Elastoplastic compositions of butyl rubber and polyolefin resins
CA 1096986 A · Owner: Monsanto Company · Inventors: Coran, Aubert Y.; Patel, Raman P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An elastoplastic composition comprising a blend of from about 20 to 45 parts by weight of thermoplastic crystalline polyolefin resin and from about 80 to 55 parts by weight of butyl rubber, chlorobutyl rubber or, bromobutyl rubber per 100 total parts by weight of polyolefin resin and rubber wherein the rubber is dispersed particles of cross-linked rubber which composition is processable as a thermoplastic and is elastomeric. me elastoplastic composition of this invention is useful for making a variety of articles such as tires hoses, belts, gaskets, moldings and molded parts. They are particularly useful for making articles by extrusion injection, molding and compression molding techniques. …
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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 3, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 3, 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.