公开(公告)号：WO2015148889A1

公开(公告)日：2015-10-01

申请号：PCT/US2015/022926

申请日：2015-03-27

Applicant: MITSUI CHEMICALS, INC. ,  THE LUBRIZOL CORPORATION

Inventor： YAMAMOTO, Atsushi ,  SUZUKI, Terufumi ,  IDE, Kenta ,  HUANG, Chor

IPC: C08F210/16 ,  C10M107/06 ,  C10M107/08

CPC classification number: C10M143/06 ,  C08F210/16 ,  C10M143/08 ,  C10M145/14 ,  C10M2203/1025 ,  C10M2205/022 ,  C10M2205/026 ,  C10M2205/0285 ,  C10M2207/026 ,  C10M2209/084 ,  C10M2215/064 ,  C10M2223/045 ,  C10N2210/01 ,  C10N2210/02 ,  C10N2220/021 ,  C10N2220/022 ,  C10N2220/032 ,  C10N2230/02 ,  C10N2230/54 ,  C10N2230/68 ,  C10N2240/10 ,  C08F210/08 ,  C08F2500/03 ,  C08F2500/17 ,  C08F2500/08 ,  C08F210/06 ,  C10M2205/028

Abstract: Provided are a viscosity modifier for lubricating oils for obtaining an additive composition for lubricating oils having excellent fluidity in a wide temperature range from low temperature to high temperature; and said additive composition for lubricating oils. Further provided are a viscosity modifier for lubricating oils for obtaining a lubricating oil composition capable of reducing viscosity in good balance in a wide temperature range from low temperature to high temperature; and said lubricating oil composition. The viscosity modifier for lubricating oils includes an ethylene α-olefin copolymer (A) which includes 30 to 50 mole% of structural units derived from at least one α-olefin selected from α-olefins having 4 and 5 carbon atoms and 50 to 70 mole% of structural units derived from ethylene (with the proviso that the total of all structural units of said copolymer is 100 mole%) and which satisfies specific requirements (a), (b), and (c).

Abstract translation: 提供一种润滑油用粘度调节剂，用于获得在低温至高温的宽温度范围内具有优异流动性的润滑油添加剂组合物; 和所述润滑油添加剂组合物。 另外提供了一种润滑油的粘度调节剂，用于获得能够在从低温到高温的宽温度范围内良好平衡地降低粘度的润滑油组合物; 和所述润滑油组合物。 用于润滑油的粘度调节剂包括乙烯α-烯烃共聚物（A），其包含30-50摩尔％的源自至少一种选自具有4和5个碳原子的α-烯烃和50-70摩尔的α-烯烃的结构单元 来自乙烯的结构单元的％（前提是所述共聚物的所有结构单元的总和为100摩尔％），并且满足特定要求（a），（b）和（c）。