Process for producing thermoplastic molding compositions from polycondensation resins and aqueous latexes

US4904733A · kind A · utility

Assignee

• Huels Aktiengesellschaft · DE

Inventors

• Christian Gerth · Detmold, DE
• Michael Droscher · Dorsten, DE

Key dates

• Filing date: Dec 16, 1987
• Grant date: Feb 27, 1990
• Expiry date: Dec 16, 2007

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L101/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to a process for the production of molding compositions from a thermoplastic polycondensation resin susceptible to degradation at high temperature in the presence of H.sub.2 O, to which is admixed a second synthetic resin, present as an aqueous latex, at temperatures in the range of 150.degree.-300.degree. C. and under a pressure in the range of 1-100 bar under the effect of high shear forces, for a time sufficient to provide the desired molding composition without substantially degrading the polycondensation resin.