公开(公告)号：US20200283662A1

公开(公告)日：2020-09-10

申请号：US16305371

申请日：2017-06-07

Applicant: TOKUYAMA CORPORATION

Inventor： Katsuhiro MORI ,  Toshimitsu HIRAREN ,  Junji MOMODA

IPC: C09J175/06 ,  C08G18/10 ,  C08G18/20 ,  C08G18/73 ,  C08G18/75 ,  C08G18/79 ,  C08L75/06 ,  B32B7/12 ,  B32B27/08 ,  B32B27/34 ,  B32B27/32 ,  G02B5/30 ,  G02B5/23

Abstract: To provide an adhesive composition capable of firmly bonding polymer sheets together, comprising: (I) 100 parts by mass of an end-unreactive urethane urea resin; and (III) 4.0 to 20 parts by mass of a polyisocyanate compound having at least two isocyanate groups in the molecule, wherein the polyisocyanate compound (III) contains (IIIA) a polyisocyanate compound having an isocyanate group bonded to secondary carbon and (IIIB) a polyisocyanate compound having 4 to 30 carbon atoms in the molecule other than the component (IIIA), and the amount of the component (IIIB) is 10 to 500 parts by mass based on 100 parts by mass of the component (IIIA).

公开(公告)号：US20220234072A1

公开(公告)日：2022-07-28

申请号：US17627237

申请日：2020-07-17

Applicant: TOKUYAMA CORPORATION

Inventor： Toshimitsu HIRAREN ,  Yoshihiro ASAHARA ,  Takashi TAMUKAI

IPC: B05D1/40 ,  B05D3/00 ,  B05D3/12 ,  G02B1/14 ,  G02B1/11

Abstract: The present invention provides a coating method including: a step of supplying a coating agent to a surface of a lens base material; a spreading step of spreading the coating agent supplied to the surface by rotation of the lens base material; a first removal step of removing at least a part of a liquid pool of the coating agent generated on a peripheral edge portion and/or a side surface portion of the lens base material by rotation of the lens base material after the spreading step; and a second removal step of removing the liquid pool remaining on the peripheral edge portion and/or the side surface portion of the lens base material by bringing an adsorption member into contact with at least the side surface of the lens base material after the first removal step. According to the present invention, it is possible to provide a coating method capable of obtaining a base material having a coating layer excellent in uniformity of film thickness by reducing the liquid pool of the coating agent generated on the peripheral edge portion and/or the side surface portion of the lens base material when the coating layer is formed on the surface of the base material by spin coating the coating agent.

公开(公告)号：US20240158647A1

公开(公告)日：2024-05-16

申请号：US18279710

申请日：2022-03-08

Applicant: TOKUYAMA CORPORATION

Inventor： Taichi HANASAKI ,  Masayuki MIYAZAKI ,  Toshimitsu HIRAREN ,  Katsuhiro MORI ,  Junji MOMODA

IPC: C09D5/29 ,  C08F289/00 ,  C08K5/3435 ,  C09D5/00 ,  C09D7/20 ,  C09D7/47 ,  C09D7/63 ,  C09D151/08 ,  C09D175/04

CPC classification number: C09D5/29 ,  C08F289/00 ,  C08K5/3435 ,  C09D5/002 ,  C09D7/20 ,  C09D7/47 ,  C09D7/63 ,  C09D151/08 ,  C09D175/04 ,  G02C7/102

Abstract: The present invention provides: a photochromic curable composition for providing a cured product having excellent durability and appearance; and a cured product (photochromic laminate) having a particularly favorable appearance. A photochromic curable composition according to an embodiment includes: (A1) a first hindered amine compound having at least one reactive group selected from the group consisting of a radically polymerizable group and a group reactive with a radically polymerizable group; (B) a radically polymerizable monomer comprising a polyrotaxane component (B1) having a radically polymerizable group while not having a piperidyl group; and (C) a photochromic compound.

公开(公告)号：US20210155830A1

公开(公告)日：2021-05-27

申请号：US17045384

申请日：2019-04-04

Applicant: TOKUYAMA CORPORATION

Inventor： Toshimitsu HIRAREN ,  Katsuhiro MORI ,  Junji MOMODA

IPC: C09J9/00 ,  C09J175/12 ,  C08L83/04 ,  C08G18/44 ,  C08G18/42 ,  B32B7/12 ,  B32B27/36 ,  C08G18/75

Abstract: The present invention includes: a photochromic adhesive composition containing (A) a photochromic compound having, as a substituent, a molecular chain having a molecular weight of 300 or more, and (B) an adhesive urethane (urea) resin, and having a softening point of 140 to 220° C., and a photochromic laminate using the adhesive composition. The invention provides the photochromic adhesive composition that functions as an adhesive layer for bonding optical sheets, and the photochromic laminate using the composition exhibits excellent photochromic characteristics, adhesiveness and workability

