Gas separation: apparatus – Solid sorbent apparatus – Plural diverse separating means
Reexamination Certificate
2004-09-09
2009-08-11
Lawrence, Frank M (Department: 1797)
Gas separation: apparatus
Solid sorbent apparatus
Plural diverse separating means
C096S135000, C096S154000, C442S122000, C002S457000
Reexamination Certificate
active
07572322
ABSTRACT:
The invention relates to an adsorption filter material (1) that provides protection against chemical toxins, chemical weapons and pollutants, with a preferably multi-layer composite construction (2). The layer construction (2) includes at least one planar support layer (3) with two opposing sides (3′, 3″) and an adsorption layer (4), provided on the support layer (3) made from a material which adsorbs chemical toxins, the surface of at least one of the both sides (3′and/or3″) of the support layer (3) being modified by plasma treatment. The surface properties, in particular the surface finish and the surface reactivity can be adjusted and optimised to match the application by means of the plasma treatment.
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McCullough et al. “A comparison of standard methods for measuring water vapour permeability of fabrics” inMeas. Sci. Technology[Measurements Science and Technology] 14, 1402-1408, Aug. 2003, pp. 1402-1408.
Din En 31 092: 1993 of Feb. 1994 (“Textiles —Physiological Effects, Measurement of Heat and Water Vapor Transmission Resistance under steady state Conditions [sweating guarded-hotplate test]”, 9 pgs.
Bohringer Bertram
Heinrich Peter
Moskopp Michael
Stoll Thomas
Blucher GmbH
Lawrence Frank M
Woodard Emhardt Moriarty McNett & Henry LLP
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