Treatment of cellulosic materials
US4860685A · kind A · utility
19Cited by
6References
13Claims
0Family size
Inventor
Key dates
| Filing date | Mar 9, 1987 |
| Grant date | Aug 29, 1989 |
| Priority date | — |
| Expiry date | Mar 9, 2007 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H25/18
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A treatment system for cellulosic materials is provided which is particularly adapted for the manual treatment of single pages of books, as well as documents, engineering drawings, maps, and works of art on paper. The system includes a deacidification, self-pressurized solution comprising a deacidification agent, a lower alcohol solvent for the agent, a diluent, and a propellant; delivery apparatus for shipping, storing, and spraying the solution; and a novel cleaning solution for use in conjunction with the deacidification solution and apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.