Invention Grant
- Patent Title: Transmission oil composition for automobile
- Patent Title (中): 汽车变速箱油组成
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Application No.: US10479299Application Date: 2002-05-28
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Publication No.: US07307048B2Publication Date: 2007-12-11
- Inventor: Takumaru Sagawa , Takafumi Ueno , Hisayuki Wada , Tooru Aoki
- Applicant: Takumaru Sagawa , Takafumi Ueno , Hisayuki Wada , Tooru Aoki
- Applicant Address: JP Yokohama-Shi, Kanagawa JP Tokyo
- Assignee: Nissan Motor Co., Ltd.,Nippon Oil Corporation
- Current Assignee: Nissan Motor Co., Ltd.,Nippon Oil Corporation
- Current Assignee Address: JP Yokohama-Shi, Kanagawa JP Tokyo
- Agency: Darby & Darby P.C.
- Priority: JP2001-158678 20010528
- International Application: PCT/JP02/05139 WO 20020528
- International Announcement: WO02/097017 WO 20021205
- Main IPC: C10M137/10
- IPC: C10M137/10 ; C10M137/04
Abstract:
A transmission oil composition for an automobile characterized in that it contains a base oil selected from the group consisting of a mineral oil, a synthetic oil and mixtures thereof; and a phosphate compound selected from the group consisting of (A) a zinc dithiophosphate having a hydrocarbon group, (B) a triaryl phosphate (C) a triaryl thiophosphate, and mixtures thereof at 0.1 to 15.0% by mass with respect to the total composition; wherein the composition has a volume resistivity of 1×107 ohm·m or more at 80° C.
Public/Granted literature
- US20040209786A1 Transmission oil composition for automobile Public/Granted day:2004-10-21
Information query
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