Invention Grant
US09045574B2 Viscosity modifier for lubricating oils, additive composition for lubricating oils, and lubricating oil composition
有权
用于润滑油的粘度调节剂，润滑油添加剂组合物和润滑油组合物
- Patent Title: Viscosity modifier for lubricating oils, additive composition for lubricating oils, and lubricating oil composition
- Patent Title (中): 用于润滑油的粘度调节剂，润滑油添加剂组合物和润滑油组合物
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Application No.: US13498324Application Date: 2009-09-28
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Publication No.: US09045574B2Publication Date: 2015-06-02
- Inventor: Satoshi Ikeda , Nozomi Kamiya , Hiroshi Hoya , Jumpei Tanaka , Chor Huang
- Applicant: Satoshi Ikeda , Nozomi Kamiya , Hiroshi Hoya , Jumpei Tanaka , Chor Huang
- Applicant Address: JP Tokyo US OH Wickliffe
- Assignee: MITSUI CHEMICALS, INC.,THE LUBRIZOL CORPORATION
- Current Assignee: MITSUI CHEMICALS, INC.,THE LUBRIZOL CORPORATION
- Current Assignee Address: JP Tokyo US OH Wickliffe
- Agency: Foley & Lardner LLP
- International Application: PCT/US2009/058526 WO 20090928
- International Announcement: WO2011/037585 WO 20110331
- Main IPC: C07C7/20
- IPC: C07C7/20 ; C07C9/00 ; C07C11/00 ; C10M145/26 ; C08F210/16 ; C10M143/00 ; C10M143/04 ; C10M143/06 ; C10M143/08 ; C08F210/06
Abstract:
It is an object to provide a lubricating oil composition having low-temperature properties and fuel efficiency at high temperatures which are superior to those of conventional lubricating oil compositions, and to provide a viscosity modifier for lubricating oils and an additive composition for lubricating oils which are used for obtaining said composition. The viscosity modifier for lubricating oils of the present invention comprises a propylene copolymer (A) which has a density of 875 kg/m3 or less and which comprises 60 mole % or more of structural unit derived from propylene.
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