EP0765372A1 - Niedrig flüchtige schmiermittelzusammensetzungen - Google Patents

Niedrig flüchtige schmiermittelzusammensetzungen

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Publication number
EP0765372A1
EP0765372A1 EP95924212A EP95924212A EP0765372A1 EP 0765372 A1 EP0765372 A1 EP 0765372A1 EP 95924212 A EP95924212 A EP 95924212A EP 95924212 A EP95924212 A EP 95924212A EP 0765372 A1 EP0765372 A1 EP 0765372A1
Authority
EP
European Patent Office
Prior art keywords
oil
multigrade
copolymer
hydrocarbon backbone
olefin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95924212A
Other languages
English (en)
French (fr)
Other versions
EP0765372B1 (de
Inventor
David R. Adams
Paul Brice
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Infineum USA LP
ExxonMobil Chemical Patents Inc
Original Assignee
Exxon Chemical Ltd
Exxon Chemical Patents Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB9412065A external-priority patent/GB9412065D0/en
Priority claimed from GB9412066A external-priority patent/GB9412066D0/en
Application filed by Exxon Chemical Ltd, Exxon Chemical Patents Inc filed Critical Exxon Chemical Ltd
Publication of EP0765372A1 publication Critical patent/EP0765372A1/de
Application granted granted Critical
Publication of EP0765372B1 publication Critical patent/EP0765372B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • C10M169/00—Lubricating 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
    • C10M169/04—Mixtures of base-materials and additives
    • C10M169/048—Mixtures of base-materials and additives the additives being a mixture of compounds of unknown or incompletely defined constitution, non-macromolecular and macromolecular compounds
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    • C10M2219/087—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Derivatives thereof, e.g. sulfurised phenols
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    • C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
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    • C10M2219/088—Neutral salts
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    • C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
    • C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
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    • C10M2219/089—Overbased salts
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    • C10M2219/102—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon only in the ring
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    • C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
    • C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
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    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
    • C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
    • C10M2219/106—Thiadiazoles
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    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
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    • C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
    • C10M2219/108—Phenothiazine
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    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/045—Metal containing thio derivatives
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    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/06—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having phosphorus-to-carbon bonds
    • C10M2223/065—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having phosphorus-to-carbon bonds containing sulfur
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    • C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
    • C10M2227/06—Organic compounds derived from inorganic acids or metal salts
    • C10M2227/061—Esters derived from boron
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    • C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
    • C10M2229/04—Siloxanes with specific structure
    • C10M2229/041—Siloxanes with specific structure containing aliphatic substituents
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    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/02—Groups 1 or 11
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    • C10N2010/04—Groups 2 or 12
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    • C10N2040/25—Internal-combustion engines
    • C10N2040/255—Gasoline engines
    • C10N2040/28—Rotary engines

Definitions

  • Multigrade oils ususally also contain one or more viscosity modifiers (VM) which are longer chain polymers, which may be functionalised to provide other properties when they are known as multifunctional VMs (or MFVMs), but primarily act to improve the viscosity characteristics of the oil over the operating range.
  • VM viscosity modifiers
  • MFVMs multifunctional VMs
  • the VM acts to increase viscosity at high temperature to provide more protection to the engine at high speeds, without unduly increasing viscosity at low temperatures which would otherwise make starting a cold engine difficult.
  • One or more of the ligands may ⁇ -bond to the transition metal atom, which may be a Group 4, 5 or 6 transition metal and/or a lanthanide or actinide transition metal, with zirconium, titanium and hafnium being particularly preferred.
  • the transition metal atom which may be a Group 4, 5 or 6 transition metal and/or a lanthanide or actinide transition metal, with zirconium, titanium and hafnium being particularly preferred.
  • suitable viscosity modifiers are polyisobutylene, copolymers of ethylene and propylene and higher alpha- olefins, polymethacrylates, polyalkylmethacrylates, methacrylate copolymers, copolymers of an unsaturated dicarboxylic acid and a vinyl compound, inter polymers of styrene and acrylic esters, and partially hydrogenated copolymers of styrene/ isoprene, styrene/butadiene, and isoprene/butadiene, as well as the partially hydrogenated homopolymers of butadiene and isoprene and isoprene/divinylbenzene. 13
  • the final formulations may employ from 2 to 15 mass % and preferably 5 to 10 mass %, typically about 7 to 8 mass % of the concentrate or additive package with the remainder being base oil.
  • EBCO/PAM polyamine and borated
  • BSRn basestock ratio for basestock n
EP95924212A 1994-06-16 1995-06-12 Niedrig flüchtige schmiermittelzusammensetzungen Expired - Lifetime EP0765372B1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB9412065 1994-06-16
GB9412066 1994-06-16
GB9412065A GB9412065D0 (en) 1994-06-16 1994-06-16 Low volatility lubricating compositions
GB9412066A GB9412066D0 (en) 1994-06-16 1994-06-16 Low volatility lubricating compositions
PCT/EP1995/002272 WO1995034618A1 (en) 1994-06-16 1995-06-12 Low volatility luricating compositions

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EP0765372A1 true EP0765372A1 (de) 1997-04-02
EP0765372B1 EP0765372B1 (de) 2001-03-21

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CA (1) CA2193120A1 (de)
DE (1) DE69520432T2 (de)
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5558802A (en) * 1995-09-14 1996-09-24 Exxon Chemical Patents Inc Multigrade crankcase lubricants with low temperature pumpability and low volatility
WO1998021297A1 (en) * 1996-11-13 1998-05-22 Exxon Chemical Patents Inc. Lubricating oil formulations with improved low temperature performance
GB9716283D0 (en) * 1997-08-01 1997-10-08 Exxon Chemical Patents Inc Lubricating oil compositions
US6303550B1 (en) * 1998-11-06 2001-10-16 Infineum Usa L.P. Lubricating oil composition

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4863624A (en) * 1987-09-09 1989-09-05 Exxon Chemical Patents Inc. Dispersant additives mixtures for oleaginous compositions
CA1333596C (en) * 1986-10-16 1994-12-20 Robert Dean Lundberg High functionality low molecular weight oil soluble dispersant additives useful in oleaginous compositions
US5229022A (en) * 1988-08-01 1993-07-20 Exxon Chemical Patents Inc. Ethylene alpha-olefin polymer substituted mono- and dicarboxylic acid dispersant additives (PT-920)

Non-Patent Citations (1)

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Title
See references of WO9534618A1 *

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EP0765372B1 (de) 2001-03-21
WO1995034618A1 (en) 1995-12-21
AU2881295A (en) 1996-01-05
DE69520432D1 (de) 2001-04-26
AU689914B2 (en) 1998-04-09
DE69520432T2 (de) 2001-07-05
ES2155522T3 (es) 2001-05-16

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