公开(公告)号：US20190284445A1

公开(公告)日：2019-09-19

申请号：US16355921

申请日：2019-03-18

Applicant: NITTO DENKO CORPORATION

Inventor： Kenji FURUTA ,  Akira HIRAO ,  Tatsuya SUZUKI

IPC: C09J7/38 ,  C09J7/20 ,  G11B21/10 ,  G11B5/012

Abstract: Provided is a PSA sheet that has a high level of moisture resistance while maintaining good holding power with reduced gas emission. The PSA sheet provided by this invention comprises a moisture-impermeable layer and a PSA layer provided to one face of the moisture-impermeable layer. The PSA layer comprises a polymer A having a weight average molecular weight of 5×104 or higher as a base polymer and a polymer B having a number average molecular weight of 1000 or higher and a weight average molecular weight lower than 5×104.

公开(公告)号：US20190106608A1

公开(公告)日：2019-04-11

申请号：US16152776

申请日：2018-10-05

Applicant: NITTO DENKO CORPORATION

Inventor： Kenta JOZUKA ,  Naoaki HIGUCHI ,  Kenji FURUTA ,  Naohiro KATO ,  Yasushi BUZOJIMA

IPC: C09J133/08 ,  C09J7/38 ,  C08F220/18

Abstract: The present invention provides an acrylic PSA composition. The acrylic PSA composition comprises an acrylic polymer as its base polymer and at least one species selected among tackifier resins and (meth)acrylic oligomers. The acrylic polymer has a weight average molecular weight higher than 70×104. The acrylic polymer has a dispersity (Mw/Mn) below 15.

公开(公告)号：US20190127611A1

公开(公告)日：2019-05-02

申请号：US16174624

申请日：2018-10-30

Applicant: NITTO DENKO CORPORATION

Inventor： Tatsuya SUZUKI ,  Hiroki IEDA ,  Akira HIRAO ,  Kenji FURUTA

IPC: C09J7/38 ,  C09J11/04 ,  C09J133/26 ,  C09J133/06 ,  C08K3/22

CPC classification number: C09J7/385 ,  C08K3/01 ,  C08K3/22 ,  C08K2003/2227 ,  C08K2201/001 ,  C08K2201/003 ,  C09J7/10 ,  C09J7/38 ,  C09J9/00 ,  C09J11/04 ,  C09J133/066 ,  C09J133/26 ,  C09J2205/102 ,  C09J2400/10 ,  C09J2433/00 ,  C09J2483/00

Abstract: Provided is a thermally conductive PSA sheet that comprises a PSA layer comprising a thermally conductive filler. The PSA sheet has a thermal resistance less than 6.0 cm2·K/W, and also has an adhesive strength N1 at 30 minutes of standing at 23° C. after applied to a stainless steel plate and an adhesive strength N2 at 23° C. after subjected to 5 minutes of heating at 80° C. after applied to a stainless steel plate, satisfying N2/N1≥2.

公开(公告)号：US20190071589A1

公开(公告)日：2019-03-07

申请号：US15766896

申请日：2017-11-20

Applicant: NITTO DENKO CORPORATION

Inventor： Hiroki IEDA ,  Tatsuya SUZUKI ,  Kenji FURUTA ,  Minami WATANABE ,  Takeshi NAKANO ,  Shogo SASAKI

IPC: C09J7/38 ,  B32B27/30 ,  B32B27/16 ,  C09J7/20 ,  C09J201/02 ,  C09J11/08 ,  C09J133/08

Abstract: The present invention provides a pressure-sensitive adhesive (PSA) sheet that achieves, in the form having a support substrate, both low initial adhesiveness and strong adhesiveness during use. The PSA sheet provided in this application includes a support substrate and a PSA layer laminated on at least one side of the support substrate. The PSA layer has a thickness of 3 μm or more but less than 100 μm. The support substrate has a thickness of 30 μm or more. The PSA sheet is configured so that a relationship between an elastic modulus Et′ [MPa] of the PSA sheet and a thickness Ts [mm] of the support substrate fulfils the following formula: 0.1 [N·mm]

公开(公告)号：US20240291108A1

公开(公告)日：2024-08-29

申请号：US18573979

申请日：2022-06-27

Applicant: NITTO DENKO CORPORATION

Inventor： Kyotaro YAMADA ,  Yuki TAKEDA ,  Motoki HAISHI ,  Kenji FURUTA

IPC: H01M50/451 ,  H01M50/403 ,  H01M50/489

CPC classification number: H01M50/451 ,  H01M50/403 ,  H01M50/489

Abstract: A multilayer body for a battery according to the present invention includes: a separator including a porous base material formed in a plate shape, and an inorganic material layer situated over either or both of opposite principal surfaces of the porous base material; and an organic support over which the separator is laminated.

