Patent ID: 9359718
Filing Date: 2016-06-07
CPC Classification: C08K,C08L,C09D,D06M,D21H,Y10T

Claim Text:
1. A water-insoluble and coloration-suppressed chitosan aqueous solution composition, the aqueous solution composition consisting of: a polysaccharide consisting of a material selected from the group consisting of N-acetylglucosamine, glucosamine, and a combination thereof; glyoxylic acid; and an aqueous medium, which is water or a mixture of water and a water-soluble organic solvent, wherein a content of said polysaccharide in the aqueous solution composition is in a range from 0.1 to 30 wt %, and a content ratio by weight of the glyoxylic acid relative to the polysaccharide in the aqueous solution composition is in a range from 0.8 to 3.