Hydrolysis-resistant thermoplastic molding composition comprising high molecular weight polybutylene terephthalatepolyester and a dicarboxylic acid salt

US4581398A · kind A · utility

Assignee

• Huels Aktiengesellschaft · DE

Inventors

• Michael Droscher · Dorsten, DE
• Horst Heuer · Haltern, DE

Key dates

• Filing date: May 29, 1984
• Grant date: Apr 8, 1986
• Expiry date: May 29, 2004

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/42
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Hydrolysis-resistant, thermoplastic molding compositions are made from high-molecular weight, linear polybutylene terephthalate and 0.1-10 mole %, based on the amount of the dicarboxylic acid component of the polyester, of a salt of Formula (A) EQU [(-O.sub.3 S).sub.x R--CO.sub.2.sup.-).sub.2 ]M, (A) wherein PA0 M is an alkali or alkaline earth metal cation, PA0 R is an aromatic or cycloaliphatic residue or an aliphatic residue of 2-20 carbon atoms in the carbon chain, and PA0 x is 0 or 1.