公开(公告)号：US20230303761A1

公开(公告)日：2023-09-28

申请号：US18327167

申请日：2023-06-01

Applicant: AGC Inc.

Inventor： Jun YOSHIDA

IPC: C08G59/38 ,  C08G59/24 ,  G02B1/04

CPC classification number: C08G59/38 ,  C08G59/24 ,  G02B1/041

Abstract: One aspect of the present invention provides: a curable resin composition from which a cured product with excellent reliability at low temperatures can be obtained; a cured product and a lens with excellent reliability at low temperatures; and a substrate-attached lens comprising the lens.
The curable resin composition according to one aspect of the present invention comprises a diglycidyl ether compound having a bisphenol skeleton, a bifunctional alicyclic epoxy compound (excluding the diglycidyl ether compound), and a trifunctional or higher polyfunctional epoxy compound having an isocyanurate ring structure. The content of the diglycidyl ether compound is 30% by mass or more and the content of the polyfunctional epoxy compound is 20% by mass or less with respect to the total mass of resin components in the curable resin composition.
The cured product is one obtained by curing the curable resin composition of the present invention.
The lens comprises a cured product of the curable resin composition of the present invention.
The substrate-attached lens comprises a substrate and the lens provided on the substrate.

公开(公告)号：US20230331688A1

公开(公告)日：2023-10-19

申请号：US18334426

申请日：2023-06-14

Applicant: AGC Inc.

Inventor： Nanako NISHIMOTO ,  Jun YOSHIDA

IPC: C07D303/04 ,  C08L63/00 ,  C08G59/24 ,  G02B1/04

CPC classification number: C07D303/04 ,  C08L63/00 ,  C08G59/24 ,  G02B1/04

Abstract: A diepoxy compound represented by the following formula 1,




where any one of R1 groups is an epoxy group, and the remaining R1 groups each independently represents a hydrogen atom or a linear or branched alkyl group having 1 to 10 carbon atoms, and any one of R2 groups is an epoxy group, and the remaining R2 groups each independently represents a hydrogen atom or a linear or branched alkyl group having 1 to 10 carbon atoms.

公开(公告)号：US20200157256A9

公开(公告)日：2020-05-21

申请号：US15993002

申请日：2018-05-30

Applicant: AGC Inc.

Inventor： Keisuke TAKAGI ,  Jun YOSHIDA ,  Hidenobu MUROFUSHI

IPC: C08F20/14 ,  C08F20/22 ,  C08F20/28 ,  C08F20/56 ,  C08F30/08 ,  C08F2/48 ,  C09C1/30

Abstract: To provide a curable composition whereby it is possible to obtain a cured product having a high Abbe number and being excellent in transparency, crack resistance and releasability; and such a cured product. A curable composition comprises, in specific ratios, surface-modified metal oxide particles (A) having (meth)acryloyl-group-containing surface-modifying groups on the surface of the metal oxide particles, a compound (B) having a fluorine atom and at least one (meth)acryloyl group, a compound (C) having a urethane bond or —OCH2CH(OH)CH2—, having at least two (meth)acryloyl groups and having a mass-average molecular weight of at least 1,000, a compound (D) having no unsaturated bond-containing ring structure and having at least one (meth)acryloyl group, and a polymerization initiator (E).