| 摘要 |
An aqueous composition comprising solution of a betaine of the following general Formula I is disclosed
in which R is an alkyl group of coconut fatty acids, preferably hydrogenated coconut fatty acids, or a fatty acid mixture which, on the average, corresponds to coconut fatty acids, wherein the solution has a solids content of at least 45 % by weight, a pH of 4.5 to 8, an amidoamine content of not more than 1 % by weight, and a free fatty acid content less than 1 % by weight, an N-acyl ±-aminoacids content between 0.5 to 3 % by weight and 0 to 4 % by weight of glycerin, based on the solution.
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