Glass matt reinforced thermoplastics suitable for the production of paintable parts and parts produced therefrom

US5888913A · kind A · utility

Assignee

• Borealis AG · AT

Inventors

• Wolfgang Penz · Linz, AT
• Wolfram Stadlbauer · Linz, AT
• Wilfried Blauhut · Linz, AT
• Wolfgang Stockreiter · Puchenau, AT
• Ernst Zopf · St. Georgen, AT
• Manfred Lehner · Pasching, AT

Key dates

• Filing date: Mar 5, 1997
• Grant date: Mar 30, 1999
• Expiry date: Mar 5, 2017

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T442/2992
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Glass matt reinforced thermoplastics suitable for the production of paintable parts, comprising PA1 a) a thermoplastic matrix polymer of a viscosity under processing conditions corresponding to a melt flow index (MFI 230/2.16) of polypropylene of at least 250 g/10 min and PA1 b) one or more glass matts which, upon heating, bring about an expansion of the glass matt reinforced thermoplastics to at least 2.5 times the original thickness, optionally in combination with PA1 c) an addition of fine-particle, mineral fillers.