Liquid absorbing and immobilizing packet and paper therefor
US4748069A · kind A · utility
45Cited by
5References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 20, 1986 |
| Grant date | May 31, 1988 |
| Priority date | — |
| Expiry date | Jun 20, 2006 |
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. 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 having the uncoated portions of the starch paper to degrade in solutions in which the dot matrix coating is insoluble. A paper product including a paper which is degradable in liquid and a dot matrix pattern of material on the paper for causing portions of the paper to adhere to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.