Patents Examined by H. H. Fletcher
  • Patent number: 4102828
    Abstract: Covers a method of producing polyurethanes formed as the reaction product of polyisocyanates and an alkoxylated novolak. Said novolak is the condensation product of a monohydric phenol and a 1,3-dioxane falling within the following structural formula: ##STR1## where R is selected from the group consisting of phenyl, substituted phenyl and gem dialkyl, and R.sub.1 is selected from the group consisting of hydrogen, alkyl, phenyl, and substituted phenyl. Also covers polyurethanes derived therefrom, and particularly rigid polyurethane foams.
    Type: Grant
    Filed: April 28, 1976
    Date of Patent: July 25, 1978
    Assignee: Texaco Development Corporation
    Inventor: Howard P. Klein
  • Patent number: 4102716
    Abstract: A two-part pourable composition capable of forming a dielectric, thermally stable, hydrolytically stable, moisture insensitive polyurethane gel comprising in a first part an aliphatic or cycloaliphatic isocyanate and an aliphatic/naphthenic hydrocarbon oil, and in a second part a polyalkadiene polyol, a dialkyl organotin catalyst, and the aliphatic/naphthenic oil. The gel is ideally suitable as a filler for communication cable splices since it is substantially inert toward molded polycarbonate connectors conventionally used in such splices.
    Type: Grant
    Filed: May 11, 1976
    Date of Patent: July 25, 1978
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James D. Groves, Deborah Sue Anne D'Zuro
  • Patent number: 4102858
    Abstract: 2,2,6,6-TETRAMETHYL-4-PIPERIDYL THIOCARBOXYLATES AND AMINOCARBOXYLATES ARE PROVIDED HAVING THE GENERAL FORMULA: ##STR1## wherein: M.sub.1, M.sub.3, AND M.sub.4 ARE NUMBERS FROM 0 TO 1;m.sub.2 is a number from 1 to 2;n.sub.1 is a number from 0 to 2;n.sub.2 is a number from 0 to 3;n.sub.3 is a number from 0 to 2;R.sub.1 is selected from the group consisting of alkyl, aralkyl, cycloalkyl and 2,2,6,6-tetramethyl-4-piperidyl;R.sub.2 is selected from the group consisting of alkyl, cycloalkyl, alkylaryl, aralkyl, and hydroxy-substituted such radicals;R.sub.1 and R.sub.2 have from one to about twenty carbon atoms;X is hydrogen or O;Y.sub.1 and Y.sub.2 are bivalent linking radicals having from one to about 20 carbon atoms, and selected from the group consisting of alkylene and cycloalkylene; and amino-substituted such radicals;Q is selected from the group consisting of SR.sub.
    Type: Grant
    Filed: September 20, 1976
    Date of Patent: July 25, 1978
    Assignee: Argus Chemical Corporation
    Inventors: Motonobu Minagawa, Naohiro Kubota, Toshihiro Shibata
  • Patent number: 4101482
    Abstract: A mixture of an unsaturated block copolymer and a hydrogenated thermoplastic elastomer in combination with a modifying resin and a filler provides a sealant formulation having good flexibility, low tack, and low melt viscosity without a sacrifice in other properties.
    Type: Grant
    Filed: October 4, 1976
    Date of Patent: July 18, 1978
    Assignee: Phillips Petroleum Company
    Inventors: Richard C. Doss, Edward L. Walton
  • Patent number: 4100114
    Abstract: A rigid polyurethane foam composition characterized by containing 5 to 20% by weight of hollow-spherical Silas balloons having a particle size of 100 to 300 .mu.(based on the total weight of the polyol and isocyanate components of the polyurethane foam) and 0.2 to 2% by weight of an organosilane compound (based on the total weight of the polyol and isocyanate components of the polyurethane foam and said Silas balloons) in the rigid polyurethane foam.
    Type: Grant
    Filed: December 30, 1975
    Date of Patent: July 11, 1978
    Assignee: Hitachi, Ltd.
    Inventors: Reishi Naka, Toshikazu Narahara, Junji Mukai
  • Patent number: 4100119
    Abstract: In a water soluble enamel paint composition comprising a water soluble polyester resin, the incorporation of a rosin-ester resin, such as PENTALYN.RTM. 255, into the polyester resin improves the water resistance and drying time of the resulting enamel paint.
    Type: Grant
    Filed: October 20, 1975
    Date of Patent: July 11, 1978
    Assignee: Standard Oil Company (Indiana)
    Inventor: Michael A. Lerman
  • Patent number: 4100128
    Abstract: The instant invention relates to compositions comprising a copolymer of sulfur dioxide and one or more olefins in combination with a hydrocarbon oil which is a mixture of paraffinic, aromatic and naphthenic hydrocarbons having a solubility parameter of about 7 to about 8.5. The olefins are alpha olefins, at least one having a carbon number of 20 or more, more preferably a carbon number of from 20 to 40. The copolymers useful in preparing the compositions of the instant invention are crystalline solids, which are combined with a sufficient amount, preferably from about 5 to 24 pph, of the hydrocarbon oil to yield flexible materials. The above compositions are useful as coatings.
