Title:
METHACRYLIC RESIN AND METHOD FOR PRODUCING SAME, RESIN COMPOSITION, DOPE, AND RESIN FILM
Document Type and Number:
WIPO Patent Application WO/2023/238886
Kind Code:
A1
Abstract:
Provided are: a methacrylic resin having a proportion of structural units derived from methyl methacrylate of 98 mass% or higher, a weight-average molecular weight (Mw) measured by gel permeation chromatography (GPC) of 400,000 or greater, a ratio (Mw/Mn) of weight-average molecular weight (Mw) to number-average molecular weight (Mn) of 1.6-2.8, a triad syndiotacticity of 55% or greater, a 5% weight loss temperature of 300°C or higher, and a residual level of chain transfer agent of 0.005 mass% or lower; and a method for producing the methacrylic resin. Also provided are a resin composition and a dope containing the methacrylic resin, a resin film containing the methacrylic resin, and a polarizing plate and a display device in which the resin film is used.
Inventors:
FURUTA TAKEFUMI (JP)
FURUKAWA YOSHIO (JP)
FURUKAWA YOSHIO (JP)
Application Number:
PCT/JP2023/021126
Publication Date:
December 14, 2023
Filing Date:
June 07, 2023
Export Citation:
Assignee:
KANEKA CORP (JP)
International Classes:
C08F120/14; C08F2/38; C08F4/04; C08J5/18
Domestic Patent References:
| WO2017010323A1 | 2017-01-19 |
Foreign References:
| JPH10139822A | 1998-05-26 | |||
| JPS6151105A | 1986-03-13 | |||
| JP2015086250A | 2015-05-07 | |||
| JP2003231709A | 2003-08-19 | |||
| JP2001081134A | 2001-03-27 | |||
| JP2001089528A | 2001-04-03 | |||
| JP2016188313A | 2016-11-04 | |||
| JP2017048344A | 2017-03-09 | |||
| JPS6479209A | 1989-03-24 |
Attorney, Agent or Firm:
NIIYAMA Yuichi et al. (JP)
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