Copolymers with non-linear optical properties and the use thereof

US5384378A · kind A · utility

Assignee

• BASF SE

Inventors

• Karl-Heinz Etzbach · Bischofswerda, DE
• Stefan Beckmann · Mannheim, DE
• Oskar Nuyken · Munich, DE
• Peter Strohriegl · Bayreuth, DE
• Harry Mueller · Rodenbach, DE

Key dates

• Filing date: Sep 21, 1993
• Grant date: Jan 24, 1995
• Expiry date: Sep 21, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F220/36
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Copolymers with non-linear optical properties, which contain or are composed of repeating units of the formula (I) ##STR1## where D is an electron donor, PA1 A is an electron acceptor, PA1 R.sup.1, R.sup.2, R.sup.3 and R.sup.4 can be the same as or different from one another, and are each H, alkyl, cycloalkyl, or R.sup.3 and R.sup.4 are each CN, NO.sub.2 or CHO, or R.sup.1 forms with R.sup.2, or R.sub.3 forms with R.sup.4, a fused-on ring, PA1 X is CH and/or N, PA1 m is an integer from 2 to 11, and PA1 R is hydrogen or methyl, and repeating units of at least one of the formulae (II), (III) and (IV) ##STR2## are suitable for the production of optical components.