Patents Represented by Attorney, Agent or Law Firm Aaron B. Retzer
  • Patent number: 6201080
    Abstract: The instant invention teaches a method for forming a syndiotactic 1,2-polybutadiene product having a syndiotacticity of more than 66.5% and a melting temperature of more than about 100° C. The method includes polymerizing 1,3-butadiene in solution with a solvent, in the presence of catalytically effective amounts of: (a) an organomagnesium compound; (b) a chromium compound; and, (c) a dihydrocarbyl hydrogen phosphite. The present invention also contemplates a product of the method and an article made from the product.
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: March 13, 2001
    Assignee: Bridgestone Corporation
    Inventors: Steven X. L. Luo, Yoichi F. Ozawa, James E. Hall, Jung W. Kang
  • Patent number: 6054532
    Abstract: The present invention teaches a method for enabling the formation of a high damping, soft polymer gel. The method includes: reacting a poly(alkenyl benzene-co-maleimide) polymer with a maleated polyalkylene and a maleated hydrogenated block copolymer and an alkyl diamine grafting agent under substantially dry conditions sufficient to form a hydrogenated block copolymer-polyalkylene grafted poly(alkenyl benzene-co-maleimide) polymer product; and, dispersing the hydrogenated block copolymer-polyalkylene grafted poly(alkenyl benzene-co-maleimide) polymer product with an extender oil sufficient to form the gel. The present invention also contemplates a polymer gel composition, a polymer composition and an article manufactured from the polymer gel composition.
    Type: Grant
    Filed: May 6, 1998
    Date of Patent: April 25, 2000
    Assignee: Bridgestone Corporation
    Inventors: Xiaorong Wang, Victor J. Foltz, James E. Hall, Hideo Takeichi, Takahiro Matsuse, Naruhiko Mashita, Shinichi Toyosawa
  • Patent number: 6009923
    Abstract: A tubeless pneumatic vehicle tire having an interliner ply having reduced resistance to air permeability. The interliner rubber composition is a a graft copolymer of a butyl rubber or a halogenated butyl rubber backbone having pendently grafted thereto a polymerized metal salt of an unsaturated carboxylic acid.
    Type: Grant
    Filed: December 11, 1997
    Date of Patent: January 4, 2000
    Assignee: Bridgestone Corporation
    Inventors: William L. Hergenrother, Joseph K. Valaitis
  • Patent number: 5994468
    Abstract: The instant invention teaches a method for enabling the formation of a high damping, soft polymer gel. The method includes: reacting a poly(maleimide-co-alkenyl benzene) polymer with a nylon and an alkyl diamine under substantially dry conditions sufficient to form a nylon grafted poly(maleimide-co-alkenyl benzene) polymer product; and, dispersing the nylon grafted poly(maleimide-co-alkenyl benzene) polymer product with an extender oil sufficient to form the gel. The instant invention also contemplates a polymer gel composition, a polymer composition and an article manufactured from the polymer gel composition.
    Type: Grant
    Filed: May 6, 1998
    Date of Patent: November 30, 1999
    Assignee: Bridgestone Corporation
    Inventors: Xiaorong Wang, Victor J. Foltz, James E. Hall, Naruhiko Mashita, Hideo Takeichi
  • Patent number: 5955553
    Abstract: There is disclosed a process for the regulation of the molecular weight of high cis polybutadiene prepared by polymerizing butadiene under solution polymerization conditions employing as the catalyst system a mixture of (a) organoaluminum compounds; (b) organonickel compounds; and (c) fluorine containing compounds; said polymerization being conducted in the presence of alkali or alkaline earth metal salts of organic carboxylic acids.
    Type: Grant
    Filed: August 19, 1998
    Date of Patent: September 21, 1999
    Assignee: Bridgestone Corporation
    Inventors: James Oziomek, Thomas A. Antkowiak, Tristram W. Bethea
  • Patent number: 5645880
    Abstract: Food products are preserved or stabilized against deterioration of organoleptic properties during storage by contacting the food products with an aqueous solution of a stabilizing composition containing at least one stabilizing acid and a protein-polysaccharide complex composition including at least one water-soluble polysaccharide and at least one substantially water-insoluble protein. Methods of preparation of the stabilizing composition and numerous methods of use of the protein-polysaccharide complex composition in the preservation of a variety of perishable seafood or other food products are also provided.
    Type: Grant
    Filed: December 26, 1995
    Date of Patent: July 8, 1997
    Inventor: Blaise McArdle