Anti-foaming compositions

Details Anti-foaming compositions Anti-foaming compositions

1977-03-23

1982-08-17

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

252321, B01D 1904

Patent

active

043448585

ABSTRACT:
The settling problem in anti-foaming compositions for aqueous systems such as latex paint, which are based on dispersions of finely divided hydrophobic silica in nonaqueous media such as hydrocarbon liquids, is overcome by emulsifying the anti-foamer in water with the help of hydrophilic bentonite or similar colloidal clay. Surprisingly, the anti-foaming effect of the dispersed silica is increased by a factor of about 100%.

REFERENCES:
patent: 2551197 (1951-05-01), Barr, Jr.
patent: 2773041 (1956-12-01), Larsen et al.
patent: 2966506 (1960-12-01), Jordan
patent: 3076768 (1963-02-01), Boylan
patent: 3383327 (1968-05-01), Sullivan
patent: 3423340 (1969-01-01), Marshall et al.
patent: 3567574 (1971-03-01), Braitberg et al.
patent: 3697442 (1972-10-01), Lieberman

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