Method for the preparation of transparent cross-linked polymers from grain flour
US6045868A · kind A · utility
7Cited by
10References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 6, 1999 |
| Grant date | Apr 4, 2000 |
| Priority date | — |
| Expiry date | Jan 6, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08H1/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method wherein grain flour proteins are cross-linked with aldehydes and bleached with a bleaching agent to form cross-linked transparent polymers is described. The process uses ethanol and water for the extraction at acid or basic pH's and optionally heating with or without a reducing agent to provide the polymers to be bleached and cross-linked. The polymers are particularly useful as films for packaging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.