Patent number: 7390578
Abstract: Aryl-substituted poly-p-arylenevinylenes comprising a repeating unit of the formula (C1), in which one or more of the unsubstituted aromatic carbon atoms may be replaced by nitrogen atoms, —OCm and —OCn are alkoxy groups, m and n are integers from 2 to 6 with m+n=8, p is 0, 1, 2 or 3 and in which R is CN, Cl, F, CF3, NO2, or SO3Z wherein Z is a monovalent cation such as Na+, or in which R is —XR1 wherein the unit —X— represents a single bond, —O—, —S—, —CO—, —COO—, —OCO—, —SO—, —SO2—, —N(R2)— or —N(R2)CO—, and wherein R1 and R2 are the same or different and constitute a straight-chain branched or cyclic C1-C20 alkyl group or together an C1-C20 alkylene group, in which C1-C20 alkyl or C1-C20 alkylene group one or more hydrogens are optionally substituted by F or a C4-C12 aryl group and/or one or more non-adjacent —CH2— units are optionally substituted by C4-C12 arylene, —O—, —S—, —CO—, —COO—, —OCO—, —SO—, —SO2—, —N(R3)— or —N(R3)CO— where R3 is C1-C20 alkyl, or in which R is a C4-C12 aryl group which may o
Type:
Grant
Filed:
February 17, 2004
Date of Patent:
June 24, 2008
Assignee:
Koninklijke Philips Electronics N.V.
Inventors:
Adrianus Johannes Mattheus Berntsen, Hermannus Franciscus Maria Schoo, Henricus Franciscus Johannus Jacobus Van Tongeren
