Process for repulping of fiber-latex binder composites
US5133833A · kind A · utility
2Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1991 |
| Grant date | Jul 28, 1992 |
| Priority date | — |
| Expiry date | Feb 26, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/64
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Disclosed herein is a process for repulping or reclaiming fibers from latex-impregnated materials such as latex impregnated papers. The process involves treating the latex-impregnated material with an alkali solution for a sufficient period of time to separate the latex polymer from the fibers. This is followed by a washing step to rinse away the latex polymer thereby leaving the reclaimed fibers for subsequent use such as the formation of new paper stock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.