Manufacturing process for paper
US5129989A · kind A · utility
14Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 1991 |
| Grant date | Jul 14, 1992 |
| Priority date | — |
| Expiry date | Mar 15, 2011 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H17/28
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for manufacturing paper is characterized by the fact that there is introduced into the fibrous composition constituting the starting or raw material, at two or several points, particularly in the wet end, separately from one another, one (or several) cationic starch(es) and one (or several) anionic starch(es) other than a starch phosphate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.