公开(公告)号：US20240246024A1

公开(公告)日：2024-07-25

申请号：US18628880

申请日：2024-04-08

Applicant: AGC Inc.

Inventor： Ryohei KOGUCHI ,  Toyokazu SUZUKI ,  Shogo FUJISAKI ,  Takeaki ARAI ,  Chitoshi SUZUKI

IPC: B01D53/14

CPC classification number: B01D53/1475 ,  B01D53/1493 ,  B01D2257/504

Abstract: Provided are, an acidic gas removing agent with smaller variation in amounts of carbon dioxide absorption even in the coexistence of water in removing carbon dioxide in a gas; an acidic gas removing method; an absorption device provided with the acidic gas removing agent; and an acidic gas cleaning device. Used is an acidic gas removing agent comprising one or more selected from the group consisting of a hydroxy group-containing compound having a number-average molecular weight of 500 or more and a derivative of the hydroxy group-containing compound.

公开(公告)号：US20240199929A1

公开(公告)日：2024-06-20

申请号：US18413602

申请日：2024-01-16

Applicant: AGC Inc.

Inventor： Hitoshi SHIMOMA ,  Makito NAKAMURA ,  Chitoshi SUZUKI

IPC: C09J175/08 ,  C08G18/10 ,  C08G18/48

CPC classification number: C09J175/08 ,  C08G18/10 ,  C08G18/485 ,  C08G2170/00 ,  C09J2475/00

Abstract: There is provided a two-component adhesive composition that is excellent in the tensile characteristics of a cured product, has a small temperature dependence of viscoelastic characteristics (storage modulus), and can stably exhibit adhesiveness in a wide temperature region, and a cured product. A two-component adhesive composition including: a main agent including an isocyanate group-terminated urethane prepolymer; and a curing agent including a polyoxyalkylene polymer in which a number of functional groups is 4 or more, wherein a number average molecular weight of the polyoxyalkylene polymer is 6000 or more.

公开(公告)号：US20220282025A1

公开(公告)日：2022-09-08

申请号：US17664238

申请日：2022-05-20

Applicant: AGC Inc.

Inventor： Makito NAKAMURA ,  Chitoshi SUZUKI ,  Takayuki SASAKI ,  Nikhil MISHRA

IPC: C08G18/67 ,  C08G18/28 ,  C08G18/10 ,  B33Y70/00 ,  B33Y40/20

Abstract: Provided are a resin composition with low viscosity and a resin cured product. The resin composition comprises a first monomer and a second monomer, wherein the proportion of the first monomer with respect to the total mass of the first monomer and the second monomer is 50 to 98% by mass, and the resin cured product is of the resin composition.

公开(公告)号：US20240317680A1

公开(公告)日：2024-09-26

申请号：US18735267

申请日：2024-06-06

Applicant: AGC Inc.

Inventor： Makito NAKAMURA ,  Chitoshi SUZUKI

IPC: C07C271/22 ,  C07C269/02 ,  C08G18/10 ,  C08G18/32 ,  C08G18/67 ,  C08G18/75 ,  C09J175/04

CPC classification number: C07C271/22 ,  C07C269/02 ,  C08G18/10 ,  C08G18/3215 ,  C08G18/6755 ,  C08G18/755 ,  C09J175/04

Abstract: Provided is a urethane (meth)acrylate that can be cured to form a cured product excellent in stretchability, flexibility, and foldability, as well as shape recoverability when folded. The urethane (meth)acrylate of the present invention is represented by the following formula (1) and has a number average molecular weight (Mn) of 16000 to 60000, a ratio of a weight average molecular weight (Mw) to the (Mn), Mw/Mn, of 1.0 to 1.2, and a urethane group mass content of 0.18 to 0.73 mass % based on a total mass of the urethane (meth)acrylate:


R2—NHC(═O)O—R1—OC(═O)NH—R3  (1)



wherein R1 is a residual group formed by removing two hydroxy groups from a molecule of a diol selected from the group consisting of a polyether diol, a polyester diol, and a polycarbonate diol; and R2 and R3 are each independently a residual group formed by removing an isocyanate group from a monoisocyanate having one or more (meth)acryloyloxy groups per molecule.

公开(公告)号：US20210371574A1

公开(公告)日：2021-12-02

申请号：US17399512

申请日：2021-08-11

Applicant: AGC Inc.

Inventor： Makito NAKAMURA ,  Haru KAWASAKI ,  Hitoshi SHIMOMA ,  Chitoshi SUZUKI ,  Hiroshi WADA

IPC: C08G18/12 ,  C09J7/38 ,  C09J175/08 ,  C08G18/48 ,  A61B5/00

Abstract: To provide a polyurethane prepolymer whereby a pressure-sensitive adhesive having excellent moisture permeability and also having both low adhesion to skin and high adhesion to a substrate can be obtained, a pressure-sensitive adhesive, an adhesive skin patch, a pressure-sensitive adhesive tape, a wearable device and a wearable device kit.
A hydroxy group-terminated polyurethane prepolymer which is obtained by reacting an oxyalkylene polymer A having an average number of hydroxy groups per molecule of from 2.1 to 3, an oxyalkylene polymer B having one hydroxy group per molecule, and a diisocyanate compound, wherein the number average molecular weight of the oxyalkylene polymer B is at least 5,000, and the content of ethylene oxide units in the hydroxy group-terminated polyurethane prepolymer is more than 10 mass %, a pressure-sensitive adhesive, an adhesive skin patch, a pressure-sensitive adhesive tape, a wearable device and a wearable device kit.

