Laser-markable polymer moulding compositions

US5840791A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Herbert Magerstedt · Moers, DE
• Frank Gerling · Düsseldorf, DE

Key dates

• Filing date: May 15, 1997
• Grant date: Nov 24, 1998
• Expiry date: May 15, 2017

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S430/146
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Laser-markable thermoplastic moulding compositions are disclosed which contain PA1 thermoplastic polymers, PA1 boric anhydride, and optionally, PA1 fillers and reinforcing materials, PA1 flame retardant additives, PA1 elastomer modifiers, PA1 antimony trioxide, and PA1 copper(II) pyrophosphate hydrate.