Ethylene-propylene-diene rubber, elastomer composition and vulca

Details Ethylene-propylene-diene rubber, elastomer composition and vulca Ethylene-propylene-diene rubber, elastomer composition and vulca

1996-08-21

1997-12-16

Jagannathan, Vasu S.

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

Synthetic resins

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

5253318, 5253326, 5253324, 525236, 525237, 525240, 524302, 524742, 528389, C08L 900, C08L 2316

Patent

active

056986394

ABSTRACT:
The invention provides ethylene-propylene-diene rubbers capable of imparting excellent heat resistance, weather resistance and dynamic fatigue resistance to vulcanized rubbers made therefrom. The ethylene-propylene-diene rubbers have sulfur uniformly dispersed therein by mixing a solution of the sulfur with a solution of the ethylene-propylene-diene rubber prior to the addition of vulcanization accelerators or other rubber additives to the rubbers. The vulcanized rubbers are particularly suitable for use as automobile components which require dynamic fatigue resistance such as muffler hangers, belts, rubber vibration insulators, engine mounts, tire treads for pneumatic tires, sidewalls for pneumatic tires and white sidewalls.

REFERENCES:
patent: 3884993 (1975-05-01), Gros

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