| 摘要 |
Compounds of unknown structure, referred to as "primary sultaines," are obtained by refluxing equimolar amounts of a C10-14-straight chain primary alkyl amine and a C3-4-sultone in acetone solution. The "sultaine" precipitates out and may be recrystallized from acetone. In the example, the "sultaine" is obtained from propane sultone and an amine having an alkyl chain consisting predominantly of C12 and C14 chains. The "sultaines" are used as detergent builders (see Division C5).ALSO:A liquid detergent composition comprises, by weight, (a) 15-35% of a detergent of formula R(OC2H4)xSO4M wherein R is a straight-chain C10- 14-alkyl group of which at least 50% have 12 carbon atoms, x is 0-4, and M is sodium, potassium, ammonium or triethanolammonium; (b) 3-8% of the reaction product of a straight-chain C10- 14-alkyl primary amine (at least 50% of the alkyl groups having 12 carbon atoms) and a C3- 4-sultone (see Division C2); and (c) 10-25% of a C1- 3-alkanol, preferably ethanol; the ratio (a):(b) being 3-6: 1 and the total of (a) and (b) being 20-40%. Generally up to 5% of sodium, potassium or ammonium toluene or xylene sulphonate may be present and the balance of the composition consists of water; (a) is preferably the sodium or ammonium salt of the sulphated condensate from 1 mole middle cut coconut alcohol and 3 moles ethylene oxide. Up to 12% of inorganic salt impurities, up to 3% of opacifiers such as ethylene glycol distearate or polystyrene, and perfume and colour may also be incorporated. |
