Paper recycling aid
US4915783A · kind A · utility
0Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1988 |
| Grant date | Apr 10, 1990 |
| Priority date | — |
| Expiry date | Dec 27, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/64
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for recycling waste paper is disclosed in which an alkali metal Kurrol's salt, preferably potassium Kurrol's salt, is added to the process water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.