| US 7,572,929 B2 | ||
| Dithiocarbonate containing macromers and polymers derived therefrom | ||
| Ankur S. Kulshrestha, Jersey City, N.J. (US); Kevin Cooper, Flemington, N.J. (US); and Walter R. Laredo, Hillsborough, N.J. (US) | ||
| Assigned to Ethicon, Inc. - USA, Somerville, N.J. (US) | ||
| Filed on Mar. 27, 2006, as Appl. No. 11/390,124. | ||
| Prior Publication US 2007/0225460 A1, Sep. 27, 2007 | ||
| Int. Cl. C07C 329/18 (2006.01); C08F 28/06 (2006.01) | ||
| U.S. Cl. 558—247 [558/245; 536/122; 508/445] | 9 Claims |
1. A dithiocarbonate-containing macromer having the formula:
 wherein n is an integer greater than or equal to two;
R1 is selected from the group consisting of an alpha-, omega-diol containing from C-2 to C-22 carbon atoms; an alpha-, omega-diol
containing ether linkages; and a polyol; and
R2 is a biodegradable or water-soluble linkage selected from the group consisting of an ester, an amide, a carbonate, an ester-amide,
an orthoester, an anhydride, an imine, a phosphazene, a poly(peptide), a poly(hydroxy acid), a poly(orthocarbonate), a poly(anhydride),
a poly(lactone), a poly(aminoacid), a poly(carbonate), poly(phosphonate), a poly(oxaester), a poly(alkylene diglycolate),
a fatty acid polyester, a poly(ester-amide), a polydepsipeptide, a poly(orthoester), poly(phosphazene), poly(ethylene glycol),
poly(ethylene oxide), poly(vinyl alcohol), poly(ethylene-co-vinyl alcohol), poly(acrylic acid), poly(ethylene-co-acrylic acid),
poly(ethyloxazoline), polyvinylpyrrolidone, poly(ethylene-co-vinyl pyrrolidone), poly(maleic acid), poly(ethylene-co-maleic
acid), poly(acrylamide), poly(ethylenimine), poly(ethylene oxide)-co-poly(propylene oxide) block copolymers, and combinations
thereof; and
R3 is selected from the group consisting of hydrogen, methyl, ethyl, and propyl.
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