Methods of making a opaquely dark colored molding composition

US8378021B2 · kind B2 · utility

Assignee

• Evonik Röhm GmbH · DE

Inventors

• Klaus Schultes · Wiesbaden, DE
• Ernst Becker · Bensheim, DE
• Ursula Golchert · Dieburg, DE
• Elisabeth Clamer · Offenbach, DE

Key dates

• Filing date: Oct 25, 2005
• Grant date: Feb 19, 2013
• Expiry date: Oct 31, 2026

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L25/12
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to subduedly colored (brown, gray, black, green), infrared reflecting PMMA compounds which can be applied to other plastic compounds as an IR barrier layer.