EP0199205A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Sealed reagent matrix
Assignee: Bayer Corp
•
Filing: 1986-04-10
•
Granted: —
•
Expires: 2006-04-10
Abstract
Abstract At least one edge of each reagent matrix on a reagent test device is sealed using a wax/adhesive mixture such that liquid present in the reagent matrix material is retained therein and prevented from running over into another reagent matrix area present on the same reagent test device.
Inventors
- 👤 Sultan M. Siddiqi
- 👤 Patrick Stemm
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 14:09
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/52; G01N33/521; G01N31/00; G01N31/22
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
70 words
A reagent test device comprising multiple reagent carrier matrices attached in spaced relationship to one side of the substrate, said reagent carrier matrices being impregnated with a wax/adhesive admixture ili" an amount sufficient to seal at least one facing edge on each carrier matrix to prevent liquid runover between adjoining spaced carrier matrices, said wax/adhesive admixture having a softening point greater than 70°C and a melting point greater than 80°C.
Claim 2
Dependent Claim
70 words
A reagent test device comprising multiple reagent carrier matrices attached in spaced relationship to one side of the substrate, said reagent carrier matrices being impregnated with a wax/adhesive admixture ili" an amount sufficient to seal at least one facing edge on each carrier matrix to prevent liquid runover between adjoining spaced carrier matrices, said wax/adhesive admixture having a softening point greater than 70°C and a melting point greater than 80°C.
Claim 3
Dependent Claim
14 words
The test device of claim 1 in which the carrier matrix is filter paper.
Claim 4
Dependent Claim
12 words
The test device of claim 1 in which the substrate is polystyrene.
Claim 5
Dependent Claim
27 words
The test device of any of claims 1 to 3 in which the wax and adhesive are present in the admixture in thematic of 1:1 and 1:4.
Claim 6
Dependent Claim
28 words
The test device of any of claims 1 to 4 in which the water repellent material is an admixture of wax and adhesive in the ratio of 1:3.
Claim 7
Dependent Claim
74 words
The process of sealing at least one facing edge of each reagent matrix area on a reagent test device containing multiple carrier matrices to substantially eliminate runover between adjoining spaced carrier matrices, which comprises applying an admixture of wax and adhesive as a hot-melt along each edge of reagent carrier matrix material which is to be sealed, said wax/adhesive admixture having a softening point greater than 70°C and a melting point greater than 80°C.
Claim 8
Dependent Claim
74 words
The process of sealing at least one facing edge of each reagent matrix area on a reagent test device containing multiple carrier matrices to substantially eliminate runover between adjoining spaced carrier matrices, which comprises applying an admixture of wax and adhesive as a hot-melt along each edge of reagent carrier matrix material which is to be sealed, said wax/adhesive admixture having a softening point greater than 70°C and a melting point greater than 80°C.
Claim 9
Dependent Claim
13 words
The process of claim 6 in which the carrier matrices are filter paper.
Claim 10
Dependent Claim
11 words
The process of claim 6 in which the substrate is polystyrene.
Claim 11
Dependent Claim
29 words
The process of claim 6 in which the carrier matrix material is filter paper which is laminated to polystyrene substrate prior to the time of applying the wax/adhesive admixture.
References Cited (Backward Citations)
US3723064A
Cited
US3996006A
Cited
EP0013156A1
Cited
EP0045476A1
Cited
US4482583A
Cited
EP0126357A1
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.