Title: Invert emulsions of improved extreme pressure properties

Abstract: Stable water-in-oil invert emulsions suitable for use as fire-resistant lubricants and as fire-resistant hydraulic fluids of improved extreme pressure (E.P.) properties are disclosed. A mixture of polyisobutenyl succinic anhydride, a member selected from the group consisting of a vegetable or animal oil or a mixture thereof, and a mono alpha-unsaturated olefin is sulfurized under heat. The sulfurized mixture is then reacted with a hydrophile on an equivalent basis. This compound is then blended with suitable base stock to form an invert emulsion with improved E.P. and anti-wear properties.

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Inventors: Lee, Donald A. (Aurora, OH, US)
Korosec, Philip S. (Mentor, OH, US)

Application Number: 629763
Filing Date: 1975-11-07
Publication_date: 1977-08-30
Assignee: The Elco Corporation ()
Primary Class(es): 508/226
Other Classes:
US Patent Ref:

2626240	Jan, 1953	Deutser et al.	252/49.
3159580	Dec, 1964	Hammer et al.	252/49.
3177146	Apr, 1965	Francis	252/49.
3255108	Jun, 1966	Wiese	252/49.
3309316	Mar, 1967	McNinch et al.	252/47.
3664955	May, 1972	Panzer	252/47.
3676346	Jul, 1972	Hu	252/47.
3939088	Feb, 1976	Goldschmidt et al.	252/49.

Other Refs: 2,243,981

Mar, 1973	DT

Primary Examiner: Gantz, Delbert E.
Assistant Examiner: Metz, Andrew H.
Attorney: Paul & Paul