Abstract: Disclosed is a pyrrolotriazole compound represented by the following formula (I) and having an organic compound incorporated into crystals thereof or a pyrrolotriazole compound represented by the following formula (II) and having an alcohol incorporated into crystals thereof.

Abstract: A cellulose acylate film that has a crystallization index expressed by expression (A) as defined in the specification of from 0.70 to 1.02 and a modulus of elasticity in every arbitrary direction of an in-plane of the cellulose acylate film of from 3,800 MPa to 6,000 MPa; a manufacturing method of a cellulose acylate film comprising: casting a dope on a support; drying the dope on the support, so as to form a film; peeling the film from the support; and subjecting the film to a stretching treatment, wherein a crystallization index expressed by expression (A) of the film after peeling and before stretching is from 0.70 to 1.00; an optically compensatory sheet comprising the cellulose acylate film; and a polarizing plate and a liquid crystal display device using the optically compensatory sheet.

Abstract: A polymer film has a coefficient of fluctuation in degree of out-of-plane orientation of a polymer molecular chain in a thickness direction of the film as represented by the following numerical expression (1) as defined herein of from 15% to 80%.

Abstract: A polymer film satisfies the following formulae (1) and (2): 0.025?Pt?0.100 ??Formula (1) 0.90?Po/Pt?0.99 ??Formula (2) wherein Po represents an in-plane orientation degree of polymer molecular chain in the film surface, and Pt represents an average in-plane orientation degree of polymer molecular chain in the entire film thickness.

Abstract: A cellulose acylate film that has a crystallization index expressed by expression (A) as defined in the specification of from 0.70 to 1.02 and a modulus of elasticity in every arbitrary direction of an in-plane of the cellulose acylate film of from 3,800 MPa to 6,000 MPa; a manufacturing method of a cellulose acylate film comprising: casting a dope on a support; drying the dope on the support, so as to form a film; peeling the film from the support; and subjecting the film to a stretching treatment, wherein a crystallization index expressed by expression (A) of the film after peeling and before stretching is from 0.70 to 1.00; an optically compensatory sheet comprising the cellulose acylate film; and a polarizing plate and a liquid crystal display device using the optically compensatory sheet.

Abstract: Disclosed is a pyrrolotriazole compound represented by the following formula (I) and having an organic compound incorporated into crystals thereof or a pyrrolotriazole compound represented by the following formula (II) and having an alcohol incorporated into crystals thereof.