公开(公告)号：US20090163686A1

公开(公告)日：2009-06-25

申请号：US11960775

申请日：2007-12-20

申请人： Michael K. Gerlach ,  Gerald N. Nkwantah ,  Giorgio B. Trapani ,  Pradnya V. Nagarkar ,  Phillip J. Ralli

发明人： Michael K. Gerlach ,  Gerald N. Nkwantah ,  Giorgio B. Trapani ,  Pradnya V. Nagarkar ,  Phillip J. Ralli

IPC分类号： B29D7/01 ,  C08F10/00

CPC分类号： B29C55/026 ,  B29C55/06 ,  B29K2029/04 ,  B29K2995/0034

摘要： An integrated wet stretch method of making an intrinsic polarizer includes the following steps in order: providing a polymeric film comprising poly(vinyl alcohol) and having an original length; immersing the polymeric film in a first bath comprising a first solution having a pH of less than about 3; uniaxially stretching the first polymeric film in the machine direction thereby forming a stretched polymeric film; removing the stretched polymeric film from the first bath; removing excess first solution from the stretched polymeric film; and uniaxially stretching the stretched polymeric film in the machine direction, at a temperature of at least about 120° C., thereby forming a further stretched polymeric film.

摘要翻译： 制备本征偏振片的整体湿拉伸方法包括以下步骤：提供包含聚（乙烯醇）并具有原始长度的聚合物膜; 将聚合物膜浸入包含pH小于约3的第一溶液的第一浴中; 在机器方向单轴拉伸第一聚合物膜，从而形成拉伸的聚合物膜; 从第一浴中除去拉伸的聚合物膜; 从拉伸的聚合物膜中除去过量的第一溶液; 并在至少约120℃的温度下沿机器方向单轴拉伸拉伸的聚合物膜，由此形成另外的拉伸聚合物膜。