Patents Examined by Lewis T. Jacobs
  • Process for preparing static dissipative linear segmented polyurethanes
    Patent number: 4939204
    Abstract: This invention is an improvement in a process for preparing an static dissipative phase-segregated polyurethane polymer wherein a polyfunctional polyether and a chain extender are reacted with an organic polyisocyanate in the presence of about 500 to 10,000 parts per million metal tetraorganoboron salt or fluorinated alkylsulfonate salt, based on the weight of the polyurethane. The improvement comprises dissolving said salt in all or a portion of said chain extender prior to contacting said chain extender with said polyfunctional polyether and said polyisocyanate.This process provides a phase-segregated polyurethane having excellent static dissipative properties.
    Type: Grant
    Filed: November 2, 1988
    Date of Patent: July 3, 1990
    Assignee: The Dow Chemical Company
    Inventor: Elizabeth A. Efford
  • Lithium-containing resole composition for making a shaped refractory article and other hardened articles
    Patent number: 4939188
    Abstract: The invention relates to the use of lithium ion-generating alkalizing agents in resole binder compositions useful for bonding aggregate materials to form refractory articles. Use of lithium-ion generating alkalizing agents produce resole resin binder compositions which, when cured by an ester functional curing agent, exhibit tensile and compression strengths superior to strengths obtained from compositions using sodium ion-generating or potassium ion-generating alkalizing agents.
    Type: Grant
    Filed: December 22, 1988
    Date of Patent: July 3, 1990
    Assignee: Borden, Inc.
    Inventor: Arthur H. Gerber
  • Glass fiber reinforced thermoplastic molding compositions based on polyesters and graft polymers
    Patent number: 4939201
    Abstract: Thermoplastic molding compositions based on thermoplastic polyesters (a.sub.1), graft polymers incorporating acrylate rubbers as grafting bases (a.sub.2), copolymers of aromatic vinyl monomers and acrylonitrile or methacrylonitrile (a.sub.3) which contain a polymeric component (B) having carboxyl, carboxyl derivative, hydroxyl or epoxy groups or, alternatively, where graft polymers (a.sub.2) or copolymers (a.sub.3) carry such groups have a balanced range of properties.
    Type: Grant
    Filed: October 7, 1988
    Date of Patent: July 3, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Erhard Seiler, Karl Ruppmich, Manfred Knoll, Walter Heckmann, Dietrich Lausberg, Rainer Bueschl
  • Water-borne coating composition
    Patent number: 4939189
    Abstract: Disclosed is a water-borne coating composition having improved pigment dispersibility. The water-borne coating composition comprises a pigment and a water dispersible or water soluble resin, wherein said pigment is preliminary ground with crosslinked resin particles having ionic groups on the surface.
    Type: Grant
    Filed: July 11, 1989
    Date of Patent: July 3, 1990
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Kenshiro Tobinaga, Hiroyuki Sakamoto, Hiroshi Tsushima, Yasuyuki Tsuchiya
  • Glass-fiber-reinforced stabilized polyamide molding compositions
    Patent number: 4937276
    Abstract: Improved polyamide molding compositions are characterized in that(a) the polyamide essentially contains the polycondensation product of adipic acid, terephthalic acid and hexamethylenediamine,(b) the molding compositions are reinforced with glass fibers and(c) a mixture of copper-, halogen- and phosphorus-containing compounds is present as stabilizer.
    Type: Grant
    Filed: May 9, 1988
    Date of Patent: June 26, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Werner Nielinger, Heinz-Josef Fullmann, Jurgen Kirsch, Ludwig Bottenbruch
  • Coating composition
    Patent number: 4937274
    Abstract: A coating composition comprising metallic flake pigments having an average thickness of 0.5 to 1.5.mu. and an average diameter of 10 to 45.mu., selected from the group consisting of aluminium flakes, bronze flakes, tin flakes, gold flakes, silver flakes, titanium flakes, stainless steel flakes, nickel flakes, copper flakes, their alloyed metal flakes, plastic-coated metal flakes and flake phthalocyanine blue, and ultra-fine particles having an average particle diameter of 5 to 400 m.mu., the weight ratio of said flake pigments to ultra-fine particles being 1:0.05 to 1:12, uniformly dispersed in a thermosetting resin vehicle. The present coating composition is useful as a top coat and especially as a base coat composition for 2-coat-1-bake coating system for automobile body, appliance or the like, resulting an excellent metallic effect and decorative interference color effect.
