Patent ID: 9577194
Date: 2017-02-21
CPC Classifications: C07D,C08F,C08G,C09B,C09D,H01B,H01L

Claim:
1. A composition comprising: at least one first compound and at least one second compound different from the first, wherein the at least one first compound comprises a hole transporting core which is a fluorene core or a biphenyl core, wherein the hole transporting core is covalently bonded to a first arylamine group and also covalently bonded to a second arylamine group, and wherein the core is further covalently bonded to at least two solubilizing groups comprising at least four carbon atoms, and wherein the solubilizing groups are optionally substituted with intractability groups; wherein the at least one second compound comprises a hole transporting core which is a fluorene core or a biphenyl core, wherein the hole transporting core is covalently bonded to a first arylamine group and also covalently bonded to a second arylamine group, wherein the second compound further comprises at least one intractability group which may be bonded to the first arylamine group, the second arylamine group, or both; wherein the first and second compounds have molecular weight of about 5,000 g/mole or less, wherein for the first compound, the solubilizing group is substituted with the intractability group, and for the second compound the core further comprises at least two solublizing groups comprising at least four carbon atoms, and wherein for the second compound the solubilizing groups do not comprise intractability groups.