Silicone foam control agents for hydrocarbon liquids

Details Silicone foam control agents for hydrocarbon liquids Silicone foam control agents for hydrocarbon liquids

1996-01-11

1998-06-16

Dean, Karen A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524773, 524755, 524775, 524792, 524793, 252321, 252 805, 44320, 528 25, C08K 507, C10L 128

Patent

active

057671923

ABSTRACT:
The present invention relates to an organopolysiloxane compound having at least one group having the formula ##STR1## wherein R.sup.3 is a divalent hydrocarbon group having from 1 to 20 carbon atoms, R.sup.5 and R.sup.6 are selected from a hydrogen atom or a group having the formula --(C.sub.n H.sub.2n+1) where n has a value from 1 to 30, R.sup.4 is selected from a hydrogen atom, an alkyl group, or an aryl group, d has a value from 0 to 150, and e has a value from 0 to 150, with the proviso that the value of d+e is greater than zero. The organopolysiloxane compounds of this invention reduce the amount of foam in hydrocarbon fuel, especially in diesel fuels and jet fuels. The organopolysiloxane compounds act as foam control agents which display consistent compatibility and miscibility with additives which are frequently present in hydrocarbon fuels.

REFERENCES:
patent: 3233986 (1966-02-01), Morehouse
patent: 4690688 (1987-09-01), Adams et al.
patent: 4711714 (1987-12-01), Callaghan et al.
patent: 5296625 (1994-03-01), O'Lenick, Jr. et al.
patent: 5397367 (1995-03-01), Fey et al.

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