Patent US4963278A successfully refreshed from Google Patents.
← Back to Patent Explorer
US4963278A Expired / Lapsed US ⏱️ 0.0 years remaining

Lubricant and fuel compositions containing reaction products of polyalkenyl succinimides, aldehydes, and triazoles

Assignee: Mobil Oil AS
•
Filing: 1989-11-30
•
Granted: 1990-10-16
•
Expires: 2009-11-30
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Disclosed is an additive for liquid hydrocarbon fuel composition, particularly diesel fuels. The additive composition is the reaction product of polyalkenyl-substituted succinimides, aldehydes, and triazoles. It also finds use in lubricant compositions.

Inventors

  • 👤 David A. Blain
  • 👤 Angeline B. Cardis
  • 👤 Sylvia S. McGonigle

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 13:43
CPC Classifications
C; C07; C07D; C07D403/00; C07D403/14; C08; C08F; C08F8/00; C08F8/48; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/221; C10L1/232; C10L1/234; C10L1/238; C10L1/2383; C10M; C10M133/00; C10M133/02; C10M133/38; C10M133/44; C10M133/52; C10M133/58; C10M2201/00; C10M2201/14; C10M2203/00; C10M2203/10; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/027; C10M2207/028; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/086; C10M2215/10; C10M2215/102; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/28; C10M2215/30; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/046; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10N; C10N2010/00; C10N2010/02; C10N2010/04; F; F02; F02B; F02B3/00; F02B3/06

Claims Analysis

Total Claims: 14
Claim 1
Independent Claim 143 words
An improved lubricant composition comprising a major proportion of an oil of lubricating viscosity or a grease prepared thereof and between about 0.1% and 10% by weight of the total composition of a multifunctional detergent/dispersant/antioxidant reaction product obtained by reacting a polyalkenyl-substituted succinimide having the structural formula: ##STR4## where R is an alkyl or alkenyl or alkenyl group of 9 to 150 carbon atoms with a triazole having the structural formula: ##STR5## where R 1 is hydrogen or an alkyl, aryl, arylalkyl, or alkylaryl group of 1 to 12 carbon atoms with an aldehyde wherein the polyalkenyl-substituted succinimide, aldehyde and triazole are reacted in a mole ratio of succinimide to aldehyde to triazole respectively of between about 1 to 0.1 to 0.1 and about 1 to 4 to 4 at temperatures varying from about 100° C. to about 200° C. at ambient pressures.
Claim 2
Dependent Claim 143 words
An improved lubricant composition comprising a major proportion of an oil of lubricating viscosity or a grease prepared thereof and between about 0.1% and 10% by weight of the total composition of a multifunctional detergent/dispersant/antioxidant reaction product obtained by reacting a polyalkenyl-substituted succinimide having the structural formula: ##STR4## where R is an alkyl or alkenyl or alkenyl group of 9 to 150 carbon atoms with a triazole having the structural formula: ##STR5## where R 1 is hydrogen or an alkyl, aryl, arylalkyl, or alkylaryl group of 1 to 12 carbon atoms with an aldehyde wherein the polyalkenyl-substituted succinimide, aldehyde and triazole are reacted in a mole ratio of succinimide to aldehyde to triazole respectively of between about 1 to 0.1 to 0.1 and about 1 to 4 to 4 at temperatures varying from about 100° C. to about 200° C. at ambient pressures.
Claim 3
Dependent Claim 13 words
The composition of claim 1 wherein the polyalkenyl-substituted succinimide is a polyisobutenyl succinimide.
Claim 4
Dependent Claim 10 words
The composition of claim 1 wherein the triazole is tolyltriazole.
Claim 5
Dependent Claim 62 words
The composition of claim 1 wherein the reaction product has the structural formula: ##STR6## where R is an alkyl or alkenyl group of 9 to 150 carbon atoms,, R 1 and R 2 are each hydrogen or an alkyl, aryl, arylalkyl, alkylarlyl group of 1 to 12 carbon atoms, y is greater than 0, and x+y is equal to 1 to 4.
Claim 6
Dependent Claim 23 words
The composition of claim 1 wherein the reaction is conducted in a carrier solvent selected from the group consisting of xylene and toluene.
Claim 7
Dependent Claim 32 words
A method for making a lubricant composition comprising adding to a lubricant between about 0.1% and about 10% by weight of the total composition of the reaction product described in claim 1.
Claim 8
Dependent Claim 21 words
The composition of claim 1 wherein the aldehyde is selected from the group consisting of formaldehyde, paraformaldehyde, benzaldehyde, salicylaldehyde, and 2-ethylhexanal.
Claim 9
Dependent Claim 10 words
The composition of claim 7 wherein the aldehyde is formaldehyde.
Claim 10
Dependent Claim 41 words
The composition of claim 1 wherein the oil of lubricating viscosity is selected from (1) mineral oils, (2) synthetic oils or (3) a mixture of (1) and (2) or (4) a grease prepared from any one of (1), (2) or (3).
Claim 11
Dependent Claim 16 words
The composition of claim 9 wherein the oil of lubricating viscosity is (1) a mineral oil.
Claim 12
Dependent Claim 16 words
The composition of claim 9 wherein the oil of lubricating viscosity is (2) a synthetic oil.
Claim 13
Dependent Claim 19 words
The composition of claim 9 wherein the oil of lubricating viscosity is (3) a mixture of (1) and (2).
Claim 14
Dependent Claim 8 words
The composition of claim 9 comprising a grease.

References Cited (Backward Citations)

US3623985A Cited
US3791803A Cited
US3788993A Cited
US3897351A Cited
US4148605A Cited
US4263015A Cited
US4153564A Cited
US4256595A Cited
US4212754A Cited
US4282007A Cited
US4376635A Cited
US4464276A Cited
US4855074A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-10-15 1994-04-16 1994-10-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-10-15 1998-04-16 1998-10-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-10-15 2002-04-16 2002-10-16 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag