Curable resin compositions
CA 1323950 C · Owner: Iwasawa, Naozumi · Inventors: Isozaki, Osamu; Iwasawa, Naozumi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a curable resin composition consisting essentially of: (i) a resin (A) containing .alpha..beta.-unsaturated carbonyl group and primary and/or secondary hydroxyl group or, (ii) a mixture of a resin (B) containing .alpha..beta.-unsaturated carbonyl group and a resin (C) containing primary and/or secondary hydroxyl group, and, (iii) at least one curing catalyst selected from the group consisting of alkali metal alkoxides, metal hydroxides organic acid salts of metals, quaternary ammonium hydroxides, quaternary phosphonium hydroxides tertiary, sulfonium hydroxides and organic acid salts of these onium hydroxides.
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 November 2, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 2, 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.