Patent ID: 6068697
Filing Date: 2000-05-30
Classification: C04B,C08B

Abstract:
A polysaccharide derivative prepared by replacing all or part of the hydroxyl hydrogen atoms of a polysaccharide or polysaccharide derivative with (A) a hydrophobic substituent having a C.sub.8 -C.sub.43 hydrocarbon chain and (B) an ionic hydrophilic substituent having at least one member selected from the group consisting of sulfonic, carboxyl, phosphoric, and sulfate groups and salts thereof, wherein the average degree of replacement by the substituent (A) is 0.0001 or above but below 0.001 per monosaccharide unit as determined by Zeisel's method or the diazomethane method, and by the substituent (B) is 0.01 to 2.0 per monosaccharide unit as determined by colloidal titration.