Regioselectively substituted cellulose esters produced in a halogenated ionic liquid process and products produced therefrom
US9777074B2 · kind B2 · utility
3Cited by
41References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2015 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Sep 18, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/40
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to novel compositions comprising regioselectively substituted cellulose esters. One aspect of the invention relates to processes for preparing regioselectively substituted cellulose esters from cellulose dissolved in ionic liquids. Another aspect of the invention relates to the utility of regioselectively substituted cellulose esters in applications such as protective and compensation films for liquid crystalline displays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.