Stretched cellulose ester film, hard coat film, antireflective film, and optical compensation film, and polarizing plate, and display device using them
申请人:Takagi Takahiro
公开号:US20060182901A1
公开(公告)日:2006-08-17
In a stretched cellulose ester film containing a plasticizer, the plasticizer includes at least an aromatic terminal ester type plasticizer expressed by the following general formula (1): and stretched cellulose ester film includes a cellulose ester having a total acyl substitution degree of 2.4 to 2.9, a number average molecular weight (Mn) of 30000 to 200000, and a value of a weight-average molecular weight (Mw)/a number average molecular weight (Mn) being 1.4 to 3.0,
B-(G-A)n-G-B General formula (1)
where B represents a benzenemonocarboxylic acid residue, G represents an alkylene glycol residue having a carbon number of 2 through 12 or an oxyalkylene glycol residue having a carbon number of 4 through 12, A represents an alkylene dicarboxylic acid residue having a carbon number of 4 to 12, and n indicates an integer of 0 or more.
在一个含有可塑剂的拉伸纤维素酯薄膜中,该可塑剂包括至少一种芳香末端酯类型可塑剂,其由以下通式(1)表示:B-(G-A)n-G-B,其中B表示苯甲酸残基,G表示碳数为2至12的烷基二醇残基或碳数为4至12的氧烷基二醇残基,A表示碳数为4至12的烷基二羧酸残基,n表示大于或等于0的整数。而拉伸纤维素酯薄膜则包括具有总酰基取代度为2.4至2.9、数均分子量(Mn)为30000至200000以及重均分子量(Mw)/数均分子量(Mn)为1.4至3.0的纤维素酯。