Patents by Inventor Wilfred W.G.J. Van Pelt

Wilfred W.G.J. Van Pelt 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).

  • E/E connector and polymer composition used therein
    Patent number: 9080029
    Abstract: This invention relates to a flame retardant polyamide composition comprising a semi-aromatic polyamide, a flame retardant system and a reinforcing agent, wherein the semi-aromatic polyamide comprises units derived from dicarboxylic acids comprising terephthalic acid and aliphatic dicarboxylic acids, and aliphatic diamines. In the semi-aromatic polyamide the aliphatic diamines consist of 10-70 mole % of a short chain aliphatic diamine with 2-5 C atoms and 30-90 mole % of a long chain aliphatic diamine with at least 6 C atoms; the dicarboxylic acids consist of 5-65 mole % aliphatic dicarboxylic acid and optionally aromatic dicarboxylic acid other than terephthalic acid and 35-95 mole % terephthalic acid; and the combined molar amount of terephthalic acid and the long chain aliphatic diamine is at least 60 mole %, relative to the total molar amount of the dicarboxylic acids and diamines.
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: July 14, 2015
    Assignee: DSM IP ASSETS B.V.
    Inventors: Rudy Rulkens, Wilfred W. G. J. Van Pelt, Kang-Tse Hsu, Peter R. Dufour, Hiromi Iribe
  • E/E CONNECTOR AND POLYMER COMPOSITION USED THEREIN
    Publication number: 20100279550
    Abstract: This invention relates to a flame retardant polyamide composition comprising a semi-aromatic polyamide, a flame retardant system and a reinforcing agent, wherein the semi-aromatic polyamide comprises units derived from dicarboxylic acids comprising terephthalic acid and aliphatic dicarboxylic acids, and aliphatic diamines. In the semi-aromatic polyamide the aliphatic diamines consist of 10-70 mole % of a short chain aliphatic diamine with 2-5 C atoms and 30-90 mole % of a long chain aliphatic diamine with at least 6 C atoms; the dicarboxylic acids consist of 5-65 mole % aliphatic dicarboxylic acid and optionally aromatic dicarboxylic acid other than terephthalic acid and 35-95 mole % terephthalic acid; and the combined molar amount of terephthalic acid and the long chain aliphatic diamine is at least 60 mole %, relative to the total molar amount of the dicarboxylic acids and diamines.
    Type: Application
    Filed: July 17, 2008
    Publication date: November 4, 2010
    Inventors: Rudy Rulken, Wilfred W.G.J. Van Pelt, Kang-Tse Hsu, Peter R. Dufour, Hiromi Iribe