公开(公告)号：US20180066163A1

公开(公告)日：2018-03-08

申请号：US15810758

申请日：2017-11-13

Applicant: NITTO DENKO CORPORATION

Inventor： Kenji FURUTA ,  Yoshio TERADA ,  Tadashi TAKAHASHI ,  Mitsuhiro KANADA

IPC: C09J7/02 ,  B32B27/36 ,  B32B37/12 ,  B32B7/12 ,  C09J133/06

CPC classification number: B32B7/12 ,  B32B15/082 ,  B32B15/085 ,  B32B15/088 ,  B32B15/09 ,  B32B15/12 ,  B32B15/18 ,  B32B15/20 ,  B32B27/08 ,  B32B27/10 ,  B32B27/281 ,  B32B27/286 ,  B32B27/288 ,  B32B27/304 ,  B32B27/306 ,  B32B27/308 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  B32B37/12 ,  B32B38/10 ,  B32B2250/03 ,  B32B2250/04 ,  B32B2255/06 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2307/50 ,  B32B2307/732 ,  B32B2310/0831 ,  B32B2405/00 ,  C09J7/22 ,  C09J7/28 ,  C09J7/29 ,  C09J7/38 ,  C09J133/066 ,  C09J2201/122 ,  C09J2201/606 ,  C09J2201/622 ,  C09J2400/163 ,  C09J2400/226 ,  C09J2421/00 ,  C09J2433/00 ,  C09J2467/00

Abstract: A magnetic disk drive includes a base having an opening, a cover configured to close the opening of the base, and a pressure-sensitive adhesive sheet configured to seal a gap between the base and the cover. The pressure-sensitive adhesive sheet includes a pressure-sensitive adhesive layer, and a substrate layer configured to support the pressure-sensitive adhesive layer. The pressure-sensitive adhesive layer has a storage modulus of 250 kPa or less at 23° C. The substrate layer has an elastic modulus of 1,680 N/cm to 3,000 N/cm. The pressure-sensitive adhesive sheet shows a deviation amount less than 1.0 mm, the amount being the deviation amount of the pressure-sensitive adhesive sheet per 250 gf/cm2 of the sheet in a holding ability test at 80° C. after one hour from a time when the holding ability test is started. Helium gas is accommodated in a cavity defined by the base and the cover.

公开(公告)号：US20170253773A1

公开(公告)日：2017-09-07

申请号：US15445061

申请日：2017-02-28

Applicant: NITTO DENKO CORPORATION

Inventor： Kenji FURUTA ,  Yoshio TERADA ,  Tadashi TAKAHASHI ,  Mitsuhiro KANADA

IPC: C09J7/02 ,  B32B7/12 ,  B32B27/36 ,  B32B37/12

CPC classification number: B32B7/12 ,  B32B15/082 ,  B32B15/085 ,  B32B15/088 ,  B32B15/09 ,  B32B15/12 ,  B32B15/18 ,  B32B15/20 ,  B32B27/08 ,  B32B27/10 ,  B32B27/281 ,  B32B27/286 ,  B32B27/288 ,  B32B27/304 ,  B32B27/306 ,  B32B27/308 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  B32B37/12 ,  B32B38/10 ,  B32B2250/03 ,  B32B2250/04 ,  B32B2255/06 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2307/50 ,  B32B2307/732 ,  B32B2310/0831 ,  B32B2405/00 ,  C09J7/22 ,  C09J7/28 ,  C09J7/29 ,  C09J7/38 ,  C09J133/066 ,  C09J2201/122 ,  C09J2201/606 ,  C09J2201/622 ,  C09J2400/163 ,  C09J2400/226 ,  C09J2421/00 ,  C09J2433/00 ,  C09J2467/00

Abstract: A pressure-sensitive adhesive sheet includes a pressure-sensitive adhesive layer and a substrate layer configured to support the pressure-sensitive adhesive agent layer. The pressure-sensitive adhesive layer has a storage modulus of 250 kPa or less at 23° C. The substrate layer has an elastic modulus of 1680 N/cm to 3000 N/cm both inclusive. The pressure-sensitive adhesive sheet shows a deviation amount less than 1.0 mm The amount is the deviation amount of the pressure-sensitive adhesive sheet per 250 gf/cm2 of the sheet in a holding ability test at 80° C. after one hour from a time when the test is started.

