Additives coadjuvating the detaching from the molds of rubbers v

Details Additives coadjuvating the detaching from the molds of rubbers v Additives coadjuvating the detaching from the molds of rubbers v

1989-12-26

1992-03-03

Michl, Paul R.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524520, 525199, C08K 506

Patent

active

050934007

ABSTRACT:
Use of perfluoropolyethers having perfluoroalkyl end groups with a molecular weight ranging from 500 to 1500, in amounts from 0.5 to 3 parts by weight per 100 parts by weight of elastomer and, optimally, in combination wit polytetrafluoroethylene having a molecular weight lower than about 200,000, as additives to the polymerization latex of rubbers vulcanizable by means of peroxides in order to improve the detachability of the vulcanizate from forming molds.

REFERENCES:
patent: 3019206 (1962-01-01), Robb
patent: 3484503 (1969-12-01), Magner et al.
patent: 4789717 (1988-12-01), Gianetti et al.

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