Patent Number: 6,309,763

Title: Fluorene-containing polymers and electroluminescent devices therefrom

Abstract: A copolymer comprising 10-90 percent by weight of groups of Formula (I): ##STR1## and from 10-90 percent by weight of groups selected from Formulas (II), (III), and (IV): ##STR2## and mixtures thereof; wherein R.sup.1 is independently in each occurrence H, C.sub.1 -C.sub.20 hydrocarbyl or C.sub.1 -C.sub.20 hydrocarbyl containing one or more S, N, O, P or Si atoms, C.sub.4 -C.sub.16 hydrocarbyl carbonyloxy, C.sub.4 -C.sub.16 aryl(trialkylsiloxy) or both R.sup.1 may form with the 9-carbon on the fluorene ring a C.sub.5 -C.sub.20 cycloaliphatic structure or a C.sub.4 -C.sub.20 cycloaliphatic structure containing one or more heteroatoms of S, N, or O; R.sup.2 is independently in each occurrence C.sub.1 -C.sub.20 hydrocarbyl, C.sub.1 -C.sub.20 hydrocarbyloxy, C.sub.1 -C.sub.20 thioether, C.sub.1 -C.sub.20 hydrocarbylcarbonyloxy or cyano; R.sup.3 is independently in each occurrence carboxyl, C.sub.1 -C.sub.20 alkyl, C.sub.1 -C.sub.20 alkoxy or a group of the formula --CO.sub.2 R.sup.4 wherein R.sup.4 is a C.sub.1 -C.sub.20 alkyl; and a and b are independently in each occurrence an integer from 0 to 3.

Inventors: Woo; Edmund P. (Midland, MI), Bernius; Mark T. (Midland, MI), Inbasekaran; Michael (Midland, MI), Wu; Weishi (Midland, MI)

Assignee: The Dow Chemical Company

International Classification: C07C 25/22 (20060101); C07C 25/00 (20060101); C08G 61/02 (20060101); C07C 69/00 (20060101); C08G 61/00 (20060101); H01L 51/05 (20060101); H01L 51/30 (20060101); H01L 51/50 (20060101); C08G 061/00 (); H05B 033/12 ()

Expiration Date: 10/30/2018