Filters

Filters

8/30/2008

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“In chemistry and common usage, a filter is a device (usually a membrane or layer) that is designed to block certain objects or substances while letting others through. Filters are often used to remove harmful substances from air or water, for example to remove ai pollution, to make water drinkable, to prepare coffee. In domestic food and drink preparation where bulk solids are removed from liquids, this is often called a strainer. Filtrate is the liquid produced after filtering a suspension of a solid in a liquid. Filtrand (or Residue) is the solid residue remaining in the filter following filtration.”
Wikipedia: http://en.wikipedia.org/wiki/Filter_(chemistry) (12/16/2008)

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Carbon Nanotube Filters

Polyethylene Filters

UHMWPE Filters

Warning: Sometimes the older links no longer work. Go to the US Patent number search page, copy the Patent number into the search box and search. For the articles, use your browser to go the Journal site.

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Notes

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Review Articles

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US Patents

12/16/2008

7,465,685
Heatsealable filter material

7,465,393
Membrane filter with deaeration and method for the manufacture thereof

12/2/2008

7,459,083
Method for controlling fouling of a membrane filter

7,459,013
Chemical and particulate filters containing chemically modified carbon nanotube structures