Novel non-depositing defoaming compositions

Details Novel non-depositing defoaming compositions Novel non-depositing defoaming compositions

1987-04-16

1989-10-03

Barr, Josephine

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C09F 500

Patent

active

048714836

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.

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