公开(公告)号：US20240317925A1

公开(公告)日：2024-09-26

申请号：US18735272

申请日：2024-06-06

Applicant: AGC Inc.

Inventor： Makito NAKAMURA ,  Chitoshi SUZUKI

IPC: C08G18/67 ,  C08G18/10 ,  C08G18/32 ,  C08G18/75 ,  C09D175/04

CPC classification number: C08G18/6755 ,  C08G18/10 ,  C08G18/3215 ,  C08G18/755 ,  C09D175/04

Abstract: Provided is a urethane (meth)acrylate that has a viscosity excellent in handling and can be cured to form a cured product having a large tensile strength and being excellent in toughness and shape recoverability when folded as well as shape retention. The urethane (meth)acrylate of the present invention is represented by the following formula (1) and having a number average molecular weight (Mn) of 7500 to 60000:






wherein R1 is an n-valent residual group formed by removing a hydroxy group from a polyol having a number n of hydroxy groups per molecule, the polyol is selected from the group consisting of a polyether polyol, a polyester polyol, and a polycarbonate polyol; and n is 3 or more; and a number n of R2 per molecule are each independently a residual group formed by removing an isocyanate group from a monoisocyanate having one or more (meth)acryloyloxy groups per molecule.

公开(公告)号：US20240199930A1

公开(公告)日：2024-06-20

申请号：US18413658

申请日：2024-01-16

Applicant: AGC Inc.

Inventor： Hitoshi SHIMOMA ,  Makito NAKAMURA ,  Chitoshi SUZUKI

IPC: C09J175/08 ,  C08G18/10

CPC classification number: C09J175/08 ,  C08G18/10 ,  C08G2170/00 ,  C08J2475/00

Abstract: There is provided a one-component adhesive composition that is excellent in the heat resistance, moist heat resistance, and creep resistance at high temperature (90° C.) of a cured product, can maintain adhesiveness even under high temperature, has a small temperature dependence of viscoelastic characteristics (storage modulus), and can stably exhibit adhesiveness in a wide temperature region, and a cured product. A one-component adhesive composition including an isocyanate group-terminated urethane prepolymer obtained by reacting a polyoxyalkylene polymer with a polyisocyanate compound, wherein the polyoxyalkylene polymer has a functional group that can react with an isocyanate group, and has a number average molecular weight of 8000 or more, and in the polyoxyalkylene polymer, a content proportion of oxyethylene groups to a total amount of oxyalkylene groups is 5% by mass or more and 60% by mass or less.

公开(公告)号：US20240084066A1

公开(公告)日：2024-03-14

申请号：US18508329

申请日：2023-11-14

Applicant: AGC Inc.

Inventor： Makito NAKAMURA ,  Chitoshi SUZUKI ,  Nikhil MISHRA

IPC: C08F290/06 ,  B33Y70/00 ,  B33Y80/00

CPC classification number: C08F290/067 ,  B33Y70/00 ,  B33Y80/00

Abstract: Provided are a resin composition for 3D printer which is low in viscosity, is good in handleability by 3D printers and can give shaped products excellent in flexibility in a broad temperature range, and a method for producing the same, and a cured product of the resin composition. The resin composition for 3D printer of the present invention contains a first monomer, a second monomer, and a photopolymerization initiator, wherein the first monomer is a reaction product of a particular polyether polyol, a polyisocyanate and a particular compound having a (meth)acryloyl group; the total number of moles of the hydroxyl group of the polyether polyol and a group reactive with isocyanate group of the compound having a (meth)acryloyl group is equal to the number of moles of the isocyanate group of the polyisocyanate; and the second monomer is a (meth)acrylic compound.

公开(公告)号：US20230348765A1

公开(公告)日：2023-11-02

申请号：US18339502

申请日：2023-06-22

Applicant: AGC Inc.

Inventor： Makito NAKAMURA ,  Chitoshi SUZUKI ,  Yuki MATSUMOTO

IPC: C09J175/08 ,  C08L75/08 ,  C09J7/38

CPC classification number: C09J175/08 ,  C08L75/08 ,  C09J7/38 ,  C09J2301/302 ,  C09J2301/312

Abstract: An aqueous dispersion including a hydroxyl-terminated urethane prepolymer obtained by reacting an oxyalkylene polymer A in which an average number of hydroxyl groups per molecule is more than 2.0 and 3.0 or less, an oxyalkylene polymer B in which an average number of hydroxyl groups per molecule is 1.2 or more and 2.0 or less, and a diisocyanate compound, where a content proportion of oxyethylene groups to a total amount of oxyalkylene groups in the oxyalkylene polymer A is 15% by mass or more, a content proportion of oxyethylene groups to a total amount of oxyalkylene groups in the oxyalkylene polymer B is 15% by mass or more, and a content proportion of oxyethylene groups to a total amount of oxyalkylene groups in the hydroxyl-terminated urethane prepolymer is more than 20% by mass and 70% by mass or less.