Conjugated polymers containing hetero-spiro atoms and their use as electroluminescence materials

US5741921A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Willi Kreuder · Mainz, DE
• Donald Lupo · Frankfurt am Main, DE
• Josef Salbeck · Kelkheim, DE
• Hermann Schenk · Hofheim, DE
• Thomas Stehlin · Kriftel, DE

Key dates

• Filing date: Apr 17, 1997
• Grant date: Apr 21, 1998
• Expiry date: Apr 17, 2017

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K85/6565
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Conjugated polymers comprising recurring units of the formula (I), ##STR1## where the symbols and indices have the following meanings: .psi. is an element of the 4th main group of the Periodic Table with the exception of carbon; D, E, F, G are identical or different and are each, for example, --O-- or a chemical bond; U is, for example, a chemical bond; V is, for example, as defined for U or is --O--; A are identical or different and are each, for example, H or a C.sub.1 -C.sub.20 -hydrocarbon radical; T is, for example, --O-- or --CA.dbd.CA--, where A is as defined above; K, L, M, Q are identical or different and are hydrocarbon radicals which can contain heteroatoms and have conjugated electron systems; m, n are identical or different and are 0, 1, 2, 3 or 4; are suitable as electroluminescence materials.