Patents Examined by Sam A. Acquati
  • Adhesion promoters
    Patent number: 4963636
    Abstract: Compounds of formula (I) ##STR1## wherein one of the radicals R.sup.1 or R.sup.2 is --N.dbd.C.dbd.O and the other is --NHC(O)S(CH.sub.2).sub.3 Si(OR.sup.3).sub.3, wherein R.sup.3 is C.sub.1 -C.sub.4 alkyl or phenyl, are most suitable for use as adhesion promoters for polyurethane single-component or two-component adhesives and also as primers.
    Type: Grant
    Filed: February 12, 1990
    Date of Patent: October 16, 1990
    Assignee: Ciba-Geigy Corporation
    Inventors: Rolf Mulhaupt, Hubert Simon