Crosslinked polymer particles containing a fluorescent dye

US5710197A · kind A · utility

Assignee

• BASF SE

Inventors

• Wolfgang Fischer · Meerbusch, DE
• Andreas Deckers · Flomborn, DE
• Norbert Güntherberg · Speyer, DE
• Ekkehard Jahns · Weinheim, DE
• Sylke Haremza · Neckargemünd, DE
• Werner Ostertag · Havelsee, DE
• Helmut Schmidt · Riegelsberg, DE

Key dates

• Filing date: Jul 13, 1995
• Grant date: Jan 20, 1998
• Expiry date: Jul 13, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K11/06
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Fluorescent pigments contain essentially a polymer matrix based on polymethyl methacrylate and a nonpolar fluorescent dye from the coumarin or perylene series, the polymer matrix being a crosslinked polymethacrylate or polyacrylate prepared by suspension polymerization.