公开(公告)号：US10578774B2

公开(公告)日：2020-03-03

申请号：US15654215

申请日：2017-07-19

Applicant: ADEKA CORPORATION

Inventor： Yuki Tanaka ,  Takashi Murakami ,  Masaki Segawa ,  Koichiro Abe

IPC: C08K5/103 ,  G02B1/08 ,  G02B5/30 ,  C08L1/10 ,  C08L1/12 ,  C08K5/10 ,  C08K5/315 ,  C08J5/18 ,  C08K5/11 ,  C08K5/12 ,  G02F1/13363 ,  C08K5/01

Abstract: 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).