    Type: Grant
    Filed: July 6, 1988
    Date of Patent: June 26, 1990
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Masamichi Arima, Gorou Nagao, Fumikazu Matsuda
  • Nylon modified rubber composition wherein either nylon or rubber or both are reacted with a thio acid
    Patent number: 4937290
    Abstract: It is desirable to increase the modulus of rubbers utilized in a wide variety of applications. This invention discloses a technique for modifying rubbers to improve their modulus without sacrificing other properties. The subject invention more specifically relates to a process for preparing a rubber composition having a high modulus which comprises reacting at least one thio acid with at least one polydiene rubber and at least one nylon.
    Type: Grant
    Filed: September 26, 1988
    Date of Patent: June 26, 1990
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Richard G. Bauer, James B. Pyke
  • Dual-ovenable nylon container
    Patent number: 4935272
    Abstract: The present invention provides a container made from an aliphatic polyamide, said polyamide containing at least 0.2 wt. % of an additive selected from ortho-phosphorous acid, hypophosphorous acid, alkali metal salts and alkaline earth metal salts thereof. The containers are particularly useful for packaging foods, e.g. frozen dinners. The additive in the container minimizes browning of the container from exposure to high temperatures experienced in conventional ovens.
    Type: Grant
    Filed: November 2, 1988
    Date of Patent: June 19, 1990
    Assignee: Du Pont Canada, Inc.
    Inventor: Christian Leboeuf
  • Surface composition for a substrate and method of preparation
    Patent number: 4935463
    Abstract: The invention is a composition for forming a surface on a suitable substrate comprising(a) a water soluble polymer crosslinkable into a water-insoluble form;(b) a pigment component;(c) silica; and(d) a crosslinking agent.In a preferred embodiment, the polymer is an organic colloid such as polyvinyl alcohol, the pigment component comprises a water dispersible pigment such as titanium dioxide and clay, silica particles have diameters smaller than that of the pigment, and the crosslinking agent comprises a water soluble organic compound containing both an acid and carbonyl group, a water soluble dicarbonyl compound, and a suitable polymerizable resin.
    Type: Grant
    Filed: June 15, 1987
    Date of Patent: June 19, 1990
    Assignee: Chemco Technologies, Inc.
    Inventors: Elfriede Stockel, Cynthia L. Buchan
  • Modified block copolymers and process for the preparation thereof
    Patent number: 4935466
    Abstract: A block copolymer comprising a monoalkenylaromatic hydrocarbon block and a hydrogenated conjugated diene hydrocarbon block in which groups ##STR1## R being an organic radical, are grafted at the aromatic groups, and preparation thereof by reacting the block copolymer with an azide ##STR2##
    Type: Grant
    Filed: May 20, 1988
    Date of Patent: June 19, 1990
    Assignee: Shell Oil Company
    Inventor: Anne C. Udding
  • Epoxy resin powder coating composition
    Patent number: 4933382
    Abstract: An epoxy resin powder coating composition which comprises:(A) an epoxy resin comprising mainly of a bisphenol A epoxy resin mixture of (a) a bisphenol A epoxy resin having a number average molecular weight of from 2,500 to 8,000 and (b) a bisphenol A epoxy resin having a number average molecular weight of from 350 to 1,700, said mixture having a number average molecular weight of from 1,700 to 4,500;(B) rubber powder in an amount of 2 to 30 parts by weight per 100 parts by weight of said epoxy resin (A);(C) at least one hardener; and(D) a filler.The coating composition is particularly useful for the insulation of slots for motor rotors, exhibiting excellent thermal resistance, adhesiveness, impact resistance and coverage.
