Title:
OPTICAL MEMBER, CURABLE COMPOSITION, AND PRODUCTION METHOD FOR OPTICAL MEMBER
Document Type and Number:
WIPO Patent Application WO/2020/116617
Kind Code:
A1
Abstract:
[1] This optical member has a plastic substrate and a hard coating layer, wherein the hard coating layer is made of a cured product of a curable composition that comprises an inorganic oxide and an ultraviolet absorber, while the content of the ultraviolet absorber in the cured product is 0.5-15 mass%. [2] This curable composition comprises an inorganic oxide and an ultraviolet absorber, wherein the content of the ultraviolet absorber is 0.5-15 mass% with respect to 100 mass% of the total effective components of the curable composition. [3] This optical member production method comprises a step for forming a hard coating layer by coating a plastic substrate with the curable composition described in [2] and curing the coated composition.
Inventors:
SEKIGUCHI YUSUKE (JP)
YAMASHITA TERUO (JP)
KUBOTA SHOGO (JP)
YAMASHITA TERUO (JP)
KUBOTA SHOGO (JP)
Application Number:
PCT/JP2019/047836
Publication Date:
June 11, 2020
Filing Date:
December 06, 2019
Export Citation:
Assignee:
HOYA LENS THAILAND LTD (TH)
SEKIGUCHI YUSUKE (JP)
YAMASHITA TERUO (JP)
KUBOTA SHOGO (JP)
SEKIGUCHI YUSUKE (JP)
YAMASHITA TERUO (JP)
KUBOTA SHOGO (JP)
International Classes:
G02C7/00; G02B1/14; G02B5/22
Domestic Patent References:
WO2018124204A1 | 2018-07-05 | |||
WO2014119736A1 | 2014-08-07 |
Foreign References:
JPH0593170A | 1993-04-16 | |||
JPH09265059A | 1997-10-07 | |||
JPH05287241A | 1993-11-02 | |||
JP2008158483A | 2008-07-10 | |||
JPH08120065A | 1996-05-14 | |||
JPH09265059A | 1997-10-07 |
Other References:
See also references of EP 3893044A4
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
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