Patent · US Expired

Dispersing additive compositions for lubricating oils and their manufacture

US4560490A · kind A · utility

1Cited by

2References

18Claims

0Family size

Assignee

INSTITUT FRANCAIS DU PETROLE · FR

Inventors

Jacques Denis · Tassin-la-Demi-Lune, FR
Michel Senneron · Meylan, FR
Bernard Sillion · Val-de-Reuil, FR

Key dates

Filing date	Feb 3, 1984
Grant date	Dec 24, 1985
Priority date	—
Expiry date	Feb 3, 2004

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10M2227/00
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

An additive composition having a dispersing effect in lubricating oils is obtained by reacting at least one substituted succinic anhydride with at least one alkylphenol and with hexamethylene tetramine, preferably in respective proportions of from 1 to 2 moles of substituted succinic anhydride per mole of the alkylphenol and from 1.2 to 2 amino equivalents of hexamethylene tetramine per mole of the substituted succinic anhydride.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.