Molding compositions based on high molecular weight polyether ester amides

US4555550A · kind A · utility

Assignee

• Chemische Werke Huels, A.G. · DE

Inventors

• Michael Droescher · Dorsten, DE
• Salih Mumcu · Marl, DE
• Klaus Burzin · Marl, DE
• Christian Gerth · Detmold, DE
• Horst Heuer · Haltern, DE

Key dates

• Filing date: Feb 25, 1985
• Grant date: Nov 26, 1985
• Expiry date: Feb 25, 2005

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/29
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Improved molding compositions based on high-molecular polyether ester amides are obtained by heating at 180.degree.-250.degree. C. a melt containing a mixture of PA0 A. a polyether ester amide having a relative solution viscosity .eta..sub.rel of at least 1.5; and PA0 B. 0.05-1.5 parts by weight, based on 100 parts by weight of the molding composition, of a cyclic, trimerized isophorone diisocyanate or an oligomer thereof having a degree of oligomerization of 2-5 and an isocyanate functionality of 3-7.