    Type: Grant
    Filed: September 26, 1989
    Date of Patent: June 12, 1990
    Assignee: Somar Corporation
    Inventors: Katugi Kitagawa, Akira Shinozuka
  • Rubber composition
    Patent number: 4933385
    Abstract: A rubber composition having excellent adhesion to steel cords comprising:(a) 100 parts by weight of at least one rubber selected from the group consisting of natural rubber, synthetic rubber and a blend thereof;(b) from about 0.01 to 1 part by weight of elemental cobalt contained in at least one cobalt oxyketone complex represented by formulae (I) or (II): ##STR1## wherein X.sub.1 -X.sub.4 and Y.sub.1 -Y.sub.10 are as defined in the specification; and(c) from about 0.2 to 10 parts by weight of a bismaleimide compound represented by formula (III): ##STR2## wherein Z represents a hydrocarbon group containing 2 to 10 carbon atoms. The rubber composition has excellent adhesion to steel cord, excellent thermoresistability, and is suitable for use in tire, belt, hose and vibration insulating rubber.
    Type: Grant
    Filed: November 2, 1988
    Date of Patent: June 12, 1990
    Assignee: Bridgestone Corporation
    Inventors: Hisao Yamamoto, Michio Itoh, Yoichi Watanabe, Yutaka Iseda
  • Bituminous materials
    Patent number: 4933384
    Abstract: A composition useful as a pavement material comprising a mixture of asphalt and a polymer of an .alpha.-olefin, or an interpolymer of an .alpha.-olefin, and at least one copolymer selected from the group consisting of an .alpha.,.beta.-unsaturated carboxylic acid, a monomer of an .alpha.,.beta.-unsaturated carboxylic acid, a vinyl ester of alkanoic acid, and carbon monoxide.
    Type: Grant
    Filed: January 10, 1986
    Date of Patent: June 12, 1990
    Assignee: The Dow Chemical Company
    Inventor: David L. Wolfe
  • Synthetic alkali metal alumino-silicates, methods and uses, compositions and their methods of preparation
    Patent number: 4933387
    Abstract: A family of novel and unique synthetic alkali metal alumino-silicates (SAMS) are produced by the hydrothermal reaction between kaolin clay and alkali metal silicates. The integrated composition of the SAMS products is a unique entity having an overall composition ofxM.sub.2 O:Al.sub.2 O.sub.3 :ySiO.sub.2 :zH.sub.2 Owhere x is the number of moles of alkali metal oxide and is an integer from 0.01 to 2.0, M is an alkali metal, y is the number of moles of SiO.sub.2 in the unique SAMS compositions, and z is the number of moles of bound water and is an integer ranging from 1.0 to 5.0. The composition essentially comprises altered kaolin clay platelets with an integral or protuberance of essentially amorphous alkali metal silicate-kaolin reaction product. The unique SAMS compositions are structured materials in which the structure can be controlled, and are therefore useful as functional fillers, as TiO.sub.
    Type: Grant
    Filed: January 19, 1989
    Date of Patent: June 12, 1990
    Assignee: J.M. Huber Corporation
    Inventor: Satish K. Wason
  • Coating composition exhibiting improved resistance to environmental attack
    Patent number: 4931491
    Abstract: A coating composition for the protection of substrates against environmental attack, comprising, in weight percent, from about 10% to about 30% of a film-forming polymer which is liquid at room temperature in the presence of not more than 25% solvents; up to about 20% of a corrosion inhibiting agent such as metal chromates, metal phosphates and/or metal molybdates; from 2% to about 5.5% of an amorphous pyrogenic silica having an average particle size less than 0.01 micron; from about 20% to about 50% of a crystalline silica having an oil absorption value of less than 20 measured by ASTM standard test D281-84; not greater than 25% of at least one solvent compatible with the polymer. The composition has a viscosity suitable for application by conventional equipment while also having a low volatile organic content.
