公开(公告)号：US11696975B2

公开(公告)日：2023-07-11

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 ,  B32B27/18 ,  B32B27/30 ,  C08F222/38 ,  C08J3/075 ,  C09J7/30 ,  C09J11/04 ,  C09J11/06 ,  A61B5/259 ,  A61B5/296 ,  A61B5/398 ,  A61B18/16 ,  A61B18/00 ,  A61N1/04 ,  A61B5/291

CPC classification number: A61L31/145 ,  A61L31/041 ,  B32B27/18 ,  B32B27/306 ,  C08F222/385 ,  C08J3/075 ,  C09J7/30 ,  C09J11/04 ,  C09J11/06 ,  A61B5/259 ,  A61B5/291 ,  A61B5/296 ,  A61B5/398 ,  A61B18/16 ,  A61B2018/00601 ,  A61B2562/0215 ,  A61B2562/0217 ,  A61N1/0428 ,  A61N1/0456 ,  C08J2335/00 ,  C08J2435/00

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：US11484238B2

公开(公告)日：2022-11-01

申请号：US16338270

申请日：2017-09-22

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Kazuki Kato ,  Ryo Iizuka ,  Yoshiki Nakayama

IPC: A61B5/00 ,  A61B5/291 ,  C09J7/10 ,  B32B27/08 ,  B32B27/30 ,  B32B27/36 ,  C09J133/26 ,  C09J11/08 ,  C09J7/30 ,  B32B7/022 ,  A61B5/259 ,  A61L15/24

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：US11197991B2

公开(公告)日：2021-12-14

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

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)