Acylated mono and/or bis-succinimides lubricating oil additives

Details Acylated mono and/or bis-succinimides lubricating oil additives Acylated mono and/or bis-succinimides lubricating oil additives

1994-06-22

1995-10-24

Medley, Margaret

Compositions

Electrolytes for electrical devices

252 496, C10M13316, C10M14900

Patent

active

054607400

ABSTRACT:
A lubricating oil composition comprising a major portion of a lubricating oil and a minor amount of an additive. The additive is prepared by reacting a polyamine with an alkenyl succinic acid anhydride having a number average molecular weight of about 500 to about 10,000 at a temperature of 60.degree. C.-120.degree. C. to form mono-alkenyl succinimide, bis-alkenyl succinimide or a mixture of mono- and bis-alkenyl succinimide. 2-pyrrolidone-5-carboxylic acid is then added to form an acylated mono-alkenyl succinimide, bis-alkenyl succinimide or mixture of mono- and bis-alkenyl succinimide. The acylated mono-alkenyl succinimide, bis-alkenyl succinimide or mixture of mono- and bis-alkenyl succinimide is acylated with an acylating compound selected from the group consisting of glycolic acid, oxalic acid, lactic acid, 2-hydroxymethyl-propionic acid and 2,2-bis(hydroxymethyl) propionic acid at a temperature of about 150.degree. C. to about 185.degree. C., to form a mixed acylated mono-alkenyl succinimide, bis-alkenyl succinimide or mixture of mono- and bis-alkenyl succinimide and the mixed acylated mono-alkenyl succinimide, bis-alkenyl succinimide or mixture of mono- and bis-alkenyl succinimide is recovered.

REFERENCES:
patent: 3185704 (1965-05-01), Kahn et al.
patent: 3903005 (1975-09-01), Kablaoui et al.
patent: 3905781 (1975-09-01), Dorn
patent: 4127493 (1978-11-01), Elliott et al.
patent: 4253979 (1981-03-01), Alexander et al.
patent: 4482464 (1984-11-01), Karol
patent: 4486573 (1984-12-01), Hayashi
patent: 4511366 (1985-04-01), Burrows et al.
patent: 4686054 (1987-08-01), Wisotsky et al.
patent: 4699724 (1987-10-01), Nalesnik et al.
patent: 4927562 (1990-05-01), Karol et al.
patent: 5062980 (1991-11-01), Migdal

Affiliated with

Also associated with

Rating

Acylated mono and/or bis-succinimides lubricating oil additives does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Acylated mono and/or bis-succinimides lubricating oil additives, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acylated mono and/or bis-succinimides lubricating oil additives will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1884464