Adsorbent fibrous nonwoven composite structure

Details Adsorbent fibrous nonwoven composite structure Adsorbent fibrous nonwoven composite structure

1995-03-24

1996-11-05

Ryan, Patrick J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428219, 428280, 428281, 428283, 428284, 428296, 428408, 55524, 55DIG44, 264113, 264121, 264517, B32B 516, A24D 304

Patent

active

055716040

ABSTRACT:
Disclosed is an adsorbent fibrous nonwoven structure composed of (1) a matrix of pulp fibers having a first exterior surface and a second exterior surface; and (2) 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.

REFERENCES:
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patent: 5074321 (1991-12-01), Gentry et al.
patent: 5137034 (1992-08-01), Perfetti et al.
patent: 5161686 (1992-11-01), Weber et al.
patent: 5271419 (1993-12-01), Arzonico et al.
patent: 5360023 (1994-11-01), Blakley et al.
Prior Sale of Carbon-Containing Paper Sheets.
The Taryton.COPYRGT. Cigarette Filter.

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