公开(公告)号：US20240291109A1

公开(公告)日：2024-08-29

申请号：US18573492

申请日：2022-06-27

Applicant: NITTO DENKO CORPORATION

Inventor： Kyotaro YAMADA ,  Yuki TAKEDA ,  Motoki HAISHI ,  Kenji FURUTA

IPC: H01M50/457 ,  H01M50/434

CPC classification number: H01M50/457 ,  H01M50/434

Abstract: A separator for a nonaqueous electrolyte secondary battery according to the present invention includes a porous base material, a metal layer situated over either or both of opposite surfaces of the porous base material, and a metal oxide layer situated either over one of opposite surfaces of the metal layer or over both of the opposite surfaces of the metal layer, the one being a surface opposite to a surface of the metal layer on a side of the porous base material.

公开(公告)号：US20210079270A1

公开(公告)日：2021-03-18

申请号：US16956257

申请日：2018-12-27

Applicant: NITTO DENKO CORPORATION

Inventor： Kenji FURUTA ,  Tatsuya SUZUKI ,  Minami WATANABE

IPC: C09J7/38 ,  H05K5/06 ,  G01N19/10 ,  G11B33/14

Abstract: Provided is a PSA sheet having excellent moisture resistance with reduced gas emission.
The sheet body provided by this invention is a laminate sheet body having a PSA layer on at least one face. The sheet body has a moisture permeability of less than 90 μg/cm2 per 24 hour measurement period in in-plane direction of bonding interface of PSA layer, with the sheet body having an internal volume (bulk) forming a permeation channel that has a prescribed length of 2.5 mm, the moisture permeability determined based on a modified MOCON method, at a permeation cell temperature of 40° C., with humidistat gas at a temperature of 40° C. and 90% relative humidity supplied to a wet chamber. It also has an amount of thermally released gas of 10 μg/cm2 or less, determined at 130° C., over 30 minutes, by gas chromatography/mass spectrometry.

公开(公告)号：US20160376473A1

公开(公告)日：2016-12-29

申请号：US15186032

申请日：2016-06-17

Applicant: NITTO DENKO CORPORATION

Inventor： Kenji FURUTA ,  Yoshio TERADA ,  Kota NAKAO ,  Akira HIRAO ,  Ryo MORIOKA

IPC: C09J7/02 ,  G11B33/02

CPC classification number: C09J7/0296 ,  B32B15/08 ,  C09J7/22 ,  C09J7/29 ,  C09J7/38 ,  C09J133/06 ,  C09J133/08 ,  C09J2201/606 ,  C09J2201/622 ,  C09J2203/326 ,  C09J2400/163 ,  C09J2423/106 ,  C09J2433/00 ,  C09J2467/006 ,  G11B25/043 ,  G11B33/1446

Abstract: A pressure-sensitive adhesive sheet includes a pressure-sensitive adhesive layer and a base including a metal layer and a resin layer, and a product of an initial elastic modulus of the base and a total thickness of the base is 3000 N/mm or less, and a separation distance is 2 mm or less, the separation distance is measured with a peel test with a constant load as follows: a test piece of the pressure-sensitive adhesive sheet having a 10 mm width and a 100 mm length is attached to a surface of a stainless steel test plate and then, the test plate is left stand at a temperature of 23° C. for twenty four hours and then, a load of 100 gf is applied to one end of a length dimension of the test piece vertical to the surface of the test plate and a separation distance of the test piece is measured after one hour.

Abstract translation: 压敏粘合片包括压敏粘合剂层和包括金属层和树脂层的基材，并且基材的初始弹性模量与基材的总厚度的乘积为3000N / mm以下 ，分离距离为2mm以下时，通过如下的恒定载荷的剥离试验测定分离距离：将具有10mm宽度和100mm长度的压敏粘合片的试验片连接到 不锈钢试验板的表面，然后将测试板在23℃的温度下静置二十四小时，然后将100gf的载荷施加到试验片的长度尺寸的一端 垂直于测试板的表面，并在1小时后测量试片的间隔距离。