Patents Examined by Allan M. Lieberman
  • Patent number: 5197740
    Abstract: An novel golf ball is disclosed having an improved cover composition comprising a blend of a first copolymer of an olefin and a sodium salt of an unsaturated carboxylic acid, a second copolymer of an olefin and a zinc salt of an unsaturated carboxylic acid, and a third copolymer of an olefin and a lithium salt of an unsaturated carboxylic acid. The novel golf balls having the improved cover compositions exhibit improved playing properties.
    Type: Grant
    Filed: August 2, 1990
    Date of Patent: March 30, 1993
    Assignee: Ram Golf Corporation
    Inventors: Terence W. Pocklington, Terry R. Balch
  • Patent number: 5134178
    Abstract: The present invention relates to methods, compositions, and articles manufactured from scrap treated skin and/or leather which has been finely pulverized and mixed with synthetic resin. It further includes a method for the manufacture of improved leather products made from animal skin and/or leather and/or animal gelatin including the products derived therefrom and the method of producing skin and/or leather powder by use of steam and pulverization for combining with a fluid plastic material or resin in which the powder is uniformally dispersed in the plastic resin material for molding, extruding or manufacture of sheet material or for incorporation into coatings, paint or other plastic resinous products.
    Type: Grant
    Filed: April 23, 1990
    Date of Patent: July 28, 1992
    Assignee: EIN (America) Inc.
    Inventor: Sadao Nishibori
  • Patent number: 5132357
    Abstract: A high structured carbon black having a relatively large particle size and a high surface activity is provided for use in the tread rubber of a pneumatic tire. Tires made using the black demonstrate improved irregular wear and roll resistance properties.
    Type: Grant
    Filed: June 1, 1990
    Date of Patent: July 21, 1992
    Inventors: Norman G. Endter, Eric C. Mizner
  • Patent number: 5104917
    Abstract: Heat ablative compositions, comprises a binder and a filler including a combination of aluminum sulfate hydrate and aluminum ammonium sulfate hydrate. The combination produces a synergistic effect on the fire protection rating of the composition. The binder may be chosen from inorganic or organic binders.
    Type: Grant
    Filed: July 31, 1989
    Date of Patent: April 14, 1992
    Assignee: Ad-Va-Cote Tri-State Inc.
    Inventor: Vitaly G. Raevsky
  • Patent number: 5096201
    Abstract: One-piece and multi-layered golf balls are improved in flying performance by forming the one-piece ball entirely or multi-layered golf ball core from a rubber composition comprising a base rubber and a co-crosslinking agent in the form of a premix of an unsaturated fatty acid metal salt and a liquid polymer.
    Type: Grant
    Filed: September 7, 1990
    Date of Patent: March 17, 1992
    Assignee: Bridgestone Corporation
    Inventors: Yoshinori Egashira, Kazuyuki Takahashi, Seisuke Tomita
  • Patent number: 5082901
    Abstract: Pneumatic rubber tire with a rubber tread composition of styrene/butadiene copolymer rubber, cis 1,4-polyisoprene rubber and cis 1,4-polybutadiene rubber with a required glass transition temperature differentiation between the rubbers.
    Type: Grant
    Filed: September 24, 1990
    Date of Patent: January 21, 1992
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Tom D. Linster
  • Patent number: 5077327
    Abstract: Polymer compositions in the form of spheroidal particles with average diameter between 0.5 and 7 mm, comprising:A) 10-50 parts by weight of homopolymer of propylene with an isotactic index greater than 90 and an intrinsic viscosity from 0.5 to 1.5 dl/g;B) 50-90 parts by weight of propylene-ethylene copolymer containing 15-45% by weight of ethylene and having an intrinsic viscosity between 0.5 and 1.5 dl/g. The compositions are suitable for the modification of bitumens.
    Type: Grant
    Filed: July 30, 1990
    Date of Patent: December 31, 1991
    Assignee: Himont Incorporated
    Inventors: Giuliano Cecchin, Floriano Gugliemi, Livio Balzani
  • Patent number: 5070123
    Abstract: This invention relates to a composition and method for improving the storage stability of polymer modified asphalts. More specifically, the storage stability of an asphalt which contains greater than 1.0 wt. % polymer can be improved by adding the polymer to an asphalt which has previously been reacted with an inorganic acid. The storage stable acid treated polymer modified asphalt thus produced is particularly well suited for use as a binder in paving materials and as a coating or saturant for roofing shingles.
