Patents by Inventor Arnold J. Voskamp

Arnold J. Voskamp 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).

  • Thermosetting composition
    Patent number: 4948821
    Abstract: The invention relates to a thermosetting composition comprisingA: 30-65 parts by weight of unsaturated polyester with a molar mass per double bond of 142-500B: 25-55 parts by weight of ethylenically unsaturated monomerC: 3-35 parts by weight of slightly ethylenically unsaturated polyesterD: 0-750 parts by weight of filler, fibrous material and, if so desired, other usual additives, characterized in that as as slight ethylenically unsaturated polyester an unsaturated polyester is used which has a molar mass per double bond of 1200-20,000 and an acid number of 5-50, and in which between 50 and 90% of the unsaturation consists of a terminal monoester of a .alpha., .beta.-unsaturated dicarboxylic acid. The composition presents little or no shrinkage in setting.
    Type: Grant
    Filed: August 18, 1988
    Date of Patent: August 14, 1990
    Assignee: Stamicarbon B.V.
    Inventors: Adrianus J. De Koning, Arnold J. Voskamp