活性エネルギー線硬化性接着剤組成物、硬化物及びこれを用いた偏光板

Abstract

To provide an adhesive for polarizing plates suitable for manufacturing polarizing plates having high transparency without browning a polarizer under high temperature condition, and a polarizing plate using the same.SOLUTION: An active energy-ray-curable adhesive composition that is an adhesive used for pasting a protective film and a polarizer made of a polyvinyl alcohol-based resin film in which iodine or a dichromatic dye is absorbed and oriented, contains an onium salt represented by a general formula (1) and a cationic polymerizable compound (B), and is cationically polymerized by irradiation of the active energy ray to cure. A+ [(Rf)nPF6-n]- (1) [In the formula (1), Rf is independent from each other and represents an alkyl group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, and an aryl group having 6 to 10 carbon atoms, and a group in which 80% or more of hydrogen atoms bonded to a carbon atom of each group are substituted with fluorine atoms, n is an integer of 1 to 5, and A+ is a monovalent onium cation.

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