Patent ID: 8936840
Filing Date: 2015-01-20
Classification: C08B,C08J,C08K,C08L,C09K,G02B,G02F

Abstract:
1. A retardation film comprising a cellulose derivative and at least one compound represented by general formula (2) or (3): wherein R X X R R n represents an integer of 0 to 4; and when n is 2 or more, a plurality of R R a q-valent linking group formed by combining two or more members selected from the group consisting of an alkyl group, a cycloalkyl group, an aryl group and a heterocyclic group, or a q-valent linking group formed by combining an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group with a divalent group represented by —NR R q represents 2 or 3; wherein R X X R R n represents an integer of 0 to 4; and when n is 2 or more, a plurality of R R a p-valent linking group formed by combining two or more members selected from the group consisting of an alkyl group, a cycloalkyl group, an aryl group and a heterocyclic group, or a p-valent linking group formed by combining an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group with a divalent group represented by —NR R p represents 2 or 3.