Patents Represented by Attorney Donald M. Papuga

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  • Flame retardant polycarbonate composition
    Patent number: 3951910
    Abstract: A flame retardant polycarbonate composition comprising in admixture an aromatic carbonate polymer and a flame retardant additive which may be the metal salts of either monomeric or polymeric aromatic amide sulfonic acids, or mixtures thereof.
    Type: Grant
    Filed: December 28, 1973
    Date of Patent: April 20, 1976
    Assignee: General Electric Company
    Inventor: Victor Mark
  • Light stabilized polyester resin composition
    Patent number: 3950301
    Abstract: Ultraviolet light stable polyester resin compositions are provided by this invention. These compositions include as the stabilizer system, a stabilizing amount of a hydroxybenzotriazole ultraviolet light absorber.
    Type: Grant
    Filed: August 1, 1974
    Date of Patent: April 13, 1976
    Assignee: General Electric Company
    Inventors: Karl J. Balog, Donald I. Craft
  • Flame retardant polycarbonate composition
    Patent number: 3948851
    Abstract: A flame retardant polycarbonate composition comprising in admixture an aromatic carbonate polymer and a flame retardant additive which may be the metal salts of either monomeric or polymeric aromatic sulfonesulfonic acids, or mixtures thereof.
    Type: Grant
    Filed: December 28, 1973
    Date of Patent: April 6, 1976
    Assignee: General Electric Company
    Inventor: Victor Mark
  • Thermally stable polycarbonate composition
    Patent number: 3945967
    Abstract: A thermally stable polycarbonate composition comprising in admixture, an aromatic carbonate polymer and a stabilizing amount of an additive which is a combination of an epoxy compound prepared from an epichlorodydrin and the reaction product of an alkyl phosphite and the chlorine containing contaminant in said epoxy compound.
    Type: Grant
    Filed: October 7, 1974
    Date of Patent: March 23, 1976
    Assignee: General Electric Company
    Inventor: Donald B. G. Jaquiss
  • Separation of an isomeric mixture of acetoxy-aldehydes by catalytic decomposition of an aldehyde to acetic acid and methacrolein
    Patent number: 3943166
    Abstract: A process for separating 2-methyl-3-acetoxypropionaldehyde from an isomeric mixture of aldehydes by catalytic decomposition.
    Type: Grant
    Filed: June 21, 1973
    Date of Patent: March 9, 1976
    Assignee: General Electric Company
    Inventor: David F. Aycock
  • Process for preparing polycarbonates with a metal chelating agent
    Patent number: 3943101
    Abstract: An improved process for preparing a color stable polycarbonate by carrying out the reaction in the presence of an additive. The additive employed herein is gluconic acid or its alkali metal salts.
    Type: Grant
    Filed: May 31, 1974
    Date of Patent: March 9, 1976
    Assignee: General Electric Company
    Inventors: Jorgen H. Vestergaard, Gary W. Ragsdale
  • Flame retardant polycarbonate composition
    Patent number: 3940366
    Abstract: A flame retardant polycarbonate composition comprising in admixture an aromatic carbonate polymer and a flame retardant additive which may be the metal salts of either monomeric or polymeric substituted aromatic sulfonic acids, or mixtures thereof.
    Type: Grant
    Filed: December 28, 1973
    Date of Patent: February 24, 1976
    Assignee: General Electric Company
    Inventor: Victor Mark
  • Flame retardant polycarbonate composition
    Patent number: 3933734
    Abstract: A flame retardant polycarbonate composition comprising in admixture an aromatic carbonate polymer and a flame retardant additive which may be the metal salts of either monomeric or polymeric aromatic sulfonic acids, or mixtures thereof.
    Type: Grant
    Filed: December 28, 1973
    Date of Patent: January 20, 1976
    Assignee: General Electric Company
    Inventors: Victor Mark, Thomas J. Hoogeboom
  • Thermally stable translucent polycarbonate composition
    Patent number: 3933730
    Abstract: A thermally stable translucent polycarbonate composition comprising in admixture an aromatic carbonate polymer and a minor amount of a mixture of a poly(dimethylsiloxane) gum and divided silica.
    Type: Grant
    Filed: August 9, 1974
    Date of Patent: January 20, 1976
    Assignee: General Electric Company
    Inventor: Thomas J. Hoogeboom
  • Flame retardant polycarbonate composition
    Patent number: 3931100
    Abstract: A flame retardant polycarbonate composition comprising in admixture an aromatic carbonate polymer and a flame retardant additive which may be the metal salts of aliphatic and olefinic sulfonic acids, and mixtures thereof.
    Type: Grant
    Filed: December 28, 1973
    Date of Patent: January 6, 1976
    Assignee: General Electric Company
    Inventor: Victor Mark