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1. WO2020194546 - LUBRICATING OIL COMPOSITION FOR INTERNAL COMBUSTION ENGINES AND METHOD FOR PRODUCING SAME

Publication Number WO/2020/194546
Publication Date 01.10.2020
International Application No. PCT/JP2019/013001
International Filing Date 26.03.2019
IPC
C10M 169/04 2006.01
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
169Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
04Mixtures of base-materials and additives
C10M 101/02 2006.01
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
101Lubricating compositions characterised by the base-material being a mineral or fatty oil
02Petroleum fractions
C10M 105/32 2006.01
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
105Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
08containing oxygen
32Esters
C10M 143/00 2006.01
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
143Lubricating composition characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
C10M 171/02 2006.01
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
171Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well defined but for which the chemical nature is either unspecified or only very vaguely indicated
02Specified values of viscosity or viscosity index
C10N 20/00 2006.01
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M59
20Specified physical properties of component of lubricating compositions
Applicants
  • 三井化学株式会社 MITSUI CHEMICALS, INC. [JP]/[JP]
Inventors
  • 阿部 昌太 ABE Shota
Agents
  • 特許業務法人SSINPAT SSINPAT PATENT FIRM
Priority Data
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) LUBRICATING OIL COMPOSITION FOR INTERNAL COMBUSTION ENGINES AND METHOD FOR PRODUCING SAME
(FR) COMPOSITION D'HUILE LUBRIFIANTE POUR MOTEUR À COMBUSTION INTERNE, ET PROCÉDÉ DE FABRICATION DE CELLE-CI
(JA) 内燃機関用潤滑油組成物およびその製造方法
Abstract
(EN)
[Problem] To provide a lubricating oil composition for internal combustion engines, which is capable of maintaining a high HTHS viscosity with low viscosity, while exhibiting excellent stability of thermal oxidation resistance. [Solution] A lubricating oil composition for internal combustion engines, which contains a lubricant base oil and 3% by mass or more but less than 40% by mass of a liquid random copolymer of ethylene and an α-olefin, said random copolymer being produced using a specific catalyst, and which is configured such that: the kinematic viscosity at 100°C is 6.9 mm2/s or more but less than 12.5 mm2/s; and the lubricant base oil is composed of a mineral oil that has a kinematic viscosity at 100°C of 2-7 mm2/s, a viscosity index of 105 or more and a pour point of -10°C or less and/or a synthetic oil that has a kinematic viscosity at 100°C of 1-7 mm2/s, a viscosity index of 120 or more and a pour point of -30°C or less.
(FR)
L'invention fournit une composition d'huile lubrifiante pour huile de moteur à combustion interne qui permet de maintenir une viscosité à haute température et à haut cisaillement élevée à un faible degré de viscosité, et qui se révèle également excellente en termes de résistance à la chaleur et stabilité à l'oxydation. Plus précisément, l'invention concerne une composition d'huile lubrifiante pour moteur à combustion interne qui comprend une huile de base d'huile lubrifiante, et 3% en masse ou plus à moins de 40% en masse d'un copolymère aléatoire liquide d'un éthylène et d'une α-oléfine fabriqué à l'aide d'un catalyseur spécifique, et qui présente une viscosité cinématique à 100°C supérieure ou égale à 6,9 mm2/s et inférieure à 12,5 mm2/s. Ladite huile de base d'huile lubrifiante est constituée d'une huile minérale de viscosité cinématique à 100°C comprise entre 2 et 7 mm2/s, d'indice de viscosité supérieur ou égal à 105 et de point d'écoulement inférieur ou égal à -10℃, et/ou d'une huile synthétique de viscosité cinématique à 100°C comprise entre 1 et 7 mm2/s, d'indice de viscosité supérieur ou égal à 120, et de point d'écoulement inférieur ou égal à -30℃.
(JA)
[課題]低粘度にて高いHTHS粘度を維持可能であり、さらに耐熱酸化安定性にも優れる内燃機関油用潤滑油組成物を提供すること。 [解決手段]潤滑油基油と、特定の触媒を用いて製造されるエチレンとα-オレフィンとの液状ランダム共重合体を3質量%以上40質量%未満とを含有し、100℃動粘度が6.9mm2/s以上12.5mm2/s未満であり、前記潤滑油基油が、100℃動粘度が2~7mm2/s、粘度指数が105以上、流動点が-10℃以下である鉱物油、および/または100℃動粘度が1~7mm2/s、粘度指数が120以上、流動点が-30℃以下である合成油からなる内燃機関用潤滑油組成物。
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