Modified filler composition, pulp and paper using same
US8980058B2 · kind B2 · utility
1Cited by
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22Claims
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Key dates
| Filing date | Jan 21, 2014 |
| Grant date | Mar 17, 2015 |
| Priority date | — |
| Expiry date | Jan 21, 2034 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H17/67
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A modified filler composition used in papermaking is provided. The modified filler composition contains microfibrillated cellulose, and filler having negative charge, and a cationic polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.