摘要:
Mixtures of alkylether sulphate and alkylpolyglycol ether carboxylic acid or salt thereof are provided, wherein the alkylpolyglycol ether carboxylic acid contains at least 7 oxyethylene residue, said mixtures containing 80-95% by weight of alkylether sulphate and 20-5% by weight of alkylpolyglycol ether carboxylic acid or salt thereof. In spite of this low percentage of polyether carboxylic acid, these compositions show a highly decreased skin toxicity. Also compositions intended for frequent or prolonged contact with human hair and skin are provided, which contain such mixtures as detergents.
摘要:
@ Novel surfactant compounds are provided of the formula R-CO-NH-(C 2 H 4 O) n -CH 2 COOH, wherein R-CO- is the residue of at least one aliphatic carboxylic acid of 6 - 22 carbon atoms and n represents a number having an average value of 2 - 10, as well as their salts with alkali metals, ammonium and amines. These compounds possess not only a low primary toxicity, but also a low secondary toxicity for the skin, and accordingly they are especially useful in cosmetic compositions, compositions for non-automatic dishwashing and laundering compositions for the fine laundry.
摘要:
Mixtures of alkylether sulphate and alkylpolyglycol ether carboxylic acid or salt thereof are provided, wherein the alkylpolyglycol ether carboxylic acid contains at least 7 oxyethylene residue, said mixtures containing 80-95% by weight of alkylether sulphate and 20-5% by weight of alkylpolyglycol ether carboxylic acid or salt thereof. In spite of this low percentage of polyether carboxylic acid, these compositions show a highly decreased skin toxicity. Also compositions intended for frequent or prolonged contact with human hair and skin are provided, which contain such mixtures as detergents.