Modified polyisobutylene-based polymers, methods of making, and medical devices
AssigneeMedtronic, Inc.
InventorsKimberly A. CHAFFIN, Xiangji CHEN, Matthew JOLLY, SuPing LYU, Peter L. THOR, Darrel F. UNTEREKER, Zhaoxu WANG
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Abstract
A modified polyisobutylene-based polymer, method of making, and a medical device that includes such polymer, wherein the modified polyisobutylene-based polymer includes urethane, urea, or urethane-urea groups, hard segments, and soft segments, wherein the soft segments comprise phenoxy-containing polyisobutylene residues, and the hard segments include diisocyanate residues and optionally chain extender residues.
Claims13
A modified polyisobutylene-based polymer comprising urethane, urea, or urethane-urea groups, hard segments, and soft segments, wherein the soft segments comprise phenoxy-containing polyisobutylene residues, and the hard segments comprise diisocyanate residues and optionally chain extender residues.
Dependencies are inferred from the claim text.