Additives for lubricants and fuels

• US 7,361,629 B2
• Filed: 03/10/2004
• Issued: 04/22/2008
• Est. Priority Date: 03/10/2004
• Status: Active Grant

• Current Assignee: Afton Chemical Corporation (Newmarket Corporation)
• Original Assignee: Afton Chemical Corporation (Newmarket Corporation)
• Inventors: Loper, John T., Dittmeier, Robert T., Hutchison, David A., Griffin, Paul G.
• Primary Examiner(s): Caldarola; Glenn
• Assistant Examiner(s): GOLOBOY, JAMES C
• Application Number:
  US10/797,877
• Publication Number:
  US 20050202980A1
• Time in Patent Office: 1,504 Days
• Field of Search: 508/232, 508/291, 508/293
• US Class Current: 508/291
• CPC Class Codes: C10L 1/221 compounds of uncertain formula; reaction products where mixtures of compounds are obtained
• CPC Class Codes: C10M 133/26 containing a nitrogen-to-nitrogen double bond
• CPC Class Codes: C10M 2215/28 Amides; Imides

Abstract

A multi-functional composition for use as an additive for fuels and lubricants. The composition includes an amination product of a hydrocarbyl substituted succinic acylating agent and a mixture containing an aliphatic polyamine and an aromatic polyamine. The molar ratio of aliphatic polyamine to aromatic polyamine in the mixture ranges from about 10:0.1 to about 0.1:10. The amination product contains at least about 0.1 molar equivalent of the polyamine mixture to 1 molar equivalent of the hydrocarbyl substituted succinic acylating agent.

Claims

1. An oil-soluble composition comprising a compound selected from the group consisting of bis-succinimide-di-amide-amines of the structure:

3. A lubricant additive containing the composition of claim 1.

5. A fuel additive containing the composition of claim 1.

2. An oil-soluble composition comprising a bis-succinimide-amide containing an intramolecular-cyclized or intermolecular cross-linked amide-amine containing a structure represented by:

4. A lubricant containing the lubricant additive of claim 2.

6. A fuel containing the fuel additive of claim 4.