C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 9/02 (2006.01) B29C 43/36 (2006.01) B29D 30/26 (2006.01) B32B 25/04 (2006.01) B32B 25/14 (2006.01) C08L 27/06 (2006.01)
Patent
CA 2066519
Abstract of the Disclosure TURNUP BLADDER HAVING OUTER LAYER PVC/ACRYLONITRILE-BUTADIENE RUBBER BLEND A turnup bladder for use in tire making as an outside surface coating which is a release coating that also imparts improved durability and cut resistance. This outside surface coating is an elastomeric polymer blend containing from about 10 to about 60, preferably from about 40 to about 60 parts by weight of polyvinyl chloride and from about 40 to about 90, preferably about 40 to about 60 parts by weight of an acrylonitrile-butadiene rubber per 100 parts of polymer wherein the acrylonitrile-butadiene rubber comprises from about 25 to about 40 parts by weight of acrylonitrile and from about 60 to about 75 parts by weight of butadiene per 100 parts of said acrylonitrile-butadiene rubber.
Smart & Biggar
The Goodyear Tire & Rubber Company
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