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1. WO2000027956 - LUBRICATING OIL COMPOSITION

Publication Number WO/2000/027956
Publication Date 18.05.2000
International Application No. PCT/EP1999/009668
International Filing Date 03.11.1999
Chapter 2 Demand Filed 16.02.2000
IPC
C10M 143/12 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
12containing conjugated diene
C10M 167/00 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
167Lubricating compositions characterised by the additive being a mixture of a macromolecular compound, a non-macromolecular compound and a compound of unknown or incompletely defined constitution, each of these compounds being essential
CPC
C10M 143/10
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS
143Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
10containing aromatic monomer, e.g. styrene
C10M 143/12
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS
143Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
12containing conjugated diene
C10M 167/00
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS
167Lubricating compositions characterised by the additive being a mixture of a macromolecular compound, a non-macromolecular compound and a compound of unknown or incompletely defined constitution, each of these compounds being essential
C10M 2205/04
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS
2205Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
04containing aromatic monomers, e.g. styrene
C10M 2205/06
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS
2205Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
06containing conjugated dienes
C10M 2207/024
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS
2207Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
02Hydroxy compounds
023having hydroxy groups bound to carbon atoms of six-membered aromatic rings
024having at least two phenol groups but no condensed ring
Applicants
  • SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. [NL]/[NL]
Inventors
  • DE JONG, Feike
  • WEDLOCK, David, J.
Agents
  • MANSELL, Keith, Rodney
Priority Data
98309090.306.11.1998EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) LUBRICATING OIL COMPOSITION
(FR) COMPOSITION D'HUILE LUBRIFIANTE
Abstract
(EN)
A lubricating oil composition comprising a di-block copolymer of poly(monovinyl aromatic hydrocarbon) and hydrogenated poly(conjugated diene) as a dispersant additive is described. The said di-block copolymer preferably comprises poly(monovinyl aromatic hydrocarbon) in the molecular weight range 8,000 - 30,000. The diblock copolymers are useful as dispersant additives in lubricant oils, reduce heavy metal corrosion, reduce degradation of elastomeric seals and are less sensitive to the presence of over-based detergents.
(FR)
L'invention concerne une composition d'huile lubrifiante qui contient comme additif dispersant un copolymère biséquencé constitué de poly(hydrocarbure monovinylique aromatique) et de poly(diène conjugué) hydrogéné. Dans ledit copolymère, le poly(hydrocarbure monovinylique aromatique) a de préférence un poids moléculaire compris entre 8000 et 30000. Ces copolymères biséquencés sont utiles comme dispersants dans les huiles lubrifiantes, réduisent la corrosion par les métaux lourds et la dégradation des joints élastomères, et sont moins sensibles à la présence de détergents hyperbasiques.
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