COATING LIQUID FOR FLATTENING FILM AND FLATTENING FILM

摘要

PROBLEM TO BE SOLVED: To provide a coating liquid for a flattening film never forming a crack even in the case of a thick film and further being superior in weatherability, and the flattening film formed by using the coating liquid.;SOLUTION: The flattening film is formed by using the coating liquid for the flattening film containing a polymer obtained by using a silsesquioxane derivative shown as a formula (1) and a solvent. In the formula (1), every R is a non-substituted phenyl, cyclopentyl, cyclohexy or t-butyl; Y¹ is a group shown by the formula (a-1), (a-3), (a-5), (a-7), (a-8) or (a-9); R^a is a vinyl, allyl or styryl; and each of X¹¹, X¹³, X¹⁵, X¹⁷ and X¹⁹ is a 1-4C alkyl or a non-substituted phenyl.;COPYRIGHT: (C)2006,JPO&NCIPI