Patents by Inventor Karin I. van de Wetering

Karin I. van de Wetering 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 blends, methods of manufacture, and methods of use
    Patent number: 7655737
    Abstract: A composition comprising a blend of: from 1 to 99 weight percent of a polycarbonate comprising from 10 to 90 mole percent of one or more arylate carbonate units of the formula wherein each Rf is independently a C1-12 hydrocarbon, halogen, or halogen-substituted C1-12 hydrocarbon, and u is 0 to 4; and from 10 to 90 mole percent of different carbonate units of the formula wherein at least 60% of the R1 groups are C6-30 aromatic groups, and from 1 to 99 weight percent of a polyester comprising units of the formula wherein T is a residue derived from a C5-C7 cycloaliphatic or C7-C12 aromatic dicarboxylic acid or a chemical equivalent thereof, and D is a residue derived from a C6-C12 aromatic or C2-C12 aliphatic diol or a chemical equivalent thereof, provided that at least 50 mole percent of D is derived from 1,4-cyclohexanedimethanol or a chemical equivalent thereof; and wherein the weight percent of the polycarbonate and the polyester are each based on the total weight of the polycarbonate and the
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: February 2, 2010
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Shreyas Chakravarti, Gabrie Hoogland, Vishvajit Chandrakant Juikar, Ganesh Kannan, Edward Kung, Nina P. Vaze, Karin I. van de Wetering
  • POLYCARBONATE-POLYESTER BLENDS, METHODS OF MANUFACTURE, AND METHODS OF USE
    Publication number: 20080119617
    Abstract: A composition comprising a blend of: from 1 to 99 weight percent of a polycarbonate comprising from 10 to 90 mole percent of one or more arylate carbonate units of the formula wherein each Rf is independently a C1-12 hydrocarbon, halogen, or halogen-substituted C1-12 hydrocarbon, and u is 0 to 4; and from 10 to 90 mole percent of different carbonate units of the formula wherein at least 60% of the R1 groups are C6-30 aromatic groups, and from 1 to 99 weight percent of a polyester comprising units of the formula wherein T is a residue derived from a C5-C7 cycloaliphatic or C7-C12 aromatic dicarboxylic acid or a chemical equivalent thereof, and D is a residue derived from a C6-C12 aromatic or C2-C12 aliphatic diol or a chemical equivalent thereof, provided that at least 50 mole percent of D is derived from 1,4-cyclohexanedimethanol or a chemical equivalent thereof; and wherein the weight percent of the polycarbonate and the polyester are each based on the total weight of the polycarbonate and the po
    Type: Application
    Filed: November 16, 2006
    Publication date: May 22, 2008
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Shreyas Chakravarti, Gabrie Hoogland, Vishvajit Chandrakant Juikar, Ganesh Kannan, Edward Kung, Nina P. Vaze, Karin I. van de Wetering