Patent ID: 8357522
Filing Date: 2013-01-22
Classification: C07K,C12N

Abstract:
1. An oligosaccharide-containing polyurethane represented by the following formula [1-1]: wherein R R R R OLS is an oligosaccharide skeleton having two primary hydroxyl groups, r shows the total number of secondary hydroxyl groups of oligosaccharide, p and q are each an integer within the range of 1≦p≦r, 0≦q≦r−1, and m and n are each a repeat unit number, m is an integer of 0-1000 and n is an integer of 1-1000, and n/(m+n) is a number within the range of 0.01-1.00, the following formula [1-2]: wherein R R R OLS is an oligosaccharide skeleton having two primary hydroxyl groups, r shows the total number of secondary hydroxyl groups of oligosaccharide, p and q are each an integer within the range of 1≦p≦r, 0≦q≦r−1, and m and n are each a repeat unit number, m is an integer of 0-1000 and n is an integer of 1-1000, and n/(m+n) is a number within the range of 0.01-1.00, the following formula [2-1]: wherein R R OLS is an oligosaccharide skeleton having two primary hydroxyl groups, r shows the total number of secondary hydroxyl groups of oligosaccharide, XM is an acid-containing group wherein M is a hydrogen atom, an alkali metal atom, an ammonium group or an organic amino group, and X is an acid-derived moiety, s shows the number of the secondary hydroxyl groups of an oligosaccharide modified with an acid-containing group, which is an integer within the range of 1 ≦s≦r, and m and n are each a repeat unit number, m is an integer of 0-1000 and n is an integer of 1-1000, and n/(m+n) is a number within the range of 0.01-1.00, or the following formula [3-1]: wherein R R R R XM is an acid-containing group wherein M is a hydrogen atom, an alkali metal atom, an ammonium group or an organic amino group, and X is an acid-derived moiety, s shows the number of hydroxyl groups of a sugar residue R OLS is an oligosaccharide skeleton having two primary hydroxyl groups, r shows the total number of secondary hydroxyl groups of oligosaccharide, p and q are each an integer within the range of 1≦p≦r, 0≦q≦r−1, and m and n are each a repeat unit number, m is an integer of 0-1000 and n is an integer of 1-1000, and n/(m+n) is a number within the range of 0.01-1.00.