    Type: Grant
    Filed: April 14, 1977
    Date of Patent: July 11, 1978
    Assignee: Exxon Research & Engineering Co.
    Inventors: Guido Sartori, Robert D. Lundberg
  • Patent number: 4100327
    Abstract: A composition is disclosed of a non-metallic, non-ionic organo-sulfur compound, a resinous carrier, and a solvent. The composition is applied to a portion of an electrical apparatus which is exposed to a gas stream. The solvent in the composition is evaporated to produce a thermoparticulating coating. When the electrical apparatus overheats, the organo-sulfur compound in the coating forms particles in the gas stream which are detected by the monitor.
    Type: Grant
    Filed: June 24, 1976
    Date of Patent: July 11, 1978
    Assignee: Westinghouse Electric Corp.
    Inventors: James D. B. Smith, Joseph F. Meier, David C. Phillips
  • Patent number: 4096107
    Abstract: A molding composition and method for the preparation of same wherein the molding composition is formulated of an unsaturated thermosetting prepolymer, a thermoplastic polymer prepared by interpolymerization of (1) a polymerizable ethylenic monomer, (2) an organic acid or anhydride containing at least one carboxyl group and one double bond per molecule, (3) an unsaturated elastomer having an average molecular weight less than 40,000 and (4) an unsaturated elastomer having an average molecular weight greater than 43,000, an unsaturated cross-linking agent which is capable of serving as a solvent for the prepolymer and the thermoplastic polymer and a non-reactive solvent. The combination of the thermoplastic polymer and the non-reactive solvent are believed to act together to reduce the amount of shrinkage of the thermosetting prepolymer when the latter is cured with the cross-linking agent.
    Type: Grant
    Filed: November 12, 1976
    Date of Patent: June 20, 1978
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Michael Graeg Roberts, Charles Edwin Bolen
  • Patent number: 4096103
    Abstract: A pressure-sensitive adhesive composition consisting essentially of a natural or synthetic tackifier, an elastomer comprising isoprene and piperylene and a solvent. The elastomer is preferably prepared from certain selected copolymerized C.sub.5 -hydrocarbons from a hydrocarbon mixture containing C.sub.5 -monoolefinic hydrocarbons, C.sub.5 -diolefinic hydrocarbons (cyclic and acyclic), C.sub.5 -paraffins, C.sub.6 -aliphatics, and benzene.The elastomers thus formed, when mixed with certain natural or synthetic tackifiers, have the required tack of pressure-sensitive adhesives.
    Type: Grant
    Filed: December 29, 1976
    Date of Patent: June 20, 1978
    Assignee: Gulf Research & Development Company
    Inventors: Pallavoor R. Lakshmanan, Harold E. Swift, Ching Yong Wu
  • Patent number: 4096114
    Abstract: Organic phosphites are provided having at least one 2,2,6,6-tetramethyl piperidyl substituent attached at the 4-position to phosphorus through oxygen, and at least one polyol or polyphenol group, which are superior light and heat stabilizers for organic polymeric mterials such as polyethylene, polypropylene, polyvinyl chloride, acrylonitrile-butadiene-styrene terpolymers, polyamides, polystyrene, and similar polymers.
    Type: Grant
    Filed: August 16, 1976
    Date of Patent: June 20, 1978
    Assignee: Argus Chemical Corporation
    Inventors: Motonobu Minagawa, Naohiro Kubota, Toshihiro Shibata, Kazuo Sugibuchi
  • Patent number: 4092455
    Abstract: Vulcanizable rubber compositions providing excellent bonding of textile or metal reinforcing fibers thereto which comprises a rubber, a filler material, an N-(substituted oxymethyl)melamine and a compound selected from 1,1'-methylenebis(2-naphthol), 2,2'-methylenebis (1-naphthol), mixtures thereof, 1,1'-thiobis(2-naphthol), 2,2-thiobis(1-naphthol), 4,4'-methylenebis(1-naphthol), 4,4'-thiobis(1-naphthol) and mixtures thereof.
    Type: Grant
    Filed: March 8, 1976
    Date of Patent: May 30, 1978
    Assignee: American Cyanamid Company
    Inventors: Frank George Pinto, Earl Kaplan
  • Patent number: 4092460
    Abstract: Compositions for flameproofing plastics without the release of toxic products during use in which compositions consist of a pulverulent mixture containing from 50 to 95% by weight of red phosphorous and from 5 to 50% by weight of polymers having unsaturated malenoid, fumaroid or allyl bonds.
