Wherein Phenolic-aldehyde Or Phenolic-aldehyde-type Solid Polymer Or Sicp Contains Nitrogen Or Ethylenic Unsaturation Patents (Class 525/490)
  • Copolymerizable molding compositions based on unsaturated polyurethanes
    Patent number: 4223099
    Abstract: Molding compositions comprising a "terminally unsaturated"polyurethane, a copolymerizable vinyl or vinylidene compound and a rubbery-elastic polymer having a glass transition temperature of between -90.degree. and +10.degree. C. can be used for the preparation of molded articles having a considerably increased impact strength and a good heat distortion temperature, strength and rigidity.
    Type: Grant
    Filed: December 15, 1978
    Date of Patent: September 16, 1980
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hannes von Harpe, Ludwig Bottenbruch, Bernd Peltzer, Leo Morbitzer, Helmut Korber, Hansjochen Schulz-Walz