Cyanoethylpullulan
US4322524A · kind A · utility
16Cited by
4References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 10, 1980 |
| Grant date | Mar 30, 1982 |
| Priority date | — |
| Expiry date | Jul 10, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08B37/0018
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides a novel compound cyanoethylpullulan which is a cyanoethylation product of pullulan. Pullulan is readily cyanoethylated by the reaction with acrylonitrile in the presence of an alkali catalyst such as sodium hydroxide. The cyanoethylpullulan having a degree of cyanoethylation of at least 50% has various unique properties in the heat resistance, solubility in organic solvents, film-forming property, adhesive bonding to metals and the like in comparison with related cyanoethylated products such as cyanoethylcellulose and cyanoethylated polyvinyl alcohol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.