Process for the production of shaped articles of plastic material composed of chemically modified protein

US4002710A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Klaus-Dieter Hammer · Mainz, DE
• Walter Busch
• Wolfgang Klendauer

Key dates

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

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F289/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

This invention relates to a process for the production of a shaped article of a plastic material of chemically modified protein, which comprises mixing an alkaline aqueous protein solution with an aqueous solution of an organic tetrafunctional, 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 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, SPINNING THE RESULTING VISCOUS LIQUID READY FOR SPINNING BY MEANS OF A SHAPING DIE INTO A PRECIPITATING LIQUID, WASHING THE SHAPED ARTICLE WITH A WASHING LIQUID, CAUSING AN AQUEOUS SOLUTION OF AN ORGANIC, SATURATED, AT LEAST BIFUNCTIONAL COMPOUND TO ACT ON THE ARTICLE, HEATING THE ARTICLE, OPTIONALLY CAUSING PLASTICIZER LIQUID TO ACT ON IT, AND DRYING.