Modified succinimides (II)

• US 4,617,138 A
• Filed: 04/12/1985
• Issued: 10/14/1986
• 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:
  US06/722,882
• Time in Patent Office: 550 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: 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: 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-fuelled engines
• CPC Class Codes: C10N 2040/255 : Gasoline engines
• CPC Class Codes: C10N 2040/28 : Rotary engines
• CPC Class Codes: C10N 2070/02 : Concentrating of additives

Abstract

Disclosed are polyamino alkenyl or alkyl succinimides which have been modified by treatment with a lactone to yield polyamino alkenyl or alkyl succinimides wherein one or more of the basic nitrogens of the polyamino moiety is substituted with a hydrocarbylcarbonylalkylene group. The additives so disclosed are useful as dispersants in lubricating oils, gasolines, marine crankcase oils and hydraulic oils.

Claims

1. A polyamino alkenyl or alkyl succinimide wherein one or more of the basic nitrogens of the polyamino moiety is substituted with a hydrocarbylcarbonylalkylene wherein said hydrocarbylcarbonyl group contains 1 to 30 carbon atoms;

said alkylene is a three or four carbon alkylene group or a three of four carbon alkylene group substituted with from 1 to 3 alkyl groups of from 1 to 2 carbons each.

2. The polyamino alkenyl or alkyl succinimide of claim 1 wherein said alkylene is a three or four carbon alkylene group.

3. The polyamino alkenyl or alkyl succinimide of claim 2 wherein said alkylene is propylene.

4. The polyamino alkenyl or alkyl succinimide of claim 2 wherein said alkylene is butylene.

5. The polyamino alkenyl or alkyl succinimide of claim 1 wherein said alkylene is a three or four carbon alkylene group substituted with from 1 to 3 alkyl groups of from 1 to 2 carbons each.

6. The polyamino alkenyl or alkyl succinimide of claim 1 wherein said hydrocarbylcarbonylalkylene is methylcarbonylpropylene (i.e., ##STR14##

7. A compound of the formula:

##STR15## wherein R₁ is alkenyl or alkyl of from 10 to 300 carbon atoms;

R₂ is alkylene of 2 to 10 carbon atoms;

R₆ is hydrogen, lower alkyl of from 1 to 6 carbon atoms, and hydrocarbylcarbonylalkylene wherein said hydrocarbyl contains from 1 to 30 carbon atoms;

said alkylene is a three of four carbon alkylene group or a three or four carbon alkylene group substituted with from 1 to 3 alkyl groups of from 1 to 2 carbon atoms each;

a is an integer of from 1 to 6; and

T is --N(R₆)₂, --NHR₆ and ##STR16## wherein R₆ is as defined above and R₁ is alkenyl or alkyl of from 10 to 300 carbon atoms, with the proviso that the compound contains at least one R₆ which is hydrocarbylcarbonylalkylene.

8. A lubricating oil composition comprising an oil of lubricating viscosity and an amount effective to provide dispersancy of a compound as defined in claim 7.

9. 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 as defined in claim 7.

10. A compound as defined in claim 7 wherein R₁ is alkenyl or alkyl of from 20 to 100 carbon atoms.

11. A compound as defined in claim 10 wherein R₂ is alkylene of from 2 to 6 carbon atoms.

12. A compound as defined in claim 11 wherein the hydrocarbylcarbonylalkylene group is methylcarbonyl propylene.