申请人:SANYO CHEMICAL INDUSTRIES, LTD.
公开号:EP1489158A1
公开(公告)日:2004-12-22
The present invention provides
a friction modifier for a lubricating oil which comprises an oil-soluble copolymer (A) containing at least one unit of a monomer (a) represented by the general formula (1) and at least one unit of a monomer (b) represented by the general formula (2), and having a weight average molecular weight of 3,000 or more;
CH2=C(R1)-Q-(Z-A1)m-X (1)
CH2=C(R3)-CO-(O-A2)n-OR4 (2)
a friction modifier composition comprising the above copolymer (A), and at least one species selected from the group consisting of a diluent and other additives; a lubricating oil composition comprising base oil, and the above friction modifier or friction modifier composition. These are excellent in the friction regulation effect, capable of reducing transmission shock, are high in the friction coefficient required for power transmission, and in addition, are excellent in wear resistance.
本发明提供
一种用于润滑油的摩擦改进剂,它包含一种油溶性共聚物 (A),该共聚物含有至少一个由通式 (1) 表示的单体 (a) 单元和至少一个由通式 (2) 表示的单体 (b) 单元,且其重量平均分子量大于等于 3,000;
CH2=C(R1)-Q-(Z-A1)m-X (1)
CH2=C(R3)-CO-(O-A2)n-OR4 (2)
摩擦改进剂组合物,包括上述共聚物(A)和至少一种从稀释剂和其他添加剂组成的组中选出的物质; 润滑油组合物,包括基础油和上述摩擦改进剂或摩擦改进剂组合物。这些产品具有出色的摩擦调节效果,能够减少传动冲击,具有较高的动力传输所需的摩擦系数,此外还具有出色的耐磨性。