    Type: Grant
    Filed: November 25, 1988
    Date of Patent: June 5, 1990
    Inventor: Ronald R. Savin
  • Admixing metal salt promotor, initiator and (m)ethyl acetoacetate to cure vinyl esters
    Patent number: 4931514
    Abstract: A method of accelerating the curing of a vinyl ester resin (e.g., vinyl ester adhesives) and related compositions comprising: a vinyl ester resin (e.g., bisphenol/epichlorohydrin condensation polymer end capped with methacrylic or ethylacrylic acid); a vinyl monomer (e.g., styrene or the like); a free radical initiator (e.g., MEKP); a free radical promoter (e.g., polyvalent metal naphthenates, polyvalent metal octoates or the like); and an accelerator selected from the group consisting of methyl acetoacetate and ethyl acetoacetate, such compositions are characterized by gel times under ten minutes and physical properties approaching fully cured values within one hour.
    Type: Grant
    Filed: June 10, 1988
    Date of Patent: June 5, 1990
    Inventor: William D. Waters
  • Alkaline phenolic resole resin binders
    Patent number: 4929648
    Abstract: A binder composition which comprises an aqueous alkaline solution of a phenolic resole resin and an additive wherein the additive is phenoxyethanol or a derivative of phenoxyethanol.
    Type: Grant
    Filed: March 24, 1989
    Date of Patent: May 29, 1990
    Assignee: Acme Resin Corporation
    Inventors: David R. Armbruster, Kwok-Tuen Tse
  • Process for producing modified ultrahigh-molecular-weight polyolefins
    Patent number: 4927871
    Abstract: Disclosed is a process for producing a modified ultrahigh-molecular-weight polyolefin composition, which comprises mixing a powder of an ultrahigh-molecular-weight polyolefin (A) having an intrinsic viscosity of at least 5 dl/g, a flowability improver (B) having a melting point lower than the melting point of the ultrahigh-molecular-weight polyolefin (A), a monomer (C) having an olefinically unsaturated bond and a radical initiator (D) with stirring at the melting point of the flowability improver (B) or a higher temperature but below the melting point of the ultrahigh-molecular-weight polyolefin (A), and then melt-kneading them at the melting point of the ultrahigh-molecular-weight polyolefin (A) or a higher temperature to react the monomer (C) with the ultrahigh-molecular-weight polyolefin (A).
    Type: Grant
    Filed: July 15, 1988
    Date of Patent: May 22, 1990
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Yoshiji Ohori, Hirofumi Harazoe
  • Ignition resistant modified thermoplastic composition
    Patent number: 4927870
    Abstract: Ignition resistant non-haloaromatic containing thermoplastic polymer compositions are disclosed which are mixtures of (1) a non-carbonate polymer such as a polyester terephthalate, a polyacetal, a polymethylmethacrylate and the like, (2) a carbonate polymer, or (3) a blend of (1) and (2) with a high elastic memory polytetrafluoroethylene, an organic phosphate, and a metal salt of an inorganic acid.
    Type: Grant
    Filed: August 25, 1988
    Date of Patent: May 22, 1990
    Assignee: The Dow Chemical Company
    Inventors: Samuel A. Ogoe, Thoi H. Ho
  • Chemically treated glass fibers for reinforcing polymers
    Patent number: 4927869
    Abstract: Chemically treated glass fibers of the present invention provide good processing properties in reinforcing thermosetting polymers while resulting in fiber reinforced thermosetting materials having good strength properties. The chemically treated glass fibers have a dried residue of an aqueous chemical treating composition having: two film forming polymers, at least an acryloxy alkyl trialkoxysilane, a fiber lubricant and polyester curing agent and water. One film forming polymer is a polyvinylacetate copolymer having a low solubility in acetone and the other film forming polymer is unsaturated, curable, essentially linear polyester polymer. The fiber lubricant is a nonionic polyethylene-containing polymer or a cationic lubricant like polyalkylene polyamine polyamino amide, and partially amidated polyalkylenimines and mixtures thereof present in an effective lubricating amount.
    Type: Grant
    Filed: September 15, 1988
    Date of Patent: May 22, 1990
    Assignee: PPG Industries, Inc.
    Inventors: David E. Dana, Steven J. Morris