Silicone antifoamers

Details Silicone antifoamers Silicone antifoamers

1988-07-15

1990-02-13

Doll, John

Compositions

Preservative agents

Anti-corrosion

556416, 556419, 556420, 556423, 556445, 252321, B01D 1904

Patent

active

049004743

ABSTRACT:
An antifoamer which comprises a polyperfluoroether group-containing organopolysiloxane comprising from 20 to 100 mole % of the polyperfluoroether group-containing organopolysiloxane units of a specific type is described. The content of fluorine atoms in the polyperfluoroether group-containing organopolysiloxane is in the range of from 20 to 70 wt % by which foams of organic solvent systems can be inhibited to a substantial extent.

REFERENCES:
patent: 2917480 (1959-12-01), Bailey et al.
patent: 3398172 (1968-08-01), Damm et al.
patent: 3524003 (1970-09-01), Rausch et al.

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