FRICTION REGULATING AGENT FOR LUBRICATING OIL AND LUBRICATING OIL COMPOSITION

Japanese Patent JP3813595

B2

PROBLEM TO BE SOLVED: To provide a friction regulating agent for lubricating oil exhibiting lowered shock in gear change and having improved torque transmission function.
SOLUTION: The friction regulating agent for a lubricating oil is composed of an oil-soluble copolymer having a weight-average molecular weight of ≥3,000 and containing a unit of at least one monomer (a) expressed by general formula (1), CH2=C(R1)-Q-(Z-A1)m-X and a unit of at least one monomer (b) expressed by general formula (2), CH2=C(R3)-CO-(O-A2)n-OR4 (X is PH2, NH2 or (O)a-P(=O)b(OR2)2; one of (a) and (b) is 1 and the other is 0 or 1; R2 is H, an alkyl or the like; R1 and R3 are each H or methyl; Z is O or NH; A1 and A2 are each an alkylene; (m) is an integer of 0-50; Q is CO or a hydrocarbon group; (n) is an integer of 0-30; and R4 is an alkyl or the like).

Takeshi Yuki
Minoru Nishida

JP2003082283A

August 23, 2006

March 25, 2003

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SANYO CHEMICAL INDUSTRIES,LTD.

C10M149/04; C10M153/02; C08F8/12; C08F220/10; C10M101/02; C10M105/04; C10M105/36; C10M105/38; C10M149/02; C10M169/04; C10M177/00; C08F220/12; C08F220/26; C08F230/02; C10M105/02; C10M105/32; C10N20/02; C10N20/04; C10N30/00; C10N30/06; C10N40/04; C10N60/00; C10N70/00; (IPC1-7): C10M149/04; C08F8/12; C08F220/10; C10M101/02; C10M105/04; C10M105/36; C10M105/38; C10M149/02; C10M153/02; C10M169/04; C10M177/00; //C10N20:02; C10N20:04; C10N30:06; C10N40:04; C10N60:00; C10N70:00

JP389576B1
JP34447B1
JP711279A
JP62265305A
JP2001288487A
JP200212883A
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