发明授权
- 专利标题： Polarizing film
- 专利标题（中）： 极化膜
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申请号： US579246申请日： 1990-09-06
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公开(公告)号： US5059356A公开(公告)日： 1991-10-22
- 发明人: Katsuji Nakamura , Junichi Fujio , Shin Hosonuma , Masakatsu Nakatsuka , Tsutomu Nishizawa
- 申请人： Katsuji Nakamura , Junichi Fujio , Shin Hosonuma , Masakatsu Nakatsuka , Tsutomu Nishizawa
- 申请人地址： JPX Tokyo
- 专利权人： Mitsui Toatsu Chemicals, Incorporated
- 当前专利权人： Mitsui Toatsu Chemicals, Incorporated
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX59-210067 19841005
- 主分类号： G02B5/22
- IPC分类号： G02B5/22 ; C09B5/62 ; C09K9/02 ; G02B5/30
摘要：
Disclosed is a polarizing film comprising a hydrophobic polymer containing a dichroic organic colorant in an oriented state which is characterized in that the dichroic organic colorant is substantially insoluble in water, organic solvents and liquid crystals and the dichroic ratio of the colorant is not less than 7 when it is measured with the film obtained by blending the colorant intimately with polyethylene terephthalate, melting the resulting blend and forming it into a film. This polarizing film has exceptionally excellent moisture resistance and thermal resistance.