Three Dimensionally and Randomly Oriented Fibrous Structures
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United States of America Patent
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Jan 9, 2014
app pub date -
Jul 5, 2013
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Jul 5, 2012
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Abstract
A randomly-oriented 3-D fibrous structure and a method for making the same. The method involves electrospinning a spinning dope with an electrospinning apparatus, wherein the spinning dope comprises: a solvent; a polymer dissolved in the solvent, wherein the dissolved polymer is in subunits having molecular weights that are about 5 to about 150 kDa; and a surfactant; to form one or more fibers that comprise a polymer-surfactant complex and that arrange randomly and evenly in three dimensions when contacting a collecting board of the electrospinning apparatus thereby forming the randomly-oriented 3-D fibrous structure.
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