Mixed cellulose esters
US5292876A · kind A · utility
2Cited by
5References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 20, 1990 |
| Grant date | Mar 8, 1994 |
| Priority date | — |
| Expiry date | Jul 20, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08B3/18
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed are novel species of cellulose acetate butyrates and propionates that have significant surface activity. The cellulose acetate butyrate/propionate contains 9-16 wt. % butyryl or propionyl, 6-11 wt. % acetyl, and 12-15 wt. % hydroxyl.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.