Cellulose ester compositions and process for the preparation thereof
US5142034A · kind A · utility
11Cited by
22References
75Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 1990 |
| Grant date | Aug 25, 1992 |
| Priority date | — |
| Expiry date | Apr 16, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08B3/24
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Process for reducing the degree of substitution of cellulose esters employing Lewis acids as solvolysis promoters is disclosed. Novel low degree of substitution cellulose esters produced by the invention process are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.