Patents by Inventor Gerrti de Wit

Gerrti de Wit 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-polyester compositions with enhanced flow
    Patent number: 6599966
    Abstract: A molding composition comprising (a) from 10 to 90 weight percent of a polyester resin; (b) from 90 to 10 weight percent of an aromatic polycarbonate, polyarylate, polyester carbonate resin or blend thereof; and (c) a flow improving amount of lignin and/or a compound having a phosphonium sulfonate group.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: July 29, 2003
    Assignee: General Electric Company
    Inventors: Jan Paul Penning, Gerrti de Wit
  • Polycarbonate-polyester compositions with enhanced flow
    Publication number: 20020132889
    Abstract: A molding compositions comprising (a) from 10 to 90 weight percent of a polyester resin; (c) from 90 to 10 weight percent of an aromatic polycarbonate, polyarylate, polyester carbonate resin or blend thereof and a flow improving amount of lignin and/or a compound having a phosphonium sulphonate group.
    Type: Application
    Filed: December 15, 2000
    Publication date: September 19, 2002
    Inventors: Jan Paul Penning, Gerrti de Wit