公开(公告)号：US12071573B2

公开(公告)日：2024-08-27

申请号：US16967504

申请日：2019-01-28

Applicant: Nitto Denko Corporation

Inventor： Naofumi Kosaka ,  Yosuke Shimizu ,  Satoshi Honda ,  Taiki Shimokuri ,  Shou Takarada ,  Masayuki Satake ,  Kenichi Okada ,  Atsushi Takashima ,  Ginji Mizuhara ,  Masayuki Okamoto ,  Ryoko Asai

IPC: C09J7/38 ,  B32B7/06 ,  B32B27/18 ,  B32B27/30 ,  B32B37/12 ,  B32B37/18 ,  B32B38/10 ,  C09J11/06 ,  C09J11/08 ,  C09J133/08

CPC classification number: C09J7/385 ,  B32B7/06 ,  B32B27/18 ,  B32B27/308 ,  B32B37/12 ,  B32B37/182 ,  B32B38/10 ,  C09J11/06 ,  C09J11/08 ,  C09J133/08 ,  B32B2037/1276 ,  B32B2307/728 ,  B32B2333/12 ,  B32B2405/00 ,  C09J2301/408 ,  C09J2301/502 ,  C09J2433/00 ,  C09J2467/006

Abstract: Provided is a PSA sheet having a PSA layer. The PSA layer includes a layer A forming at least one surface thereof. The PSA sheet has an adhesive strength N0 of 2.0 N/10 mm or greater, after one day at room temperature following application of the layer A side to a surface of an alkaline float glass plate as an adherend having a contact angle of 5°-10° with distilled water; has an N1 to N0 reduction rate of 30% or lower, wherein N1 is a water-resistant adhesive strength measured after stored at room temperature for one day, immersed in water for 30 minutes, taken out from the water and then residual water is wiped off, and has an N2 to NO reduction rate of 40% or higher, wherein N2 is a water-peel strength measured after stored at room temperature for one day, 20 μL distilled water is dropped onto the adherend and is allowed to enter a PSA layer/adherend interfacial edge. N2 is measured at a tensile speed of 300 mm/min at a peel angle of 180°.

公开(公告)号：US11970644B2

公开(公告)日：2024-04-30

申请号：US16967517

申请日：2019-01-28

Applicant: Nitto Denko Corporation

Inventor： Naofumi Kosaka ,  Yosuke Shimizu ,  Satoshi Honda ,  Taiki Shimokuri ,  Shou Takarada ,  Masayuki Satake ,  Kenichi Okada ,  Atsushi Takashima ,  Ginji Mizuhara

IPC: B32B43/00 ,  B32B7/06 ,  B32B7/12 ,  C09J5/02 ,  C09J7/38 ,  C09J133/08

CPC classification number: C09J7/385 ,  B32B7/06 ,  B32B7/12 ,  B32B43/006 ,  C09J5/02 ,  C09J133/08 ,  B32B2307/42 ,  C09J2301/312 ,  C09J2301/416 ,  C09J2301/502 ,  Y10T156/1111 ,  Y10T156/1126 ,  Y10T156/1928

Abstract: Provided is a method for peeling a PSA sheet adhered on a polarizing plate. The PSA sheet has a PSA layer. The PSA layer includes a layer A forming at least one surface of the PSA layer. Of the polarizing plate, the surface to which the PSA sheet is adhered is corona-treated or plasma-treated. The peeling method includes a water-peel step in which the PSA sheet is peeled from the polarizing plate, in a state where an aqueous liquid exits at the interface between the polarizing plate and the PSA sheet at the front line of peeling the PSA sheet from the polarizing plate, with the aqueous liquid allowed to further enter the interface following the movement of the peel front line.

公开(公告)号：US11236256B2

公开(公告)日：2022-02-01

申请号：US15768794

申请日：2016-08-22

Applicant: NITTO DENKO CORPORATION

Inventor： Kaori Akamatsu ,  Aya Nagatomo ,  Atsushi Takashima

IPC: C09J9/02 ,  B32B43/00 ,  C09J133/00 ,  B32B27/00 ,  C09J201/00 ,  B32B27/30 ,  C09J133/08 ,  B32B27/20 ,  B32B27/18 ,  B32B7/06 ,  C09J5/00 ,  C09J7/29 ,  C09J11/04 ,  C09J11/06 ,  C09J7/30 ,  B32B7/12 ,  C08K3/16 ,  C08K5/17 ,  C08K5/19

Abstract: A double-sided adhesive sheet has a laminate structure including a first adhesive layer containing an electrolyte, a second adhesive layer, and a conduction substrate. A double-sided adhesive sheet joined body includes, for example, an adhesive sheet having such a laminate structure, a first conductive adherend to which the first adhesive layer adheres, and a second adherend to which the second adhesive layer adheres. A method for joining/separating adherends includes joining first and second adherends to each other via the adhesive sheet, then applying a voltage to the first adhesive layer so as to generate a potential difference in a thickness direction of the first adhesive layer, and separating the first and second adherends from each other.

