LUBRICANT CONTAINING OLEFIN COPOLYMER AND ACRYLATE COPOLYMER

Title:

LUBRICANT CONTAINING OLEFIN COPOLYMER AND ACRYLATE COPOLYMER

Document Type and Number:

Japanese Patent JP2009120853

Kind Code:

A

Abstract:

To provide a lubricating oil composition containing polyolefin and polyacrylate, which is excellent in performance.

The lubricating oil composition includes an oil having lubricating viscosity and a total of from about 1 to about 50 wt.% of copolymers comprising (A) at least one ethylene-aliphatic olefin copolymer wherein the aliphatic olefins contain from 2 to about 24 carbon atoms, the copolymer (A) having Mn ranging from about 600 to about 5,000, and (B) at least one copolymer comprising units derived from alkyl acrylate ester monomers containing from 2 to about 25 carbon atoms in the ester group, and optionally, from about 0.1 to about 20 wt.% of at least one member of the group consisting of vinyl aromatic monomers and nitrogen-containing vinyl monomers.

Inventors:

VINCI JAMES N
TIPTON CRAIG D
CAIN ROBERT W

Application Number:

JP2009055758A

Publication Date:

June 04, 2009

Filing Date:

March 09, 2009

Export Citation:

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Assignee:

LUBRIZOL CORP

International Classes:

C10M169/04; C08L23/08; C10M101/02; C10M137/10; C10M143/00; C10M143/04; C10M143/06; C10M143/08; C10M143/10; C10M145/14; C10M149/02; C10M149/04; C10M149/06; C10M149/10; C10M157/00; C10M157/04; C10M167/00; C10M177/00; C08L33/08; C10N20/00; C10N20/02; C10N20/04; C10N30/00; C10N30/02; C10N30/08; C10N40/04; C10N40/08; C10N40/20; C10N70/00

Attorney, Agent or Firm:

Hidesaku Yamamoto
Takaaki Yasumura
Natsuki Morishita

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