Title:
ELONGATED FILM MANUFACTURING METHOD, LONG POLARIZING FILM, AND LIQUID-CRYSTAL DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/072518
Kind Code:
A1
Abstract:
Provided is an elongated film manufacturing method comprising: (a) a first step of elongating a long pre-elongation film in an oblique direction at an elongation multiple (B1), obtaining a long intermediate film; and after the first step, (b) a second step of, while continuously conveying the intermediate film, carrying out unconstrained uniaxial elongating of the intermediate film at an elongation multiple (B2) in the flow direction, obtaining a long elongated film. The elongation multiples satisfy B1>B2.
Inventors:
KOBAYASHI TAKAO (JP)
Application Number:
PCT/JP2014/080084
Publication Date:
May 21, 2015
Filing Date:
November 13, 2014
Export Citation:
Assignee:
ZEON CORP (JP)
International Classes:
G02B5/30; B29C55/14; G02F1/1335; B29L11/00
Domestic Patent References:
| WO2012070451A1 | 2012-05-31 | |||
| WO2007061105A1 | 2007-05-31 | |||
| WO2013161581A1 | 2013-10-31 |
Foreign References:
| JP2008110573A | 2008-05-15 | |||
| JP2010201659A | 2010-09-16 | |||
| JP2012025167A | 2012-02-09 |
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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