Green strength of elastomer blends
CA 1109989 A · Owner: The Goodyear Tire & Rubber Company · Inventors: Friedman, Emil M.; Bauer, Richard G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The green strength of elastomer blends of natural or synthetic cis-1,4-polyisoprene and synthetic elastomers is improved by including an ionogenic group having the formula, Where X1 and X2 are selected from the group consisting of hydrogen, methyl, carboxyl, fluorine chlorine, bromine, and iodine, R, is H C, through C 10, - (CH2)? COOH, n - 0 to 4 or a halogen, m is 0 to 11, and A is OH OM or, NH2 where M is a metal selected from groups 1A 2A, 3A or, 2B of the Periodic Table. The said ionogenic group can be incorporated into the chain of the synthetic elastomer a? through any conventional polymerization of the monomers forming the synthetic elastomer. Generally the blends have, greatly …
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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 September 29, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 29, 1998.
- 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.