Sulfur vulcanizable interpolymers
CA 1045749 A · Owner: Goodyear Tire And Rubber Company (The) · Inventors: Lal, Joginder; Sandstrom, Paul H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of preparing sulfur vulcanizable unsaturated inter polymers of at least one terminally unsaturated monoolefin selected from the group consisting of 1-butene and .alpha.-olefins containing from five to 12 carbon atoms with at least one nonconjugated diolefin selected from the group or 4- and 5-methyl-1,4-hexadienes in which 5-methyl-1,4hexadiene is at least 15 mole percent and in which the terminally unsaturated monoolefin comprises from about 98 to about 70 mole percent of the total.
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 January 2, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 2, 1996.
- 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.