Methods of preparing polysaccharide sheets for esterification
US8920520B2 · kind B2 · utility
30Cited by
12References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2012 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Oct 21, 2032 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H17/14
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Processing of cellulose, and more particularly, fiber opening and downstream processing and chemistry are provided. A process includes moistening a cellulose sheet stock to a water content in a range from about 20% to about 50%, attriting the moistened cellulose sheet to a wet pulp, flash drying the wet pulp to a floccule of cellulose having a moisture content from about 4% to about 8%, and esterifying the floccule of cellulose to provide a cellulose ester product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.