Treatment of water damaged cellulosic materials
US4543734A · kind A · utility
7Cited by
2References
20Claims
0Family size
Inventor
Key dates
| Filing date | Mar 19, 1984 |
| Grant date | Oct 1, 1985 |
| Priority date | — |
| Expiry date | Mar 19, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B5/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for treating water damaged cellulosic materials, particularly books, is provided, which process comprises freezing the water throughout the extent of the cellulosic materials and subliming the water from the materials to dryness at temperatures below freezing. The process can provide effective fumigation of cellulosic materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.