Fluorescent maleimides and uses thereof

US6258954A · kind A · utility

Assignee

• Ciba Specialty Chemicals Corporation · US

Inventors

• Kazuhiko Kunimoto · Kawanishi, JP
• Junji Otani · Kobe, JP
• Kunihiko Kodama · Takarazuka, JP
• Hiroshi Yamamoto · Sagamihara, JP
• Patrick Verhoustraeten · Lörrach, DE
• Sonia Megert · Ueken, CH
• Adalbert Braig · Weil am Rhein, DE

Key dates

• Filing date: Aug 22, 2000
• Grant date: Jul 10, 2001
• Expiry date: Aug 22, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2211/1092
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to compounds of formula I ##STR1## provided that R.sub.1 and R.sub.2 not simultaneously stand for phenyl, the use thereof in, for example, electroluminescent devices and as void detection compounds.