Title:
変性ＰＶＡを含む偏光膜及び該偏光膜を有する光学積層体
Document Type and Number:
Japanese Patent JP5685222
Kind Code:
B2
Abstract:
[TECHNICAL PROBLEM] Provided a polarizing film which comprising a substrate and a PVA-based resin, wherein it has good adhesion between the substrate and the PVA-based resin to allow the PVA-based resin to become less likely to be peeled off from the substrate during stretching and/or conveyance, and exhibits excellent appearance. [SOLUTION] The polarizing film is obtained by providing a layer of a PVA-based resin on a substrate and stretching the substrate and the PVA-based resin layer together. The PVA-based resin contains a modified PVA, wherein the modified PVA exists in an amount allowing a modification rate with respect to the entire PVA-based resin to be in a range of 0.04 mol% to 1.4 mol%.
Inventors:
灰田 信幸
後藤 周作
喜多川 丈治
後藤 周作
喜多川 丈治
Application Number:
JP2012129014A
Publication Date:
March 18, 2015
Filing Date:
June 06, 2012
Export Citation:
Assignee:
日東電工株式会社
International Classes:
G02B5/30; G02F1/1335
Attorney, Agent or Firm:
辻居 Koichi
Sadao Kumakura
Fumiaki Otsuka
Takayoshi Nishijima
Hiroyuki Suda
Hiroshi Uesugi
Naoki Kondo
Sadao Kumakura
Fumiaki Otsuka
Takayoshi Nishijima
Hiroyuki Suda
Hiroshi Uesugi
Naoki Kondo