Patent ID: 7067599
Filing Date: 2006-06-27
Classification: C08F,C10L

Abstract:
1. A middle distillate fuel oil composition comprising fuel oil boiling in the range of from 100° C. to 500° C. and a copolymer comprising: (A) either: (B) an ethylenically unsaturated compound selected from the group consisting of acrylic acid, methylacrylic acid, fumaric acid, maleic acid and maleic anhydride; wherein the olefin or mixture of olefins carry hydrocarbyl substituents containing a continuous chain of carbon atoms, and optionally oxygen and/or nitrogen and/or sulfur atoms; the average length of the chains being at least 22 atoms; and wherein the copolymer is derivatized with an amine selected from the group consisting of n-octyl amine, n-hexyl amine, n-butyl amine and n-propyl amine, said derivatization being carried out after preparation of the copolymer.