Silicone antifoaming agent

Details Silicone antifoaming agent Silicone antifoaming agent

2007-11-13

2007-11-13

Metzmaier, Daniel S. (Department: 1712)

Colloid systems and wetting agents; subcombinations thereof; pro

Compositions containing an agent for breaking ; processes of...

Continuous liquid phase colloid system and discontinuous gas...

C556S445000, C528S028000, C528S029000

Reexamination Certificate

active

10472452

ABSTRACT:
Silicone antifoaming agent of the present invention demonstrates excellent antifoaming effect with regard to aqueous foaming systems, and is especially suitable for use in conjunction with inks where it significantly suppresses development of cissing during use of ink. The silicone antifoaming agent is characterized by comprising a polyoxyalkylene-modified silicone that has polyoxyalkylene groups expressed by general formula (1) and (2) given below and contains 10 to 200 diorganosiloxane units in one molecule, said polyoxyalkylene-modified silicone satisfying the following conditions: 3≦E≦90 and 0.01≦E/(E+P)≦0.45, wherein P is the total number of oxypropylene units (—C3H6O—) and E is the total number of oxyethylene units (—C2H4O—) contained in one molecule.

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English language Abstract for JP 05 317607A; filed Dec. 3, 1993: Database WPI, Section Ch, Week 199402; Derwent Publication XP-002215688.

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