发明名称 |
VISCOSITY MODIFIER FOR LUBRICATING OILS, ADDITIVE COMPOSITION FOR LUBRICATING OILS, AND LUBRICATING OIL COMPOSITION |
摘要 |
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). |
申请公布号 |
EP3122790(A1) |
申请公布日期 |
2017.02.01 |
申请号 |
EP20150715104 |
申请日期 |
2015.03.27 |
申请人 |
Mitsui Chemicals, Inc.;The Lubrizol Corporation |
发明人 |
YAMAMOTO, Atsushi;SUZUKI, Terufumi;IDE, Kenta;HUANG, Chor |
分类号 |
C08F210/16;C10M107/06;C10M107/08 |
主分类号 |
C08F210/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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