公开(公告)号：US20220106500A1

公开(公告)日：2022-04-07

申请号：US17355292

申请日：2021-06-23

Applicant: NITTO DENKO CORPORATION

Inventor： Masayuki Okamoto ,  Satoshi Mita ,  Yoshimi Konno ,  Taiyan Jiang ,  Tetsuro Ikeda

IPC: C09J4/00 ,  G02F1/1335 ,  G02F1/13363 ,  G02B5/30 ,  C08F2/48

Abstract: An active-energy-ray-curable adhesive composition comprises at least one or more radical polymerizable compounds. At the time of defining a total amount of the radical polymerizable compound(s) as 100% by weight, the composition comprises one or more alkyl (meth)acrylates (A) (each) having 10 to 20 carbon atoms in an amount of 15% or more by weight. The active-energy-ray-curable adhesive composition preferably comprises, as the alkyl (meth)acrylate(s) (A), an alkyl (meth)acrylate (A1) having 10 to 14 carbon atoms, and an alkyl (meth)acrylate (A2) having 15 to 20 carbon atoms. A ratio by weight of the component (A1) to the component (A2) (A1/A2) is preferably from 1.0/9.0 to 4.0/6.0.

公开(公告)号：US20210317337A1

公开(公告)日：2021-10-14

申请号：US17352429

申请日：2021-06-21

Applicant: NITTO DENKO CORPORATION

Inventor： Masayuki Okamoto ,  Satoshi Mita ,  Yoshimi Konno ,  Taiyan Jiang ,  Tetsuro Ikeda

IPC: C09J4/00 ,  G02B5/30 ,  G02F1/1335 ,  G02F1/13363 ,  C09J11/06 ,  G02B1/14 ,  C09J5/00 ,  C09J133/06 ,  C09J133/14 ,  C09J133/24 ,  C09J135/02

Abstract: An active-energy-ray-curable adhesive composition comprises at least radical polymerizable compounds. The radical polymerizable compounds comprise a component A having a log Pow of −2 to 2, and a component B having a log Pow more than 7, each of these log Pow values representing an octanol/water distribution coefficient. The component A preferably comprises at least one nitrogen-containing monomer selected from the group consisting of (meth)acrylamide derivatives, amino-group-containing monomers, and nitrogen-containing and heterocycle-containing vinyl monomers. The component B preferably comprises an alkyl (eth)acrylate having 18 to 20 carbon atoms.

公开(公告)号：US20210178740A1

公开(公告)日：2021-06-17

申请号：US16759811

申请日：2018-10-25

Applicant: NITTO DENKO CORPORATION

Inventor： Takeshi Murashige ,  Junichi Inagaki ,  Akiko Sugino ,  Tetsuro Ikeda

IPC: B32B37/26 ,  G02B1/14 ,  G02B1/08 ,  B32B37/12

Abstract: Provided is a laminate that includes a thin glass film and is hence excellent in flexibility, and that is excellent in puncture resistance. A laminate for an image display apparatus of the present invention includes: a glass film; and a resin layer arranged on one side of the glass film, wherein the glass film has a thickness of more than 50 μm and 150 μm or less, wherein the laminate for an image display apparatus has a puncture strength measured in conformity with JIS Z 1707:1997 of more than 2 kg and 50 kg or less, and wherein the laminate for an image display apparatus has a bending radius of from 15 mm to 200 mm.

公开(公告)号：US20190136101A1

公开(公告)日：2019-05-09

申请号：US16094293

申请日：2017-03-06

Applicant: NITTO DENKO CORPORATION

Inventor： Masayuki Okamoto ,  Satoshi Mita ,  Yoshimi Konno ,  Taiyan Jiang ,  Tetsuro Ikeda

