Method of modifying nanofibrillar cellulose composition
US9809655B2 · kind B2 · utility
4Cited by
2References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2014 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | Jun 24, 2034 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H23/22
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method for modifying nanofibrillar cellulose composition, comprising—preparing fibrous dispersion of ionically charged nanofibrillar cellulose (NFC), and—applying heat treatment at a temperature of at least 90° C. to the fibrous dispersion until the viscosity of NFC starts to decrease. The viscosity of the heat-treated NFC is reversible by applying shear forces to the NFC.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.