发明名称 METHOD FOR PRODUCING OPTICAL FILM AND OPTICAL FILM
摘要 An aspect of the present invention defines the composition and the physical properties of a coating solution so that drying unevenness is not caused even when the coated film is dried rapidly based on the premise that the coating solution containing a liquid crystal compound is coated on a flexible strip substrate being transferred in an amount of 4.5 to 12 mL/m<SUP>2</SUP>. In the invention, a fluoroaliphatic-group-containing polymer including prescribed repeating units and also satisfying the prescribed condition is added to a coating solution for forming an optically anisotropic layer. As a result, the fluoroaliphatic-group-containing polymer travels rapidly to the interface between the coating solution and air in initial drying after coating, stabilizing the air interface of the coated film. Use of the invention therefore prevents drying unevenness even when the coating amount is increased and the solution is rapidly dried under conditions that tend to cause drying unevenness.
申请公布号 US2008206493(A1) 申请公布日期 2008.08.28
申请号 US20080035806 申请日期 2008.02.22
申请人 FUJIFILM CORPORATION 发明人 SHIMODA KAZUHIRO;YAMAMOTO TSUYOSHI
分类号 C09K19/00;B05D5/06 主分类号 C09K19/00
代理机构 代理人
主权项
地址