Title:
OPTICAL RESIN, AND OPTICAL FILM, POLARIZING PLATE, SURFACE PLATE, IMAGE DISPLAY PANEL, IMAGE DISPLAY DEVICE, AND MOLDED PRODUCT FOR OPTICS USING SAID OPTICAL RESIN
Document Type and Number:
WIPO Patent Application WO/2023/210647
Kind Code:
A1
Abstract:
Provided is an optical resin with which the occurrence of birefringence due to stresses such as an internal stress and an external stress can be suppressed. Provided is an optical resin wherein, regarding the 13C-NMR spectrum of the optical resin, when the range in which the chemical shift is 141-147 ppm is defined as a first range and the range in which the chemical shift is 135-141 ppm is defined as a second range, the ratio of the peak area of a peak in the first range to the peak area of a peak in the second range is not greater than 0.55.
Inventors:
HOTTA HIKARU (JP)
KURODA TAKASHI (JP)
SHINOHARA SEIJI (JP)
KURODA TAKASHI (JP)
SHINOHARA SEIJI (JP)
Application Number:
PCT/JP2023/016323
Publication Date:
November 02, 2023
Filing Date:
April 25, 2023
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD (JP)
International Classes:
G02B5/30; G02B1/04; G02B3/00; G02B3/08; G02B5/04; G02F1/1335; G09F9/00; H05B33/02; H05B33/14; H10K50/86; H10K59/10
Domestic Patent References:
| WO2021132519A1 | 2021-07-01 |
Foreign References:
| JP2021144208A | 2021-09-24 | |||
| JPS61218607A | 1986-09-29 | |||
| JPS6128540A | 1986-02-08 | |||
| JPS6134046A | 1986-02-18 | |||
| CN112480583A | 2021-03-12 |
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
Download PDF: