Polyesters containing nonlinear-optical chromophores, and the use thereof

US5401612A · kind A · utility

Assignee

• BASF SE

Inventors

• Karl-Heinz Etzbach · Bischofswerda, DE
• Ruediger Sens · Mannheim, DE
• Stefan Beckmann · Mannheim, DE

Key dates

• Filing date: May 18, 1994
• Grant date: Mar 28, 1995
• Expiry date: May 18, 2014

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F1/3617
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Polyesters containing nonlinear-optical chromophores, which have mean molecular weights M.sub.w of from 5000 to 500,000 and contain units of the formula (I) ##STR1## where A is a divalent radical, PA1 D is an electron donor, PA1 G is a heterocyclic ring as electron acceptor, PA1 x and y are identical or different numbers, PA1 m and n are identical or different numbers, and PA1 R.sup.1 and R.sup.2 are identical or different radicals, are suitable, for example, as components in communications technology.