Diagnostic strips
US4649026A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 1985 |
| Grant date | Mar 10, 1987 |
| Priority date | — |
| Expiry date | Nov 8, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C2001/0471
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of preparing a diagnostic strip coated with agarose which comprises preparing a roll of web material so that an aqueous silver halide emulsion can adhere thereto on one side thereof, but which does not have a gelatin or any other proteinaceous layer on the prepared side then coating on the prepared side of the web by a continuous web coating method a layer of an aqueous agarose solution at a temperature of at least 40.degree. C., drying the coated agarose layer to provide a dried layer thickness of from 0.1 to 100 .mu.m which is dry to touch, but which comprises 10 to 50% w/w solids and cutting the coated web into strips of the required size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.