IPC: C09J139/04 ,  C09J133/06 ,  C09J133/14 ,  C09J5/00 ,  G02B1/14 ,  G02B5/30 ,  B32B7/12 ,  B32B37/12

Abstract: A polarizing film, wherein transparent protective films are laid, respectively, on/over both surfaces of a polarizer to interpose an adhesive layer (a) and an adhesive layer (b), respectively, between both surfaces of a polarizer, and transparent protective films. The adhesive layer (a) on/over one of both the surfaces has a glass transition temperature of −60° C. or higher and lower than 40° C. The adhesive layer (b) on/over the other surface has a glass transition temperature of 40° C. or higher. The adhesive layer (a) is a layer formed in the form of a cured product layer yielded by radiating an active energy ray to an active-energy-ray-curable adhesive composition (a). The active-energy-ray-curable adhesive composition (a) comprises, as radical polymerizable compounds, a component A having a logPow of −2 to 2, and a component B having a logPow more than 7, these logPow values being each an octanol/water distribution coefficient.

公开(公告)号：US20190136091A1

公开(公告)日：2019-05-09

申请号：US16094305

申请日：2017-03-06

Applicant: NITTO DENKO CORPORATION

Inventor： Masayuki Okamoto ,  Satoshi Mita ,  Yoshimi Konno ,  Taiyan Jiang ,  Tetsuro Ikeda

IPC: C09J4/00 ,  G02B5/30 ,  G02F1/13363

Abstract: An active-energy-ray-curable adhesive composition comprises at least one or more radical polymerizable compounds. At the time of defining a total amount of the radical polymerizable compound(s) as 100% by weight, the composition comprises one or more alkyl (meth) acrylates (A) (each) having 10 to 20 carbon atoms in an amount of 15% or more by weight. The active-energy-ray-curable adhesive composition preferably comprises, as the alkyl (meth)acrylate(s) (A), an alkyl (meth)acrylate (A1) having 10 to 14 carbon atoms, and an alkyl (meth)acrylate (A2) having 15 to 20 carbon atoms. A ratio by weight of the component (A1) to the component (A2) (A1/A2) is preferably from 1.0/9.0 to 4.0/6.0.

公开(公告)号：US11760077B2

公开(公告)日：2023-09-19

申请号：US16759811

申请日：2018-10-25

Applicant: NITTO DENKO CORPORATION

Inventor： Takeshi Murashige ,  Junichi Inagaki ,  Akiko Sugino ,  Tetsuro Ikeda

IPC: B32B17/10 ,  G02B1/14 ,  G02B1/08 ,  B32B7/022 ,  B32B37/26 ,  B32B37/12 ,  G09F9/30

CPC classification number: B32B37/26 ,  B32B7/022 ,  B32B17/10 ,  B32B17/10165 ,  B32B37/12 ,  G02B1/08 ,  G02B1/14 ,  B32B2307/51 ,  B32B2457/20 ,  G09F9/301

Abstract: Provided is a laminate that includes a thin glass film and is hence excellent in flexibility, and that is excellent in puncture resistance. A laminate for an image display apparatus of the present invention includes: a glass film; and a resin layer arranged on one side of the glass film, wherein the glass film has a thickness of more than 50 μm and 150 μm or less, wherein the laminate for an image display apparatus has a puncture strength measured in conformity with JIS Z 1707:1997 of more than 2 kg and 50 kg or less, and wherein the laminate for an image display apparatus has a bending radius of from 15 mm to 200 mm.

公开(公告)号：US10901129B2

公开(公告)日：2021-01-26

申请号：US16094303

申请日：2017-03-06

Applicant: NITTO DENKO CORPORATION

Inventor： Masayuki Okamoto ,  Satoshi Mita ,  Yoshimi Konno ,  Taiyan Jiang ,  Tetsuro Ikeda

IPC: C09J4/00 ,  C09J133/00 ,  B32B7/12 ,  C09J11/06 ,  G02B5/30 ,  G02F1/1335 ,  B29D11/00 ,  G02F1/13363 ,  C09J7/38

Abstract: A polarizing film, wherein transparent protective films are laid, respectively, on/over both surfaces of a polarizer to interpose an adhesive layer (a) and an adhesive layer (b), respectively, between both the surfaces and the transparent protective films. The adhesive layer (a) has a glass transition temperature of −60° C. or higher and lower than 40° C. The adhesive layer (b) has a glass transition temperature of 40° C. or higher. The adhesive layer (a) is a layer formed in the form of a cured product layer yielded by radiating an active energy ray to an active-energy-ray-curable adhesive composition (a). The active-energy-ray-curable adhesive composition (a) comprises at least one or more radical polymerizable compounds, and when a total amount of the radical polymerizable compound(s) is defined as 100% by weight, one or more alkyl (meth)acrylates (A) (each) having 10 to 20 carbon atoms are comprised in a proportion of 15% or more by weight.

