Fibrous substrate vulcanization-adhered to ethylene- propylene rubber composition
CA 1164328 A · Owner: Japan Synthetic Rubber Co. Ltd. · Inventors: Akiyama, Takeshi; Nagasawa, Mutsuo; Koide, Toshiyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
By blending 5 -40 parts by weight of a polyisoprene having an intrinsic viscosity n of 0,2 -1.5 dl/g as measured in toluene at 30°C and a total 1,2and 3,4-configuration content of 30% or less in its micro-structure into 100 parts by weight of an ethylenepropylene rubber, the adhesive property of the ethylenepropylene rubber to fibers can be improved while maintaining the heat resistance, weather resistance ozone resistance, low temperature properties electrical, insulating property and chemical resistance which are all characteristic of ethylene-propylene rubber.
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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 March 27, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 27, 2001.
- 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.