Polysiloxane-polyoxyethylene-polyoxypropylene triblock copolymer

Details Polysiloxane-polyoxyethylene-polyoxypropylene triblock copolymer Polysiloxane-polyoxyethylene-polyoxypropylene triblock copolymer

1996-11-20

1998-09-08

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

252321, 528 29, 524837, 525476, 525403, 10628713, C08G 7704, C08G 7742, B01D 1904

Patent

active

058040994

ABSTRACT:
Polysiloxane-polyoxyethylene-polyoxypropylene triblock copolymers having the general formula: ##STR1## as well as compounds for the defoaming of aqueous dispersion paints that are disclosed contain the copolymers as effective defoaming components.

REFERENCES:
patent: 3402192 (1968-09-01), Haluska
patent: 3746653 (1973-07-01), Churchfield
patent: 3763021 (1973-10-01), Householder
patent: 3784479 (1974-01-01), Keil
patent: 3865544 (1975-02-01), Keil
patent: 4042528 (1977-08-01), Abe
Griffin, W.C.; Calculation of HLB Values of Non-Ionic Surfactants, Atlas Powder Company, Wilmington, Del., Journal of the Society of Cosmetic Chemists, 249-256 (May 1954).
Graffin, W.C.; Classification of Surface-Active Agents by "HLB", Atlas Powder Company, Wilmington, Del., Journal of the Society of Cosmetic Chemists, 1, 311-326 (1950) Month Unavailable.

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