Patent ID: 9482952
Filing Date: 2016-11-01
CPC Classification: C08F,C08G,C09D,G03F

Claim Text:
1. A composition for forming a topcoat layer, containing a solvent and a triphenylene derivative having a hydrophilic group, wherein said triphenylene derivative is a polymer which comprises a repeating unit containing a triphenylene skeleton represented by the following formula (2A) or (2B): in which each R is hydrogen or a hydrophilic group selected from the group consisting of hydroxyl group, carboxyl group, sulfo group, amino group, amido group, nitro group, cyano group, and polyalkyleneoxide group, provided that at least three of the Rs are the hydrophilic groups; R each R′ is hydrogen, a hydrophilic group selected from the group consisting of hydroxyl group, carboxyl group, sulfo group, aminog group, amido group, nitro group, cyano group, and polyalkyleneoxide group, or a repeating unit represented by the formula (2B), provided that at least three of the R′s are the hydrophilic groups; and