Process for the production of thermoplastic synthetic materials of chemically modified protein and plastic shaping materials of chemically modified protein and a chemical plasticizer

US4002485A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Klaus-Dieter Hammer · Mainz, DE
• Wolfgang Klendauer
• Max Bytzek · Naurod, DE

Key dates

• Filing date: Oct 3, 1975
• Grant date: Jan 11, 1977
• Expiry date: Oct 3, 1995

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S530/832
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

This invention relates to a process for the production of a thermoplastic synthetic material of chemically modified protein which comprises mixing an aqueous alkaline protein solution with an aqueous solution of a tetrafunctional, doubly unsaturated compound of the general formula ##STR1## in which R.sub.1 and R.sub.2 are hydrogen or an alkyl group with 1 to 6, preferably 1 to 3, carbon atoms, and PA1 R.sub.3 is the group --(CH.sub.2).sub.n --, n being an integer from 1 to 8, or the group ##STR2## in which R.sub.4 is an alkyl group with 1 to 18 carbon atoms, SUBJECTING THE LIQUID MIXTURE TO A DWELL TIME, CAUSING A PRECIPITATING LIQUID TO ACT UPON THE LIQUID, VISCOUS MIXTURE, FREEING THE FORMED PRECIPITATE FROM EXCESS LIQUID, DRYING, MIXING THE PRECIPITATE WITH AN AT LEAST BIFUNCTIONAL, SATURATED, ORGANIC COMPOUND, AND SUBJECTING THE MIXTURE TO HEAT AND PRESSURE. The invention also relates to a plastic material of chemically modified protein.