Microporous material having filtration and adsorption properties and their use in fluid purification processes
The present invention is directed to ultrafiltration membranes comprising a microporous material, said microporous material comprising: (a) a polyolefin matrix present in an amount of at least 2 percent by weight, (b) finely divided, particulate, substantially water-insoluble silica filler distribut...
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| Main Author | |
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| Format | Patent |
| Language | Chinese English |
| Published |
16.08.2013
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| Subjects | |
| Online Access | Get full text |
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| Abstract | The present invention is directed to ultrafiltration membranes comprising a microporous material, said microporous material comprising: (a) a polyolefin matrix present in an amount of at least 2 percent by weight, (b) finely divided, particulate, substantially water-insoluble silica filler distributed throughout said matrix, said filler constituting from about 10 percent to about 90 percent by weight of said microporous material substrate; and (c) at least 35 percent by volume of a network of interconnecting pores communicating throughout the microporous material. The present invention is also directed to methods of separating suspended or dissolved materials from a fluid stream such as a liquid or gaseous stream, comprising passing the fluid stream through the ultrafiltration membrane described above. |
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| AbstractList | The present invention is directed to ultrafiltration membranes comprising a microporous material, said microporous material comprising: (a) a polyolefin matrix present in an amount of at least 2 percent by weight, (b) finely divided, particulate, substantially water-insoluble silica filler distributed throughout said matrix, said filler constituting from about 10 percent to about 90 percent by weight of said microporous material substrate; and (c) at least 35 percent by volume of a network of interconnecting pores communicating throughout the microporous material. The present invention is also directed to methods of separating suspended or dissolved materials from a fluid stream such as a liquid or gaseous stream, comprising passing the fluid stream through the ultrafiltration membrane described above. |
| Author | KNOX, CAROL L |
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| RelatedCompanies | PPG INDUSTRIES OHIO, INC |
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| Snippet | The present invention is directed to ultrafiltration membranes comprising a microporous material, said microporous material comprising: (a) a polyolefin matrix... |
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| Title | Microporous material having filtration and adsorption properties and their use in fluid purification processes |
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