Title:
LAYERED BODY, OPTICAL ARTICLE, LENS, AND SPECTACLES
Document Type and Number:
WIPO Patent Application WO/2024/018902
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide: a layered body having excellent adhesion to an optical element base material and excellent shape stability; and an optical article, a lens, and spectacles that include such layered body. According to this embodiment, a layered body is provided. The layered body comprises: a first base material and a second base material; an adhesion layer; and a coating layer. The first and second base materials include a polyvinyl alcohol resin. The adhesion layer is interposed between the first base material and the second base material and adheres these base materials. The coating layer contains a resin and covers at least a portion of the surface of the first base material and/or the second base material. The resin contains at least one type selected from the group consisting of an epoxy resin, a urethane resin, and an acrylic resin.
Inventors:
SHIMIZU YASUTOMO (JP)
MORI KATSUHIRO (JP)
MORI KATSUHIRO (JP)
Application Number:
PCT/JP2023/025033
Publication Date:
January 25, 2024
Filing Date:
July 05, 2023
Export Citation:
Assignee:
TOKUYAMA CORP (JP)
International Classes:
G02B5/23; B32B27/30; G02B1/10; G02C7/00; G02C7/10
Domestic Patent References:
| WO2019163728A1 | 2019-08-29 |
Foreign References:
| JP2004518165A | 2004-06-17 |
Attorney, Agent or Firm:
KATO Ryuta et al. (JP)
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