Water-absorbing material and uses thereof
US11013823B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2016 |
| Grant date | May 25, 2021 |
| Priority date | — |
| Expiry date | Jul 17, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29B9/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A chromogenic absorbent material for detecting a detectable substance in a water-containing medium, such as animal urine, is provided. The detectable substance may be indicative of a disease or condition, and the water-containing medium may be an excretion, blood, plasma, an aqueous solution or a solid impregnated with an aqueous solution. The chromogenic absorbent material may include a trigger agent, a chromogenic indicator convertible into a chromogenically active substance in the presence of the trigger agent and the detectable substance, and an absorptive material which is porous, for absorbing the water-containing medium. The absorptive material may include a water-absorbing polysaccharide providing absorptive properties to the chromogenic absorbent material. The trigger agent, the chromogenic indicator and the detectable substance are preferably unreactive to the absorptive material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.