CA2077339C - Antioxydant et dispersant ameliorant l'indice de viscosite - Google Patents

Antioxydant et dispersant ameliorant l'indice de viscosite

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Publication number
CA2077339C
CA2077339C CA002077339A CA2077339A CA2077339C CA 2077339 C CA2077339 C CA 2077339C CA 002077339 A CA002077339 A CA 002077339A CA 2077339 A CA2077339 A CA 2077339A CA 2077339 C CA2077339 C CA 2077339C
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CA
Canada
Prior art keywords
polyamine
anhydride
additive
dicarboxylic acid
ethylene
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.)
Expired - Lifetime
Application number
CA002077339A
Other languages
English (en)
Other versions
CA2077339A1 (fr
Inventor
Abhimanyu O. Patil
Robert D. Lundberg
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.)
ExxonMobil Chemical Patents Inc
Original Assignee
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
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Publication of CA2077339A1 publication Critical patent/CA2077339A1/fr
Application granted granted Critical
Publication of CA2077339C publication Critical patent/CA2077339C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • C10L1/00—Liquid carbonaceous fuels
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    • C10L1/14—Organic compounds
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    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2070/00—Specific manufacturing methods for lubricant compositions
    • C10N2070/02—Concentrating of additives

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Lubricants (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Compositions oléagineuses, notamment compositions d'huiles lubrifiantes, présentant des propriétés antioxydantes améliorées et renfermant une quantité efficace d'un dispersant améliorant l'indice de viscosité, constitué des produits de réaction des composés suivants : a) copolymère d'éthylène liposoluble renfermant environ 15 à 90 % en poids d'éthylène et environ 10 à 85 % en poids d'au moins une alpha-oléfine C3 à C28, avec une masse molaire moyenne en nombre d'environ 5000 à 500 000, et greffe d'un acide carboxylique éthyléniquement insaturé, renfermant 1 ou 2 fractions acide ou anhydre; b) polyamine organique portant au moins deux groupes amino primaires; c) aldéhyde; d) réactif azoté hétérocyclique possédant au moins un groupe -N(H)- dans le noyau hétérocyclique; e) facultativement, une quantité efficace d'un acide dicarboxylique avec substitution par un hydrocarbyle, à longue chaîne et de fonctionnalité élevée, soit au moins 1,2, source du dispersant améliorant l'indice de viscosité et permettant d'obtenir de meilleures propriétés viscosimétriques à basse température.
CA002077339A 1990-03-08 1991-03-04 Antioxydant et dispersant ameliorant l'indice de viscosite Expired - Lifetime CA2077339C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US49080290A 1990-03-08 1990-03-08
US490,802 1990-03-08

Publications (2)

Publication Number Publication Date
CA2077339A1 CA2077339A1 (fr) 1991-09-09
CA2077339C true CA2077339C (fr) 1998-12-08

Family

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CA002077339A Expired - Lifetime CA2077339C (fr) 1990-03-08 1991-03-04 Antioxydant et dispersant ameliorant l'indice de viscosite

Country Status (5)

Country Link
EP (1) EP0520012B1 (fr)
BR (1) BR9106126A (fr)
CA (1) CA2077339C (fr)
DE (1) DE69107446T2 (fr)
WO (1) WO1991013952A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5439607A (en) * 1993-12-30 1995-08-08 Exxon Chemical Patents Inc. Multifunctional viscosity index improver-dispersant antioxidant
US5663126A (en) * 1994-10-21 1997-09-02 Castrol Limited Polar grafted polyolefins, methods for their manufacture, and lubricating oil compositions containing them
US5523008A (en) * 1994-10-21 1996-06-04 Castrol Limited Polar grafted polyolefins, methods for their manufacture, and lubricating oil compositions containing them

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2475570B1 (fr) * 1980-02-08 1986-04-11 Lubrizol Corp Compositions de benzotriazole dispersables dans des lubrifiants composes et procedes pour leur preparation
ES2024644B3 (es) * 1987-06-16 1992-03-01 Exxon Chemical Patents Inc Aditivo de copolimero de etileno injertado estabilizado util en composiciones de aceite.
US5035821A (en) * 1988-07-18 1991-07-30 Exxon Chemical Patents Inc. End-capped multifunctional viscosity index improver
CA1339787C (fr) * 1988-07-18 1998-03-31 David Yen-Lung Chung Agent multifonctionnel servant a ameliorer l'indice de viscosite
US5219480A (en) * 1988-08-01 1993-06-15 Exxon Chemical Patents Inc. Ethylene alpha-olefin mannich base viscosity index improver/dispersant additives derived from amino phenols and monosecondary amines
US4897086A (en) * 1988-12-29 1990-01-30 Mobil Oil Corporation Lubricant and fuel compositions containing reaction products of polyalkenyl succinimides, aldehydes, and triazoles

Also Published As

Publication number Publication date
DE69107446D1 (de) 1995-03-23
BR9106126A (pt) 1993-03-02
EP0520012A1 (fr) 1992-12-30
WO1991013952A1 (fr) 1991-09-19
EP0520012B1 (fr) 1995-02-15
CA2077339A1 (fr) 1991-09-09
DE69107446T2 (de) 1995-06-22

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