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Title:
STACKED BODY AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/218342
Kind Code:
A1
Abstract:
To provide a stacked body obtained by stacking a base member, an intermediate layer, and a water-repellent layer in this order, the stacked body having superior wear resistance. This stacked body is provided with a base member (s) having a reflection prevention layer, an intermediate layer (c) provided on the reflection prevention layer side of the base member, and a water-repellent layer (r) in this order, the stacked body being characterized in that: the intermediate layer (c) is a hardening layer of a mixed composition (cc) of an organic silicon compound (C) having silicon atoms and having an amino group and/or an amino skeleton, or a vapor deposition layer of the organic silicon compound (C); the water-repellent layer (r) is a hardened layer of a mixed composition (ca) of an organic silicon compound (A) in which a univalent group having a perfluoropolyether structure is bonded to a silicon atom with or without a bonding group and a hydrolyzable group is bonded to the silicon atom with or without a bonding group; and the following condition (1) is satisfied. (1) The sliding down angle of water is no more than 50% after a wear resistance test in which a load of 200 g per area of 1.5 cm by 1.5 cm is applied and scratched 20,000 times on the water-repellent layer (r) side of the stacked body.

Inventors:
TAKESHITA KATSUYOSHI (JP)
WAKIYASU HIDEYUKI (JP)
ITO TOMOHIRO (JP)
MIYAMOTO TOMONORI (JP)
TOKUDA MASAYOSHI (JP)
Application Number:
PCT/JP2020/017341
Publication Date:
October 29, 2020
Filing Date:
April 22, 2020
Export Citation:
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Assignee:
NIKON ESSILOR CO LTD (JP)
SUMITOMO CHEMICAL CO (JP)
International Classes:
B32B27/00; B05D1/36; B05D3/10; B05D7/00; B05D7/24; G02B1/113; G02B1/14; G02B1/18
Domestic Patent References:
WO2017122616A12017-07-20
WO2018155324A12018-08-30
WO2019093259A12019-05-16
Foreign References:
JP2010217630A2010-09-30
JPH09258003A1997-10-03
JP2017170827A2017-09-28
JP2018031000A2018-03-01
JP2004145283A2004-05-20
JP2015120253A2015-07-02
JP2012197330A2012-10-18
JP2014015609A2014-01-30
JP2019086595A2019-06-06
Other References:
See also references of EP 3960443A4
Attorney, Agent or Firm:
USFI PATENT ATTORNEYS INTERNATIONAL OFFICE (JP)
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