公开(公告)号：US20210130724A1

公开(公告)日：2021-05-06

申请号：US16632706

申请日：2018-11-12

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Kenji GOTO ,  Hitoshi ROKKAKU ,  Yuta YAMAMOTO

IPC: C10M101/02 ,  C08L21/00 ,  C10G53/04 ,  C08L101/00 ,  C08L91/00

Abstract: Provided are a mineral base oil satisfying the following requirements (I) to (IV), which is excellent in safety and environmental aspects and has good compatibility with resin; a molded article formed of a resin composition containing the mineral base oil and a resin; and a method for producing the mineral base oil. Requirement (I): The flash point is 200° C. or higher. Requirement (II): The pour point is 0° C. or lower. Requirement (III); The aromatic content (% CA) is 2.6 or more. Requirement (IV): The toluene content, as measured according to JIS A1965:2015, is more than 0 μg/m3 and less than 500 μg/m3.

公开(公告)号：US20190024004A1

公开(公告)日：2019-01-24

申请号：US16078415

申请日：2017-02-03

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Norihiro KURODA ,  Hisao ANZAI ,  Kenji GOTO

IPC: C10M101/02 ,  C10M177/00

Abstract: Provided is a mineral base oil having a kinematic viscosity at 40° C. of 4.0 mm2/s or more and less than 6.0 mm2/s, a kinematic viscosity at 100° C. of 1.0 mm2/s or more and less than 2.0 mm2/s, and a flash point of 140° C. or higher. A lubricating oil composition containing the mineral base oil has a high flash point while having a low viscosity and thus having excellent fuel-saving performance when used as a driving system oil and the like.

公开(公告)号：US20240343989A1

公开(公告)日：2024-10-17

申请号：US18294224

申请日：2022-08-29

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Kenji GOTO ,  Yusuke NAKANISHI ,  Keizo MURATA

IPC: C10M105/76 ,  B01J3/06 ,  C10N20/02 ,  C10N40/00

CPC classification number: C10M105/76 ,  B01J3/06 ,  C10N2020/02 ,  C10N2040/44

Abstract: A pressure medium containing at least one Group-14 element-containing organic compound (A) selected from the group consisting of a compound (A1) represented by the general formula (a1) and a compound (A2) represented by the general formula (a2):




where each of Ra11, Ra12, Ra13, and Ra14 independently represents an alkyl group having 3 to 6 carbon atoms, and Za1 represents a carbon atom or a silicon atom:




where each of Ra21, Ra22, Ra23, and Ra24 independently represents an alkyl group having 3 to 6 carbon atoms, and Za2 represents a silicon atom, a germanium atom, a tin atom, or a lead atom.

公开(公告)号：US20230407202A1

公开(公告)日：2023-12-21

申请号：US18251760

申请日：2021-12-23

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Tokue SATO ,  Kenji GOTO

IPC: C10M169/04 ,  C10M129/74 ,  C10M133/40 ,  C10M129/40 ,  C10M133/06 ,  C10M129/10 ,  C10M137/04 ,  C10M141/10 ,  C10M155/02 ,  C10M161/00

CPC classification number: C10M169/044 ,  C10M129/74 ,  C10M133/40 ,  C10M129/40 ,  C10M133/06 ,  C10M129/10 ,  C10M137/04 ,  C10M141/10 ,  C10M155/02 ,  C10M161/00 ,  C10M2203/003 ,  C10M2207/283 ,  C10M2215/30 ,  C10M2207/126 ,  C10M2215/26 ,  C10M2207/023 ,  C10M2223/041 ,  C10M2229/02 ,  C10N2030/12

Abstract: A lubricating oil composition contains a base oil and a rust inhibitor, in which the base oil has a gas chromatogram measured by gas chromatography satisfying the particular condition (α), and the rust inhibitor is at least one selected from a first rust inhibitor, a second rust inhibitor, a third rust inhibitor, and a fourth rust inhibitor, and satisfies the particular condition (β).