Silicone emulsion having improved freeze/thaw resistance

Details Silicone emulsion having improved freeze/thaw resistance Silicone emulsion having improved freeze/thaw resistance

1986-09-02

1987-11-03

Marquis, Melvyn I.

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...

524376, 524762, 524860, 528 18, 528 34, C08K 506

Patent

active

047044225

ABSTRACT:
A method of improving the freeze/thaw stability of an anionically stabilized silicone emulsion useful as a sealant, has been developed. The method comprises the use of nonoxynol-10 in combination with ethylene glycol added to an emulsion comprising 100 parts by weight of an anionically stabilized, hydroxyl endblocked polydiorganosiloxane present as an emulsion of dispersed particles in water, from 0.075 to 0.75 part of weight of dialkyltindicarboxylate, from 0.2 to 5 parts by weight of silane of the formula RSi(OR').sub.3, and from 50 to 200 parts by weight of inert, non-siliceous filler.

REFERENCES:
patent: 3706695 (1972-12-01), Huebner et al.
patent: 4124523 (1978-11-01), Johnson
patent: 4618642 (1986-10-01), Schoenherr

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