Patents by Inventor Andreas Weier

Andreas Weier 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).

  • Organopolysiloxanes with polyether and ester groups linked to a common spacer group
    Patent number: 5208311
    Abstract: Organopolysiloxanes having polyether and ester groups linked to a common spacer group, wherein the spacer group is linked through an SiC bond to the siloxane backbone and a method for the synthesis thereof are disclosed. These compounds are useful as additives for plastics, lacquers and binders for reducing the coefficient of sliding friction, for improving scratch resistance and increasing abhesiveness. If the compounds are esters of acrylic or methacrylic acid, they can be used as radiation-curable lacquers and coating compositions.
    Type: Grant
    Filed: January 24, 1992
    Date of Patent: May 4, 1993
    Assignee: Th. Goldschmidt AG
    Inventors: Dietmar Schaefer, Andreas Weier, Dietmar Wewers
  • 2-(3'-butenyl)-3,4-dihydro-2H-pyrans, their synthesis and use
    Patent number: 5189184
    Abstract: 2-(3'-butenyl)-3,4-dihydro-2H-pyrans of the general formula ##STR1## wherein R is a hydrogen group or an alkyl group with 1 to 6 carbon atoms. Methods for the synthesis of these compounds and their use as reactive modifiers or diluents for cationically curable monomers or polymers.
    Type: Grant
    Filed: July 29, 1991
    Date of Patent: February 23, 1993
    Assignee: Th. Goldschmidt AG
    Inventors: Dietmar Schaefer, Andreas Weier, Christian Weitemeyer, Dietmar Wewers