Patent ID: 9233930
Filing Date: 2016-01-12
CPC Classification: C07D,C07F,C08F,C08G,C09B,H01L,Y02E

Claim Text:
1. An oligomer, polymer or copolymer, comprising at least two structural units of formula II′ or comprising at least two structural units of formula III′ wherein: R R Y and Y′ independently are selected from the group consisting of n and p independently range from 0 to 6; R neighbouring residues R R m denotes the number of structural units of formula III' ranging from 2 to about 50000; X is a divalent linking group X′ is a trivalent linking group derived, together with a moiety integrated into a chain, from  such that X′ comprises one of R R R or R R R R R R q is 0, 1, 2, 3 or 4; R R R the substituent, if present, is independently selected from the group consisting of a halogen, OR, C R, R′ and R″ independently are selected from the group consisting of C R is optionally hydrogen; each of the substituent, or R, R′ and R″, which is C neighboring substituents are not linked together to form an annelated carbocylic or heterocyclic ring system.