Plastic molded body containing a fluorescent dye

US7497972B2 · kind B2 · utility

Assignee

• ROEHM GMBH & CO. KG · DE

Inventors

• Hans Lichtenstein · Reinheim, DE
• Guenther Ittmann · Groß-Umstadt, DE
• Eduard Albrecht · Frankfurt, DE

Key dates

• Filing date: Jul 25, 2003
• Grant date: Mar 3, 2009
• Expiry date: Feb 12, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K3/22
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to a moulding composed of a plastics matrix composed of a transparent plastic, comprising a soluble fluorescent dye and a scattering agent whose refractive-index difference from the plastics matrix is +/− from 0.003 to 0.2, characterized in that a white pigment whose refractive-index difference from the plastics matrix is from +0.4 to 1.5 is also present, at a concentration of from 0.001 to 0.1% by weight.