公开(公告)号：US10927199B2

公开(公告)日：2021-02-23

申请号：US15993002

申请日：2018-05-30

Applicant: AGC Inc.

Inventor： Keisuke Takagi ,  Jun Yoshida ,  Hidenobu Murofushi

IPC: C08F20/14 ,  C08F220/22 ,  C08F292/00 ,  C09C1/36 ,  C09C3/08 ,  C08F2/48 ,  C08F20/22 ,  C08F20/28 ,  C08F20/56 ,  C08F30/08 ,  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).

公开(公告)号：US10457756B2

公开(公告)日：2019-10-29

申请号：US15818095

申请日：2017-11-20

Applicant: AGC Inc.

Inventor： Jun Yoshida ,  Keisuke Takagi ,  Hidenobu Murofushi ,  Tomoaki Sakurada

IPC: C08F122/22 ,  C07C271/16 ,  C07C323/12 ,  C07C323/43 ,  C07D303/28 ,  C08F122/24 ,  C08G59/30 ,  C08G59/68 ,  C08G59/04 ,  C08G65/00 ,  C08G65/331 ,  C08G65/333 ,  C08G65/334 ,  C08F222/22

Abstract: To provide a fluorinated compound capable of obtaining a cured product which is excellent in heat resistance and mold release and has a high Abbe number; a curable composition containing such a compound; and a cured product which is excellent in heat resistance and mold release and has a high Abbe number. The fluorinated compound is represented by the following formula (A): [Z—OCH2CF2CF2CF2OCFHCF2—X—]nQ  (A) where n is an integer of at least 1, Q is a n-valent organic group, X is —O—, —NH— or —S—, and Z is a group having at least one polymerizable functional group.

公开(公告)号：US10745508B2

公开(公告)日：2020-08-18

申请号：US16001317

申请日：2018-06-06

Applicant: AGC Inc.

Inventor： Keisuke Takagi ,  Jun Yoshida ,  Hidenobu Murofushi

IPC: C08F292/00 ,  C08G77/24 ,  C08G77/20 ,  C07F7/18 ,  C09C1/36 ,  C09C3/12 ,  C09D183/08 ,  C07F7/28 ,  G02B1/04

Abstract: Surface-modified metal oxide particles, includes: a metal oxide particle having a refractive index of at least 1.9 to light having a wavelength of 589 nm; a first surface-modifying group having a group represented by formula (A1); and a second surface-modifying group having a group represented by formula (A2). R1 is a hydrogen atom or a C1-4 hydrocarbon group; n is an integer of from 1 to 20, m is an integer of at least 3 and at most (2n+1); a is an integer of from 0 to 2; R3 is a hydrogen atom or a methyl group; R4 is a hydrogen atom or a C1-4 hydrocarbon group; X is —O— or —NH—; b is an integer of from 2 to 10; and c is an integer of from 0 to 2. CnFmH2n+1-m—SiR1a(—*)3-a  (A1) CH2═CR3C(O)—X—(CH2)b—SiR4c(—*)3-c  (A2)