Filler for paper making process
US8252143B2 · kind B2 · utility
1Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2005 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | Nov 14, 2025 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H17/26
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a filler comprising clay and cellulose derivative having a degree of substitution of net ionic groups up to about 0.65.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.