Siloxanes, their synthesis and use as deaerating agents for cura

Details Siloxanes, their synthesis and use as deaerating agents for cura Siloxanes, their synthesis and use as deaerating agents for cura

1987-07-14

1989-02-14

Jacobs, Lewis T.

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

Synthetic resins

From silicon reactant having at least one...

556437, 556446, 252321, 252356, C08G 7704

Patent

active

048047376

ABSTRACT:
Alkoxysiloxanes of the general formula ##STR1## are disclosed wherein R.sup.1 is methyl or ##STR2## and/or ##STR3## the sum of the units a being 0 to 100, the sum of the units b being 0 to 15, with the proviso that the ratio of methyl to alkoxy groups in R.sup.1 is less than 50:1, and that b.gtoreq.1 when a=0 and a.gtoreq.5 when b=0.
The compounds may be synthesized by known methods from halogen- or alkoxysiloxanes, the alkoxy group of which has 1 to 4 carbon atoms. The compounds are effective deaerating agents for curable resins and plastisols. The invention is also directed to compositions containing the novel deaerating compounds as well as to methods for deaerating coating systems.

REFERENCES:
patent: 3398104 (1968-08-01), Haluska
patent: 3548025 (1970-12-01), Koerner
patent: 3595885 (1971-07-01), Rossmy et al.
patent: 3595894 (1971-07-01), Brown et al.
patent: 4384100 (1983-05-01), Takamizawa et al.
patent: 4408031 (1983-10-01), Holtschmidt et al.

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