Biocompatible polyurethane
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United States of America Patent
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Apr 28, 1992
Issued Date -
N/A
app pub date -
Feb 13, 1990
filing date -
May 21, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process is disclosed for the production of bio-compatible polyurethane, proceeding from cyclo aliphatic diisocyanate and macrodiol, which are reacted into a pre-adduct that is then chain lengthened with a mixture of the lower-molecular diol and a macrodiol. The so-obtained polyurethane displays high resistance in human and animal bodies and is suitable for the manufacture of catheters, blood pumps, heart valves, as well as bio-compatible lacquers and coatings.
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