Title:
METHACRYLIC RESIN, METHOD FOR PRODUCING SAME, RESIN COMPOSITION AND RESIN FILM
Document Type and Number:
WIPO Patent Application WO/2023/238885
Kind Code:
A1
Abstract:
The present invention provides: a methacrylic resin which comprises structural units derived from methyl methacrylate at a ratio of 98% by mass or more, has a triad syndiotacticity of 55% or more, and contains a terminal structure that is derived from a polymerization initiator and is represented by formula (1), wherein the ratio of terminal double bonds to the structural units derived from methyl methacrylate is less than 0.020 mol%; and a method for producing this methacrylic resin. In formula (1), each of R1, R2 and R3 independently represents an alkyl group, a substituted alkyl group, an ester group or an amide group, provided that at least one of R1, R2 and R3 represents an ester group or an amide group. The present invention also provides: a resin composition which contains this methacrylic resin; a resin film which contains this methacrylic resin; and a polarizing plate and a display device, each of which uses this resin film.
Inventors:
FURUTA TAKEFUMI (JP)
FURUKAWA YOSHIO (JP)
FURUKAWA YOSHIO (JP)
Application Number:
PCT/JP2023/021125
Publication Date:
December 14, 2023
Filing Date:
June 07, 2023
Export Citation:
Assignee:
KANEKA CORP (JP)
International Classes:
C08F2/38; C08F120/14; C08F4/04; C08L33/12; G02B5/30; G02F1/1335
Domestic Patent References:
| WO2018155467A1 | 2018-08-30 | |||
| WO2019088025A1 | 2019-05-09 | |||
| WO2014002505A1 | 2014-01-03 |
Foreign References:
| JP2000159818A | 2000-06-13 | |||
| JPS57135813A | 1982-08-21 | |||
| JP2000026507A | 2000-01-25 | |||
| JP2001233912A | 2001-08-28 | |||
| JP2000506918A | 2000-06-06 |
Attorney, Agent or Firm:
NIIYAMA Yuichi et al. (JP)
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