Adhesion promoters
CA 1315796 C · Owner: Ciba-Geigy Ag · Inventors: Mulhaupt, Rolf; Simon, Hubert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Adhesion promoters 3-16172/=, ABSTRACT OF THE DISCLOSURE Compounds of formula (I), (I), wherein one of the radicals R1 or R2 is -N=C=O and the other is -NHC(O)S(CH2)2Si(OR3)3, wherein R3 is C1-C4 alkyl or phenyl, are most suitable for use as adhesion promoters for polyurethane single-component or two-component adhesives and also as primers.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted April 6, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 6, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.