Invention Grant
- Patent Title: Grease composition for lubricating resins and electric power steering device
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Application No.: US15539474Application Date: 2015-12-28
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Publication No.: US10920163B2Publication Date: 2021-02-16
- Inventor: Iwaki Hirooka , Haruhiko Kiyota , Takeshi Yamamoto , Michita Hokao
- Applicant: KYODO YUSHI CO., LTD. , NSK Ltd.
- Applicant Address: JP Fujisawa; JP Tokyo
- Assignee: KYODO YUSHI CO., LTD.,NSK Ltd.
- Current Assignee: KYODO YUSHI CO., LTD.,NSK Ltd.
- Current Assignee Address: JP Fujisawa; JP Tokyo
- Agency: Buchanan, Ingersoll & Rooney PC
- Priority: JPJP2014-266288 20141226
- International Application: PCT/JP2015/086535 WO 20151228
- International Announcement: WO2016/104812 WO 20160630
- Main IPC: C10M157/00
- IPC: C10M157/00 ; C10M173/02 ; C10M143/04 ; C10M169/06 ; F16H1/16 ; F16H57/12 ; F16H55/56 ; C10M143/00 ; C10M115/08 ; B62D5/04 ; C10M105/04 ; C10M143/12 ; F16H55/22 ; F16H57/04 ; F16H55/24 ; C10N10/02 ; C10N10/12 ; C10N20/04 ; C10N30/06 ; C10N30/00 ; C10N40/04 ; C10N40/06 ; C10N50/10
Abstract:
The invention provides a grease composition for lubricating resins which contains a base oil, a diurea compound represented by formula (I) as a thickener: R1—NHCONH—R2—NHCONH—R3 (I) (wherein R2 represents a bivalent aromatic hydrocarbon group having 6 to 15 carbon atoms, and R1 and R3 each independently represent a straight-chain or branched alkyl group having 8 to 22 carbon atoms), and a chained hydrocarbon polymer having a weight-average molecular weight of 20,000 to 300,000.
Public/Granted literature
- US20170362530A1 GREASE COMPOSITION FOR LUBRICATING RESINS AND ELECTRIC POWER STEERING DEVICE Public/Granted day:2017-12-21
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