Curing composition
CA 1296450 C · Owner: Imperial Chemical Industries Plc · Inventors: Davies, Stephen P.; Fletcher, Angela C.; Palluel, Auguste L.L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A curing composition comprising a silane functional acrylic polymer component and a silane functional oligomer component. The polymer component is a co-polymer of functional silyl group-containing units derived from monomers of Formula:- CH2=CR1CO2(CH2)aL, The oligomer component is of formula E(GKL)6, in which E is derived from a multifunctional isocyanate oligomer, G is of general formula:- -O(CH2)5COCO(CH2)dOCO(CH2)2-, and K is of general formula:- -NR5(CH2)m-, and where L is a group of Formula,
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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
- Granted February 25, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 25, 2009.
- 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.