Polymer composition having heat-absorbing properties and improved colour properties

US9605129B2 · kind B2 · utility

Assignee

• Covestro Deutschland AG · DE

Inventors

• Alexander Meyer · Mülheim an der Ruhr, DE
• Gunther Stollwerck · Krefeld, DE
• Sven Gestermann
• Klaus Horn · Dortmund, DE
• Birgit Meyer Zu Berstenhorst · Moers, DE
• Joerg Reichenauer · Krefeld, DE
• Andrea Scagnelli · Bonate Sotto, IT
• Gianmaria Malvestiti · Trezzo sull'Adda, IT
• Massimo Tironi · Dalmine, IT

Key dates

• Filing date: Oct 29, 2014
• Grant date: Mar 28, 2017
• Expiry date: Oct 29, 2034

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2982
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

An embodiment of the present invention relates to a composition comprising a) at least one transparent thermoplastic material; b) at least one inorganic IR absorber comprising at least one boride compound present in an amount of from 0.0015 wt. % to 0.015 wt. %, calculated as solids content of boride in the total polymer composition; and c) at least one inorganic, nano-scale pigment present in an amount of from 0.0008 wt. % to 0.0035 wt. %, based on the total composition; and d) optionally further additives.