Title: Compositions of olefines polysulfide, preparation and use as lubricant additives thereof
Application Number: 87107001 Application Date: 1987.10.17
Publication Number: 1017952 Publication Date: 1988.04.27
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C10M135/20
Applicant(s) Name: Institut Francais Du Petrole Address:
Inventor(s) Name: Guy Parc;Lucienne Briquet;Maurice Born;jacques Lal
Attorney & Agent: LUO HONG
Abstract:
    Compositions of olefin polysulfides having an increased solubility in mineral oils and in synthetic oils, particularly of the hydrogenated polyalphaolefin type, are disclosed. They are prepared more particularly by reacting a sulfur monochloride with a monoolefin (e.g. isobutene) so as to form an addition product, called an adduct, which is then reacted with an alkali metal or ammonium polysulfide preferably in the presence of ethanol medium, obtained, for example, by reacting a mercaptan with an alkali hydroxide or ammonia in the presence of elemental sulfur. These compositions of olefin polysulfides can be used as extreme-pressure additives in gear-oils or in metal-working oils.
Time: 4