Patents by Inventor Jean-Marc Jacques Eric Bertens

Jean-Marc Jacques Eric Bertens 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: 6187875
    Abstract: Linear, carboxylic acid functional polyester resins produced by reaction of: (a) at least one aromatic and/or cycloaliphatic dicarboxylic acid compound A, comprising two aromatic and/or secondary aliphatic carboxyl groups in the 1,2-position, or anhydride thereof; (b) at least one hydroxyl monocarboxylic acid B1, comprising two aliphatic hydroxyl groups, which groups each independently may be primary or secondary hydroxyl groups and wherein the carboxylic acid group is a tertiary carboxyl group, mixed with a cycloaliphatic diol B2 in an amount of at least 5 wt %, relative to the weight of B1 and B2 together; (c) optionally an aliphatic dicarboxylic acid C, comprising an alkylene group having from 3 to 8 carbon atoms and having two terminal aliphatic carboxyl groups; and (d) optionally an aromatic monocarboxylic acid D, the molar ratio of the compounds A:B1+B2:C:D being X:Y+X+Z1:Y:Z2, wherein X ranges from 1 to 8, Y ranges from 0 to 8, Z1 ranges from −3 to 3 and Z2 ranges from 0 to 2,
    Type: Grant
    Filed: October 19, 1999
    Date of Patent: February 13, 2001
    Assignee: Shell Oil Company
    Inventors: Ann Elise Germaine Christiane Bergmans, Jean-Marc Jacques Eric Bertens, Petrus Gerardus Kooijmans, Marc Jozef Rans, Christian Jean Charles De Cock