Azo dye polymers

US5434231A · kind A · utility

Assignee

• BASF SE

Inventors

• Matthias Wiesenfeldt · Mutterstadt, DE
• Sabine Gruettner-Merten · Mutterstadt, DE
• Ruediger Sens · Mannheim, DE
• Karl-Heinz Etzbach · Bischofswerda, DE
• Heike Kilburg · Speyer, DE

Key dates

• Filing date: Jun 24, 1993
• Grant date: Jul 18, 1995
• Expiry date: Jun 24, 2013

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F1/3617
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Azo dye polymers useful in nonlinear optics contain as characteristic monomer units radicals of the formulae I, II, III and IV ##STR1## where D is the radical of a heterocyclic diazo component, PA0 R.sup.1 and R.sup.2 are each hydrogen, C.sub.1 -C.sub.6 -alkyl or substituted or unsubstituted C.sub.1 -C.sub.6 -alkoxy, and R.sup.2 may also be C.sub.1 -C.sub.4 -alkanoylamino, PA0 R.sup.3 is hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.5 -C.sub.7 -cycloalkyl or C.sub.3 -C.sub.4 -alkenyl, PA0 R.sup.4 is hydrogen, deuterium, methyl, trideuterated methyl or chlorine, PA0 R.sup.5 is hydrogen or deuterium, PA0 Y.sup.1 and Y.sup.2 are each substituted or unsubstituted C.sub.2 -C.sub.10 -alkylene, PA0 W is oxygen, imino or C.sub.1 -C.sub.4 -alkylimino, and PA0 X is hydroxyl, substituted or unsubstituted C.sub.1 -C.sub.6 -alkoxy, phenoxy, amino or mono- or di(C.sub.1 -C.sub.4 -alkyl)amino, and have an average molecular weight of from 1,000 to 100,000.