Base for defoaming compositions

Details Base for defoaming compositions Base for defoaming compositions

1979-03-09

1980-11-25

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

252321, 427221, 428405, 428406, B01D 1904, B32B 516, B32B 1702

Patent

active

042357420

ABSTRACT:
Flaked or plate-like materials that contain silicate were found to be useful as bases for the manufacture of defoaming compositions. Hollow microspheres with largely siliceous surfaces are crushed to form flaked fragments which are rendered hydrophobic by coating with a silane or silicone. The hydrophobized fragments are then dispersed in a water insoluble organic liquid to complete preparation of the defoamer. Especially useful are hollow microsphere fragments containing sodium silicate and a polysalt.

REFERENCES:
patent: 2886460 (1959-05-01), Alexander et al.
patent: 3030215 (1962-04-01), Veatch et al.
patent: 3076768 (1963-02-01), Boylan
patent: 3365315 (1968-01-01), Beck et al.
patent: 3408306 (1968-10-01), Boylan
patent: 3796777 (1974-03-01), Netting
patent: 4008173 (1977-02-01), Davis

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