公开(公告)号：US20150376475A1

公开(公告)日：2015-12-31

申请号：US14843851

申请日：2015-09-02

Applicant: NITTO DENKO CORPORATION

Inventor： Asami Doi ,  Atsushi Takashima

IPC: C09J133/10 ,  C09J133/08

CPC classification number: C09J133/10 ,  C08L101/12 ,  C09J133/08 ,  C09J133/26 ,  C09J201/00

Abstract: The purpose of the present invention is to provide a polymer composition which enables the steady and easy production of a temperature-responsive sheet. Provided is a polymer composition comprising a water-dispersible side-chain crystalline polymer and a water-dispersible amorphous polymer.

Abstract translation: 本发明的目的是提供能够稳定且容易地生产温度敏感性片材的聚合物组合物。 提供了包含水分散性侧链结晶聚合物和水分散性无定形聚合物的聚合物组合物。

公开(公告)号：US12209209B2

公开(公告)日：2025-01-28

申请号：US17282530

申请日：2019-10-03

Applicant: NITTO DENKO CORPORATION

Inventor： Atsushi Takashima ,  Ginji Mizuhara ,  Hiromitsu Morishita

IPC: C09J7/21 ,  B32B7/12 ,  B32B37/00 ,  B32B37/10 ,  B32B37/12 ,  C09J5/00 ,  C09J7/38 ,  C09J133/08 ,  D06M15/263 ,  D06M101/32

Abstract: The present invention relates to a method of producing a bonded body in which members are allowed to bond to each other with a yarn-like adhesive body, and at least a part of a bonding region, which is a portion where members are allowed to bond to each other, has a bent shape, and the members are allowed to bond to each other with the yarn-like adhesive body bent according to a shape of the bonding region.

公开(公告)号：US12122630B2

公开(公告)日：2024-10-22

申请号：US17418918

申请日：2019-12-23

Applicant: NITTO DENKO CORPORATION

Inventor： Ginji Mizuhara ,  Atsushi Takashima

IPC: B29C65/00 ,  B65H37/02 ,  B65H57/28

CPC classification number: B65H37/02 ,  B65H57/28 ,  B29C66/4722 ,  B29C66/8616 ,  B65H2701/377

Abstract: An adhesive body delivery device includes a main body, a turning portion, and a press-bonding portion; the turning portion is mounted to the main body to be relatively turnable around a first turning axis A1; the press-bonding portion is mounted to the turning portion at a predetermined mounting position, and is turnable in conjunction with the turning portion; the press-bonding portion is configured to deliver an adhesive body at a predetermined delivery position P, and is configured to stick the adhesive body to a target object while press-bonding the adhesive body; a predetermined distance D is ensured between the first turning axis A1 of the turning portion and the mounting position; and the press-bonding portion is configured to turn around a second turning axis A2 passing through the mounting position and being parallel to the first turning axis A1.

公开(公告)号：US11279855B2

公开(公告)日：2022-03-22

申请号：US15768786

申请日：2016-08-17

Applicant: NITTO DENKO CORPORATION

Inventor： Kaori Akamatsu ,  Shigeki Ishiguro ,  Yoshiko Ogino ,  Atsushi Takashima ,  Aya Nagatomo ,  Kaori Mizobata

IPC: C09J7/10 ,  C09J11/06 ,  C09J133/06 ,  C09J5/00 ,  C09J9/02 ,  C09J133/08 ,  C09J133/10 ,  C08K5/19 ,  C08K5/372 ,  C08K5/50 ,  C08K5/34 ,  C08K5/42 ,  C08K5/00

Abstract: There is provided an electrically peelable adhesive composition that is for forming an adhesive layer which has high adhesion and can be easily peeled off by applying a voltage for a short time even at a low voltage. In addition, there is provided an adhesive sheet including an adhesive layer formed of the composition that has high adhesion and can be easily peeled off by applying a voltage for a short time even at a low voltage, and a joined body of the adhesive sheet and an adherend. The electrically peelable adhesive composition of the invention includes a polymer and an ionic liquid, in which an anion of the ionic liquid is a bis(fluorosulfonyl)imide anion. A content of the ionic liquid is preferably 0.5 to 30 parts by weight with respect to 100 parts by weight of the polymer.