MULTIFUNCTIONAL GRAFT COPOLYMER-DISPERSANT Russian patent published in 2011 - IPC C08F285/00 C08F255/04 C08F8/32 C10M107/24

Abstract RU 2425063 C2

FIELD: chemistry.

SUBSTANCE: described is a multifunctional graft copolymer-dispersant containing at least two different monomers. Each monomer is directly grafted to the polymer backbone chain having grafted sections. One monomer contains at least one ethylenically unsaturated aliphatic or ethylenically unsaturated aromatic monomer. The monomer has 2-50 carbon atoms and contains one element selected from an oxygen atom, nitrogen atom or combinations thereof. The other monomer contains at least one acylating agent, having olefinic unsaturation in at least one point and at least one amine which reacts with said acylating agent. Described also is a method of producing the multifunctional graft copolymer-dispersant, lubrication oil and a method of improving soot processing.

EFFECT: obtaining a graft copolymer, having many characteristic properties, improved soot processing and regulation lubrication oil deposits, and regulation of increase in viscosity.

41 cl, 2 tbl, 5 ex

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RU 2 425 063 C2

Authors

Goldblatt Irvin L.

Chehn' Sin-Dzer

Sauer Richard P.

Dates

2011-07-27—Published

2006-04-27—Filed