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5849677 |
Sulfurized olefin composition and its method of preparation
This invention concerns a process for preparing a sulfurized olefin containing reduced amounts of thiones using a low molecular weight hydrocarbon to precipitate the thiones from the sulfurized...
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5523005 |
Gear lubricant composition
Gear oil compositions are described which comprise a lubricating base oil having dissolved therein: (A) at least one phosphite ester characterized by the formula: ##STR1## wherein R 1 and R 2 ...
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5410088 |
Process for sulfurized olefinic product
A process for preparing, in high yield, a sulfurized olefinic product for use in lubricating oil compositions having a low chlorine content, a sulfur content of from about 40 to about 50 weight...
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5182037 |
Phosphorus- and/or nitrogen-containing derivatives of sulfur-containing compounds, lubricant, fuel and functional fluid compositions
This invention is directed to phosphorus and/or nitrogen-containing derivative compositions of sulfur containing compounds which are suitable particularly for use as additives for lubricants, fuels...
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4954274 |
Sulfurized olefin extreme pressure additives
Sulfurized olefins are produced by reacting sulfur monochloride with a monoolefin (e.g. isobutene) in the presence of minor amounts of an active Lewis acid (e.g. ferric chloride) to form an adduct,...
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4795576 |
Polysulfided olefin compositions, their preparation and use as additives for lubricants
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...
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4645610 |
Method for the preparation of olefin polysulfides, the products obtained and their utilization as lubricant additives
A method for the preparation of olefin polysulfides that can be used in particular as extreme pressure additives for lubricants is described. This method comprises: (1) reacting sulfur monochloride...
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4563302 |
Sulfurized olefin process
A sulfurized olefin of improved solubility in lubricating oil is made by reacting sulfur monochloride with a monoolefin (e.g. isobutylene) to form an adduct which is reacted with sodium sulfide,...
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4204969 |
Lubricant composition containing sulfurized olefin extreme pressure additive
An additive for improving extreme pressure properties of lubricating oil is made by reacting sulfur monochloride with a monoolefin (e.g. isobutene) in the presence of a promoter amount of a lower...
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4194980 |
Sulfurized olefin lubricant additives and compositions containing same
Lubricant additives having substantially improved extreme pressure characteristics are provided by modifying certain sulfurized olefins by reacting said olefins with a cyclic polydisulfide under...
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4132659 |
Sulfur and chlorine-containing lubricating oil additive
Lubricating oil additives are prepared by reacting 1-alkenes with sulfur and sulfur monochloride in the molar ratio 1:0.6-0.9:0.05-0.2. The additives have anti-wear, extreme pressure, and...
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3471404 |
LUBRICATING COMPOSITIONS CONTAINING POLYSULFURIZED OLEFIN
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