Vinyl pyridine latex stabilized with a resorcinol- formaldehyde novolak
CA 1090935 A · Owner: General Tire & Rubber Company (The) · Inventors: Sharma, Satish C.; Kalafus, Edward F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, An alkaline aqueous emulsion of a rubbery vinyl pyridine copolymer is stabilized by the presence of a minor amount by weight of a resorcinol-formaldehyde novolak wherein said emulsion is free of soaps added after the polymerization of the copolymer. High H-adhesions are obtained with cord dips made using the stabilized emulsion.
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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 December 2, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 2, 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.