    Type: Grant
    Filed: August 23, 1989
    Date of Patent: December 3, 1991
    Assignee: Exxon Research & Engineering Company
    Inventor: Lyle E. Moran
  • Patent number: 5070146
    Abstract: Butadiene polymer rubber compositions containing a polymeric activator have particularly beneficial characteristics. The activator is an interpolymer of a vinylpyridine monomer and a diene hydrocarbon monomer which interpolymer contains from 20% to 65% by weight of vinylpyridine units. Composite articles made from these rubber compositions together with contiguous portions of a dissimilar rubber compound show greater strength and adhesion as a result of the presence of a activator in the butadiene polymer rubber composition.
    Type: Grant
    Filed: July 18, 1989
    Date of Patent: December 3, 1991
    Assignee: Monsanto Company
    Inventors: Aubert Y. Coran, Leonard H. Davis
  • Patent number: 5070166
    Abstract: Contact lenses which are optically clear, wettable, flexible, and of high oxygen permeability in the aqueous ocular environment of use, of a polymer containing polyoxyalkylene backbone units are disclosed, as well as the preparation thereof and methods of treating vision defects therewith.
    Type: Grant
    Filed: October 2, 1989
    Date of Patent: December 3, 1991
    Inventors: Kai C. Su, Frank Molock
  • Patent number: 5070109
    Abstract: A method is disclosed for the recovery of hydrocarbon products from elastomeric products such as discarded vehicle tires and other rubber products. The elastomeric products are immersed in a liquid heat transfer medium and heated to a temperature in the range of from about 575.degree. F. to about 600.degree. F. for a period of from about 0.5 to about 2.0 hours. The process produces a methane-containing gas product, a low boiling fuel oil fraction, a light fraction elastomeric hydrocarbon solid, a heavy fraction elastomeric hydrocarbon solid, and steel cord when steel belted radial tires are processed.
    Type: Grant
    Filed: December 20, 1989
    Date of Patent: December 3, 1991
    Assignee: Rubber Waste, Inc.
    Inventors: Thomas J. Ulick, William E. Carner
  • Patent number: 5066693
    Abstract: Phenolic molding compositions, particularly useful as sheet molding compositions comprise: 1) a resole phenole resin, 2) a thickening agent selected from the group consisting of alkaline earth metal oxides or hydroxides and silanes, 3) a filler selected from the group consisting of clay, talc, and mixtures thereof, and 4) an epoxy resin.
    Type: Grant
    Filed: February 12, 1990
    Date of Patent: November 19, 1991
    Assignee: Occidental Chemical Corporation
    Inventor: Manoj K. Gupta
  • Patent number: 5066708
    Abstract: A process of using compositions comprising certain thermoplastic elastomeric polymers for damping and damping compositions comprising soft thermoset polymer containing microscopically discrete segments of said thermoplastic elastomeric polymers.
    Type: Grant
    Filed: January 10, 1991
    Date of Patent: November 19, 1991
    Assignee: Rohm and Haas Company
    Inventors: Robert D. Koller, Sr., Carl P. Hemenway
  • Patent number: 5066702
    Abstract: A tire tread rubber composition including a diene rubber and at least one of silica and carbon black, the composition being characterized in that the amount of extract (E) defined below satisfies the equation (1) and that a hard filler 0.01 to 5 mm in mean particle size and at least 100kg/mm.sup.2 in Knoop hardness is used in an amount of 3 to 80 parts by weight per 100 parts by weight of the component rubber of the composition subjected to extraction with acetone/chloroform after the vulcanization of the composition, wherein said equation isE<0.4 (A-38)(1)wherein E and A are as defined in the specification.
