发明申请
- 专利标题： GREASE COMPOSITION FOR BEARING
- 专利标题（中）： 用于轴承的润滑脂组合物
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申请号： US14769937申请日： 2014-03-12
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公开(公告)号： US20160002558A1公开(公告)日： 2016-01-07
- 发明人: Kouji TAKANE , Yukitoshi FUJINAMI , Hiroki SEKIGUCHI , Yusuke NAKANISHI , Yoshiyuki SUETSUGU
- 申请人： IDEMITSU KOSAN CO., LTD.
- 申请人地址： JP Chiyoda-ku, Tokyo
- 专利权人： IDEMITSU KOSAN CO., LTD.
- 当前专利权人： IDEMITSU KOSAN CO., LTD.
- 当前专利权人地址： JP Chiyoda-ku, Tokyo
- 优先权： JP2013-051925 20130314
- 国际申请： PCT/JP2014/056565 WO 20140312
- 主分类号： C10M115/08
- IPC分类号： C10M115/08
摘要：
A bearing grease composition contains a (A) thickener and a (B) base oil, in which the (A) thickener is a urea thickener represented by a formula (I) below, and, in observation of a transmission image in the bearing grease composition, a transmission-image-area ratio of an aggregation part having a transmission image area exceeding 40 μm2 in the urea thickener is 15% or less relative to a total observation area. R1NHCONHR2NHCONHR3 (I) In the formula, R1 and R3 each independently represent: an (a1) monovalent chain hydrocarbon group having 6 to 22 carbon atoms; an (a2) monovalent alicyclic hydrocarbon group having 6 to 12 carbon atoms; and the like, and R2 represents an (a4) divalent aromatic hydrocarbon group having 6 to 15 carbon atoms.
公开/授权文献
- US10240103B2 Grease composition for bearing 公开/授权日：2019-03-26