Patents by Inventor Gary L. Freimiller

Gary L. Freimiller has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Polycarbonate end capped with vinylene carbonate compound
    Patent number: 4661567
    Abstract: Carbonate polymers containing at least one terminal group represented by the general formula ##STR1## wherein R and R.sup.1 are independently selected from hydrogen and monovalent hydrocarbon radicals.
    Type: Grant
    Filed: September 14, 1984
    Date of Patent: April 28, 1987
    Inventors: John A. Tyrell, Gary L. Freimiller
  • Aromatic polycarbonate containing thieno-2-one-5,5-dioxide terminal groups
    Patent number: 4595733
    Abstract: Polymers containing at least one terminal group represented by the general formula ##STR1## wherein R and R.sup.1 are independently selected from hydrogen and monovalent hydrocarbon radicals.
    Type: Grant
    Filed: September 14, 1984
    Date of Patent: June 17, 1986
    Assignee: General Electric Company
    Inventors: John A. Tyrell, Gary L. Freimiller
  • Hydrolytically stabilized polycarbonates
    Patent number: 4576982
    Abstract: Thermoplastic composition exhibiting improved hydrolytic stability comprised of in physical admixture at least one aromatic carbonate polymer and an effective hydrolytic stabilizing amount of at least one compound represented by the general formula ##STR1## wherein R and R.sup.1 are independently selected from hydrogen, monovalent hydrocarbon radicals, and monovalent hydrocarbonoxy radicals.
    Type: Grant
    Filed: September 14, 1984
    Date of Patent: March 18, 1986
    Assignee: General Motors Company
    Inventors: John A. Tyrell, Gary L. Freimiller
  • Composition comprising graft polycarbonates
    Patent number: 4469852
    Abstract: This invention relates to novel thermoplastic compositions that are based on an aromatic polycarbonate in admixture with impact modifying quantities of a modified aromatic polycarbonate to which are grafted polymers of a long chain alkenyl compound.
    Type: Grant
    Filed: June 15, 1983
    Date of Patent: September 4, 1984
    Assignee: General Electric Company
    Inventors: John A. Tyrell, Omar M. Boutni, Gary L. Freimiller
  • Composition comprising a polyolefin and a block copolymer of a dihydric phenol monomer, a carbonate precursor and a polyphenylene oxide resin
    Patent number: 4463132
    Abstract: A novel thermoplastic composition is disclosed which is based on polyolefin and a block copolymer of a dihydric phenolic monomer, a carbonate precursor and a polyphenylene oxide resin. These compositions may be used as molding resins and have better compatibility than admixtures of aromatic polycarbonate and a polyolefin.
    Type: Grant
    Filed: June 15, 1983
    Date of Patent: July 31, 1984
    Assignee: General Electric Company
    Inventors: John A. Tyrell, Ping Y. Liu, Gary L. Freimiller
  • Carbonate copolymers prepared from imide reactants
    Patent number: 4393190
    Abstract: Novel carbonate polymers comprised of the reaction product of a dihydric phenol, a carbonate precursor, and at least one imide selected from the group of compounds represented by the formulae ##STR1##
    Type: Grant
    Filed: September 21, 1981
    Date of Patent: July 12, 1983
    Assignee: General Electric Company
    Inventors: John A. Tyrell, Gary L. Freimiller
  • Thermally stable polycarbonate compositions
    Patent number: 4312803
    Abstract: Thermally stable polycarbonate compositions are obtained by admixing with a high molecular weight aromatic polycarbonate resin a stabilizing amount of a bisphosphite.
    Type: Grant
    Filed: March 16, 1979
    Date of Patent: January 26, 1982
    Assignee: General Electric Company
    Inventors: Ronald L. Markezich, Gary L. Freimiller, Walter K. Olander, Robert J. Axelrod