Multilayer test device having fusion bonding attachment layer

Details Multilayer test device having fusion bonding attachment layer Multilayer test device having fusion bonding attachment layer

1992-12-30

1994-07-19

Housel, James C.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Calorimeter

422 55, 436169, 436170, 435805, 435970, G01N 2177

Patent

active

053307151

ABSTRACT:
A unitized multilayer dry reagent analytical chemistry test structure and device and method of fabricating such device is described. The device includes two or more contiguous layers of absorbent or porous paper or polymeric material, at least one of which is incorporated with a test reagent composition, the layers attached to each other with intermediate porous attachment layers by fusion bonding. When the device is contacted with the fluid being tested the attachment layers allow the free flow of such fluid from one layer to the next.

REFERENCES:
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patent: 4806312 (1989-02-01), Greenquist
patent: 5049358 (1991-09-01), Lau
patent: 5096836 (1992-03-01), Macho et al.
patent: 5118472 (1992-06-01), Tanaka et al.
patent: 5162238 (1992-11-01), Eikmeier et al.
patent: 5188966 (1993-02-01), Eikmeier et al.

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