公开(公告)号：US20200016300A1

公开(公告)日：2020-01-16

申请号：US16338308

申请日：2017-09-22

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Ryo IIZUKA ,  Kazuki KATO

IPC: A61L31/14 ,  A61L31/04 ,  C08J3/075 ,  C09J7/30 ,  C09J11/06 ,  C09J11/04 ,  C08F222/38 ,  B32B27/30 ,  B32B27/18

Abstract: A hydrogel 1 having a laminate structure of layer A 10 and layer B 20, wherein layer A 10 contains a monomer-derived component, water, a humectant, a water-insoluble polymer having tackiness and an amphiphilic polymer, the water-insoluble polymer is contained in a proportion of 3 to 20 wt % based on a total amount of layer A, and the amphiphilic polymer is a polyvinyl alcohol having a saponification degree of 50 to 75% and is contained in a proportion of 0.05 to 5 wt % based on the total amount of layer A; layer B 20 contains a monomer-derived component, water and a humectant and is substantially free of a water-insoluble polymer having tackiness and a polyvinyl alcohol; and an amount of the water based on a total amount of layer B is the amount of water based on the total amount of layer A±10 wt %.

公开(公告)号：US20180230337A1

公开(公告)日：2018-08-16

申请号：US15516469

申请日：2015-10-16

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Koichiro OKAMOTO ,  Yousuke MAEYAMA ,  Shuichi SASAHARA ,  Ryo IIZUKA

IPC: C09J7/10 ,  E04G23/02

CPC classification number: C09J7/10 ,  B32B7/12 ,  C09J5/00 ,  C09J7/00 ,  C09J11/06 ,  C09J133/00 ,  C09J133/066 ,  C09J133/068 ,  C09J135/02 ,  C09J163/00 ,  C09J2433/00 ,  C09J2463/00 ,  E04G23/02

Abstract: A tacky gel sheet having adhesive uses, comprising an organogel having tackiness before curing and having adhesiveness after curing to an adherend, in which the organogel (i) comprises a polymer matrix including a (meth)acrylate-based resin, a plasticizing component having curability, and a curing agent having reactivity with the plasticizing component, and (ii) (1) has a viscoelastic property expressed by a storage modulus of 1.0×103 to 5.0×104 Pa and a loss factor of 0.01 to 2 (at a frequency of 0.01 Hz and at 23° C.), and a storage modulus of 1.0×104 to 1.0×107 Pa and a loss factor of 0.01 to 2 (at a frequency of 100 Hz and at 23° C.) and (2) has a tacking force of 0.01 to 0.15 N/mm2 (at 23° C.) before curing, a tensile shear adhesion strength of 3 N/mm2 or more (at 23° C.) and a tensile adhesion strength of 1 N/mm2 or more (at 23° C.) after curing.

公开(公告)号：US20190313931A1

公开(公告)日：2019-10-17

申请号：US16338270

申请日：2017-09-22

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Kazuki KATO ,  Ryo IIZUKA ,  Yoshiki NAKAYAMA

IPC: A61B5/0478 ,  A61B5/00

Abstract: The present invention is intended to provide a gel sheet having a formulation providing an adhesive force on the skin side suitable for the skin (i.e., a gel having a low adhesive force and being able to withstand a tip pressure of a terminal and the like), and concurrently having a sufficient adhesive force against an electrode element on the side opposite to the skin side. The present invention is a gel sheet having a laminated structure of a layer A and a layer B, characterized in that the storage elastic modulus of the layer A at 23° C. and 10 Hz is 12,000 to 40,000 Pa, and the storage elastic modulus of the layer B at 23° C. and 10 Hz is 2,000 to 10,000 Pa.

公开(公告)号：US20190217079A1

公开(公告)日：2019-07-18

申请号：US16313078

申请日：2017-06-27

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Kazuki KATO ,  Ryo IIZUKA ,  Takaaki HATORI ,  Takashi MOTOMURA ,  Kazuhiro YOSHIKAWA ,  Yoshiki NAKAYAMA

IPC: A61N1/04

CPC classification number: A61N1/0496 ,  A61N1/04

Abstract: An object of the present invention is to provide a gel sheet comprising an intermediate base, having no variation in adhesiveness.A gel sheet 1 comprising a gel material 10 and an intermediate base 20 embedded in the gel material 10, wherein when T represents the thickness of the gel sheet 1, and S represents the amplitude of the intermediate base 20, a relation represented by the following expression (1) is satisfied: S/T≤0.4 . . . (1)