Polyester reinforced rubber

Details Polyester reinforced rubber Polyester reinforced rubber

C - Chemistry, Metallurgy

08

L

400/4511, 400/61

C08L 35/02 (2006.01) C08C 19/40 (2006.01) C08G 81/02 (2006.01) C08L 9/00 (2006.01)

Patent

CA 2007072

POLYESTER REINFORCED RUBBER Abstract of the Disclosure It is often desirable to increase the modulus of rubbers utilized in a wide variety of applications. This invention discloses a technique for modifying rubbers to improve their modulus without sacrificing other properties. By utilizing the process of this invention, rubber compositions having increased modulus are prepared by grafting polyester onto rubber. This can be accomplished by reacting a polydiene rubber with a thioacid or maleic anhydride and subsequently with the polyester. It is also possible to prepare such polyester modified rubber compositions by reacting an epoxidized rubber with the polyester.

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