Particulate defoaming compositions

Details Particulate defoaming compositions Particulate defoaming compositions

1989-03-27

1990-08-07

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

252321, 252324, 8586, 564160, B01D 1904

Patent

active

049466259

ABSTRACT:
The present invention involves new anti-foam compositions which control foaming in aqueous systems and by nature of their unique cloud point characteristics are insoluble and particulate above their inverse cloud point, and soluble below it. This property makes them non-depositing defoamers. As the defoamed aqueous system cools down these novel products become soluble, preventing insoluble material (pitch) from depositing on process equipment and matter being processed. The compounds of this invention allow for the formulation of mineral oil free defoamers.

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