Sulfur curable silicone rubber

Details Sulfur curable silicone rubber Sulfur curable silicone rubber

1985-09-09

1986-10-14

Marquis, Melvyn I.

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

Synthetic resins

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

528 21, 528 23, 528 27, 528 28, 525106, 525474, C08F 800

Patent

active

046173471

ABSTRACT:
Silicone rubbers can not normally be vulcanized or cured with sulfur. For this reason it has been traditionally difficult to co-cure blends of silicone rubbers and diene rubbers utilizing conventional sulfur curatives. This problem has severely limited the utilization of silicone rubber/diene rubber blends in many applications. However, this difficulty can be easily overcome by utilizing in such blends the sulfur curable silicone rubbers of the present invention. These sulfur curable silicone rubbers are prepared by modifying silicone rubbers which contain pendent vinyl groups with N-chlorothio-sulfonamides.

REFERENCES:
patent: 3915907 (1975-10-01), Hopper
patent: 3970133 (1976-07-01), Hopper

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