Medical devices containing dry spun non-wovens of poly-4-hydroxybutyrate and copolymers with anisotropic properties
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United States of America Patent
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Dec 6, 2016
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Jan 8, 2015
app pub date -
May 16, 2014
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Jun 15, 2010
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Abstract
Continuous processing methods are used for making absorbable polymeric non-wovens, with anisotropic properties, improved mechanical properties and without substantial loss of polymer molecular weight during processing. The method includes producing dry spun-non wovens from a polymer, and collecting the fibers using a rotating collector plate, preferably a rotating cylinder, to collect the non-woven instead of a fiberglass stationary collector plate. The non-wovens can be used for a variety of purposes including fabrication of medical devices.
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