Process for minimizing residual free hydrazine in polymer latice

Details Process for minimizing residual free hydrazine in polymer latice Process for minimizing residual free hydrazine in polymer latice

1991-03-04

1992-12-15

Michl, Paul R.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528487, 528492, 528493, 528494, C08F 610, C08F 616

Patent

active

051718332

ABSTRACT:
This invention relates to a process for minimizing or reducing the amount of residual free hydrazine in polymer latices. The process is particularly useful in the manufacture of hydrogenated nitrile rubber which is resistant to oxidative degradation at high temperatures, as well as resistant to corrosive environments such as acid environments. Nitrile rubbers are useful in the manufacture of fan belts, seals, gaskets, and hoses in increasingly small and hot-running car engines.

REFERENCES:
patent: 4452950 (1984-06-01), Wideman
patent: 4532318 (1985-07-01), Abubakari et al.
patent: 4954614 (1990-09-01), Schiessl et al.
patent: 5068313 (1991-11-01), Schiessl

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