Nitrile group-containing highly saturated polymer rubber latex and process for production thereof
CA 1302615 C · Owner: Nippon Zeon Co. Ltd. · Inventors: Mori, Osamu; Oyama, Motofumi; Sugi, Nagatoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a process for producing a nitrile groupcontaining rubber latex comprising an aqueous dispersion of a nitrile group-containing highly saturated rubber having an iodine value of not more than 120 and an average particle diameter of from about 0.30 to about 0.65. The rubber latex is produced by converting a solution of a nitrile group-containing highly saturated polymer rubber having an iodine value of not more than 120 in an inert solvent into an oil-in-water emulsion using water and an emulsifier, and removing the solvent from the resulting emulsion. The solvent is a mixture of an aromatic solvent and a halogenated hydrocarbon or a mixture of a ketone and an aliphatic or …
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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 June 2, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 2, 2009.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.