Process for reducing discoloration and/or tackiness in processing waste paper fibers
US4710267A · kind A · utility
24Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1985 |
| Grant date | Dec 1, 1987 |
| Priority date | — |
| Expiry date | Mar 19, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/64
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Waste paper fibers containing tacky impurities processed for the preparation of recycle paper fiber products in the presence of a surface-active tertiary amine or tertiary or quaternary ammonium compound, thereby reducing discoloration and tackiness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.