| 摘要 |
<p>1416446 Fatty acid esters and sulphated products DIAMOND SHAMROCK CORP 17 Oct 1972 [18 Oct 1971] 47831/72 Heading C2C [Also in Divisions C6 B1 and C5] Esters comprising the reaction product of (1) at least one fatty acid having a backbone of 2 to 28 carbon atoms which may be saturated or unsaturated, branched or linear, substituted or unsubstituted and monocarboxylic or dicarboxylic, and (2) at least one aliphatic alcohol having a backbone of 2 to 30 carbon atoms which may be saturated or unsaturated, branched or linear, monohydric or dihydric, and primary, secondary or tertiary, with the proviso that the molar ratio of the reactants is or is about 1À0 mole of fatty acid for each hydroxy group of the alcohol, with the proviso that at least one of the reactants of the ester is unsaturated are prepared by reacting the appropriate acids and alcohols in the presence of methane sulphonic acid and hypophosphorous acid. The esters may be sulphated together with at least one unsaturated vegetable, animal or fish oil, where the animal oil is not sperm oil, and optionally a mineral oil diluent using sulphuric acid, sodium acid sulphate, chlorosulphonic acid, sulphur trioxide or oleums containing from 15 to 65% by weight sulphur trioxide.</p> |
