公开(公告)号：US20190241769A1

公开(公告)日：2019-08-08

申请号：US16343351

申请日：2017-10-17

Applicant: NITTO DENKO CORPORATION

Inventor： Naofumi KOSAKA ,  Keisuke SHIMOKITA ,  Hironao OOTAKE ,  Asami DOI ,  Mizuho CHIBA ,  Akiko TAKAHASHI

IPC: C09J7/40 ,  B32B5/18 ,  B32B27/28 ,  B32B27/34 ,  B32B27/36 ,  B32B27/32 ,  C09J7/20 ,  C09J7/38 ,  C09J201/04

CPC classification number: C09J7/403 ,  B32B5/18 ,  B32B27/00 ,  B32B27/281 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  C09J7/20 ,  C09J7/38 ,  C09J201/00 ,  C09J201/04 ,  C09J2201/606

Abstract: A separator containing a substrate and a release layer formed on at least one side of the substrate wherein the separator shows a strain of not more than 7% when a load of 5N/20 mm is applied for one minute in the pulling direction, and when the substrate is cut in half in the thickness direction to divide the separator into two, an apparent elastic modulus in the pulling direction of one of the divided separators is larger than an apparent elastic modulus in the pulling direction of the other divided separator.

公开(公告)号：US20190016923A1

公开(公告)日：2019-01-17

申请号：US15551062

申请日：2016-03-07

Applicant: NITTO DENKO CORPORATION

Inventor： Kensuke TANI ,  Mizuho NAGATA ,  Kaori MIZOBATA ,  Masatsugu SOGA ,  Ryota MASUDA ,  Masayuki SATAKE ,  Kenichi OKADA ,  Naofumi KOSAKA ,  Keisuke SHIMOKITA

IPC: C09J7/02

CPC classification number: C09J7/383 ,  C09D7/45 ,  C09J7/20 ,  C09J7/385 ,  C09J7/387

Abstract: Provided is an adhesive member to be adhesively fixed through pressure which has both position adjustability and adhesiveness and is capable of producing a sufficient adhesive strength in addition to the position adjustability. The adhesive member comprises a support, a pressure-sensitive adhesive layer provided on one surface of the support, and a plurality of protrusion elements arranged, in spaced-apart relation to each other, on a principal surface of the pressure-sensitive adhesive layer on a side opposite to the support. Each of the protrusion elements is composed of an aggregation of a plurality of cohesive particles, wherein the adhesive member has a frictional force of 0.4 N/cm2 or less, with respect to a stainless steel plate serving as an adherend, as measured when the protrusion elements are in contact with a surface of the adherend, and a shear adhesive strength of 45 N/cm2 or more.

公开(公告)号：US20190194507A1

公开(公告)日：2019-06-27

申请号：US16329952

申请日：2017-08-31

Applicant: NITTO DENKO CORPORATION

Inventor： Mizuho CHIBA ,  Keisuke SHIMOKITA ,  Asami DOI ,  Akiko TAKAHASHI ,  Hironao OOTAKE

IPC: C09J133/12 ,  C09J7/30

CPC classification number: C09J133/12 ,  C08F20/18 ,  C08F2500/24 ,  C09J7/00 ,  C09J7/30 ,  C09J7/40 ,  C09J133/00

Abstract: An aqueous dispersion-type acrylic adhesive composition of core-shell structured acrylic copolymer particles dispersed in an aqueous medium, the particles containing core layer (A) containing acrylic polymer (A) and shell layer (B) containing acrylic polymer (B), whereinthe acrylic polymer (B) has a glass transition temperature of not less than 30° C. and the acrylic polymer (A) has a glass transition temperature lower than that of the acrylic polymer (B).

公开(公告)号：US20200270483A1

公开(公告)日：2020-08-27

申请号：US16304184

申请日：2017-04-14

Applicant: NITTO DENKO CORPORATION

Inventor： Mizuho CHIBA ,  Keisuke SHIMOKITA ,  Asami DOI ,  Akiko TAKAHASHI ,  Hironao OOTAKE ,  Naofumi KOSAKA ,  Kensuke TANI

IPC: C09J7/29 ,  C09J7/38 ,  C09J11/08

Abstract: A pressure-bonding adhesive member having a superior positional-adjustment function relative to an adherend having a surface mainly constituted of low-polarity plastic typified by polypropylene, and capable of adhering to the adherend with a sufficiently high adhesive force after positional adjustment. The pressure-bonding adhesive member containing an adhesive layer and plural convex parts formed on one surface of the adhesive layer, wherein, when the convex parts are in contact with a polypropylene plate and the adhesive layer is not in contact with the polypropylene plate, the adhesive member shows a frictional force of not more than 0.6 N/cm2 on the polypropylene plate and a shear adhesive force of not less than 50 N/cm2 to the polypropylene plate.

