Polysulfided olefin compositions, their preparation and use as a

Details Polysulfided olefin compositions, their preparation and use as a Polysulfided olefin compositions, their preparation and use as a

Filed on

1986-10-17

Date issued

1989-01-03

Examiner

Dixon, Jr., William R.

Patent Class

Compositions

SubClass

Electrolytes for electrical devices

Other Related Categories

252 488, 568 18, 568 21, C10M13500, C07C14900

Type

Patent

Status

active

Patent number

047955767

Description

ABSTRACT:
The disclosed polysulfided olefin compositions can be used in particular as extreme-pressure additives for lubricants. They are prepared by a process comprising the steps of:
(1) reacting sulfur monochloride and/or dichloride with at least one monoolefin having 2 to 5 carbon atoms (generally isobutene) to form an "adduct"; (2) contacting said "adduct" jointly with an unsaturated monohalogenated hydrocarbon compound, in a proportion corresponding to a number of halogen gram-atoms from about 1 to 70% of the number of halogen gram-atoms of the assembly "monohalogenated hydrocarbon compound+adduct", with a sulfur compound (e.g. alkaline sulfide, hydrogenosulfide or polysulfide) and, mostly, element sulfur, in a proportion of 0 to 7 gram-atoms per mole of sulfur compound, within an aqueous or hydroalcoholic medium; (3) heating the mixture and, after settling in 2 phases, separating the organic phase containing the polysulfided olefin, and (4) optionally treating the obtained product with a base.
The obtained polysulfided olefins, depending on their sulfur content, may be used as extreme-pressure additives in oil compositions for gears or for metal working.

REFERENCES:
patent: 4645610 (1987-02-01), Born et al.

Affiliated with

Also associated with

Rating

Polysulfided olefin compositions, their preparation and use as a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polysulfided olefin compositions, their preparation and use as a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polysulfided olefin compositions, their preparation and use as a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2167068