Antifoam composition and process with .alpha.-hydroxyamine deriv

Details Antifoam composition and process with .alpha.-hydroxyamine deriv Antifoam composition and process with .alpha.-hydroxyamine deriv

1976-12-20

1978-06-13

Padgett, Benjamin R.

Compositions

Preservative agents

Anti-corrosion

252358, 2604045, B01D 1904

Patent

active

040948129

ABSTRACT:
Antifoam compositions on the basis of an .alpha.-hydroxyamine derivative of the formula ##STR1## wherein A is --NHCO-- or --NHCONH--, R.sub.1 and R.sub.2 are H or alkyl having 1 to 22 carbon atoms and the sum of the carbon atoms in R.sub.1 and R.sub.2 is from 8 to 22, and R.sub.3 is alkyl having 8 to 22 carbon atoms or hydroxyalkyl having 8 to 22 carbon atoms; as well as the process of controlling foam in a foamable liquid by introducing therein an antifoam effective amount of said .alpha.-hydroxyamine derivative. The antifoam .alpha.-hydroxyamine derivatives are effective antifoam agents for most industrial purposes and are suitable for use in oil and latex paints.

REFERENCES:
patent: 3009791 (1961-11-01), Emrick
patent: 3231508 (1966-01-01), Lew
patent: 3387008 (1968-06-01), Cawley
patent: 3957705 (1976-05-01), Gartner et al.

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