Efficient diesel fuel antifoams of low silicon content

Details Efficient diesel fuel antifoams of low silicon content Efficient diesel fuel antifoams of low silicon content

1994-07-07

1996-08-06

Howard, Jacqueline V.

Fuel and related compositions

Liquid fuels

Silicon containing

528 29, 556445, 556456, C10L 128

Patent

active

055429602

ABSTRACT:
The present invention is a class of organosilicone terpolymers which may be used to abate the foaming of diesel fuel at silicon levels below 1.2 ppm. Said silicone terpolymers are modified alkyl phenol derivatives and polyethers grafted on a polysiloxane copolymer. Said polysiloxane terpolymer has a structure of MD.sub.x D*.sub.y D**.sub.2 M, where M is O.sub.0.5 Si(CH.sub.3).sub.3, D is a OSi(CH.sub.3).sub.2, D* is OSi(CH.sub.3)R, R is a polyether, D** is OSi(CH.sub.3)R', R' is a phenol derivative x+y+z is 35-350, x/(y+z) is 3 to 6 and y/z is 0.25 to about 9.0.

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Union Carbide Chemicals and Plastics Company, Inc. Product Brochure for SILWET Surfactants, 1992.

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