公开(公告)号：US20230272252A1

公开(公告)日：2023-08-31

申请号：US18136118

申请日：2023-04-18

Applicant: TOKUYAMA CORPORATION

Inventor： Katsuhiro MORI ,  Toshimitsu HIRAREN ,  Junji MOMODA

IPC: C09J175/04 ,  B32B7/12 ,  B32B27/08 ,  B32B27/32 ,  B32B27/34 ,  C08G18/10 ,  C08G18/20 ,  C08G18/73 ,  C08G18/75 ,  C08G18/79 ,  C08L75/06 ,  C09J175/06 ,  G02B5/23 ,  G02B5/30 ,  C09J175/02

CPC classification number: C09J175/04 ,  B32B7/12 ,  B32B27/08 ,  B32B27/32 ,  B32B27/34 ,  C08G18/10 ,  C08G18/2018 ,  C08G18/73 ,  C08G18/755 ,  C08G18/758 ,  C08G18/792 ,  C08L75/06 ,  C09J175/06 ,  G02B5/23 ,  G02B5/305 ,  C09J175/02 ,  B32B2551/00

Abstract: To provide an adhesive composition capable of firmly bonding polymer sheets together, comprising:



(I) 100 parts by mass of an end-unreactive urethane urea resin; and
(III) 4.0 to 20 parts by mass of a polyisocyanate compound having at least two isocyanate groups in the molecule, wherein the polyisocyanate compound (III) contains (IIIA) a polyisocyanate compound having an isocyanate group bonded to secondary carbon and (IIIB) a polyisocyanate compound having 4 to 30 carbon atoms in the molecule other than the component (IIIA), and the amount of the component (IIIB) is 10 to 500 parts by mass based on 100 parts by mass of the component (IIIA).

公开(公告)号：US20190004336A1

公开(公告)日：2019-01-03

申请号：US16065027

申请日：2016-12-22

Applicant: TOKUYAMA CORPORATION

Inventor： Katsuhiro MORI ,  Toshimitsu HIRAREN ,  Manami OSHIO

IPC: G02C7/10 ,  G02C7/12 ,  C08G18/10

Abstract: To provide a laminate comprising a pair of polycarbonate optical sheet or film which are laminated together through a polarizing film layer and an adhesive layer of a photochromic composition comprising (I) a polyurethane urea resin and (II) a photochromic compound and having excellent photochromic properties, adhesion, heat resistance, perspiration resistance and excellent adhesion to a lens substrate.

公开(公告)号：US20240241291A1

公开(公告)日：2024-07-18

申请号：US18606814

申请日：2024-03-15

Applicant: TOKUYAMA CORPORATION

Inventor： Katsuhiro MORI ,  Toshimitsu HIRAREN ,  Junji MOMODA

IPC: G02B1/04 ,  B32B7/12 ,  B32B23/08 ,  B32B27/08 ,  B32B27/28 ,  B32B27/30 ,  B32B27/34 ,  B32B27/36 ,  B32B27/40 ,  G02C7/02 ,  G02C7/10 ,  G02C7/12

CPC classification number: G02B1/041 ,  B32B7/12 ,  B32B23/08 ,  B32B27/08 ,  B32B27/283 ,  B32B27/306 ,  B32B27/308 ,  B32B27/34 ,  B32B27/36 ,  B32B27/40 ,  G02C7/02 ,  G02C7/102 ,  G02C7/12 ,  B32B2250/03 ,  B32B2250/05 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2307/412 ,  B32B2307/42 ,  B32B2551/00

Abstract: A functional lens comprising a functional laminate (A) having a functional layer (Ac) having photochromic properties and/or polarizability between a first optical sheet (Aa) and a second optical sheet (Ab) both made of a resin such as polyamide resin and a synthetic resin layer (B) made of a resin such as allyl resin or polythiourethane resin on the first optical sheet (Aa) and/or the second optical sheet (Ab) of the functional laminate (A) and having an adhesive strength between the first optical sheet (Aa) and/or the second optical sheet (Ab) and the synthetic resin layer (B) of not less than 50 N.

公开(公告)号：US20240182749A1

公开(公告)日：2024-06-06

申请号：US18278324

申请日：2022-03-08

Applicant: TOKUYAMA CORPORATION

Inventor： Taichi HANASAKI ,  Masayuki MIYAZAKI ,  Toshimitsu HIRAREN ,  Katsuhiro MORI ,  Junji MOMODA

IPC: C09D183/10 ,  C08F290/14 ,  C09D7/63 ,  C09K9/02 ,  G02B1/04 ,  G02B5/23

CPC classification number: C09D183/10 ,  C08F290/148 ,  C09D7/63 ,  C09K9/02 ,  G02B1/04 ,  G02B5/23

Abstract: The present invention provides a photochromic curable composition capable of providing a cured product excellent in appearance, a photochromic optical article including the cured product, and a method for producing the same. According to an embodiment, there is provided a photochromic curable composition including (A) a siloxane having an acyclic polysiloxane bond and at least one of a radically polymerizable group and a group reactive with a radically polymerizable group, (B) a radically polymerizable monomer component, and (C) a photochromic compound.