Title:
ANTIFROTHING AGENT COMPOSITION CONTAINING ORGANOPOLYSILOXANE AND ITS MANUFACTURE
Document Type and Number:
Japanese Patent JPS56158106
Kind Code:
A
Abstract:
An anti-foam composition comprising (a) a dispersion of a silicon dioxide filler in an organopolysiloxane, (b) an emulsifier or dispersant, and (c) at least one water soluble compound selected from the group consisting of (i) a divalent aliphatic alcohol containing 4 to 10 carbon atoms, (ii) a trivalent aliphatic alcohol containing 2 to 10 carbon atoms, and R1O(CH2CH2O)nR2, (iii) R1O(CH2CH2CH2O)nR2 and in which R1 and R2 each independently is hydrogen, C1-8-alkyl or C1-8-alkyl-CO-, and n,m,p and r are so chosen that the molecular weight of (c) does not exceed 499. Advantageously, based upon (a) plus (b) plus (c) the composition by weight comprises about 25 to 35% (a), about 8 to 12% (b) and about 53 to 67% (c), the composition additionally containing water in up to about 45% by weight of the entire composition. The composition is more readily water-dispersible and of better anti-foaming action than heretofore.
Inventors:
YOAHIMU MAASU
HERUMUUTO SHIYUTAINBERUGAA
HANSUUHAINRITSUHI MORETSUTO
HERUMUUTO SHIYUTAINBERUGAA
HANSUUHAINRITSUHI MORETSUTO
Application Number:
JP5189481A
Publication Date:
December 05, 1981
Filing Date:
April 08, 1981
Export Citation:
Assignee:
BAYER AG
International Classes:
B01D19/04; (IPC1-7): B01D19/04