Humidity dependence improver for polymer film, polymer film, protective film for polarizer, retardation film, polarizer, and liquid crystal display device

摘要

A humidity dependence improver for polymer film, comprising a compound of the following formula (1) or (2): wherein Ra, Rb and Rc represent an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group; X1 to X6 represent a single bond or a divalent linking group; R1 to R6 represent a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group.