High modulus rubber composition

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

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525182, C08L 700, C08L 900, C08L 906, C08L 5104

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049925130

ABSTRACT:
It is 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. The subject invention more specifically relates to a process for preparing a rubber composition having a high modulus which comprises reacting at least one epoxidized rubber with from about 2 phr to about 55 phr of at least one nylon at a temperature which is within the range of about 140.degree. C. to about 300.degree. C.

REFERENCES:
patent: Re30322 (1980-07-01), Hammer
patent: 4535119 (1985-08-01), Tanibuchi et al.
patent: 4708987 (1987-11-01), Hergenrother et al.
patent: 4755552 (1988-07-01), Jadamus et al.
patent: 4777211 (1988-10-01), Lavengood et al.
patent: 4882382 (1989-11-01), Udipi
Fourth International Conference on Reactive Processing of Polymers, Oct. 29-31, 1986, Gardner Student Center, University of Akron (see especially Hoshino on pp. 22-27).
Patent Abstracts of Japan, vol. 5, No. 156 (C-74) (828), 6th Oct. 1981; & JP-A-56 88 477 (Ube Kosan K.K.), 17-07-1981 (Ueno).
Database WPI, No. 78-85078A/47, Derwent Publications Ltd., London, GB; & JP-A-53 120 762 (Toyobo K.K.), 21-10-1978.

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