Fluorene-based alternating copolymers for electroluminescence element and electroluminescence element using such copolymers as light emitting materials
First Claim
Patent Images
1. A fluorene-based alternating copolymer used for luminescent materials of electroluminescent elements, indicated by the following formula (I):
- ##STR33## where R and R'"'"' which are identical or different, are selected from the group consisting of hydrogen, aliphatic or alicyclic alkyl or alkoxy groups containing 1 to 22 carbon atoms, or aryl or aryloxy group containing 6 to 18 carbon atoms;
X represents hydrogen or a cyano group;
Ar represents compounds substituted from aliphatic or alicyclic alkyl groups containing 1 to 22 carbons, phenyl groups in ortho, meta or para position, or aliphatic or alicyclic alkyl or alkoxy groups containing 1 to 22 carbons, diphenyl, diphenylether, diphenylsulfide and diphenylamine compounds, compounds having two or more phenyl groups, such as pyridine, furan, compounds having hetero atoms, diphenylmethane or diphenylsilane compounds, and bisformylphenoxyalkane or alkoxy compounds; and
n represents an integer greater than or equal to 1.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention relates to a fluorene-based alternating copolymer to be used as light emitting materials of electroluminescent elements having the following formula (I), and further relates to electroluminescent elements having an anode/luminescent layer/cathode structure, in which the fluorene-based alternating copolymer used as light emitting materials of the luminescent layer, or having a transporting and/or reflection layer added thereto, if necessary, is ##STR1## where R, R'"'"', X, Ar and n are defined in the text.
110 Citations
20 Claims
-
1. A fluorene-based alternating copolymer used for luminescent materials of electroluminescent elements, indicated by the following formula (I):
- ##STR33## where R and R'"'"' which are identical or different, are selected from the group consisting of hydrogen, aliphatic or alicyclic alkyl or alkoxy groups containing 1 to 22 carbon atoms, or aryl or aryloxy group containing 6 to 18 carbon atoms;
X represents hydrogen or a cyano group; Ar represents compounds substituted from aliphatic or alicyclic alkyl groups containing 1 to 22 carbons, phenyl groups in ortho, meta or para position, or aliphatic or alicyclic alkyl or alkoxy groups containing 1 to 22 carbons, diphenyl, diphenylether, diphenylsulfide and diphenylamine compounds, compounds having two or more phenyl groups, such as pyridine, furan, compounds having hetero atoms, diphenylmethane or diphenylsilane compounds, and bisformylphenoxyalkane or alkoxy compounds; and n represents an integer greater than or equal to 1. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
- ##STR33## where R and R'"'"' which are identical or different, are selected from the group consisting of hydrogen, aliphatic or alicyclic alkyl or alkoxy groups containing 1 to 22 carbon atoms, or aryl or aryloxy group containing 6 to 18 carbon atoms;
Specification