Patent ID: 6686441
Filing Date: 2004-02-03
Classification: A61K,A61Q,C07C,C08G

Abstract:
A method for preparing a mixture of aspartic acid and a salt of aspartic acid which comprises:drying a solution of a salt of aspartic acid having a cation which does not volatilize during the drying and a salt of aspartic acid having a cation which at least partially volatilizes to provide free aspartic acid during the drying; wherein said solution comprises an additional comonomer copolymerizable with the aspartic acid and salt of aspartic acid; and wherein said additional comonomer is selected from the group consisting of caprolactam, caprolactone, glutamine, arginine, asparagine, cystine, an aminosugar, glucosamine chitin, chitosan and a polysaccharide.