Polyester reinforced rubber

Details Polyester reinforced rubber Polyester reinforced rubber

1990-11-07

1993-04-13

Short, Patricia A.

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

Synthetic resins

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

525173, 525174, 525175, 525177, 525437, C08L 900, C08L 700, C08L 2316, C08G 8102

Patent

active

052023842

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: 2817694 (1957-12-01), Creed
patent: 3297660 (1967-01-01), Becker
patent: 4290927 (1981-09-01), Tanaka
patent: 4535119 (1985-08-01), Tanibuchi et al.
patent: 4594388 (1986-06-01), Arai
patent: 4708987 (1987-11-01), Hergenrother et al.
patent: 4753980 (1988-06-01), Deyrup
patent: 4777211 (1988-10-01), Lavengood et al.
patent: 4843124 (1989-06-01), Wolfe
Hackh's Chemical Dictionary, p. 675, McGraw-Hill Book Co., 4th ed., 1972.

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