公开(公告)号：US20230323240A1

公开(公告)日：2023-10-12

申请号：US18020743

申请日：2021-08-10

申请人： JTEKT CORPORATION ,  ENEOS CORPORATION

发明人： Takeshi TSUDA ,  Yurie HAGINO ,  Kazumi SAKAI ,  Yusuke AYAME ,  Go TATSUMI ,  Kiyomi SAKAMOTO

IPC分类号： C10M105/18 ,  C10M115/08 ,  C10M137/02 ,  C10M169/00 ,  C10M135/20 ,  C10M141/10 ,  C10M135/10

CPC分类号： C10M169/00 ,  C10M105/18 ,  C10M115/08 ,  C10M135/10 ,  C10M135/20 ,  C10M137/02 ,  C10M141/10 ,  C10M2207/0406 ,  C10M2215/1026 ,  C10M2219/044 ,  C10M2219/046 ,  C10M2219/08 ,  C10M2223/049 ,  C10N2030/43

摘要： A grease composition including: a base oil; a thickener; a zinc sulfonate; a polysulfide; an overbased calcium sulfonate; and triphenyl phosphite, in which a proportion of the zinc sulfonate with respect to a total mass of the base oil and the thickener is 0.030 mass% to 0.045 mass% in terms of a zinc content, a proportion of the polysulfide with respect to the total mass of the base oil and the thickener is 0.16 mass% to 0.24 mass% in terms of a sulfur content, a proportion of the overbased calcium sulfonate with respect to the total mass of the base oil and the thickener is 0.010 mass% to 0.015 mass% in terms of a calcium content, and a proportion of the triphenyl phosphite with respect to the total mass of the base oil and the thickener is 0.24 mass% to 0.36 mass%.

公开(公告)号：US20240101825A1

公开(公告)日：2024-03-28

申请号：US17641372

申请日：2020-09-15

申请人： JTEKT CORPORATION

发明人： Yurie HAGINO ,  Takeshi TSUDA

IPC分类号： C08L91/00 ,  C08K3/34 ,  C08K5/21

CPC分类号： C08L91/00 ,  C08K3/346 ,  C08K5/21 ,  C08K2201/001 ,  C08K2201/012

摘要： A grease composition contains a base oil, a thickener, and a conductive additive (A), the base oil is a trimellitic acid ester, the conductive additive (A) is a mixture containing sepiolite and bentonite and is an organically modified additive, and an amount of the conductive additive (A) with respect to a total amount of the base oil, the thickener, and the conductive additive (A) is 3 to 10 mass %.

公开(公告)号：US20200157453A1

公开(公告)日：2020-05-21

申请号：US16599151

申请日：2019-10-11

申请人： JTEKT CORPORATION

发明人： Takeshi TSUDA ,  Yurie HAGINO

IPC分类号： C10M107/02 ,  C10M119/24 ,  C10M125/30 ,  C10M169/02 ,  C10M169/06 ,  C10M159/12 ,  C10M135/18 ,  F16C19/00

摘要： A grease composition includes base oil, a thickener, and an inorganic additive. The base oil is a poly-α-olefin having a base oil kinematic viscosity of 15 to 50 mm2/s at 40° C. The thickener is a diurea expressed by Structural Formula (1). The content of the thickener is 10 to 22 mass % with respect to the total amount of the base oil and the thickener. The inorganic additive is a mixture containing sepiolite and bentonite, and is organically modified. The content of the inorganic additive is 2 to 20 mass % with respect to the total amount of the base oil and the thickener. R1—NHCONH—R2—NHCONH—R3   (1)