Precipitated calcium carbonate-cationic starch binder as retention aid system for papermaking
US4892590A · kind A · utility
86Cited by
4References
4Claims
0Family size
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Key dates
| Filing date | Jun 3, 1988 |
| Grant date | Jan 9, 1990 |
| Priority date | — |
| Expiry date | Jun 3, 2008 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H17/675
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A two component binder system comprising a highly dispersible, high specific surface area precipitated calcium carbonate (colloidal PCC) and a cationic starch, especially a cationic potato starch, for improving filler retention, opacity and strength during papermaking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.