Discrete hydrophilic-hydrophobic porous materials and methods for making the same
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United States of America Patent
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Issued Date -
Jul 17, 2003
app pub date -
Nov 21, 2002
filing date -
Nov 21, 2001
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Abandoned
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Abstract
This invention relates to porous polymeric materials having discrete regions that exhibit distinct surface properties. The invention also relates to methods of making such porous polymeric materials and their applications. The geography of the discrete regions can be determined in a selective and controlled manner. Porous materials having discrete regions of distinct hydrophilicity, hydrophobicity, oleophobicity, biological molecules binding capability, wetting and wicking property, presence or density of functional groups, chemical reactivity, electric charges, porosity and pore sizes can be manufactured using this invention.
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