公开(公告)号：US20210179965A1

公开(公告)日：2021-06-17

申请号：US16715772

申请日：2019-12-16

Applicant: Infineum International Limited

Inventor： Nguyen Nga ,  Ronald Lewis ,  Jun Xu ,  Ewan Galbraith

IPC: C10M169/04 ,  C10M145/14

Abstract: A comb copolymer viscosity modifier may be made by polymerization comprising at least, or consisting essentially of, the following monomers: (a) (optionally from 7.0 wt % to 18 wt %, by repeat units, of) a hydrogenated polybutadiene-based (alk)acrylate ester macromonomer; (b) (optionally from 33 wt % to 64 wt % or from 38 wt % to 58 wt %, by repeat units, of) a C3-C8 alkyl (alk)acrylate ester monomer; (c) (optionally up to 35.0 wt %, by repeat units, of) a C12-C24 alkyl (alk)acrylate ester monomer; and (d) (optionally from 3.0 wt % to 27 wt %, by repeat units, of) a C6-C20 aryl, aralkyl, or alkaryl (alk)acrylate ester monomer, such that a sum of repeat units due to (c) plus (d) constitute at least 21.0 wt % of repeat units of the comb copolymer viscosity modifier. Lubricant compositions comprising the comb copolymer viscosity modifier, as well as uses thereof and methods for modifying viscosity and dispersancy, are also contemplated.

公开(公告)号：US11365273B2

公开(公告)日：2022-06-21

申请号：US17109623

申请日：2020-12-02

Applicant: Infineum International Limited

Inventor： Nga Nguyen ,  Ronald Lewis ,  Jun Xu ,  Ewan Galbraith

IPC: C10M169/04 ,  C10M145/14 ,  C08F279/02 ,  C08K5/01 ,  C10N20/02

Abstract: A comb copolymer viscosity modifier may be made by polymerization comprising at least, or consisting essentially of, the following monomers: (a) (optionally from 7.0 wt % to 18 wt %, by repeat units, of) a hydrogenated polybutadiene-based (alk)acrylate ester macromonomer; (b) (optionally from 33 wt % to 64 wt % or from 38 wt % to 58 wt %, by repeat units, of) a C3-C8 alkyl (alk)acrylate ester monomer; (c) (optionally up to 35.0 wt %, by repeat units, of) a C12-C24 alkyl (alk)acrylate ester monomer; and (d) (optionally from 3.0 wt % to 27 wt %, by repeat units, of) a C6-C20 aryl, aralkyl, or alkaryl (alk)acrylate ester monomer, such that a sum of repeat units due to (c) plus (d) constitute at least 21.0 wt % of repeat units of the comb copolymer viscosity modifier. Lubricant compositions comprising the comb copolymer viscosity modifier, as well as uses thereof and methods for modifying viscosity and dispersancy, are also contemplated.

公开(公告)号：US20210179760A1

公开(公告)日：2021-06-17

申请号：US17109623

申请日：2020-12-02

Applicant: Infineum International Limited

Inventor： Nga Nguyen ,  Ronald Lewis ,  Jun Xu ,  Ewan Galbraith

IPC: C08F279/02 ,  C08K5/01

Abstract: A comb copolymer viscosity modifier may be made by polymerization comprising at least, or consisting essentially of, the following monomers: (a) (optionally from 7.0 wt % to 18 wt %, by repeat units, of) a hydrogenated polybutadiene-based (alk)acrylate ester macromonomer; (b) (optionally from 33 wt % to 64 wt % or from 38 wt % to 58 wt %, by repeat units, of) a C3-C8 alkyl (alk)acrylate ester monomer; (c) (optionally up to 35.0 wt %, by repeat units, of) a C12-C24 alkyl (alk)acrylate ester monomer; and (d) (optionally from 3.0 wt % to 27 wt %, by repeat units, of) a C6-C20 aryl, aralkyl, or alkaryl (alk)acrylate ester monomer, such that a sum of repeat units due to (c) plus (d) constitute at least 21.0 wt % of repeat units of the comb copolymer viscosity modifier. Lubricant compositions comprising the comb copolymer viscosity modifier, as well as uses thereof and methods for modifying viscosity and dispersancy, are also contemplated.

公开(公告)号：US20250109349A1

公开(公告)日：2025-04-03

申请号：US18644915

申请日：2024-04-24

Applicant: Infineum International Limited

Inventor： Nga Nguyen ,  Peter M. Wright ,  Thomas Featherstone ,  Andrew J. Rainsford ,  Ewan K. Galbraith ,  Kunihiro Kouno ,  Akihiro Kodaka ,  Youhei Inagaki ,  Xiabo Shen ,  Jun Xu ,  Nigel Male

IPC: C10M133/00 ,  C10M101/00 ,  C10M145/14 ,  C10N10/04 ,  C10N10/12 ,  C10N30/02

Abstract: This invention relates to a lubricating oil composition comprising or resulting from the admixing of: (i) at least 50 mass %, based upon the weight of the lubricating oil composition, of base oil, (ii) at least one capped dispersant having number average molecular weight (Mn) of less than 1600 g/mol, (iii) at least one magnesium containing detergent, (iv) at least one calcium containing detergent, (v) at least one copolymer viscosity modifier that has: 1) a ratio of relative KV140/relative KV20 of 1.9 or more; 2) a ratio of relative KV100/relative KV70 or 1.30 or more; and 3) a viscosity index (ASTM 2270D) of 320 or more, when 1), 2) and 3) are measured on blend, having a KV100 of about 8 cSt, of the copolymer viscosity modifier and a group III base oil having a KV100 (ASTM D445) of about 4 cSt and a viscosity index (ASTM D2270) of about 120.