Method of making an adsorbent fibrous nonwoven composite structu

Details Method of making an adsorbent fibrous nonwoven composite structu Method of making an adsorbent fibrous nonwoven composite structu

1995-05-30

1997-09-30

Dixon, Merrick

Plastic and nonmetallic article shaping or treating: processes

With printing or coating of workpiece

Coating or impregnating workpiece before molding or shaping...

264113, 264121, 264518, 162109, 162115, 162125, 162129, 162130, 162136, 1621681, 162158, 1621811, 162184, 162201, 162204, 427331, 427355, 4273899, B29C 6700

Patent

active

056723067

ABSTRACT:
Disclosed is an adsorbent fibrous nonwoven structure composed of a matrix of pulp fibers having a first exterior surface and a second exterior surface; and an adsorbent material integrated into the pulp fiber matrix so that the concentration of adsorbent material adjacent the first exterior surface of the nonwoven structure is at least about 60 percent, as determined by optical image analysis, and the concentration of adsorbent material adjacent the second exterior surface is less than about 40 percent, as determined by optical image analysis. This adsorbent nonwoven structure provides useful strength and low-lint characteristics. The fibrous nonwoven structure of the present invention may be laminated together or to surfaces of other materials.

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Prior Sale of Carbon-Containing Paper Sheets.
The Taryton;.RTM. Cigarette Filter.

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