公开(公告)号：US20190309193A1

公开(公告)日：2019-10-10

申请号：US16314929

申请日：2017-06-26

Applicant: NITTO DENKO CORPORATION

Inventor： Yasuaki Okada ,  Takeshi Saito ,  Keisuke Kimura ,  Tetsuro Ikeda

IPC: C09J7/38 ,  G02B1/14 ,  G02B5/30 ,  C09J11/04

Abstract: A pressure-sensitive-adhesive layer attached polarizing film comprises a polarizing film in which a transparent protective film is laid on/over at least one surface of a polarizer to interpose an adhesive layer between the surface and the transparent protective film, and a pressure-sensitive-adhesive layer laminated on a transparent protective film side of the polarizing film. The adhesive-layer-laid surface of the polarizer is subjected to an activating treatment. The adhesive layer is a cured product layer of an adhesive composition. The adhesive composition comprises an active-energy-ray-curable component, and a shrinkage inhibitor having a structural formula having an M-O bond wherein M is silicon, titanium, aluminum or zirconium, and O represents an oxygen atom.

公开(公告)号：US20190137673A1

公开(公告)日：2019-05-09

申请号：US16094303

申请日：2017-03-06

Applicant: NITTO DENKO CORPORATION

Inventor： Masayuki Okamoto ,  Satoshi Mita ,  Yoshimi Konno ,  Taiyan Jiang ,  Tetsuro Ikeda

IPC: G02B5/30 ,  G02F1/1335 ,  G02F1/13363 ,  B29D11/00

Abstract: A polarizing film, wherein transparent protective films are laid, respectively, on/over both surfaces of a polarizer to interpose an adhesive layer (a) and an adhesive layer (b), respectively, between both the surfaces and the transparent protective films. The adhesive layer (a) has a glass transition temperature of -60° C. or higher and lower than 40° C. The adhesive layer (b) has a glass transition temperature of 40° C. or higher. The adhesive layer (a) is a layer formed in the form of a cured product layer yielded by radiating an active energy ray to an active-energy-ray-curable adhesive composition (a). The active-energy-ray-curable adhesive composition (a) comprises at least one or more radical polymerizable compounds, and when a total amount of the radical polymerizable compound(s) is defined as 100% by weight, one or more alkyl (meth)acrylates (A) (each) having 10 to 20 carbon atoms are comprised in a proportion of 15% or more by weight.

公开(公告)号：US20190055432A1

公开(公告)日：2019-02-21

申请号：US15764115

申请日：2016-09-29

Applicant: NITTO DENKO CORPORATION

Inventor： Ryo Kanno ,  Tatsuya Yamasaki ,  Yuto Saruhashi ,  Ryuta Tomoyose ,  Takeshi Saito ,  Tetsuro Ikeda

IPC: C09J4/00 ,  B32B7/12 ,  B32B37/12 ,  B32B37/18 ,  B32B27/08 ,  B32B27/30 ,  B32B38/00 ,  C09J135/02 ,  C09J5/00 ,  C08F222/10

Abstract: A curing type adhesive composition for polarization film, contains an active energy ray curable component (X), at least one organometallic compound (A) selected from the group consisting of a metal alkoxide and a metal chelate, and a polymerizable compound (B) having a polymerizable functional group and a carboxyl group. It is preferred that a metal of the organometallic compound (A) is titanium. The curing type adhesive composition for polarizing film preferably contains, as the organometallic compound (A), the metal alkoxide, and an organic group which the metal alkoxide has having three or more carbon atoms. The curing type adhesive composition for polarizing film contains, as the organometallic compound (A), the metal chelate, an organic group which the metal chelate has having four or more carbon atoms.