Title:
POLYCYCLOOLEFIN RESIN FILM, PROCESS FOR PRODUCING THE SAME, POLARIZER, AND LIQUID-CRYSTAL DISPLAY
Document Type and Number:
WIPO Patent Application WO/2008/041657
Kind Code:
A1
Abstract:
A polycycloolefin resin film which changes little in optical properties with
changing environmental temperature/humidity, is even in film flatness, surface
state, transparency, and optical properties, and has excellent mechanical
strength; an optical film; a polarizer; and a liquid-crystal display. The polycycloolefin
resin film is formed by casting a polycycloolefin resin solution containing,
dissolved therein, 10-50 mass% resin composition containing at least a polycycloolefin
resin on an endless support and peeling the casting from the support. The film
is characterized in that the polycycloolefin resin solution reaches the gelation
point during the period from casting on the endless support to peeling off. (The
gelation point means a temperature at which the larger of the value of storage
modulus (E') and that of loss modulus (E") of the polycycloolefin
resin solution becomes the smaller of these.)
Inventors:
KAWANISHI HIROYUKI
TACHIKAWA HIROMICHI
WATANABE SAISUKE
NAGURA MASATO
TACHIKAWA HIROMICHI
WATANABE SAISUKE
NAGURA MASATO
Application Number:
PCT/JP2007/069091
Publication Date:
April 10, 2008
Filing Date:
September 28, 2007
Export Citation:
Assignee:
FUJIFILM CORP (JP)
KAWANISHI HIROYUKI
TACHIKAWA HIROMICHI
WATANABE SAISUKE
NAGURA MASATO
KAWANISHI HIROYUKI
TACHIKAWA HIROMICHI
WATANABE SAISUKE
NAGURA MASATO
International Classes:
B29C41/24; C08J5/18; G02B5/30; G02F1/1335; B29K45/00; B29L7/00; B29L11/00
Foreign References:
| JP2003053750A | 2003-02-26 | |||
| JPH1158425A | 1999-03-02 | |||
| JP2005224754A | 2005-08-25 |
Attorney, Agent or Firm:
TAKAMATSU, Takeshi et al. (Kawabe Bldg.7-9, Shimbashi 3-chom, Minato-ku Tokyo 04, JP)
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