Patent ID: 8685541

Claim:
Electroluminescent composition comprising a homopolymer of formula III wherein n ranges from 2 to 10000; L is CH 2 , CO or a direct bond; R 9 , R 11 , R 13 , R 14 , are selected from H, C 1 -C 18 alkyl, halogen, C 1 -C 18 alkyl which is substituted by E and/or interrupted by D, C 6 -C 24 aryl, C 6 -C 24 aryl which is substituted by G, C 2 -C 18 alkenyl, C 2 -C 18 alkynyl, C 1 -C 18 alkoxy, C 1 -C 18 alkoxy which is substituted by E and/or interrupted by D, C 7 -C 25 aralkyl, SiRRâ€²Râ€³, GeRRâ€²Râ€³, POAr 2 , PAr 2 , or is â€”COâ€”R 28 ; each of the residues R 9â€³ is independently selected from those defined for R 9 , Rx is H or methyl, SP is a divalent organic spacer, X10 is o or 1; D is â€”COâ€”; â€”COOâ€”; â€”Sâ€”; â€”SOâ€”; â€”SO 2 â€”; â€”Oâ€”; â€”NR 25 â€”; â€”SiR 30 R 31 â€”; â€”POR 32 â€”; â€”CR 23 â•CR 24 â€”; or â€”Câ‰¡Câ€”; and E is â€”OR 29 ; â€”SR 29 ; â€”NR 25 R 26 ; â€”COR 28 ; â€”COOR 27 ; â€”CONR 25 R 26 ; â€”CN; or halogen; G is E, C 1 -C 18 alkyl, C 3 -C 12 cycloalkyl, C 2 -C 18 alkyl which is interrupted by D, C 1 -C 18 perfluoroalkyl, or C 1 -C 18 alkoxy which is substituted by E and/or interrupted by D, wherein R 23 , R 24 , R 25 and R 26 are independently of each other H; C 6 -C 18 aryl; C 6 -C 18 arylalkyl; C 3 -C 12 cycloalkyl; C 6 -C 18 aryl or C 6 -C 18 arylalkyl which is substituted by C 1 -C 18 alkyl and/or C 1 -C 18 alkoxy; C 1 -C 18 alkyl; or C 2 -C 8 alkyl which is interrupted by â€”Oâ€”; or R 25 and R 26 together form a five or six membered ring; R 27 and R 28 are independently of each other H; C 6 -C 18 aryl; C 6 -C 18 arylalkyl; C 6 -C 18 aryl or C 6 -C 18 arylalkyl which is substituted by C 1 -C 18 alkyl and/or C 1 -C 18 alkoxy; C 1 -C 18 alkyl; C 3 -C 12 cycloalkyl; or C 2 -C 18 alkyl which is interrupted by â€”Oâ€”; R 29 is H; C 6 -C 18 aryl; C 6 -C 18 arylalkyl; C 6 -C 18 aryl or C 6 -C 18 arylalkyl which is substituted by C 1 -C 18 alkyl and/or C 1 -C 18 alkoxy; C 1 -C 18 alkyl; C 2 -C 18 alkylcarbonyl; C 3 -C 12 cycloalkyl; or C 2 -C 18 alkyl or C 2 -C 8 alkylcarbonyl which is interrupted by â€”Oâ€”; R 30 and R 31 are independently of each other C 1 -C 18 alkyl, C 3 -C 12 cycloalkyl, C 6 -C 18 aryl, or C 6 -C 18 aryl, which is substituted by C 1 -C 18 alkyl, and R 32 is C 1 -C 18 alkyl, C 6 -C 18 aryl, or C 6 -C 18 aryl, which is substituted by C 1 -C 18 alkyl, R, Râ€² and Râ€³ independently are selected from C 1 -C 12 alkyl, C 1 -C 12 haloalkyl, C 5 -C 10 aryl, C 3 -C 12 cycloalkyl; and Ar independently is selected from C 5 -C 10 aryl, or C 5 -C 10 aryl which is substituted by C 1 -C 18 alkyl; and a luminescent component selected from phosphorescent metal complexes and fluorescent dopants.