Antistatic fuel additives
AssigneeEcolab USA Inc.
InventorsXiaojin Harry Li, Ashish Dhawan, Nestor Soriano, John Matthew Chudomel
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Abstract
An anti-static fuel additive composition and method for using the composition to reduce or prevent buildup of electrostatic charge is described. The anti-static fuel additive composition comprises a polysulfone and a copolymer derived from reaction of an alkanolamine and a hydrocarbyl-substituted 4-membered to 7-memebered ring anhydride; for example, a hydrocarbyl-substituted succinic anhydride, a hydrocarbyl-substituted maleic anhydride, a hydrocarbyl-substituted phthalic anhydride, or a combination thereof.
Claims18
An anti-static fuel additive composition comprising a polysulfone and a copolymer derived from reaction of an alkanolamine and a hydrocarbyl-substituted 4-membered to 7-membered ring anhydride, wherein the alkanolamine has a structure corresponding to Formula 1A, Formula 2, or Formula 3
- wherein
- R1 and R2 are independently CH2 or CHR10, wherein R10 is alkyl or aryl;
- R3 is independently (C(H)(R30))xOH;
- R30 is independently hydrogen, alkyl, or aryl;
- m is independently an integer from 1 to 10;
- p is independently an integer from 1 to 10;
- x is independently an integer from 1 to 10;
- and
- o is an integer from 0 to 100.
Dependencies are inferred from the claim text.