Tall oil fatty acid mixture in rubber

Details Tall oil fatty acid mixture in rubber Tall oil fatty acid mixture in rubber

1988-10-06

1989-09-26

Henderson, Christopher

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

Synthetic resins

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

5253293, 5253326, C08L 900, C08L 700, C08C 1920

Patent

active

048701351

ABSTRACT:
There is disclosed a method for enhancing the cure of a sulfur vulcanizable elastomer which comprises adding to the vulcanizable elastomer a mixture of tall oil fatty acids comprising at least (a) from about 28% to about 55% by weight of oleic acid, (b) from about 25% to about 40% by weight of linoleic acid, (c) from about 4% to about 20% conjugated linoleic acid and (d) from about 0% to about 8% rosin acids. Use of a mixture of tall oil acids as a cure activator significantly lowers the cost of producing the vulcanizate while concomitantly improving the adhesion and dynamic properties of the elastomer.

REFERENCES:
patent: 3325429 (1967-06-01), Harris
patent: 4154911 (1979-05-01), Bak
patent: 4244413 (1981-01-01), Takahashi

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