Use of nanocrystaline cellulose and polymer grafted nanocrystaline cellulose for increasing retention in papermaking process
US10132040B2 · kind B2 · utility
1Cited by
76References
6Claims
0Family size
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Key dates
| Filing date | Jul 5, 2016 |
| Grant date | Nov 20, 2018 |
| Priority date | — |
| Expiry date | Oct 20, 2036 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H23/22
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Methods and compositions for improving the characteristics of paper substrates are disclosed. The methods involve adding to a paper substrate an NCC-polymer. NCC-polymers have unique chemical properties which result in improvements in wet strength, dry strength and drainage retention properties of the paper substrates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.