Polyester reinforced rubber

Details Polyester reinforced rubber Polyester reinforced rubber

1989-03-27

1991-02-26

Short, Patricia

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525 64, 525167, 525173, 525174, 525175, C08L 2330, C08L 1500

Patent

active

049962620

ABSTRACT:
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.

REFERENCES:
patent: 4290927 (1981-09-01), Tanaka
patent: 4594388 (1986-06-01), Arai
patent: 4753980 (1988-06-01), Deyrup
patent: 4843124 (1989-06-01), Wolfe

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