Patents Examined by D. W. Woodward
  • Polymerizable compositions and the use of arylamines as hardening accelerators for these compositions
    Patent number: 4694041
    Abstract: The invention relates to the use of novel N,N-disubstituted arylamines containing polymerizable groups as hardening accelerators for polymerizable compositions based on unsaturated polyester resins, in particular for trowelling and water compositions.
    Type: Grant
    Filed: August 14, 1986
    Date of Patent: September 15, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Helmut-Martin Meier, Rolf Dhein, Jens Winkel, Gerhard Klein, Werner Kloker
  • Block polymer compositions
    Patent number: 4689289
    Abstract: Block polymer compositions are provided which are useful as positive or negative resists utilizing aryl onium salts in combination with silicone-organic block polymers, such as polydimethylsiloxane-poly-t-butylmethacrylate block polymers. A silicone prepolymer is used in combination with certain polymerizable vinyl monomers such as t-butylmethacrylate. The silicone prepolymer has chemically combined pinacolate groups in the backbone or terminal positions which are capable of generating free-radicals upon thermolysis.
    Type: Grant
    Filed: April 30, 1986
    Date of Patent: August 25, 1987
    Assignee: General Electric Company
    Inventor: James V. Crivello