- Patent Title: Photocurable composition, a hydrogel and a molded product thereof
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Application No.: US16644860Application Date: 2018-08-21
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Publication No.: US11987688B2Publication Date: 2024-05-21
- Inventor: Ryosuke Yoshii , Kohei Masuda , Mamoru Hagiwara , Tsuneo Kimura
- Applicant: Shin-Etsu Chemical Co., Ltd.
- Applicant Address: JP Tokyo
- Assignee: Shin-Etsu Chemical Co., Ltd.
- Current Assignee: Shin-Etsu Chemical Co., Ltd.
- Current Assignee Address: JP Tokyo
- Priority: JP 17171959 2017.09.07
- International Application: PCT/JP2018/030785 2018.08.21
- International Announcement: WO2019/049651A 2019.03.14
- Date entered country: 2020-03-05
- Main IPC: C08K3/22
- IPC: C08K3/22 ; C08F292/00 ; G02B1/04 ; G02B27/00 ; G02C7/10

Abstract:
A photocurable composition including the following components (A) to (D), (A) a monomer having one (meth)acryloyl structure, (B) a crosslinking agent having two or more (meth)acryloyl structures, (C) an inorganic ultraviolet-blocking agent having a 50% volume cumulative particle size of 1 to 50 nm, and (D) a photopolymerization initiator in an amount of 0.05 to 1 part by weight, relative to total 100 parts by weight of components (A) and (B), wherein a part or all of component (A) is a hydrophilic monomer, and a content of the hydrophilic monomer is 70% by weight or more, relative to the total weight of components (A) and (B).
Public/Granted literature
- US20210024719A1 PHOTOCURABLE COMPOSITION, A HYDROGEL AND A MOLDED PRODUCT THEREOF Public/Granted day:2021-01-28
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