Patents by Inventor Maria Curry-Nkansah

Maria Curry-Nkansah 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).

  • Patent number: 6344503
    Abstract: A method is disclosed for the preparation of a water-based graft copolymer of a carboxyl functional polyester and an ethylenically unsaturated monomer having a low level of volatile organic compounds.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: February 5, 2002
    Assignee: BP Corporation North America Inc.
    Inventors: Asare Nkansah, Catherine T. McKee, Ajaykumar Desai, Maria Curry-Nkansah
  • Patent number: 6020455
    Abstract: A copolymer containing vinyl-3,4-cyclohexanediol and at least one monomer selected from acrylic acid, methacrylic acid, alkyl acrylate, alkyl methacrylate, styrene, acrylonitrile, butadiene, isoprene, vinyl acetate, maleic anhydride, ethylene, vinyl chloride, vinylidene dichloride, methyl styrene, vinyl toluene, acrylic and methacrylic acid, vinyl acetate, maleic anhydride, fumarate esters, maleate esters, vinylidene difluoride, vinyl fluoride, acrylic or methacrylic esters of the formula (I)H.sub.2 C.dbd.CHCOOR or H.sub.2 C.dbd.CCH.sub.3 COOR (I)where R is a aromatic or aliphatic hydrocarbon group containing 20 or fewer carbons and optionally containing oxygen, sulfur, or phosphorous, and mixtures thereof. A resin composition containing vinyl-3,4-cyclohexanediol, at least one carboxylic acid or ester thereof or anhydride, and optionally a polyol or diol other than vinyl-3,4-cyclohexanediol.
    Type: Grant
    Filed: February 11, 1998
    Date of Patent: February 1, 2000
    Assignee: BP Amoco Corporation
    Inventors: Wayne Robert Pretzer, Matthew Albert Kulzick, Paul Alan Koning, Asare Nkansah, Maria Curry-Nkansah