Rubber compositions and method of treating rubber

Details Rubber compositions and method of treating rubber Rubber compositions and method of treating rubber

1981-11-17

1983-03-08

Michl, Paul R.

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

Synthetic resins

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

524219, 525296, C08F27902

Patent

active

043761895

ABSTRACT:
Rubber compositions comprising diene rubber and N-carbamoyl maleamic acid, N-thiocarbamoyl maleamic acid or derivatives thereof exhibit improved green strength or tack properties. Treatment of diene rubber above 130.degree. C. with the same compounds is shown to be effective in obtaining rubber compositions of improved properties.

REFERENCES:
patent: 2989504 (1961-06-01), Little
patent: 3225100 (1965-12-01), Mullins et al.
patent: 3297713 (1967-01-01), Ladd
patent: 3502542 (1970-03-01), Wenisch
J. Applied Polymer Science, vol. 8, pp. 2281-2298 (1964) "Vulcanization with Maleimides," P. O. Tawney, W. J. Wenisch, S. Van Der Burg, and D. I. Relyea.
Chemical Abstracts, vol. 81, 1974, 4619d--Diene Rubber Compositions with Improved Green Strength.
Chemical Abstracts, vol. 83, 1975, 29568r--Modifying Polyisoprene Rubbers.
Chemical Abstracts, vol. 83, 1975, 61259b--Isoprene Rubber Compositions Having Good Green Strength.
Chemical Abstracts, vol. 85, 1976, 22603f--Improvement of the Green Strength of Polyisoprene.

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