Title:
RESIN COMPOSITION PRODUCTION METHOD, OPTICAL LAYERED BODY PRODUCTION METHOD, AND, OPTICAL LAYERED BODY
Document Type and Number:
WIPO Patent Application WO/2017/057339
Kind Code:
A1
Abstract:
This resin composition production method comprises a step of obtaining a resin composition by kneading with a biaxial extrusion machine equipped with screws, a UV absorber, and a polymer having an alicyclic structure. In the resin composition production method, the screws have three or more kneading zones, in which the ratio Lnx/D between the length Lnx of one of the kneading zones and the screw diameter D is 1.5 or greater. The ratio Ln/D between the kneading zone total length Ln and the screw diameter D is between 6.1 and 18 inclusive. The ratio SR/MFR between the shearing rate SR [sec-1] of the kneading by the biaxial extrusion machine and the melt flow rate MFR [g/10 min] of the obtained resin composition at a temperature of 280°C and a load of 2.16 kg is between 300 and 620 inclusive.
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Inventors:
ISHIHARA JIRO (JP)
Application Number:
PCT/JP2016/078406
Publication Date:
April 06, 2017
Filing Date:
September 27, 2016
Export Citation:
Assignee:
ZEON CORP (JP)
International Classes:
C08L65/00; C08J3/20; C08L45/00; G02B5/20
Domestic Patent References:
| WO2011162098A1 | 2011-12-29 | |||
| WO2016063793A1 | 2016-04-28 |
Foreign References:
| JP2015160324A | 2015-09-07 | |||
| JP2011203400A | 2011-10-13 | |||
| JP2010058410A | 2010-03-18 | |||
| JP2006142715A | 2006-06-08 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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