公开(公告)号：US20220073837A1

公开(公告)日：2022-03-10

申请号：US17423252

申请日：2020-01-31

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Kouji TAKANE ,  Go WATANABE ,  Akihiro SHISHIKURA ,  Jun YAMASHITA

IPC: C10M169/00 ,  C10M107/02 ,  C10M101/02 ,  C10M115/08 ,  C10M133/12 ,  C10M129/74 ,  C10M141/06 ,  F16C33/10

Abstract: The present invention relates to a grease composition which can impart excellent durability to a bearing used under a high-speed rotation condition with a DN value of 100,000 or more, wherein the grease composition contains a base oil (A) and a urea-based thickener (B), and particles containing the urea-based thickener (B) in the grease composition satisfy requirement (I) that the particles have an arithmetic mean particle diameter of 2.0 μm or less on an area basis when measured by a laser diffraction scattering method. The grease composition is used for a bearing used under a high-speed rotation condition with a DN value of 100,000 or more.

公开(公告)号：US20240174942A1

公开(公告)日：2024-05-30

申请号：US18550984

申请日：2022-03-31

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Keisuke INDA ,  Go WATANABE ,  Kouji TAKANE

IPC: C10M169/02 ,  C10M115/08 ,  C10M143/04 ,  C10M169/06 ,  C10M171/06 ,  C10N20/02 ,  C10N20/04 ,  C10N40/04

CPC classification number: C10M169/02 ,  C10M115/08 ,  C10M143/04 ,  C10M169/06 ,  C10M171/06 ,  C10M2205/024 ,  C10M2215/28 ,  C10M2290/10 ,  C10N2020/02 ,  C10N2020/04 ,  C10N2040/04

Abstract: A grease composition, containing a base oil (A), a urea-based thickener (B), and a polymer compound (C). The particles that make up the urea-based thickener (B) in the grease composition satisfy the following requirement (I): the particles have an arithmetic average particle diameter on an area basis as measured by a laser diffraction/scattering method of 2.0 μm or less, and the polymer compound (C) has a number average molecular weight (Mn) of 30,000 or more and a molecular weight distribution (Mw/Mn) of 2.20 or less.

公开(公告)号：US20170253826A1

公开(公告)日：2017-09-07

申请号：US15313385

申请日：2015-03-31

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Yoshiyuki SUETSUGU ,  Kouji TAKANE

IPC: C10M115/08 ,  C10M177/00

CPC classification number: C10M115/08 ,  C10M177/00 ,  C10M2203/1006 ,  C10M2203/1025 ,  C10M2205/0285 ,  C10M2207/026 ,  C10M2215/06 ,  C10M2215/1026 ,  C10M2223/041 ,  C10N2220/00 ,  C10N2220/022 ,  C10N2220/027 ,  C10N2230/00 ,  C10N2230/76 ,  C10N2240/02 ,  C10N2250/10 ,  C10N2270/00 ,  C10M2219/068 ,  C10N2210/06 ,  C10M2223/045 ,  C10N2210/02

Abstract: A urea grease of the invention is prepared by applying shear at a shear rate of 102 s−1 or more to a mixture solution of an amine mixture containing an alicyclic monoamine and a chain aliphatic monoamine, and a diisocyanate compound to cause a reaction in the mixture, in which the urea grease has Peak High32-64s of 1.5 or less and Level High32-64s of 10 or less according to an FAG method.

公开(公告)号：US20160237374A1

公开(公告)日：2016-08-18

申请号：US15022129

申请日：2014-09-17

Applicant: IDEMITSU KOSAN CO. LTD.

Inventor： Kouji TAKANE ,  Tsukasa YAMAGISHI

IPC: C10M169/04 ,  C10M125/24 ,  C10M125/10 ,  C10M107/38

Abstract: A grease of the invention contains a fluorine synthetic oil as a base oil and an inorganic acid salt that is at least one selected from phosphate, tungstate, sulfate and sulfite. The grease of the invention is suitably usable in a bearing, a gear and the like because of an excellent wear resistance and a low environmental burden.

Abstract translation: 本发明的润滑脂含有作为基础油的氟合成油和选自磷酸盐，钨酸盐，硫酸盐和亚硫酸盐中的至少一种的无机酸盐。 由于具有优异的耐磨性和低的环境负荷，本发明的润滑脂适用于轴承，齿轮等。

公开(公告)号：US20240174943A1

公开(公告)日：2024-05-30

申请号：US18552377

申请日：2022-03-31

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Go WATANABE ,  Keisuke INDA ,  Kouji TAKANE

IPC: C10M169/06 ,  C10N20/02 ,  C10N20/06 ,  C10N30/06 ,  C10N50/10

CPC classification number: C10M169/06 ,  C10M2215/30 ,  C10M2217/0456 ,  C10N2020/02 ,  C10N2020/06 ,  C10N2030/06 ,  C10N2050/10

Abstract: A grease composition, containing a base oil (A), a urea-based thickener (B), and melamine cyanurate (C). Particles containing the urea-based thickener (B) in the grease composition satisfy the following requirement (I): the particles have an area-based arithmetic average particle diameter of 2.0 μm or less, as measured by a laser diffraction/scattering method.

公开(公告)号：US20160002558A1

公开(公告)日：2016-01-07

申请号：US14769937

申请日：2014-03-12

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Kouji TAKANE ,  Yukitoshi FUJINAMI ,  Hiroki SEKIGUCHI ,  Yusuke NAKANISHI ,  Yoshiyuki SUETSUGU

IPC: C10M115/08

CPC classification number: C10M115/08 ,  C10M169/02 ,  C10M2205/0285 ,  C10M2207/2805 ,  C10M2207/2845 ,  C10M2207/2855 ,  C10M2215/1026 ,  C10N2230/06 ,  C10N2230/08 ,  C10N2230/76 ,  C10N2240/02 ,  C10N2250/10

Abstract: 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.

Abstract translation: 轴承润滑脂组合物含有（A）增稠剂和（B）基础油，其中（A）增稠剂是由下式（I）表示的尿素增稠剂，并且在观察轴承润滑脂中的透射图像 在尿素增稠剂中透射图像面积超过40μm2的聚集部分的透射图像面积比相对于总观察面积为15％以下。 R1NHCONHR2NHCONHR3（Ⅰ）式中，R1，R3各自独立地表示：（a1）碳原子数为6〜22的一价链状烃基; 具有6〜12个碳原子的（a2）一价脂环族烃基; R2表示碳原子数6〜15的（a4）2价芳香族烃基。