Mineral filled moulding compounds based on polyalkylene-terephthalate

US6268418A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Herbert Magerstedt · Moers, DE
• Georg Heger · Krefeld, DE
• Karsten-Josef Idel · Krefeld, DE
• Friedemann Paul · Bensberg, DE

Key dates

• Filing date: Jul 29, 1996
• Grant date: Jul 31, 2001
• Expiry date: Jul 29, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L69/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Thermoplastic moulding compounds containing PA1 A) 30 to 99 parts by wt. of polyalkyleneterephthalate PA1 B) 0 to 50 parts by wt. of polycarbonate PA1 C) 0 to 30 parts by wt. of a graft polymer PA1 D) 0.1 to 20 parts by wt. of an oligomeric phosphorus compound of the formula (Ia) ##STR1## PA1 or 0.1 to 20 parts by weight of a mixture of an oligomeric phosphorus compound of the formula (Ia) and a phosphorus compound of the formula (Ib) ##STR2## PA1 where the amount of phosphorus compound of the formula (Ib) in the mixture of phosphorus compounds is 1 to 50% by weight (relative to 100% by weight of phosphorus compound of the formula (Ia) and (Ib), PA1 E1) 1 to 60 parts by wt. of mineral filler and PA1 E2) 0 to 30 parts by wt. of fillers and reinforcing materials which differ from E1).