Coating composition for direct adhesion to thermosetting materials and laminates using such a composition
CA 2174736 A1 · Owner: Cray Valley S.A. · Inventors: Kaifasz, Patrick
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Composition useful as a gel layer for coating laminates or as a thermosetting resin composite material layer. The composition comprises for 100 parts by weight of the composition: 80 to 95 parts by weight of unsaturated polyester resin or vinylester resin and 5 to 20 parts by weight of an oligomer polyunsaturated ether. The composition is useful for direct adhesion of thermosetting materials without using an adhesion primer.
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
- Filed October 19, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 19, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 19, 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
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.