    Type: Grant
    Filed: April 12, 1990
    Date of Patent: November 19, 1991
    Assignee: Toyo Tire & Rubber Company, Limited
    Inventors: Hirofumi Hayashi, Yo Matsumoto
  • Patent number: 5064880
    Abstract: A method for preparing an advanced epoxy cationic resin from an epoxy-based resin containing oxirane groups by converting at least some of the oxirane groups to cationic groups is improved by using as the epoxy-based resin a blend of (I) an epoxy-based resin obtained by reacting in the presence of a suitable catalyst (1) a diglycidylether of an aliphatic diol which diol is essentially free of ether oxygen atoms, such as a condensation product of 1,4-butanediol and epichlorohydrin, optionally (2) a diglycidylether of a dihydric phenol, for example a diglycidyl ether of bisphenol A, (3) a dihydric phenol such as bisphenol A, and optionally (4) a capping agent such as p-nonylphenol and (II) a different cationic epoxy-based resin. Such resin blends can be utilized in cathodic electrodeposition coating systems.
    Type: Grant
    Filed: September 8, 1989
    Date of Patent: November 12, 1991
    Assignee: The Dow Chemical Company
    Inventors: Nancy A. Rao, Richard A. Hickner
  • Patent number: 5063271
    Abstract: Hot melt wax compositions and a process for producing said hot melt wax compositions are disclosed. The wax compositions are suitable for coating fibrous materials, for example, paper and corrugated paper boards. The coating compositions comprise a mixture of a fully refined paraffin wax, a petroleum wax selected from the group consisting of a recrystallized heavy intermediate wax, a microcrystalline wax and mixtures thereof, a polymeric hydrocarbon compound, a tackifier resin and optionally, a phenolic anti-oxidant.
    Type: Grant
    Filed: May 31, 1990
    Date of Patent: November 5, 1991
    Assignee: Conoco Inc.
    Inventor: Richard L. Jones
  • Patent number: 5061735
    Abstract: Thermoplastic materials are separated and recovered, according to the present invention, utilizing a process wherein a mixture of the thermoplastic material to be recovered and one or more contaminants are simultaneously heated and agitated. The mixture is heated to the temperature at which the thermoplastic will adhere to itself, but at which the contaminant has not become tacky. Impacting thermoplastic particles agglomerate, while the contaminant particles do not adhere to other contaminant particles or to the thermoplastic particles. The resulting mixture is passed through a series of screens of increasing mesh size to separate the larger thermoplastic particles from the smaller contaminant particles.
    Type: Grant
    Filed: August 15, 1990
    Date of Patent: October 29, 1991
    Assignee: Plastic Recovery Systems, Inc.
    Inventor: Michael P. Zielinski
  • Patent number: RE33754
    Abstract: A grease compatible cyclic olefin extended polyurethane comprising the reaction product of an isocyanate terminated polyisocyanate with a polyol in the presence of a cyclic olefin extender and, a plasticizer having a total solubility parameter of .[.between about 8.3 and 8.9 or.]. about 9.1 and 9.7. Certain extended polyurethanes are characterized as being reenterable, such that they can be used for repairing, encapsulation or reclaiming electrical or telephone cables. Alternate formulations can be used as hard volume encapsulants for general elastomer use.
    Type: Grant
    Filed: April 20, 1990
    Date of Patent: November 26, 1991
    Assignee: CasChem, Inc.
    Inventors: Melvin Brauer, William J. Downey, Frank C. Naughton, Jerry C. Chao
  • Patent number: RE33755
    Abstract: A plasticized polyurethane gel system comprising the reaction product of an isocyanate compound and a polyol in the presence of a plasticizer compound having a total solubility parameter of .[.between about 8.3 and 8.9 or.]. between about 9.1 and 9.7.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: November 26, 1991
    Assignee: CasChem, Inc.
    Inventors: William J. Downey, Melvin Brauer, Jerry C. Chao
  • Patent number: RE33761
    Abstract: A plasticized polyurethane gel system comprising the reaction product of an isocyanate compound and a polyol in the presence of a ricinoleate plasticizer compound having a total solubility parameter of .[.between about 8.3 and 8.9 or.]. between about 9.1 and 9.7 .Iadd.to 10.1. .Iaddend.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: December 3, 1991
    Assignee: CasChem, Inc.
    Inventors: Melvin Brauer, William J. Downey, Frank C. Naughton