Coating composition to be processed as two components, for the preparation of pur elastomers
CA 2120860 A1 · Owner: Huls Aktiengesellschaft · Inventors: Speier, Peter; Lomolder, Rainer
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Coating composition to be processed as two components, for the preparation of PUR elastomers A solvent-free or low-solvent coating composition to be processed as two components is disclosed. The composition comprises an isocyanate component A and a curing agent component B wherein, A) is an aliphatic or cycloaliphatic polyisocyanate prepolymer having an NCO content of from 1 to 15% by weight B 1) a diketimine, of the general formula I )2, in which R1 is an alkylene radical having 2 to 20 carbon atoms an, alkylene radical having 4 to 100 carbon atoms containing oxygen and/or N-alkyl groups as bridging members or a cycloalkylene radical, having 5 to 20 carbon atoms R2 and R3 are identical or …
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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
- Filed April 8, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 8, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 8, 2016.
- 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
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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.