HYDROSWELLABLE, SEGMENTED, ALIPHATIC POLYURETHANES AND POLYURETHANE UREAS
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United States of America Patent
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Issued Date -
Aug 16, 2012
app pub date -
Mar 8, 2012
filing date -
Mar 12, 2008
priority date (Note) -
Abandoned
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Abstract
Hydroswellable, absorbable and non-absorbable, aliphatic, segmented polyurethanes and polyurethane-urea capable of swelling in the biological environment with associated increase in volume of at least 3 percent have more than one type of segments, including those derived from polyethylene glycol and the molecular chains are structurally tailored to allow the use of corresponding formulations and medical devices as carriers for bioactive agents, rheological modifiers of cyanoacrylate-based tissue adhesives, as protective devices for repairing defective or diseased components of articulating joints and their cartilage, and scaffolds for cartilage tissue engineering.
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