Patent EP0037012A2 successfully refreshed from Google Patents.
Patent EP0322882A2 successfully refreshed from Google Patents.
EP0322882A2
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EP
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Integral multilayer analytical element
Assignee: Fujifilm Holdings Corp
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Filing: 1988-12-28
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Granted: —
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Expires: 2008-12-28
Abstract
Abstract An integral multilayer analytical element comprising a reagent layer containing an indicator reagent composition capable of producing a detectable change corresponding to an analyte and a porous spreading layer composed of a fibrous fabric superposed on the reagent layer, wherein the yarn of said fabric comprises fibers having roughed surface, and an integral multilayer analytical element comprising a water-absorptive layer containing a hydrophilic polymer and a porous spreading layer composed of a fibrous fabric containing an indicator reagent composition capable of producing a detectable change corresponding to an analyte superposed on the water-absorptive layer, wherein the yarn of said fabric comprises fibers having roughed surface. The roughing is carried out, for example, by alkali etching.
Inventors
- 👤 Fuminori C/O Fuji Photo Film Co.Ltd. Arai
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 22:55
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/52; G01N33/525
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
54 words
In an integral multilayer analytical element comprising a reagent layer containing an indicator reagent composition capable of producing a detectable change corresponding to an analyte and a porous spreading layer composed of a fibrous fabric superposed on the reagent layer, the improvement comprising that the yarn of said fabric comprises fibers having roughed surface.
Claim 2
Dependent Claim
54 words
In an integral multilayer analytical element comprising a reagent layer containing an indicator reagent composition capable of producing a detectable change corresponding to an analyte and a porous spreading layer composed of a fibrous fabric superposed on the reagent layer, the improvement comprising that the yarn of said fabric comprises fibers having roughed surface.
Claim 3
Dependent Claim
25 words
The analytical element of claim 1 wherein said yarn is filament yarn composed of long fibers and said fabric is woven fabric or knitted fabric.
Claim 4
Dependent Claim
21 words
The analytical element of claim 1 wherein said yarn is spun yarn, and said fabric is woven fabric or knitted fabric.
Claim 5
Dependent Claim
22 words
The analytical element of claim 1, claim 2 or claim 3 wherein said reagent layer is provided on a light-transmissive water-impermeable support.
Claim 6
Dependent Claim
25 words
The analytical element of claim 1, claim 2 or claim 3 wherein said reagent layer is provided on a light-reflective or opaque and water-impermeable support.
Claim 7
Dependent Claim
58 words
In an integral multilayer analytical element comprising a water-absorptive layer containing a hydrophilic polymer and a porous spreading layer composed of a fibrous fabric containing an indicator reagent composition capable of producing a detectable change corresponding to an analyte superposed on the water-absorptive layer, the improvement comprising that the yarn of said fabric comprises fibers having roughed surface.
Claim 8
Dependent Claim
58 words
In an integral multilayer analytical element comprising a water-absorptive layer containing a hydrophilic polymer and a porous spreading layer composed of a fibrous fabric containing an indicator reagent composition capable of producing a detectable change corresponding to an analyte superposed on the water-absorptive layer, the improvement comprising that the yarn of said fabric comprises fibers having roughed surface.
Claim 9
Dependent Claim
25 words
The analytical element of claim 6 wherein said yarn is filament yarn composed of long fibers and said fabric is woven fabric or knitted fabric.
Claim 10
Dependent Claim
21 words
The analytical element of claim 2 wherein said yarn is spun yarn, and said fabric is woven fabric or knitted fabric.
Claim 11
Dependent Claim
22 words
The analytical element of claim 5, claim 6 or claim 7 wherein said reagent layer is provided on a light-transmissive water-impremeable support.
Claim 12
Dependent Claim
25 words
The analytical element of claim 5, claim 6 or claim 7 wherein said reagent layer is provided on a light-reflective or opaque and water-impermeable support.
References Cited (Backward Citations)
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