Viscosity index improver

Details Viscosity index improver Viscosity index improver

C - Chemistry, Metallurgy

08

F

253/105, 253/125

C08F 255/00 (2006.01) C08F 8/50 (2006.01) C08F 299/00 (2006.01) C08L 51/00 (2006.01) C08L 53/00 (2006.01) C10L 1/16 (2006.01) C10L 1/195 (2006.01) C10L 1/198 (2006.01) C10L 1/236 (2006.01) C10L 1/238 (2006.01) C10L 1/24 (2006.01) C10M 129/34 (2006.01) C10M 133/04 (2006.01) C10M 143/02 (2006.01) C10M 145/02 (2006.01) C10M 149/06 (2006.01) C10M 151/02 (2006.01) C10M 159/12 (2006.01) C08L 23/16 (2006.01)

Patent

CA 2027372

Degraded molecular weight copolymers of ethylene alpha-olefin are provided. The ethylene alpha-olefin copolymers, before degradation, are characterized by having a narrow molecular weight distribution and are comprised of intramolecularly heterogeneous and intermolecularly homogeneous copolymer chains. The degraded copolymers are useful as viscosity index improvers for oils.

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