Patents by Inventor Walter C. M. van der Heijden

Walter C. M. van der Heijden 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).

  • Flame retardant polycarbonate polyester composition
    Patent number: 6635698
    Abstract: A transparent/translucent flame redardant composition comprises a uniform blend of a miscible resin blend of a polycarbonate resin and a cycloaliphatic polyester resin wherein the composition has at least a 80% pass rate in 10 test specimen in the Norme Francaise NF-P-92-505 flammability test of L'Association Francaise de Normalisation using test specimens with weight between about 1.0 to about 6.0 kilograms per square meter.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: October 21, 2003
    Assignee: General Electric Company
    Inventors: Johannes Martinus D. Goossens, Walter C. M. van der Heijden, Gabrie Hoogland, Johannes Jacobus M. de Moor, Hendrik Verhoogt
  • Flame retardant polycarbonate polyester composition
    Publication number: 20020128357
    Abstract: A transparent/ translucent flame redardant composition comprises a uniform blend of a miscible resin blend of a polycarbonate resin and a cycloaliphatic polyester resin wherein the composition has at least a 80% pass rate in 10 test specimen in the Norme Francaise NF-P-92-505 flammability test of L'Association Francaise de Normalisation using test specimens with weight between about 1.0 to about 6.0 kilograms per square meter.
    Type: Application
    Filed: December 22, 2000
    Publication date: September 12, 2002
    Inventors: Johannes Martinus D. Goossens, Walter C.M. van der Heijden, Gabrie Hoogland, Johannes Jacobus M.de Moor, Hendrik Verhoogt