The invention concerns the use as surface-active agent of a glucoside alkyl urethane (I) which is composed of units of general formula (II)
A (O - CO - NH - R)s (II)
wherein
A represents a glucosyl unit of a starch hydrolysate molecule, the starch hydrolysate having a Dextrose Equivalent (D.E.) ranging from 1 to 47,
(O - CO - NH - R) represents an N-alkyl aminocarbonyloxy group replacing a hydroxyl group of the glucosyl unit A, and wherein R represents a linear or branched, saturated or unsaturated alkyl group containing from 3 to 22 carbon atoms, and
s represents the number of alkyl carbamate groups per glucosyl unit which number is expressed as degree of substitution (DS) with said DS value ranging from about 0.01 to about 2.0.
The invention further relates to novel glucoside alkyl urethanes (I), and a method for their manufacture and to compositions containing one or more of glucoside alkyl urethanes (I).
The glucoside alkyl urethanes (I) have good to excellent tensio-active properties in combination with good biodegradability and they are suitable as surfactants for use in household and industrial applications, e.g. as detergents, emulsifiers, emulsion stabilisers, foaming agents, foam stabilisers, dispersants and wetting agents.
本发明涉及一种
葡糖苷烷基
氨基甲酸酯(I)作为表面活性剂的用途,该
氨基甲酸酯(I)由通式(II)的单元组成
A (O - CO - NH - R)s (II)
其中
A 代表淀粉
水解物分子的
葡糖基单元,淀粉
水解物的
葡萄糖当量(D.E.)为 1 至 47、
(O - CO - NH - R) 代表取代
葡萄糖基单元 A 的羟基的 N-烷基
氨基羰氧基,其中 R 代表含有 3 至 22 个碳原子的直链或支链、饱和或不饱和烷基,以及
s 代表每个
葡萄糖基单元中
氨基甲酸烷基的数目,该数目用取代度 (DS) 表示,DS 值范围为约 0.01 至约 2.0。
本发明还涉及新型
葡糖苷烷基
氨基甲酸酯(I)及其制造方法,以及含有一种或多种
葡糖苷烷基
氨基甲酸酯(I)的组合物。
葡糖苷烷基聚
氨酯(I)具有良好至卓越的拉伸活性,同时具有良好的
生物降解性,适合作为表面活性剂用于家庭和工业用途,例如用作洗涤剂、
乳化剂、乳液稳定剂、发泡剂、泡沫稳定剂、分散剂和
润湿剂。