Compositions – Electrolytes for electrical devices
Patent
1993-11-18
1995-11-28
Howard, Jacqueline V.
Compositions
Electrolytes for electrical devices
252 333, 252 334, 252 496, 252 498, 252 56R, C10M13510, C10M15912
Patent
active
054704952
ABSTRACT:
Colloidal products according to the invention are obtained by a method comprising a step (a) providing a colloidal product containing at least one alkaline earth metal carbonate in micelle form, optionally reacted with at least one compound selected from alkylsulphonic acids and alkylarylsulphonic acids and salts thereof and long chain aliphatic carboxylic acids and salts thereof such as to modify a proportion of up to 70% of the basicity reserve of the original colloidal product and a step (b) in which the residual basicity reserve is neutralized by at least one acid containing at least one element selected from boron, phosphorus and sulphur. These colloidal products can be used as wear resistance and extreme pressure additives in lubricants.
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patent: 3714042 (1973-01-01), Greenough
patent: 4328111 (1982-05-01), Watson et al.
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patent: 5080812 (1992-01-01), Parc et al.
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Born Maurice
Daoudal Bertrand
Delfort Bruno
Dixmier Francoise
Hipeaux Jean-Claude
Howard Jacqueline V.
Institut Francais du Pe'trole
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