Composition with selected vinyl compounds and process for avoiding scorching of ethylene polymer composition
CA 1069243 A · Owner: Union Carbide Corporation · Inventors: Schober, Donald L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Vulcanizable ethylene polymer based compositions which are susceptible to scorching when processed at elevated temperatures, prior to vulcanization in the, presence of certain organic peroxide compounds are, protected against such scorching by the incorporation therein of monomeric vinyl compounds having the structure A-?=CH2 wherein R"' is C1-C3 hydrocarbon and A is phenyl C1-C6 hydrocarbon substituted phenyl, or R°-O-?- wherein R° is a C4 to C20 hydrocarbon radical. The hydrocarbon radicals are devoid of allyl or vinyl unsaturation. 1.
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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 January 1, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 1, 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.