Biocompatible polyurethanes modified with lower alkyl sulfonate

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

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528 49, 528 71, C08F28304, C08G 1828, C08G 1870

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active

048808830

ABSTRACT:
Modified-polyurethane block copolymers and devices formed therefrom demonstrate excellent biocompatibility and improved physical and mechanical properties. In a preferred embodiment, from about 5 to about 25 percent of urethane hydrogen atoms are replaced with propyl sulfonate and propyl carboxylate groups to provide the modified copolymer.

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Hwang et al., "Properties of Polyurethane Anionomers: Ionization via Bimolecular Nucleophilic Displacement of Urethane Hydrogen", J. Macromol. Sci. Phys., B23, 153-174 (1984).

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