公开(公告)号：US20230357663A1

公开(公告)日：2023-11-09

申请号：US18042787

申请日：2021-07-09

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Tomoaki OKANO ,  Tomohiko KITAMURA ,  Hideto KAMIMURA

IPC: C10M173/00 ,  C10M107/34 ,  C10M133/08 ,  C10M133/10 ,  C10M129/40 ,  C10M135/22 ,  C10M141/08 ,  C10M145/12 ,  C10M145/36 ,  C10M161/00 ,  C10M169/04

CPC classification number: C10M173/00 ,  C10M107/34 ,  C10M133/08 ,  C10M133/10 ,  C10M129/40 ,  C10M135/22 ,  C10M141/08 ,  C10M145/12 ,  C10M145/36 ,  C10M161/00 ,  C10M169/044 ,  C10M2201/02 ,  C10M2209/1033 ,  C10M2215/26 ,  C10M2207/126 ,  C10M2219/082 ,  C10M2209/082 ,  C10M2209/1085 ,  C10N2040/22

Abstract: Provided is a water-soluble metalworking oil comprising a base oil (A) comprising oil-soluble polyalkylene glycol (A1), wherein a total content of water-soluble polyalkylene glycol and methoxypolyethylene glycol is less than 60% by mass based on the total amount excluding water.

公开(公告)号：US20240026242A1

公开(公告)日：2024-01-25

申请号：US18256375

申请日：2021-12-28

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Yukio YOSHIDA ,  Shota KATO ,  Hideto KAMIMURA

IPC: C10M145/14 ,  C10M153/02 ,  C10M169/04 ,  C08F220/18 ,  C08F220/20 ,  C08F230/02

CPC classification number: C10M145/14 ,  C10M153/02 ,  C10M169/04 ,  C08F220/1812 ,  C08F220/20 ,  C08F230/02 ,  C10M2209/084 ,  C10M2225/02 ,  C10N2020/04

Abstract: A lubricating oil additive composition that is suitable as a load bearing additive, and is excellent in wear resistance, extreme pressure property, and thermal stability, and a lubricating oil composition containing the lubricating oil additive composition. A lubricating oil additive composition containing a poly(meth)acrylate-based copolymer (X) containing a structural unit (a) derived from a particular alkyl (meth)acrylate (A), a structural unit (b) derived from a particular hydroxy group containing (meth)acrylate (B), and a structural unit (c) derived from a particular phosphorus-containing (meth)acrylate (C).