Liquid absorbing and immobilizing packet containing a material for treating the absorbed liquid
US4853266A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 14, 1988 |
| Grant date | Aug 1, 1989 |
| Priority date | — |
| Expiry date | Mar 14, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24934
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A packet for absorbing and immobilizing a liquid including an envelope which is degradable in the liquid and a liquid absorbing and immobilizing material in the envelope. One or more of a biocide, fungicide, antimicrobial, bacteriostat, sanitizer, disinfectant, scent or deodorizer is added to the liquid absorbing and immobilizing material for treating the liquid which is absorbed. The envelope has a dot matrix coating of heat-fusible material on degradable starch paper. The dot matrix coating permits heat-sealing of the envelope leaving the uncoated portions of the starch paper to degrade in solutions in which the dot matrix coating is insoluble.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.