Laser-absorbing molding compositions with low carbon black contents

US6916866B2 · kind B2 · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Detlev Joachimi · Krefeld, DE
• Thomas Braig · Mülheim an der Ruhr, DE
• Martin Döbler · Düsseldorf, DE
• Frank Krause · Kleve, DE
• Frederik Thoma · Kamp-Lintfort, DE

Key dates

• Filing date: Oct 18, 2002
• Grant date: Jul 12, 2005
• Expiry date: Jul 24, 2023

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29C66/939
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

The present invention relates to natural-colored and pigmented thermoplastic molding compositions and molded parts fabricated therefrom that are laser-absorbing at least in partial spectral regions of the wavelength range from 700 to 1200 nm and that can be welded by laser beam welding and to molded parts that are transparent or translucent to laser light.