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1. WO2020194547 - LUBRICANT OIL COMPOSITION FOR VEHICLE TRANSMISSION FLUID AND METHOD FOR PRODUCING SAME

Publication Number WO/2020/194547
Publication Date 01.10.2020
International Application No. PCT/JP2019/013002
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
C08F 4/6592 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
4Polymerisation catalysts
42Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
44selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths, or actinides
60together with refractory metals, iron group metals, platinum group metals, manganese, technetium, rhenium, or compounds thereof
62Refractory metals or compounds thereof
64Titanium, zirconium, hafnium, or compounds thereof
659Component covered by group C08F4/6455
6592containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
C08F 210/16 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
210Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
16Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
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 107/02 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
107Lubricating compositions characterised by the base-material being a macromolecular compound
02Hydrocarbon polymers; Hydrocarbon polymers modified by oxidation
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
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) LUBRICANT OIL COMPOSITION FOR VEHICLE TRANSMISSION FLUID AND METHOD FOR PRODUCING SAME
(FR) COMPOSITION D'HUILE LUBRIFIANTE POUR HUILE DE TRANSMISSION AUTOMOBILE, ET PROCÉDÉ DE FABRICATION DE CELLE-CI
(JA) 自動車変速機油用潤滑油組成物およびその製造方法
Abstract
(EN)
[Problem] To provide a lubricant oil composition which is for vehicle transmission fluid, and which has extremely excellent shear stability, has an excellent high-level balance of temperature-viscosity characteristics and low-temperature viscosity characteristics, and further has excellent heat-resistant oxidation stability. [Solution] This lubricant oil composition for vehicle transmission fluid contains a lubricant base oil and a liquid-phase random copolymer formed of ethylene and α-olefin and prepared by using a specific catalyst, wherein the kinematic viscosity at 100 °C is 4.0-7.5 mm2/s, and the Brookfield viscosity at -40 °C is 20,000 mPa·s or less. The lubricant base oil comprises: a mineral oil having a kinematic viscosity at 100 °C of 2-10 mm2/s, a viscosity index of 105 or more, and a pour point of -10 °C or less; and/or a synthetic oil having a kinematic viscosity at 100 °C of 1-10 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 transmission automobile qui se révèle tout à fait excellente en termes de stabilité de cisaillement, et qui présente un excellent équilibre à un niveau élevé entre caractéristiques de température et viscosité, et caractéristiques de viscosité à basse température, 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 transmission automobile qui comprend une huile de base d'huile lubrifiante, et 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 comprise entre 4,0 et 7,5mm2/s et une viscosité Brookfield inférieure ou égale à 20,000mPa・s. Ladite huile de base d'huile lubrifiante est constituée d'une huile minérale de viscosité cinématique à 100°C comprise entre 2 et 10mm2/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 10mm2/s, d'indice de viscosité supérieur ou égal à 120, et de point d'écoulement inférieur ou égal à -30℃.
(JA)
[課題]剪断安定性が極めて優れ、かつ温度粘度特性、および低温粘度特性が高い水準でバランス良く優れ、さらに耐熱酸化安定性にも優れる自動車変速機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とを含有し、100℃動粘度が4.0~7.5mm2/sであり、-40℃におけるブルックフィールド粘度が20,000mPa・s以下であり、前記潤滑油基油が、100℃動粘度が2~10mm2/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1~10mm2/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自動車変速機用潤滑油組成物。
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