Preparation of protein films
US4548736A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 1983 |
| Grant date | Oct 22, 1985 |
| Priority date | — |
| Expiry date | Aug 29, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2389/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method to prepare protein films from protein gels is disclosed which utilizes the process of osmosis to remove excess fluid from protein gels without destroying the structural integrity of the protein. The method is conducted by first preparing a protein gel in a solvent, then contacting the gel with one side of a semipermeable membrane permeable to the solvent in which the gel was prepared, next adding a concentrated polymer solution to the other side of the membrane which membrane is impermeable to the polymer so as to cause movement of solvent from the gel, through the membrane, and into the polymer solution, and thus removing solvent from the gel for a period of time sufficient to contract the gel to a desired thickness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.