Patent ID: 7919614

Claim:
A synthetic polysaccharide containing from 8 to 24 monosaccharide units comprising a sequence of disaccharides formed from a uronic acid and from a hexose, said polysaccharide having its hydroxyl groups etherified with a (C 1 -C 6 )alkyl group or esterified in the form of a sulpho group, each disaccharide being at least monoetherified, having the formula: in which the wavy line indicates either a bond below or above the plane of the pyranose ring; R 1 , R 6 , R 11 and R 16 are a (C 1 -C 6 )alkyl; R 2 , R 3 , R 4 , R 5 , R 7 , R 8 , R 9 , R 10 , R 12 , R 13 , R 14 , R 15 and R 17 are a (C 1 -C 6 )alkyl or an SO 3 − group; m, n and p are such that the sum m+n+p is greater than or equal to 4 and less than or equal to 12, one or two of the three being able to be zero; and the salts thereof and the acids corresponding thereto.