useful as coupling agents in filled polymer compositions, e.g., in filled, polar polymers such as polybutylene terephthalate.
    Type: Grant
    Filed: July 19, 1988
    Date of Patent: October 24, 1989
    Assignee: Texas Alkyls, Inc.
    Inventors: Dennis B. Malpass, Kelly B. Triplett, Andrzej M. Piotrowski
  • Plastic substrate having an adherent photo-product coating on its surface and a method of coating said plastic substrate
    Patent number: 4874672
    Abstract: This invention relates to a plastic substrate having on its surface an adherent photo-product coating, and a method for coating that substrate, which coating is formed by exposing to light in the presence of an oxygen source, a reactant mixture comprising: 2,2'4,4'-tetrahydroxybenzophenone, with (1) ammonium hydroxide and optionally a trace amount of at least one reactive metal, or (2) ammonium hydroxide and at least one metal salt, or (3) at least one metal salt and at least one amine, or (4) ammonium hydroxide, at least one metal salt and at least one amine; in a suitable solvent.
    Type: Grant
    Filed: February 18, 1988
    Date of Patent: October 17, 1989
    Assignee: S. C. Johnson & Son, Inc.
    Inventors: Robert M. Etter, Phillip J. Neumiller
  • Self-lubricating thermoplastic resin wear part
    Patent number: 4874807
    Abstract: A self-lubricating wear part is formed of a thermoplastic resin composition which exhibits improved durability to abrasion. The resin composition includes a thermoplastic polyester resin or polyacetal resin in an amount between 99.9 to 80.0 parts by weight, and a silicon oil having a viscosity of 150,000 cSt or more in an amount between 0.1 to 20 parts by weight.
    Type: Grant
    Filed: May 6, 1988
    Date of Patent: October 17, 1989
    Assignee: Polyplastics Co., Ltd.
    Inventors: Toshihiko Endo, Nobuyuki Matsunaga
  • Polyester resin composition
    Patent number: 4874800
    Abstract: A polyester composition which comprises a blend of polyester being capable of forming an anisotropic phase in the molten state and being melt-processable, a filler and a polyamide and is improved in mechanical strength and thermal stability properties. It is easy to blend the filler with the polyester, if the filler is treated with the polyamide, prior to the blending step.
    Type: Grant
    Filed: October 16, 1987
    Date of Patent: October 17, 1989
    Assignee: Polyplastics Co., Ltd.
    Inventors: Tsuyoshi Minamisawa, Katsunori Endo, Eitaro Ikegami, Shigeru Nezu
  • Graft polymers and blends thereof with polyamides
    Patent number: 4873289
    Abstract: The invention relates to new graft polymers based on elastomers as the graft base and grafted-on vinyl monomers, their preparation and blend thereof with polyamides.
    Type: Grant
    Filed: September 15, 1988
    Date of Patent: October 10, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Christian Lindner, Dieter Wittmann, Ludwig Trabert, Carlhans Suling, Herbert Bartl, Karl-Heinz Ott
  • Modified polyphenylene ether-polyamide compositions and process
    Patent number: 4873286
    Abstract: Novel modified polyphenylene ether-polyamide compositions comprising polyphenylene ether, polyamide and a polycarboxylic acid and the reaction product thereof and an improved process for preparing the same.
    Type: Grant
    Filed: April 14, 1988
    Date of Patent: October 10, 1989
    Assignee: General Electric Company
    Inventors: Robert R. Gallucci, Roelof van der Meer, Roger W. Avakian
  • Reinforced polymer compositions having excellent distinctness of image
    Patent number: 4871789
    Abstract: Molded polyurethanes are filled with a particular filler mixture, including a certain wollastonite or talc as a supplementary filler, to provide a polymer composition having surprising good physical properites and excellent surface quality.
    Type: Grant
    Filed: April 18, 1988
    Date of Patent: October 3, 1989
    Assignee: The Dow Chemical Company
    Inventor: Eloy C. Martinez
  • Binders water-dilutable by protonation with acid
    Patent number: 4871808
    Abstract: A binder which is water-dilutable on protonation with acid and obtainable by a reaction of(A) an epoxy resin having an average molecular weight of from 300 to 6,000 and on average from 1.5 to 3.0 epoxide groups per molecule and(B) from 20 to 30 mol %, based on the amount of epoxide groups present in epoxy resin (A), of one or more secondary amine and/or alkanolamine of up to 40 carbon atomsand subsequent reaction with(C) a copolymer which is based on butadiene and acrylonitrile and contains primary and/or secondary amino groups, the amount of (C) being so dimensioned that the number of primary and secondary amino groups corresponds to from 1 to 50 mol % of the epoxide groups present in the epoxy resin (A), and also(D) with one or more primary and/or secondary amine to convert any epoxide groups still present, is usedin particular for cathodic electrocoating.
    Type: Grant
    Filed: November 5, 1987
    Date of Patent: October 3, 1989
    Assignee: BASF Lacke + Farben Aktiengesellschaft
    Inventors: Thomas Schwerzel, Rolf Osterloh, Eberhard Schupp, Thomas Perner, Klaas Ahlers
  • Storage-stable polymerizable composition
    Patent number: 4868229
    Abstract: An extrudable epoxy resin and curing agent that polymerize when mixed are separated by an extrudable barrier layer disposed between and in contacting relationship with the epoxy resin and curing agent. The material of the barrier layer is insoluble in the epoxy resin and curing agent while being dispersible in a mixture of them. The barrier layer material is selected from hydrogenated rosin ester, terpene phenolic resin, alpha-pinene resin and polybutene. The epoxy resin, curing agent and barrier layer have sufficiently similar rheologies at the temperature at which they are to be extruded from their container to ensure against intermixing until after they emerge from the container outlet.
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: September 19, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Duane H. Hart
  • Mineral and textile webs bonded with a cured resin mixture
    Patent number: 4868227
    Abstract: Webs composed of inorganic or organic fiber material are bonded with a cured resin mixture consisting essentially of(A) from 5 to 80% by weight of a water-soluble condensation product of carbonyl number 0-200 which has been prepared by alkaline condensation from 0.1 to 0.4 mole of an aliphatic or cycloaliphatic condensable ketone and 1 mole of formaldehyde, and(B) from 20 to 95% by weight of a water-soluble amino and/or phenolic resin.
    Type: Grant
    Filed: February 22, 1988
    Date of Patent: September 19, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Fritz E. Kempter, Franz Matejcek, Werner Neubach, Gerd Busse