Tensio-active glucoside urethanes

Details Tensio-active glucoside urethanes Tensio-active glucoside urethanes

2000-12-12

2009-02-03

Zemel, Irina S (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carbohydrate or derivative as a reactant

C527S301000, C536S001110, C536S016300, C536S018700, C536S030000, C536S032000, C536S035000, C536S056000, C536S058000, C536S123100, C536S123120, C536S124000

Reexamination Certificate

active

07485689

ABSTRACT:
Disclosed are glucoside alkyl urethanes composed of units of the formula: A(O—CO—NH—R)3wherein 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 which are useful as surface-active agents. Also disclosed are a method for their manufacture and compositions containing one or more glucoside alkyl urethanes. The glucoside alkyl urethanes have good to excellent tensio-active properties in combination with good biodegrability 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.

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