PROTECTIVE FILM FOR POLARIZER AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To manufacture a protective film for polarizer having an extremely small phase difference between film surface direction and a thickness direction and having a moisture vapor permeation rate suited for the protective film for the polarizer. SOLUTION: The protective film for polarizer comprises a resin film containing a thermoplastic resin with a substituted or nonsubstituted image group on a side chain (A) and a thermoplastic resin with a substituted or nonsubstituted phenyl group and a nitrile group on a side chain (B).