摘要:
Compositions useful to improve power transmission in automatic transmission fluids, hydraulic fluids and the like as replacements for basic barium salts of sperm oil are obtained by reacting an excess of a barium base with the combination of a phenol (preferably an alkylphenol), a fatty acid and an alcohol, wherein the fatty acid and alcohol together contain at least 26 carbon atoms in straight-chain configuration. The compositions are preferably further reacted with carbon dioxide, and they may additionally be reacted with about 1-5% of anthranilic acid.
摘要:
Process for preparing barium-containing dispersions in essentially inert diluents by contacting a basically reacting barium compound with carbon dioxide in the presence of a stabilizing agent and promoter. A typical process comprises carbonating a mixture of barium hydroxide monohydrate, heptyl phenol, and the reaction product of polyisobutenyl-substitutedsuccinic anhydride and an alkylene polyamine. The bariumcontaining dispersions thus produced are useful as additives for fuels and lubricants.
摘要:
High molecular weight, oil-soluble, mono- and poly- carboxylic acid esters are post-treated with mono- or polycar- boxylic acid acylating reactants to provide compositions useful as dispersants in lubricants and fuels. Esters of polyisobutenyl-substituted succinic anhydride and pentaerythritol post-treated with maleic anhydride exemplify the process and compositions of this invention.