Polymer composition with heat-absorbing properties

US9651712B2 · kind B2 · utility

Assignee

• Covestro Deutschland AG · DE

Inventors

• Michael Erkelenz · Duisburg, DE
• Rolf Wehrmann · Krefeld, DE
• Anke Boumans · Goch, DE

Key dates

• Filing date: Oct 15, 2012
• Grant date: May 16, 2017
• Expiry date: Oct 15, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K2201/011
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to polymer compositions for the production of mouldings, in particular spectacles and eye-protection equipment, which comply with the provisions of EN 169 (welder protection standard) and EN 1836/2005 (signal light detection). The compositions and mouldings are in particular processable at temperatures above 265° C., recyclable and have a notched impact strength of at least 65 kJ/cm2, and they comply with the required optical standards mentioned above.