    Type: Grant
    Filed: May 28, 1976
    Date of Patent: May 30, 1978
    Assignee: Rhone-Poulenc Industries
    Inventors: Jacqueline Cerny, Gilbert Vivant
  • Patent number: 4090989
    Abstract: Ozone resistance of vulcanized chloroprene homopolymers and copolymers, chlorinated isobutylene/isoprene copolymers, and blends of any of the above with up to equal weight of styrene/butadiene copolymer or natural rubber is improved by incorporating into the polymer or polymer blend prior to vulcanization about 0.5-5 parts per 100 parts by weight of polymer or polymer blend of one or more of bis(5-norbornene-2-methyl) phosphite, tris(5-norbornene-2-methyl) phosphite, and tris(5-norbornene-2-methyl) phosphate. These esters also improve the flex resistance of chloroprene copolymers with sulfur and their blends with styrene-butadiene copolymers or natural rubber. In addition to improving ozone and flex resistance of the above polymers and polymer blends, these esters do not cause staining or discoloration of the vulcanized polymers.
    Type: Grant
    Filed: June 21, 1976
    Date of Patent: May 23, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Mark Chaoming Chen
  • Patent number: 4089912
    Abstract: This application discloses stabilized flame-retardant styrenic polymer compositions comprising a bromine-containing flame-retardant, antimony trioxide and a three component stabilizer comprising a dialkyltin maleate, a hindered phenolic antioxidant, and a member selected from the group consisting of anhydrides of a cyclic dicarboxylic acid, ester derivatives thereof, imide derivatives thereof, and monomeric and dimeric polyesters.
    Type: Grant
    Filed: July 28, 1976
    Date of Patent: May 16, 1978
    Assignee: Great Lakes Chemical Corporation
    Inventors: Robert P. Levek, David O. Williams
  • Patent number: 4088806
    Abstract: An intumescent-ablator coating composition which comprises an intumescent agent such as the ammonium salt of 1,4-nitroaniline-2-sulfonic acid or 4,4-dinitrosulfanilide, a polymeric binder system and about 5 to 30% by weight, based on the total weight of the intumescent agent and the binder, of an endothermic filler having a decomposition temperature about or within the exothermic region of the intumescent agent.
    Type: Grant
    Filed: December 23, 1976
    Date of Patent: May 9, 1978
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Paul M. Sawko, Salvatore R. Riccitiello
  • Patent number: 4088615
    Abstract: Improved diecuttable polyester urethane foams are provided by the inclusion in the foam formulation of specified minor amounts of certain low molecular weight polyols, typically having hydroxyl numbers of 100 or greater. Representative useful species of such polyols include aliphatic alcohols, such as glycerol and erythritol, polymethylols such as trimethylolpropane, alkanolamines such as triethanolamine and relatively low molecular weight alkylene oxide adducts such as propylene - glycerol adducts and the like. Especially effective diecuttable foam formulations are provided by further employing, as co-additives, certain alkylene oxide adducts of linear alcohols or phenols, sulfonated petroleum oils, ammonium salts and silicone-containing copolymers. If desired, the viscosity and compatibility characteristics of the additive and/or additive and co-additive mixture may be modified by the incorporation of a diluent.
    Type: Grant
    Filed: December 30, 1975
    Date of Patent: May 9, 1978
    Assignee: Union Carbide Corporation
    Inventors: Michael R. Sandner, Walter R. Rosemund, Ronald D. Carey
  • Patent number: 4087389
    Abstract: A select semi-rigid polyurethane foam composition is described for use in packaging fragile or shock-sensitive objects. The foam composition is prepared from a very select reaction mixture which is characterized by high levels of water and an organic foaming agent, and a relatively low reaction mixture NCO/OH index of from about 30 to about 60.
    Type: Grant
    Filed: April 19, 1976
    Date of Patent: May 2, 1978
    Assignee: Olin Corporation
    Inventor: Pasquale J. Coppola
  • Patent number: 4087393
    Abstract: A non-aqueous resin dispersion is obtained by dissolving a resin, which is substantially insoluble in non-aqueous solvents, in at least one monomer which can dissolve said resin, subjecting the resulting solution to polymerization reaction in the presence or in the absence of non-aqueous solvent, and if necessary, adding a non-aqueous solvent to the reaction product. The non-aqueous resin dispersion is useful as a coating material or as a liquid developer for use in electrophotography.
    Type: Grant
    Filed: November 8, 1976
    Date of Patent: May 2, 1978
    Assignee: Ricoh Co., Ltd.
    Inventors: Kazuo Tsubuko, Kenichi Matsubayashi, Tsuneo Kurotori
  • Patent number: 4086205
    Abstract: The present invention relates to cyclic phosphorus compounds and processes for the preparation thereof.The present invention relates to a process for the preparation of certain derivatives of cyclic hydrogenphosphonates which are diisocyanate derivatives formed as adducts or as polymers.The cyclic phosphorus compounds are useful as flame retardants with organic polymers, such as polyurethanes, polyesters, and polyamides.
    Type: Grant
    Filed: September 3, 1976
    Date of Patent: April 25, 1978
    Assignee: Monsanto Company
    Inventor: Gail H. Birum