Modified succinimides (III)

• US 4,614,603 A
• Filed: 04/12/1985
• Issued: 09/30/1986
• Est. Priority Date: 04/12/1985
• Status: Expired due to Term

• Current Assignee: Chevron Research Company (Chevron Corp.)
• Original Assignee: Chevron Research Company (Chevron Corp.)
• Inventors: Wollenberg, Robert H.
• Primary Examiner(s): Dixon, Jr., William R.
• Assistant Examiner(s): Medley, Margaret B.
• Application Number:
  US06/722,881
• Time in Patent Office: 536 Days
• Field of Search: 252/51.5 A
• US Class Current: 508/291
• CPC Class Codes: C10L 1/224 Amides; Imides carboxylic acid amides, imides C10L1/221, C10L1/2227 take precedence
• CPC Class Codes: C10L 1/2383 Polyamines or polyimines, or derivatives thereof (poly)amines and imines; derivatives thereof (substituted by a macromolecular group containing 30C) C10L1/221 takes precedence
• CPC Class Codes: C10L 1/2418 containing a carboxylic substituted; derivatives thereof, e.g. esters
• CPC Class Codes: C10M 133/16 Amides; Imides
• CPC Class Codes: C10M 133/52 having a carbon chain of 30 or more atoms
• CPC Class Codes: C10M 133/56 Amides; Imides
• CPC Class Codes: C10M 2215/04 having amino groups bound to acyclic or cycloaliphatic carbon atoms
• CPC Class Codes: C10M 2215/042 containing hydroxy groups; Alkoxylated derivatives thereof
• CPC Class Codes: C10M 2215/08 Amides
• CPC Class Codes: C10M 2215/082 containing hydroxyl groups; Alkoxylated derivatives
• CPC Class Codes: C10M 2215/086 Imides
• CPC Class Codes: C10M 2215/22 Heterocyclic nitrogen compounds
• CPC Class Codes: C10M 2215/221 Six-membered rings containing nitrogen and carbon only
• CPC Class Codes: C10M 2215/225 the rings containing both nitrogen and oxygen
• CPC Class Codes: C10M 2215/226 Morpholines
• CPC Class Codes: C10M 2215/26 Amines
• CPC Class Codes: C10M 2215/28 Amides; Imides
• CPC Class Codes: C10M 2215/30 Heterocyclic compounds
• CPC Class Codes: C10M 2217/046 Polyamines, i.e. macromoleculars obtained by condensation of more than eleven amine monomers
• CPC Class Codes: C10M 2217/06 Macromolecular compounds obtained by functionalisation op polymers with a nitrogen containing compound
• CPC Class Codes: C10M 2219/085 : containing carboxyl groups; Derivatives thereof
• CPC Class Codes: C10N 2040/08 : Hydraulic fluids, e.g. brake-fluids
• CPC Class Codes: C10N 2040/25 : Internal-combustion engines
• CPC Class Codes: C10N 2040/251 : Alcohol fueled engines
• CPC Class Codes: C10N 2040/255 : Gasoline engines
• CPC Class Codes: C10N 2040/28 : Rotary engines

Abstract

Disclosed herein are additives which are useful as dispersants and detergents in lubricating oils. In particular, this invention is directed toward polyamino alkenyl or alkyl succinimides which have been modified by treatment with a compound of the formula: ##STR1## wherein W is oxygen or sulfur; X is oxygen, sulfur or R₅ N< wherein R₅ is hydrogen, and alkyl of from 1 to 20 carbon atoms; and R₄ is an alkylene group of from 2 to 5 carbon atoms or an alkylene group of from 2 to 5 carbon atoms substituted with from 1 to 3 alkyl groups of from 1 to 2 carbon atoms each with the proviso that both W and X are not both oxygen. The modified polyamino alkenyl or alkyl succinimides of this invention have been found to possess dispersancy and detergency in lubricating oils. These modified succinimides are also useful as dispersants and detergents in fuels.

Claims

1. A polyamino alkenyl or alkyl succinimide wherein one or more of the nitrogens of the polyamino moiety is substituted with ##STR23## wherein W is oxygen or sulfur;

X is oxygen, sulfur or R₅ N<

wherein R₅ is hydrogen or alkyl of from 1 to 20 carbon atoms; and

R₄ is an alkylene group of from 2 to 5 carbon atoms or an alkylene group of from 2 to 5 carbon atoms substituted with from 1 to 3 alkyl groups of from 1 to 2 carbon atoms each with the proviso that both W and X are not both oxygen.

2. The polyamino alkenyl or alkyl succinimide as defined in claim 1 wherein W is oxygen and X is >

NR₅.

3. The polyamino alkenyl or alkyl succinimide as defined in claim 1 wherein W is sulfur and X is >

NR₅.

4. The polyamino alkenyl or alkyl succinimide as defined in claim 1 wherein W is oxygen and X is sulfur.

5. The polyamino alkenyl or alkyl succinimide as defined in claim 1 wherein W is sulfur and X is sulfur.

11. A lubricating oil composition comprising an oil of lubricating viscosity and an amount effective to provide dispersancy of a compound as defined in claim 1.

12. A lubricating oil concentrate comprising from about 90 to 10 weight percent of an oil of lubricating viscosity and from about 10 to 90 weight percent of a compound defined in claim 1.

6. A compound of the formula:

##STR24## wherein a is an integer from 1 to 6;

R is alkenyl or alkyl of from 10 to 300 carbon atoms;

R₂ is alkylene of from 2 to 10 carbon atoms;

R₈ is hydrogen, alkyl of from 1 to 6 carbon atoms and ##STR25## wherein W is oxygen or sulfur;

X is oxygen, sulfur or >

NR₅ wherein R₅ is hydrogen or alkyl of from 1 to 20 carbon atoms; and

R₄ is an alkylene group of from 2 to 5 carbon atoms or an alkylene group of from 2 to 5 carbon atoms substituted with from 1 to 3 alkyl groups of from 1 to 2 carbon atoms each with the proviso that X and W are not both oxygen;

T is --NHR₈ or ##STR26## wherein R₈ and R are as defined above with the further proviso that the compound contains at least one R₈ which is ##STR27##

7. The compound as defined in claim 6 wherein W is sulfur and X is >

NR₅.

8. The compound as defined in claim 6 wherein W is oxygen and X is >

NR₅.

9. The compound as defined in claim 6 wherein W is oxygen and X is sulfur.

10. The compound as defined in claim 6 wherein W and X are both sulfur.

13. A compound as defined in claim 6 wherein R is alkenyl or alkyl of from 20 to 100 carbon atoms.

14. A compound as defined in claim 13 wherein R₂ is alkylene of from 2 to 6 carbon atoms.

15. A compound as defined in claim 14 wherein R₄ is a 3 or 4 carbon alkylene group.

16. A compound as defined in claim 8 wherein R₅ is hydrogen.