Patents by Inventor Bart van Hoorn

Bart van Hoorn 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).

  • Release composition
    Patent number: 5447563
    Abstract: A biodegradable oil and water emulsion release composition for facilitating the unmoulding of hydraulic bonding material comprises as the oil component an ester of a hindered polyhydric alcohol having no hydrogen atoms attached to any carbon atom in a beta-position to any hydroxyl group and a straight or branched chain, saturated or unsaturated C.sub.4 -C.sub.24 monocarboxylic acid. The ester may be partial and the partial ester may be alkoxylated. In a preferred embodiment also a straight or branched chain, saturated or unsaturated C.sub.4 -C.sub.24 monohydric alcohol is present. Also a method of unmoulding has been described.
    Type: Grant
    Filed: September 20, 1994
    Date of Patent: September 5, 1995
    Assignee: Unilever Patent Holdings B.V.
    Inventor: Bart van Hoorn
  • Release composition
    Patent number: 5374303
    Abstract: A biodegradable oil and water emulsion release composition for facilitating the unmoulding of hydraulic bonding material comprises as the oil component an ester of a hindered polyhydric alcohol having no hydrogen atoms attached to any carbon atom in a beta-position to any hydroxyl group and a straight or branched chain, saturated or unsaturated C.sub.4 -C.sub.24 monocarboxylic acid. The ester may be partial and the partial ester may be alkoxylated. In a preferred embodiment also a straight or branched chain, saturated or unsaturated C.sub.8 -C.sub.24 monohydric alcohol is present. Also a method of unmoulding has been described.
    Type: Grant
    Filed: March 22, 1993
    Date of Patent: December 20, 1994
    Assignee: Unilever Patent Holdings B.V.
    Inventor: Bart van Hoorn