FRICTION MODIFIER AND LUBRICANT COMPOSITION

Title:

FRICTION MODIFIER AND LUBRICANT COMPOSITION

Document Type and Number:

WIPO Patent Application WO/2024/116990

Kind Code:

A1

Abstract:

The purpose of the present invention is to provide a friction modifier capable of achieving both a friction reduction effect and storage stability, and a lubricant composition that includes the friction modifier and has a high friction reduction effect and high stability at high temperatures. The present invention relates to a friction modifier comprising a copolymer (A) that includes a monomer (a) represented by general formula (1) and a monomer (b) represented by general formula (2) as essential constituent monomers. The monomer (a) of the monomers constituting the copolymer (A) has an average value of p per mole of the monomer (a) of 1-4. The weight average molecular mass of the copolymer (A) is 5000-38,000, and the copolymer (A) contains 10-60 wt% of the monomer (a) on the basis of the total weight of monomers constituting the copolymer (A) as constituent monomers. In general formula (1), A1 is a polymerizable group; -X1-, -X2-, and -X3- are each a group independently represented by -O- or -NH-, R1 is an alkylene group having 1-4 carbon atoms, R2 is an alkylene group having 2-20 carbon atoms, R3 is a hydrogen atom, p is an integer between 1 and 100, and when p is two or greater, R2 and X3, of which there are a plurality, may each be the same or may be different. In general formula (2), R4 is a hydrogen atom or a methyl group, -X4- is a group represented by -O- or -NH-, and R5 is a straight-chain or branched alkyl group having 5-44 carbon atoms.

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Inventors:

UENO KAZUSHI (JP)
YAMASHITA HIROKI (JP)

Application Number:

PCT/JP2023/041950

Publication Date:

June 06, 2024

Filing Date:

November 22, 2023

Export Citation:

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Assignee:

SANYO CHEMICAL IND LTD (JP)

International Classes:

C10M145/14; C10M149/04; C10M149/06; C10N20/02; C10N20/04; C10N30/00; C10N30/06; C10N30/08; C10N40/00; C10N40/04; C10N40/06; C10N40/08; C10N40/25

Foreign References:

JP2019172984A	2019-10-10
JP2022151618A	2022-10-07
JP2021025007A	2021-02-22

Attorney, Agent or Firm:

WISEPLUS IP FIRM (JP)

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