Fast-curing olefin copolymer rubber compositions
CA 1203936 A · Owner: E. I. Du Pont De Nemours And Company · Inventors: Honsberg, Wolfgang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An elastomeric composition comprising an EPDM copolymer rubber; a sulfur curative for the copolymer rubber; about 5-15 parts by weight per 100 parts copolymer rubber of a chlorosulfonated polyolefin which contains 20-50 weight percent chlorine and 0.2-1.5 weight percent sulfur; and about 0.25-1 parts by weight per 100 parts copolymer rubber of a diamine-generating curing agent.
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 29, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 29, 2003.
- 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.