Patent ID: 6713524
Filing Date: 2004-03-30
Classification: A61L,C08F,G02B

Abstract:
A compound of formula wherein R1 is an electron-withdrawing substituent and n is an integer from 0 to 2,Z is a group which functions as a precursor for carbene or nitrene formation, A is a radical of formula X and X1 are each independently of the other a group â€”Oâ€” or â€”NR2â€”, wherein R2 is hydrogen or C1-C4-alkyl;A1 is C2-C30-alkyl which may be Interrupted by â€”Oâ€”; R is linear or branched C1-C18-alkylene or unsubstituted or C1-C4-alkyl- or C1-C4-alkoxy-substituted C6-C10-arylene, C7-C18-aralkylene, C6-C10-arylene-C1-C2-alkylene-C6-C10-arylene, C3-C8-cycloalkylene, C3-C8-cycloakylene-C1-C6-alkylene, C3-C8-cycloalkylene-C1-C2-alkylene-C3-C8-cycloalkylene or C1-C6-alkylene-C3-C8-cycloakylene-C1-C8-alkylene; and (oligomer) is (i) the radical of a telomer of formula wherein (alk) is C2-C12-alkylene,Q is a monovalent group that is suitable to act as a polymerization chain-reaction terminator, p and q are each independently of another an integer from 0 to 750, wherein the total of (p+q) is an integer from 2 to 750, and B and Bâ€² are each independently of the other a 1,2-ethylene radical derivable from a copolymerizable vinyl monomer by replacing the vinylic double bond by a single bond, at least one of the radicals B and Bâ€² being substituted by a hydrophilic substituent; or (i-i) the radical of a telomer of formula wherein (alk*) Q*, p1 and q1 each independently have the meaning of (alk), Q, p and q,B1 is a 1,2-ethylene radical derivable from a copolymerizable vinyl monomer by replacing the vinylic double bond by a single bond, which is substituted by a radical â€”T-(oligomer1), wherein (oligomer1) independently is a radical of formula (3a) above and T is is a direct bond or a radical of formula â€”C(O)â€”(T1)xâ€”X3â€”â€ƒâ€ƒ(2a*) or â€”(T2)mâ€”NHâ€”C(O)â€”X4â€”â€ƒâ€ƒ(2b*); or â€”(T2)mâ€”X3â€”C(O)â€”â€ƒâ€ƒ(2c*); or â€”C(O)â€”NHâ€”(alk**)â€”C(O)â€”X3â€”â€ƒâ€ƒ(2d*); or â€”C(O)â€”X4â€”(alk***)â€”X3â€”C(O)â€”â€ƒâ€ƒ(2e*); T1 is â€”Oâ€”C2-C12-alkylene which is unsubstituted or substituted by hydroxy, or is â€”Oâ€”C2-C12-alkylene-NHâ€”C(O)â€” or â€”Oâ€”C2-C12-alkylene-Oâ€”C(O)â€”NHâ€”R13â€”NHâ€”C(O)â€”, wherein R13 independently has the meaning of R above; T2 is C1-C8-alkylene; phenylene or benzylene; X3 and X4 are each independently of the other a bivalent group â€”Oâ€” or â€”NR2â€², wherein R2â€² is hydrogen or C1-C6-alkyl; (alk**) is C1-C6-alkylene and (alk***) is C2-C12-alkylene, and m and x are each independently of the other the number 0 or 1; and B1â€² independently has the meaning of B1 or B; or (ii) the radical of an oligomer of the formula wherein R3 is hydrogen or unsubstituted or hydroxy-substituted C1-C12-alkyl, u is an integer from 2 to 750 and 0â€² is a radical of a polymerization initiator, or(iii) the radical of formula wherein X2 independently has the meaning of X above, and R3 and u are as defined above, or(iv) the radical of an oligomer of formula wherein R4 and R4â€² are each independently C1-C4-alkyl, An31 is an anion, v is an integer from 2 to 750, and Qâ€³ is a monovalent group that is suitable to act as a polymerization chain-reaction terminator;subject to the proviso that A is not a radical of formula (2b) if (oligomer) is a radical of formula (3b) or (3c).