Patent ID: 7090829

Claim:
A fluorinated or paramagnetic polyuronide polymer comprising a polymer of Formula I, II , III or IV and pharmaceutically acceptable salts thereof for the polymers that are capable of forming salts, wherein for Formula I: R 1 represents OH, OX, X; R 2 represents OH, OX, X; R 3 represents OH, OY, OX, NHX, alkyl, alkoxyalkyl; R 4 represents C═O, CH 2 , CNX, CF 2 ; for Formula II: R 1 represents OH, OX, X, OR 4 ; R 2 represents OH, OX, X, OR4; R 3 represents OH, Y, X; R 4 =acyl, alkyl or aryl for Formula III: R 1 represents OH, OX, X; R 2 represents OH, OX, X; R 3 represents H, N(X) 3 ; for Formula IV: R 1 represents OH, OX, X; R 2 represents OH, OX, X, —OA(X)O— or OA(R 5 )O—; R 5 represents alkyl or acyl and A represents a non-paramagnetic ion wherein M is any paramagnetic ion of the transition metal or lanthanide series, and “a” is a whole number and “b” is 1/a; wherein for all of the formulas I–IV X represents a fluorine containing moiety; Y represents CH 2 C(OH)CH 3 ; m, p, x, y, z represents 0–150; and n is from 10–10,000 inclusive.