Method for retarding blooming of polyetheramide tubing for medical devices
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United States of America Patent
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Dec 17, 1996
Issued Date -
N/A
app pub date -
Jul 17, 1995
filing date -
Apr 15, 1991
priority date (Note) -
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Abstract
Medical device tubing is prepared from a blended polymer which is a blend of polyetheramide having substantially no ester linkages together with either or both of a polyamide and a polyesteretheramide having a hardness of at least about Shore 70D. The resulting tubing has an exceptionally high ratio of burst strength to flexibility, and the blended polymer retards blooming of the tubing that is believed to result from migration of monomers to the surface of the tubing.
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