公开(公告)号：US20190030829A1

公开(公告)日：2019-01-31

申请号：US16070239

申请日：2017-01-13

Applicant: NITTO DENKO CORPORATION

Inventor： Kenichi OKADA ,  Keisuke SHIMOKITA ,  Akiko TANAKA ,  Eriko FUNATSU ,  Asuka GOMI ,  Akira SHIMAZU

IPC: B29C65/48 ,  B32B27/08 ,  C09J7/00 ,  B32B5/12 ,  B29C65/00

Abstract: A surface-modified thermoplastic resin in which sufficient bonding strength is applied to a thermoplastic resin and a method thereof are provided. A bonded structure capable of exhibiting sufficient bonding strength and a method thereof are provided. A thermal transfer surface-modifying sheet that can be preferably used in the method for manufacturing a surface-modified thermoplastic resin is provided. A thermoplastic resin with a thermal transfer surface-modifying sheet including the thermal transfer surface-modifying sheet is provided. The method for manufacturing a surface-modified thermoplastic resin, in which an easy adherence layer is laminated on a thermoplastic resin having a melting point of T° C., the method includes: providing the easy adherence layer on at least a part of a surface of the thermoplastic resin; and performing heat welding at a temperature equal to or higher than (T−50)° C.

公开(公告)号：US20230048315A1

公开(公告)日：2023-02-16

申请号：US17865857

申请日：2022-07-15

Applicant: NITTO DENKO CORPORATION

Inventor： Amane SAWAMURA ,  Shuhei YAMAMOTO ,  Keisuke SHIMOKITA ,  Hayata MATSUMOTO ,  Yasuhito INAI

IPC: C09J7/38 ,  C09J7/10 ,  C09J133/08 ,  C09J167/00

Abstract: A water-dispersed pressure-sensitive adhesive composition of the present invention includes a water-dispersible polymer, a carboxylic acid copolymer thickener, a polyacrylic acid thickener, and water. A ratio of the carboxylic acid copolymer thickener in the solid content of the water-dispersed pressure-sensitive adhesive composition is 0.1% by mass or more and 1.5% by mass or less. A ratio of the polyacrylic acid thickener in the solid content of the adhesive composition is 1% by mass or more and 3.7% by mass or less. A pressure-sensitive adhesive sheet of the present invention has a pressure-sensitive adhesive layer formed from the water-dispersed pressure-sensitive adhesive composition.

公开(公告)号：US20230047269A1

公开(公告)日：2023-02-16

申请号：US17865844

申请日：2022-07-15

Applicant: NITTO DENKO CORPORATION

Inventor： Hayata MATSUMOTO ,  Keisuke SHIMOKITA ,  Shuhei YAMAMOTO ,  Amane SAWAMURA

IPC: C09J133/08

Abstract: A water-dispersed pressure-sensitive adhesive composition includes a water-dispersible polymer and water. The viscosity X (Pa·s) and the dynamic surface tension Y (mN/m) at a life time of 100 milliseconds satisfy the following formulas (1) and (2): 0.15≤X≤1.25  (1) Y≤19.3X+35  (2)

公开(公告)号：US20190016925A1

公开(公告)日：2019-01-17

申请号：US16069259

申请日：2017-01-10

Applicant: NITTO DENKO CORPORATION

Inventor： Akiko TANAKA ,  Keisuke SHIMOKITA ,  Kenichi OKADA ,  Masayuki MINAKATA

IPC: C09J7/30 ,  C09J5/00 ,  C09J7/40 ,  C09J11/06 ,  C09J163/00

Abstract: A stickable-curable adhesive sheet bonds a deformation/conversion device to an adherend. The stickable-curable adhesive sheet contains a stickable-curable adhesive component and a curing component curing the stickable-curable adhesive component. The stickable-curable adhesive component has pressure-sensitive adhesiveness before curing and the initial tensile elastic modulus at 25° C. of the stickable-curable adhesive sheet after curing is 5×108 Pa or more.