Alkylaminoacetamide lubricant additives

US7521403B2 · kind B2 · utility

Assignee

• Ciba Specialty Chemicals Corporation · US

Inventors

• Jeffrey A. Levine · Chesterfield, US
• Si Wu · Ossining, US

Key dates

• Filing date: Sep 8, 2005
• Grant date: Apr 21, 2009
• Expiry date: Apr 11, 2027

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2030/45
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Alkylamine, alkylenedi-, alkylenetri- or alkylenetetra-amine derivatives of N-alkyl-halo-acetamides, are useful as ashless, phosphorus-free and sulfur-free antiwear and friction modifying additives for lubricating oils. The additives are of the formula (I), (II) or (III)where A is alkylene of from 2 to 6 carbon atoms or is a groupG, each independently, is alkylene of 2 to 6 carbon atoms, R, each independently, is alkyl or alkenyl of 1 to 8 carbon atoms and R′, each independently, is hydrogen or alkyl or alkenyl or 1 to 24 carbon atoms, where if an amide nitrogen is monosubstituted by alkyl or alkenyl, said alkyl or alkenyl is from 8 to 24 carbon atoms, where if an amide nitrogen is disubstituted by alkyl or alkenyl, the total carbon atoms of said alkyls or alkenyls combined are from 8 to 18 carbon atoms, and where each amide nitrogen is either mono- or disubstituted by alkyl or alkenyl.