公开(公告)号：US20240409780A1

公开(公告)日：2024-12-12

申请号：US18691482

申请日：2022-09-28

Applicant: NITTO DENKO CORPORATION

Inventor： Sho UCHIDA ,  Kohei TAKEDA ,  Shinsuke IKISHIMA

IPC: C09J7/35 ,  C09J7/10 ,  C09J11/08

Abstract: Provided are a pressure-sensitive adhesive composition that has a sufficient initial pressure-sensitive adhesive strength and can achieve both a resealing property and an easy unsealing property, and a pressure-sensitive adhesive tape using the pressure-sensitive adhesive composition. A hot-melt pressure-sensitive adhesive composition according to an embodiment of the present invention includes a styrene-based elastomer, an olefin-based elastomer, and a tackifier. The hot-melt pressure-sensitive adhesive composition includes 2 wt % to 80 wt % of the styrene-based elastomer, 2 wt % to 50 wt % of the olefin-based elastomer, and 2 wt % to 40 wt % of the tackifier.

公开(公告)号：US20190053959A1

公开(公告)日：2019-02-21

申请号：US16078900

申请日：2017-03-03

Applicant: NITTO DENKO CORPORATION

Inventor： Kohei TAKEDA ,  Shinsuke IKISHIMA ,  Ryuji KUWABARA

IPC: A61F13/514 ,  A61F13/49 ,  B32B27/32 ,  B32B25/08

Abstract: Provided is a stretchable laminate that achieves both a weight reduction and an extension strength, and that can be stably produced. Also provided is an article including such stretchable laminate. The stretchable laminate of the present invention includes: an elastomer layer; and an olefin-based resin layer arranged on at least one side of the elastomer layer, wherein when a longitudinal direction of the stretchable laminate is defined as an MD direction and a direction perpendicular to the longitudinal direction is defined as a CD direction, a ratio [10% extension strength in MD direction (N/30 mm)]/[basis weight (gsm)] of the stretchable laminate is 0.14 (N/30 mm·gsm) or more.

公开(公告)号：US20180281296A1

公开(公告)日：2018-10-04

申请号：US15763254

申请日：2016-09-15

Applicant: NITTO DENKO CORPORATION

Inventor： Shou UCHIDA ,  Shinsuke IKISHIMA ,  Kohei TAKEDA ,  Muneshige NAKAGAWA ,  Ryuji KUWABARA ,  Ikuya KUZUHARA

IPC: B29C65/08 ,  B29C65/00 ,  B32B5/02 ,  B32B5/26 ,  B32B37/06

Abstract: Provided is a method of producing a layered article by which a sufficient production speed can be achieved, and preferably, a variation in fusion strength can be suppressed and hence a variation in product quality can be reduced. The method of producing a layered article of the present invention includes fusing at least part of a single-layer body or a laminate including at least one layer including a non-woven fabric of fiber having a fiber diameter of 100 μm or less through ultrasonic welding.

公开(公告)号：US20180133951A1

公开(公告)日：2018-05-17

申请号：US15564090

申请日：2016-04-12

Applicant: NITTO DENKO CORPORATION

Inventor： Yasuhiro TAKEDA ,  Yoshitake SHIGEMATSU ,  Kohei TAKEDA ,  Shou UCHIDA ,  Muneshige NAKAGAWA ,  Shinsuke IKISHIMA

IPC: B29C55/10 ,  C08J9/00 ,  C08K3/26 ,  C08L23/04

Abstract: The stretchable porous film of the present invention includes voids in a surface thereof, in which: the stretchable porous film has an air permeability measured with an Oken-type air permeability meter of less than 99,999 sec/100 cc; the stretchable porous film has such an extending direction that an air permeability measured with the Oken-type air permeability meter in a state in which the stretchable porous film is extended by 100% becomes less than 60,000 sec/100 cc; and the stretchable porous film has such a pulling direction that when, in a hysteresis test, the stretchable porous film is pulled from a width of 20 mm and an inter-chuck distance of 30 mm to an inter-chuck distance of 60 mm at a pulling speed of 50 mm/min and held for 1 minute, and then the pulling of the inter-chuck distance is released, a residual strain becomes 10 mm or less.

公开(公告)号：US20170320304A1

公开(公告)日：2017-11-09

申请号：US15528248

申请日：2015-12-10

Applicant: NITTO DENKO CORPORATION

Inventor： Kohei TAKEDA ,  Shinsuke IKISHIMA ,  Shou UCHIDA

IPC: B32B27/32 ,  B32B27/06 ,  A61F13/49

CPC classification number: B32B27/12 ,  A61F13/49012 ,  A61F13/49015 ,  A61F13/51478 ,  A61F2013/49092 ,  B32B5/022 ,  B32B7/02 ,  B32B7/12 ,  B32B25/08 ,  B32B27/06 ,  B32B27/08 ,  B32B27/302 ,  B32B27/32 ,  B32B27/327 ,  B32B2274/00 ,  B32B2307/51 ,  B32B2307/54 ,  B32B2309/105 ,  B32B2323/043 ,  B32B2555/02 ,  D10B2501/042 ,  D10B2509/026

Abstract: The stretchable laminate of the present invention includes: an elastomer layer; and an olefin-based resin layer arranged on at least one side of the elastomer layer, in which: in a S-S data graph of an operation in which the stretchable laminate is extended to an extension ratio of 400% at a tension speed of 1,000 mm/min, and is then returned to an extension ratio of 0% at a tension speed of 1,000 mm/min, the stretchable laminate has an upper yield point during extension thereof from an extension ratio of 0% to an extension ratio of 100%, and has a lower yield point during extension thereof from the upper yield point to an extension ratio of 400%; and a difference between a yield stress at the upper yield point and a yield stress at the lower yield point is 0.05 N/30 mm width or more.

