POLYMERIC NANOFIBERS AND NANOFIBROUS WEB
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United States of America Patent
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May 30, 2019
app pub date -
Feb 1, 2019
filing date -
Feb 1, 2019
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Abstract
The present invention is directed toward an apparatus comprising a high speed rotating disk or bowl for nanofiber spinning from the rotational sheared thin film fibrillation at the enclosed serrations with the optimized stretching zone to produce the defects-free nanofibrous web and nanofibrous membrane comprising a nanofiber network with a number average nanofiber diameter less than 500 nm that yield the crystallinity higher than the polymer resin used in making the web.
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