公开(公告)号：US20240100810A1

公开(公告)日：2024-03-28

申请号：US18271925

申请日：2022-01-12

Applicant: TOKUYAMA CORPORATION

Inventor： Takao NOGUCHI ,  Katsuhiro MORI ,  Junji MOMODA

IPC: B32B27/06 ,  B32B27/40 ,  C08L75/08

CPC classification number: B32B27/06 ,  B32B27/40 ,  C08L75/08 ,  B32B2250/02 ,  B32B2307/42 ,  B32B2375/00 ,  B32B2551/00

Abstract: The present invention aims to provide a resin composition having excellent photochromic properties and mechanical properties.
The present invention relates to a resin composition containing (i) a urethane-based resin having a propylene glycol chain in a molecular chain thereof and (ii) a photochromic compound, wherein the intensity ratio of PMIpst to PMIcp (PMIpst/PMIcp) is 8.0 or more and 40.0 or less when PMIpst indicates the total spectral intensity of 16 ppm or more and 20 ppm or less including the spectral intensity of a carbon atom of a methyl group in the propylene glycol chain as measured by 13C-PST/MAS NMR and PMIcp indicates the total spectral intensity of 16 ppm or more and 20 ppm or less including the spectral intensity of the carbon atom of the methyl group in the propylene glycol chain as measured by 13C-CP/MAS NMR.

公开(公告)号：US20230242808A1

公开(公告)日：2023-08-03

申请号：US17768762

申请日：2020-10-14

Applicant: TOKUYAMA CORPORATION

Inventor： Masayuki MIYAZAKI ,  Junji TAKENAKA ,  Srinivas VENU ,  Junji MOMODA ,  Katsuhiro MORI

IPC: C09K9/02 ,  C09D4/06 ,  C09D7/63 ,  C07D497/10 ,  C07D311/96 ,  C07F7/08 ,  G02B1/04 ,  G02B1/10 ,  G02B5/23

CPC classification number: C09K9/02 ,  C09D4/06 ,  C09D7/63 ,  C07D497/10 ,  C07D311/96 ,  C07F7/0812 ,  G02B1/041 ,  G02B1/10 ,  G02B5/23 ,  C09K2211/1018 ,  C08K5/46

Abstract: A photochromic compound of the present invention comprises at least two monovalent photochromic basic structure groups PC including a T-type photochromic moiety, the photochromic basic structure groups being bonded to an organic group having a non-SO aromatic ring containing neither a sulfur atom nor an oxygen atom.

公开(公告)号：US20220162486A1

公开(公告)日：2022-05-26

申请号：US17599830

申请日：2020-04-03

Applicant: TOKUYAMA CORPORATION

Inventor： Katsuhiro MORI ,  Takao NOGUCHI ,  Junji MOMODA

IPC: C09J175/04 ,  C09K9/02 ,  C09J11/06 ,  C08G18/75 ,  C08G18/38 ,  G02C7/10

Abstract: The present invention relates to a photochromic optical article including a pair of optical article plates bonded together through an adhesive layer containing a photochromic compound and at least one resin selected from a urethane resin, an epoxy resin, and an acrylic resin, wherein a deviation of the thickness of the adhesive layer on a concentric circle from the central point of the pair of optical article plates is within ±10%.
In accordance with the present invention, in the photochromic optical article formed of a pair of optical article plates bonded together through an adhesive layer, a photochromic optical article in which the thickness of the photochromic adhesive layer is prescribed, and which is free from problems, such as a lowering of the appearance quality, can be provided.

公开(公告)号：US20180244931A1

公开(公告)日：2018-08-30

申请号：US15757291

申请日：2016-08-26

Applicant: TOKUYAMA CORPORATION

Inventor： Katsuhiro MORI ,  Yasutomo SHIMIZU ,  Junji MOMODA

IPC: C09D5/29 ,  G02B5/23 ,  C09D175/04 ,  C09K9/02 ,  C09B11/02 ,  C07D311/78

CPC classification number: C09D5/29 ,  C07D311/78 ,  C08G83/007 ,  C09B11/02 ,  C09D171/00 ,  C09D175/00 ,  C09D175/04 ,  C09D201/005 ,  C09K9/02 ,  C09K2211/1007 ,  C09K2211/1018 ,  G02B5/23 ,  G02C7/10 ,  G02C7/102

Abstract: To provide a photochromic coating composition comprising (A) a polyrotaxane having a composite molecular structure formed by an axial molecule and a plurality of cyclic molecules clathrating the axial molecule, (B) a photochromic compound and (C) a polyurethane resin and/or precursor thereof.This composition provides a laminate which exhibits excellent photochromic properties (color optical density and fading speed), moldability and surface hardness.

公开(公告)号：US20180030341A1

公开(公告)日：2018-02-01

申请号：US15550929

申请日：2016-03-08

Applicant: TOKUYAMA CORPORATION

Inventor： Yasutomo SHIMIZU ,  Katsuhiro MORI ,  Junji MOMODA

IPC: C09K9/02 ,  C08G18/38 ,  C08G18/48 ,  G02B5/22 ,  C08G18/66 ,  G02C7/10 ,  G02B5/23 ,  C08G18/76 ,  C08G18/64

Abstract: A process for producing a photochromic cured body by curing a photochromic composition comprising (A) a polyiso(thio)cyanate compound having at least two isocyanate groups and/or isothiocyanate groups in one molecule, a poly(thi)ol compound having at least two hydroxyl groups and/or thiol groups in one molecule, (C) a mono(thi)ol compound having one hydroxy group or thiol group in one molecule, and a photochromic compound.

公开(公告)号：US20160222285A1

公开(公告)日：2016-08-04

申请号：US15025115

申请日：2014-11-07

Applicant: TOKUYAMA CORPORATION

Inventor： Yasutomo SHIMIZU ,  Katsuhiro MORI ,  Junji MOMODA

IPC: C09K9/02 ,  G02B5/23 ,  G02C7/10 ,  B32B7/12

CPC classification number: C09K9/02 ,  B32B7/12 ,  B32B2250/02 ,  B32B2255/26 ,  B32B2305/72 ,  B32B2307/40 ,  B32B2307/412 ,  B32B2551/00 ,  C08B37/0015 ,  C08F290/10 ,  C08F299/00 ,  C08G83/007 ,  C08L71/02 ,  G02B5/23 ,  G02C7/102 ,  G02C2202/16

Abstract: A photochromic composition comprising (A) a polyrotaxane having a composite molecular structure composed of an axial molecule and a plurality of cyclic molecules clathrating the axial molecule and (B) a photochromic compound.

Abstract translation: 一种光致变色组合物，其包含（A）具有由轴向分子和包围所述轴向分子的多个环状分子组成的复合分子结构的聚轮烷和（B）光致变色化合物。