Process for preparing cyclorene elastomers
CA 1053850 A · Owner: Goodyear Tire And Rubber Company (The) · Inventors: Bell, Anthony J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
INVENTOR: Anthony J Bell, INVENTION: AN IMPROVED PROCESS FOR PREPARING CYCLORENE ELASTOMERS, Abstract of the Disclosure There is disclosed a new procedure for preparing chlorine-containing polyalkenamers in which one or more chlorine-containing comonomeric adducts are first formed in situ by heating hexachlorocyclopentadiene in the presence of an excess of a cyclopolyene compound prior, to the addition of an olefin metathesis catalyst.
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 May 1, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 1, 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.