Gas separation: processes – Filtering
Reexamination Certificate
2006-06-01
2009-10-20
Greene, Jason M (Department: 1797)
Gas separation: processes
Filtering
C095S285000, C055S522000, C055S523000, C055S524000, C055S528000, C210S650000, C210S503000, C210S510100
Reexamination Certificate
active
07604687
ABSTRACT:
A gas filtration media comprises a microporous membrane. The microporous membrane includes an ultrahigh molecular weight polyethylene (UHMWPE), an inorganic material, wherein the ratio of inorganic material to polymer is in the range of 4:1 to 1:4, and less than 30% by weight of the membrane being a processing oil.
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Demeuse Mark T.
Froelich Karl
Miller Eric H.
Yaritz Joseph G.
Daramic LLC
Greene Jason M
Hammer & Associates, P.C.
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