PHOTOCURABLE COMPOSITION, HYDROGEL, AND MOLDED ARTICLE THEREOF

Title:

PHOTOCURABLE COMPOSITION, HYDROGEL, AND MOLDED ARTICLE THEREOF

Document Type and Number:

WIPO Patent Application WO/2019/049651

Kind Code:

A1

Abstract:

[Problem] The purpose of the present invention is to provide a hydrophilic resin composition having excellent UV curing properties and UV shielding performance, a hydrogel comprising the composition, and a molded article thereof. [Solution] A photocurable composition containing: (A) a monomer having one (meth)acryloyl structure; (B) a crosslinking agent having at least two acryloyl structures, and included in an amount of 0.1–10 wt% relative to the total of component (A) and component (B); (C) an inorganic UV shielding agent with 1–50 nm as the 50% cumulative particle size in a volume-weighted particle size distribution obtained by dynamic light scattering, and included in an amount of 0.5–10 parts by weight per a total 100 parts by weight of component (A) and component (B); and (D) a photoinitiator included in an amount of 0.05 to 1 part by weight per a total 100 parts by weight of component (A) and component (B), wherein all or a portion of component (A) is a hydrophilic monomer, and the content of the hydrophilic monomer is at least 70 wt% relative to the total weight of component (A) and component (B).

Inventors:

YOSHII RYOSUKE (JP)
MASUDA KOHEI (JP)
HAGIWARA MAMORU (JP)
KIMURA TSUNEO (JP)

Application Number:

PCT/JP2018/030785

Publication Date:

March 14, 2019

Filing Date:

August 21, 2018

Export Citation:

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Assignee:

SHINETSU CHEMICAL CO (JP)

International Classes:

C08F2/44; C08F2/50; C08F292/00; C08J5/00; C08K3/22; C08L101/14; G02C7/04

Foreign References:

JP2000327925A	2000-11-28
JP5704133B2	2015-04-22
JP2009029931A	2009-02-12
JPH02135263A	1990-05-24
JP2000296174A	2000-10-24
JP2004530940A	2004-10-07
JP2006188386A	2006-07-20
JP3063041B2	2000-07-12
JPS574133B2	1982-01-25
JP2016079395A	2016-05-16

Other References: