Butyl rubber-unhydrogenated aliphatic petroleum resin latex and process therefor
CA 1066838 A · Owner: Exxon Research And Engineering Company · Inventors: Malloy, Paul L.; Thompson, Francis M.; O'Farrell, Charles P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improved butyl rubber-hydrocarbon resin latex composition are disclosed, consisting essentially of a latex of butyl rubber and an unhydrogenatad aliphatic petroleum hydrocarbon resin prepared from a coe-, mulsified solution blend of the rubber and resin wherein the weight ratio of rubber to resin is about 4:1 to about 0.8:1 wherein the resin has an, aniline point greater than 100°C. and wherein the coemulsification is performed with the sodium salt of the sulfate ester of nonylphenoxypoly (ethylene oxy) ethanol comprising four moles of ethylene oxide. The compositions are useful as adhesives especially for polyolefins. As such they are very useful in preparing coated polyolefin fabrics …
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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 November 20, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 20, 1996.
- 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.