Patent ID: 9598655
Date: 2017-03-21
CPC Classifications: C10L,C10M,C10N

Claim:
1. A PIB derivative suitable for use as a fuel additive or a lubricant additive prepared from a reactive low molecular weight polyisobutylene composition comprising at least 50 mol percent alpha vinylidene terminated polyisobutylene molecules, the composition having a number average molecular weight of no more than 1000 Daltons, wherein the polyisobutylene composition is prepared with a chain transfer agent having a molecular weight, Mn, lower than said polyisobutylene composition and the polyisobutylene composition is characterized in that the composition exhibits a low molecular weight relative maximum in its molecular weight distribution corresponding to the presence of said chain transfer agent and wherein the derivative is selected from the group consisting of: alkyl hydroxyaromatic compounds; alkyl alkoxy aromatic compounds; polyisobutenylsuccinic anhydrides; polyisobutenylsuccinimides; PIB-amine compounds; sulfurized PIB compounds; and Mannich condensation products of an alkylated hydroxyaromatic compound.