Title:
RESIN COMPOSITION PRODUCTION METHOD, OPTICAL FILM, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/140901
Kind Code:
A1
Abstract:
The resin composition production method of one aspect of the invention, which is a method for producing a resin composition comprising an acrylic resin and a cellulose ester resin, is characterized in comprising a process for melt-kneading said acrylic resin and cellulose ester resin in the presence of a supercritical fluid, a process for discharging said supercritical fluid using an extruder, and a process for molding the melted resin composition obtained by said melt-kneading. Said resin composition production method provides a method for producing a resin composition comprising an acrylic resin and a cellulose ester resin wherein the compatibility of the two resins has been improved. Said resin composition production method also provides an optical film for which degradation of performance in harsh environments has been improved, as well as a polarizing plate and liquid crystal display device equipped with said optical film.
Inventors:
HOJO DAISUKE (JP)
Application Number:
PCT/JP2012/002557
Publication Date:
October 18, 2012
Filing Date:
April 12, 2012
Export Citation:
Assignee:
KONICA MINOLTA ADVANCED LAYERS (JP)
HOJO DAISUKE (JP)
HOJO DAISUKE (JP)
International Classes:
C08J3/20; C08J5/18; C08L1/10; C08L33/04; G02B1/11; G02B5/30; G02F1/1335
Domestic Patent References:
| WO2010082397A1 | 2010-07-22 | |||
| WO2010044313A1 | 2010-04-22 | |||
| WO2003035725A1 | 2003-05-01 | |||
| WO2010016369A1 | 2010-02-11 | |||
| WO2009047924A1 | 2009-04-16 |
Foreign References:
| JP2009286930A | 2009-12-10 | |||
| JP2002322288A | 2002-11-08 | |||
| JP2009179731A | 2009-08-13 | |||
| JP2010122340A | 2010-06-03 | |||
| JP2008088417A | 2008-04-17 |
Attorney, Agent or Firm:
KOTANI, Etsuji et al. (JP)
Etsuji Kotani (JP)
Etsuji Kotani (JP)
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Claims: