US 5,849,679 A · Non-ionic surfactants, emulsified compositions, dispersions and a process for the preparation of glycoside compounds

Abstract

A non-ionic surfactant represented by the general formula (1) or (2) shown below, an emulsified composition and a dispersion containing same are disclosed. Also disclosed is a method of preparing glycoside compound having nonionic surface active properties. The nonionic surfactant has good safety to human bodies and is excellent in producing foam with good feeling in touch. General formula 1!: Z(OH).sub.q-1 !--OC.sub.3 H.sub.5 (OH)O!--R.sup.1 1! wherein Z(OH).sub.q-1 ! stands for a saccharide residue excluding the hydroxyl group connected to the carbon atom in anomeric position among q hydroxyl groups connected to the saccharide compound of the formula Z(OH).sub.q !, --OC.sub.3 H.sub.5 (OH)O!-- for a glycerol residue excluding 2 hydrogen atoms from glycerol HOC.sub.3 H.sub.5 (OH)O!--H, and R.sup.1 for an aliphatic group having 1-12 carbon atoms, General formula 2!: Z(OH).sub.q-1 !--OC.sub.3 H.sub.5 (OH)O!.sub.x --R.sup.2 2! wherein Z(OH)!.sub.q-1 stands for a saccharide residue excluding the hydroxyl groups connected to the carbon atom in anomeric position among q hydroxyl groups connected to the saccharide compound of the formula Z(OH).sub.q !, --OC.sub.3 H.sub.5 (OH)O!.sub.x -- for a glycerol residue excluding 2 hydrogen atoms from polyglycerol HOC.sub.3 H.sub.5 (OH)O!.sub.x --H (1<x.ltoreq.7, and R.sup.2 for an aliphatic group having 13-22 carbon atoms.

Claims8

Dependent claims

A non-ionic surfactant comprising an isomeric mixture of .alpha.-anomeric isomer and .beta.-anomeric isomer of a glycoside compound of the following general formula 1 or 2:

General formula 1:
(Z(OH).sub.q-1)--O(C.sub.3 H.sub.5 (OH)O)--R.sup.-1
wherein Z(OH).sub.q-1 is a saccharide residue obtained by removing the hydroxyl group connected to the carbon atom in anomeric position among q hydroxyl groups connected to the saccharide compound of the formula Z(OH).sub.q, --O(C.sub.3 H.sub.5 (OH)O)-- is a glycerol residue obtained by removing 2 hydrogen atoms from glycerol HO(C.sub.3 H.sub.5 (OH)O)--H, and R.sup.1 is an aliphatic group having 1-12 carbon atoms,
General formula 2:
(Z(OH).sub.q-1)--O(C.sub.3 H.sub.5 (OH)O).sub.x --R.sup.2
wherein Z(OH).sub.q-1 is a saccharide residue obtained by removing the hydroxyl group connected to the carbon atom in anomeric position among q hydroxyl groups connected to the saccharide compound of the formula Z(OH).sub.q, --O(C.sub.3 H.sub.5 (OH)O).sub.x -- is a glycerol residue obtained by removing 2 hydrogen atoms from polyglycerol HO(C.sub.3 H.sub.5 (OH) O).sub.x --H wherein 1<x.ltoreq.7, and R.sup.2 is an aliphatic group having 13-22 carbon atoms;
and
wherein the weight ratio of the .alpha.-isomer to the .beta.-isomer is within the range of 80/20-5/95.

5 more elements

Dependencies are inferred from the claim text.

Non-ionic surfactants, emulsified compositions, dispersions and a process for the preparation of glycoside compounds

Life of this patent

Non-ionic surfactants, emulsified compositions, dispersions and a process for the preparation of glycoside compounds

Life of this patent

Abstract

Claims8