Rapidly crystallizing polyphenylene sulphide compositions

US5057264A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Peter Bier · Krefeld, DE
• Klaus Reinking · Wermelskirchen, DE
• Ludwig Bottenbruch · Krefeld, DE
• Ernhard Tresper · Krefeld, DE

Key dates

• Filing date: Aug 1, 1989
• Grant date: Oct 15, 1991
• Expiry date: Aug 1, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L67/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Highly crystalline, rapidly crystallizing thermoplastic compositions containing: PA1 a) 70-99.5% by weight of a polyphenyl sulphide having a melt viscosity of at least 5 Pas (measured at 306.degree. C. and at a shear stress of 10.sup.2 Pa) and PA1 b) 0.5-30% by weight, relative to a) and b) of an oligomeric ester having at least two repeating ester monomeric units and a maximum molecular weight, expressed as a number average, of 6000.