Nitrogen containing dispersant-viscosity improvers

Details Nitrogen containing dispersant-viscosity improvers Nitrogen containing dispersant-viscosity improvers

C - Chemistry, Metallurgy

10

M

C10M 149/12 (2006.01) C10L 1/14 (2006.01) C10L 1/22 (2006.01) C10L 1/238 (2006.01) C10L 1/24 (2006.01) C10M 133/58 (2006.01) C10M 143/00 (2006.01) C10M 151/00 (2006.01) C10L 1/16 (2006.01) C10L 1/18 (2006.01) C10L 1/30 (2006.01)

Patent

CA 2254614

A composition comprising a hydrocarbon polymer having M n ranging from 20,000 to about 500,000, when the polymer is not a star polymer, and up to aboutGPC peak molecular weight of 4,000,000 when the polymer is a star polymer havingattached thereto pendant groups Aa and Bb wherein each A is independently selected from members of the group consisting of: groups of the formula Image wherein R3 is H or hydrocarbyl, R4 is a divalent hydrocarbylene group, n = 0 or 1, and each of R9 and R10 is independently H, alkoxyhydrocarbyl, hydroxyhydrocarbyl, hydrocarbyl, aminohydrocarbyl, N-alkoxyalkyl- or hydroxyalkyl-substituted aminohydrocarbyl, or a group of the formula ~Y~c~R11~M, wherein each Y is independently a group of the formula r --R11-o-, Image each R11 is a divalent hydrocarbyl group, R12 is as defined above for R9 and R10 and M is H, hydrocarbyl, amino, an amide group, an amide-containing group, an acylamino group, an imide group, or an imide-containing group, and c is 0 or a number ranging from 1 to about 100, or one of R9 and R10 taken together with theadjacent N constitute a N-N group; and each B is independently selected from members of the group of formula: Image wherein each X is independently O, S, or NRb, each Rb is independently H, NH2, hydrocarbyl, hydroxy-hydrocarbyl or aminohydrocarbyl, and each Z is independently a group of the formula Image wherein each of R3, R4, and n is as defined hereinabove; Ra is an ethylene group, a propylene group, which groups optionally have hydrocarbyl or hydroxyhydrocarbyl substituents, or Image wherein J is H, SH, NH2, or OH, and tautomers thereof; a is 0 or a number ranging from 1 to about 50, and b is a number ranging from 1 to about 30.

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