Method for fabrication of elastomeric asymmetric membranes from hydrophobic polymers
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United States of America Patent
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Aug 27, 2013
Grant Date -
May 31, 2012
app pub date -
Dec 13, 2011
filing date -
Nov 14, 2006
priority date (Note) -
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Abstract
Hydrophobic, asymmetric membranes are formed integrally from elastomeric polymers. The membranes have a dense, discriminating layer and a thick, porous support layer and require no other support. The membranes of the invention provide an economic advantage over prior art composite membranes used for separating target organics from a mixture. Using the methods of the invention it is possible to separate two or more organic components wherein discrimination is made on the basis of molecular size.
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International Classification(s)
- 2011 Application Filing Year
- B01D Class
- 3215 Applications Filed
- 2644 Patents Issued To-Date
- 82.24 % Issued To-Date
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Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 27, 2025 |
