LUBRICATING OIL COMPOSITION INCLUDING COMB POLYMETHACRYLATE AND ETHYLENE-BASED OLEFIN COPOLYMER VISCOSITY MODIFIERS - Patent 4150035

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EP 4 150 035 A1

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(43)	Date of publication:
	22.03.2023 Bulletin 2023/12

(21)	Application number: 21727244.2

(22)	Date of filing: 14.05.2021

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International Patent Classification (IPC):

C10M 157/00^(2006.01)

(52)	Cooperative Patent Classification (CPC):
	C10M 2209/084; C10N 2020/02; C10N 2030/02; C10N 2040/25; C10M 2205/02; C10M 2223/045; C10M 2207/262; C10M 2215/28; C10N 2060/14; C10M 2219/046; C10M 2219/068; C10M 2203/1025; C10N 2030/06; C10N 2030/54; C10N 2020/04; C10M 157/00

(86)	International application number:
	PCT/IB2021/054137

(87)	International publication number:
	WO 2021/229517 (18.11.2021 Gazette 2021/46)

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
	Designated Extension States:
	BA ME
	Designated Validation States:
	KH MA MD TN

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Priority:

14.05.2020 US 202063024777 P

(71)	Applicant: Chevron Japan Ltd.
	Tokyo 105-6218 (JP)

(72)	Inventors:
	ONOUCHI, Hisanari Tokyo, 105-6218 (JP) TANAKA, Isao Tokyo, 105-6218 (JP)

(74)	Representative: Haseltine Lake Kempner LLP
	One Portwall Square Portwall Lane Bristol BS1 6BH Bristol BS1 6BH (GB)

(54)	LUBRICATING OIL COMPOSITION INCLUDING COMB POLYMETHACRYLATE AND ETHYLENE-BASED OLEFIN COPOLYMER VISCOSITY MODIFIERS