To provide a resin composition suitable for an optical compensation film, an optical compensation film excellent in the retardation characteristics using the resin composition, and a production method of an optical compensation film. The resin composition is characterized by containing a specific cellulose-based resin and a specific fumaric acid diester polymer in a specific blending ratio or by containing, as the resin component, a specific cellulose-based resin and a specific fumaric acid diester polymer in a specific blending ratio and further containing the resin component and an additive having an aromatic hydrocarbon ring or the like in a specific blending ratio, and an optical compensation film can be produced using the resin composition.
提供一种适用于光学补偿膜的
树脂组合物、一种使用该
树脂组合物的延缓特性优异的光学补偿膜以及一种光学补偿膜的生产方法。该
树脂组合物的特点是以特定的混合比例含有特定的
纤维素基
树脂和特定的
富马酸二酯聚合物,或作为
树脂组分以特定的混合比例含有特定的
纤维素基
树脂和特定的
富马酸二酯聚合物,并进一步以特定的混合比例含有该
树脂组分和具有
芳香烃环等的添加剂,使用该
树脂组合物可以生产光学补偿膜。