Patents by Inventor Peter W. van Es

Peter W. van Es 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).

  • Copolyestercarbonate composition derived from dihydricphenol, carbonate precursor and alpha omega-dicarboxylic acid
    Patent number: 5510448
    Abstract: A composition comprising a copolyestercarbonate derived from a dihydric phenol, a carbonate precursor, and an aliphatic alpha omega dicarboxylic acid or ester precursor wherein the dicarboxylic acid or ester precursor has from 10 to about 20 carbon atoms, inclusive, and is present in the copolyestercarbonate in quantities of from about 2 to 30 mole percent of the dihydric phenol.
    Type: Grant
    Filed: January 17, 1995
    Date of Patent: April 23, 1996
    Assignee: General Electric Company
    Inventors: Luca P. Fontane, Kenneth F. Miller, Christianus A. A. Claesen, Peter W. van Es, Theodorus O. N. de Vroomen, Clayton V. Quinn, Richard W. Campbell
  • Copolyestercarbonate composition derived from dihydric phenol, carbonate precursor and an alpha omega dicarboxylic acid
    Patent number: 5510182
    Abstract: A composition comprising a copolyestercarbonate derived from a dihydric phenol, a carbonate precursor, and an aliphatic alpha omega dicarboxylic acid or ester precursor wherein the dicarboxylic acid or ester precursor has from 10 to about 20 carbon atoms, inclusive, and is present in the copolyestercarbonate in quantities of from about 2 to 30 mole percent of the dihydric phenol.
    Type: Grant
    Filed: March 29, 1994
    Date of Patent: April 23, 1996
    Assignee: General Electric Company
    Inventors: Luca P. Fontana, Kenneth F. Miller, Adrianus A. Claesen, Peter W. van Es, Theodorus O. N. de Vroomen, Clayton B. Quinn, Richard W. Campbell
  • Phenolic compound end capped polyester carbonate
    Patent number: 5321114
    Abstract: A composition comprising a copolyestercarbonate derived from a dihydric phenol, a carbonate precursor, and an aliphatic alpha omega dicarboxylic acid or ester precursor wherein the dicarboxylic acid or ester precursor has from 10 to about 20 carbon atoms, inclusive, and is present in the copolyestercarbonate in quantities of from about 2 to 30 mole percent of the dihydric phenol.
    Type: Grant
    Filed: April 8, 1993
    Date of Patent: June 14, 1994
    Assignee: General Electric Company
    Inventors: Luca P. Fontana, Kenneth F. Miller, Christianus A. A. Claesen, Peter W. van Es, Theodorus O. N. de Vroomen, Clayton B. Quinn, Richard W. Campbell
  • Method of coextruding a plate-shaped product and the products thus obtained
    Patent number: 5258215
    Abstract: The invention relates to a method for the coextrusion of a plate-shaped product. In the method according to the invention at least one coating layer is provided by means of coextrusion which is composed of a special polymer mixture. This mixture enables obtaining a matt surface and can be provided very uniformly on the major layer of polycarbonate by coextrusion. The polymer mixture comprises 84-92% by weight of polycarbonate, 4-8% by weight of talcum and 4-8% by weight of a mattifying agent based on acrylate copolymers.
    Type: Grant
    Filed: November 20, 1992
    Date of Patent: November 2, 1993
    Assignee: General Electric Company
    Inventors: Peter W. van Es, Petrus J. Plompen
  • Method of coextruding a plate-shaped product
    Patent number: 5234648
    Abstract: The invention relates to a method for the coextrusion of a plate-shaped product. In the method according to the invention at least one coating layer is provided by means of coextrusion which is composed of a special polymer mixture. This mixture enables obtaining of a matt surface and can be provided very uniformly on the major layer of polycarbonate by coextrusion. The polymer mixture comprises 84-92% by weight of polycarbonate, 4-8% by weight of talcum and 4-8% by weight of a mattifying agent based on acrylate copolymers.
    Type: Grant
    Filed: May 30, 1991
    Date of Patent: August 10, 1993
    Assignee: General Electric Company
    Inventors: Peter W. van Es, Petrus J. Plompen