Preparation of b-stage unsaturated polyester resins
CA 1076293 A · Owner: Syntex (U.S.A.) Llc. · Inventors: Kracklauer, John J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A novel catalyst system is provided useful for the preparation of B-stage unsaturated polyester resins having, as the essential components, a peroxide catalyst and a ferrocene derivative in certain critical ratios. Incorporation of a temperature responsive per oxide catalyst provides later cure of the resin. The product B-stage resins offer the advantage. of improved molding characteristics.
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 22, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 22, 1997.
- 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.