公开(公告)号：US20170157888A1

公开(公告)日：2017-06-08

申请号：US15036208

申请日：2015-08-18

Applicant: NITTO DENKO CORPORATION

Inventor： Shinsuke IKISHIMA ,  Shou UCHIDA ,  Hiroyuki KONDOU

IPC: B32B5/02 ,  A61F13/514 ,  C09J123/20 ,  A61L15/58 ,  B32B27/12 ,  B32B7/12

Abstract: Provided is a stretchable laminate including an elastomer layer and a non-woven fabric layer arranged on at least one side of the elastomer layer, in which interlayer delamination does not occur between the elastomer layer and the non-woven fabric layer even when a load is applied onto a surface, on which the elastomer layer and the non-woven fabric layer are bonded onto each other, in a substantially perpendicular direction. Also provided is an article including such stretchable laminate. The stretchable laminate of the present invention includes: an elastomer layer; and a non-woven fabric layer arranged on at least one side of the elastomer layer, the stretchable laminate further including a hot-melt pressure-sensitive adhesive between the elastomer layer and the non-woven fabric layer, the hot-melt pressure-sensitive adhesive containing an olefin component.

公开(公告)号：US20160159031A1

公开(公告)日：2016-06-09

申请号：US14905006

申请日：2014-06-26

Applicant: NITTO DENKO CORPORATION

Inventor： Shinsuke IKISHIMA ,  Tatsuya SUZUKI ,  Makoto AZUKIZAWA

IPC: B32B5/02 ,  B32B27/32

CPC classification number: B32B5/022 ,  B32B27/12 ,  B32B27/20 ,  B32B27/302 ,  B32B27/304 ,  B32B27/32 ,  B32B27/327 ,  B32B27/34 ,  B32B27/36 ,  B32B27/40 ,  B32B2250/02 ,  B32B2250/03 ,  B32B2250/40 ,  B32B2262/0246 ,  B32B2262/0253 ,  B32B2262/0261 ,  B32B2262/0292 ,  B32B2262/04 ,  B32B2262/12 ,  B32B2262/14 ,  B32B2270/00 ,  B32B2307/51 ,  B32B2555/02

Abstract: Provided is a stretchable laminate having excellent fittability. Also provided is an article including such stretchable laminate. The stretchable laminate of the present invention is a stretchable laminate, including: an elastomer layer; and a non-woven fabric layer arranged on at least one side of the elastomer layer, the stretchable laminate having a permanent set of 10% or less after a hysteresis test is performed four times. The article of the present invention includes the stretchable laminate of the present invention.

Abstract translation: 提供了具有优异的适合性的可拉伸层压体。 还提供了包括这种可拉伸层压材料的制品。 本发明的伸缩性层叠体是可拉伸层压体，其包括：弹性体层; 以及布置在弹性体层的至少一侧的无纺织物层，在滞后试验后具有10％以下的永久变形的伸缩性层叠体进行4次。 本发明的制品包括本发明的可拉伸层压材料。

公开(公告)号：US20220194052A1

公开(公告)日：2022-06-23

申请号：US17603153

申请日：2020-04-16

Applicant: NITTO DENKO CORPORATION

Inventor： Muneshige NAKAGAWA ,  Sho UCHIDA ,  Shinsuke IKISHIMA

IPC: B32B7/022 ,  B32B27/32 ,  B32B27/30 ,  B32B27/08 ,  B32B27/18

Abstract: Provided is a multilayer co-extruded film comprising at least two different elasticity layers with at least one first elasticity layer and at least one second elasticity layer having higher elasticity than the at least one first elasticity layer, wherein the first elasticity layer comprises a combination of an olefin-based elastomer and a crystalline olefin polymer, and wherein the residual strain after 100% elongation during 10 min at 23° C. of the multilayer co-extruded film is less than 15%.

公开(公告)号：US20190291391A1

公开(公告)日：2019-09-26

申请号：US16348565

申请日：2017-12-01

Applicant: NITTO DENKO CORPORATION

Inventor： Kohei TAKEDA ,  Muneshige NAKAGAWA ,  Shinsuke IKISHIMA

IPC: B32B25/14 ,  B32B25/10 ,  B32B5/02

Abstract: Provided is a stretchable film that can prevent a delivery failure when delivered from a winding body. Also provided is a stretchable laminate including such stretchable film. Still also provided is an article including such stretchable laminate. The stretchable film of the present invention includes a laminated film of a plurality of elastomer layers, wherein the stretchable film includes an elastomer layer (A1), an elastomer layer (B), and an elastomer layer (A2) in the stated order, wherein the elastomer layer (A1) and the elastomer layer (A2) are provided as outer layers, and wherein each of the elastomer layer (A1) and the elastomer layer (A2) contains a fatty acid amide.

公开(公告)号：US20190076308A1

公开(公告)日：2019-03-14

申请号：US15767243

申请日：2016-10-14

Applicant: NITTO DENKO CORPORATION

Inventor： Shinsuke IKISHIMA ,  Muneshige NAKAGAWA

IPC: A61F13/58

Abstract: Provided is an ultrasmall-sized fixing tape suitable for a disposal tape for an absorbent article, such as a disposable diaper, a sanitary napkin, or an incontinence pad. The ultrasmall fixing tape of the present invention includes: an extending portion; and a non-extending portion that is substantially free from extending, in which: the non-extending portion includes securing means in at least part thereof; the ultrasmall fixing tape has a base material layer B; the base material layer B has a thickness of 50 μm or more; and the base material layer B has an upper yield strength in a longitudinal direction thereof at a temperature of 23° C. and a humidity of 50% of from 5 N/25 mm to 15 N/25 mm.