RETARDATION-INCREASING AGENT, CELLULOSE-BASED RESIN COMPOSITION USING SAME, AND FILM

摘要

Provided are: a retardation-increasing agent that has excellent compatibility and, when incorporated into a resin film, is capable of not only adjusting the thickness-direction phase difference toward a positive direction but also imparting the film with high retardation; a cellulose-based resin composition comprising the retardation-increasing agent; and a film that is obtained from the cellulose-based resin composition and has excellent optical properties. The retardation-increasing agent comprises a compound represented by the following Formula (1) or (2):;(wherein, R1 to R10 each independently represent a hydrogen atom or the like); or;(wherein, R21 to R28 each independently represent a hydrogen atom or the like).

主权项

1. A retardation-increasing agent comprising a compound represented by the following Formula (1) or (2): [wherein, R1 to R10 each independently represent a hydrogen atom; a halogen atom; a hydroxy group; a cyano group; a nitro group; an amino group; a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 12 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 12 carbon atoms; a group represented by RA(C═O)ORB— (wherein RA represents an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 12 carbon atoms or a cycloalkyl group having 3 to 12 carbon atoms, and RB represents a single bond or an alkylene group having 1 to 10 carbon atoms, which alkyl group, alkenyl group and alkylene group are optionally interrupted by an oxygen atom); or RAO(C═O)RB— (wherein, RA and RB each represent the same group as described above), which alkyl group, alkenyl group and cycloalkyl group are optionally interrupted by one or plural oxygen atoms, carbonyl groups, carboxy groups or amino groups]; or [wherein, R21 to R28 each independently represent a hydrogen atom; a halogen atom; a hydroxy group; a cyano group; a nitro group; an amino group; a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms; a substituted or unsubstituted cycloalkyl group having 3 to 12 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 12 carbon atoms; a group represented by RA(C═O)ORB— (wherein RA represents an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 12 carbon atoms or a cycloalkyl group having 3 to 12 carbon atoms, and RB represents a single bond or an alkylene group having 1 to 10 carbon atoms, which alkyl group, alkenyl group and alkylene group are optionally interrupted by an oxygen atom); or RAO(C═O)RB— (wherein, RA and RB each represent the same group as described above), which alkyl group, alkenyl group and cycloalkyl group are optionally interrupted by one or plural oxygen atoms, carbonyl groups, carboxy groups or amino groups].