发明名称 |
Polysulfide compositions from unsaturated fatty elements and/or (poly)unsaturated esters from acids and from olefins, optionally their preparation and their utilisation as lubricant additives. |
摘要 |
<p>Polysulphide compositions of fatty substances or esters of (poly)unsaturated acids obtained by a process which comprises especially: - a stage (1) in which at least one unsaturated fatty substance and/or at least one ester of poly(unsaturated) carboxylic acid is/are reacted in the presence or absence of an aliphatic monoolefin, with at least one compound chosen from sulphur monochloride and dichloride, thus forming an addition product or adduct; - a stage (2) in which hydrogen sulphide and/or a mercapton is/are reacted with an alkali metal hydroxide or ammonium hydroxide in a substantially anhydrous aliphatic monoalcohol; - a stage (3) in which the said adduct and optionally a monohalogenated hydrocarbon compound are brought into contact with the alcoholic solution obtained at the end of stage (2); - a stage (4) in which the monoalcohol is removed by distillation under reduced pressure. These compositions are employed as additives for inorganic or synthetic lubricants.</p> |
申请公布号 |
EP0410849(A1) |
申请公布日期 |
1991.01.30 |
申请号 |
EP19900402068 |
申请日期 |
1990.07.18 |
申请人 |
INSTITUT FRANCAIS DU PETROLE |
发明人 |
BORN, MAURICE;BRIQUET, LUCIENNE;LALLEMENT, JACQUES;PARC, GUY |
分类号 |
C10N30/06;C10N70/00;C07C323/51;C07G99/00;C10M135/02;C10M135/06;C10M159/12 |
主分类号 |
C10N30/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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