公开(公告)号：US20240178397A1

公开(公告)日：2024-05-30

申请号：US18284365

申请日：2022-03-25

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Takayuki MAEDA ,  Yutaro ASABA

IPC: H01M4/62 ,  H01M4/13

CPC classification number: H01M4/622 ,  H01M4/13

Abstract: The present invention provides an all-solid-state battery composition that is excellent in dispersibility of an active material or an electrolyte and adhesion, can provide a high-strength coating film or molded body, and enables the production of a high-capacity all-solid-state battery with low electrode resistance, and also provides an all-solid-state battery including the all-solid-state battery composition. The present invention relates to an all-solid-state battery composition to be used for an all-solid-state battery, the composition containing: an active material and/or a solid electrolyte; a polyvinyl acetal resin; and an organic solvent, the polyvinyl acetal resin having an average degree of polymerization of 5,000 or greater and 10,000 or less.

公开(公告)号：US20230331879A1

公开(公告)日：2023-10-19

申请号：US18026648

申请日：2021-09-24

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Takayuki MAEDA

IPC: C08F8/28 ,  C08K3/08 ,  C08F16/38 ,  C08K5/053 ,  C09D129/14

CPC classification number: C08F16/38 ,  C08F8/28 ,  C08K3/08 ,  C08K5/053 ,  C09D129/14 ,  C08K2003/0856

Abstract: The present invention provides a polyvinyl acetal resin that has an excellent dispersing property and enables the production of a formed article having high mechanical strength. Provided is a polyvinyl acetal resin having a water absorption per unit area of 2 mg/cm2 or greater and 50 mg/cm2 or less when formed into a film having a thickness of 10 µm.

公开(公告)号：US20220186017A1

公开(公告)日：2022-06-16

申请号：US17599262

申请日：2020-03-27

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Takayuki MAEDA

IPC: C08L31/04 ,  C08L29/04 ,  H01G4/30 ,  C04B35/634

Abstract: The present invention provides a resin composition for a ceramic green sheet capable of providing a ceramic green sheet that has high mechanical strength even with small thickness and is less likely to have appearance defects after cutting or dimensional changes after drying, and a ceramic green sheet and a multilayer ceramic capacitor each produced using the resin composition for a ceramic green sheet. Provided is a resin composition for a ceramic green sheet, the resin composition containing a polyvinyl acetal resin, the resin composition having a tan δ peak top of 1.25 or more and a loss modulus E″ of 2.30×108 Pa or more.

公开(公告)号：US20180194935A1

公开(公告)日：2018-07-12

申请号：US15743390

申请日：2016-09-30

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Takayuki MAEDA ,  Kenji YAMAUCHI ,  Shiori TATENO

IPC: C08L29/14 ,  C08F8/28 ,  C08L63/00 ,  C08L29/04

Abstract: The present invention aims to provide a modified polyvinyl acetal resin composition that is excellent in storage stability, has high strength and excellent adhesiveness, and is capable of reducing occurrence of warping or peeling when used for bonding different materials. The present invention relates to a modified polyvinyl acetal resin composition containing: a modified polyvinyl acetal resin having a constitutional unit with an imine structure, and an epoxy resin.

公开(公告)号：US20210002528A1

公开(公告)日：2021-01-07

申请号：US17040761

申请日：2019-03-11

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Tasuku YAMADA ,  Shiori TATENO ,  Yousuke CHIBA ,  Takayuki MAEDA ,  Yukio OCHITANI ,  Hideaki TANAKA

IPC: C09J163/00 ,  C09J11/04

Abstract: The present invention provides an epoxy adhesive composition capable of reducing re-aggregation of an adhesive layer modifier, maintaining favorable viscosity for a long period of time, exhibiting high adhesiveness, and reducing process failures during application of the adhesive. Provided is an epoxy adhesive composition containing: a modified polyvinyl acetal resin having a constitutional unit with an acid-modified group; an adhesive layer modifier; and an epoxy resin, the epoxy adhesive composition having a ratio of an acid-modified group equivalent of the modified polyvinyl acetal resin to an epoxy equivalent of the epoxy resin (acid-modified group equivalent/epoxy equivalent) of 5.0 to 150.0, the epoxy adhesive composition having a number ratio of the acid-modified group to an epoxy group (acid-modified group number/epoxy group number) of 0.0005 to 0.5.

公开(公告)号：US20190276718A1

公开(公告)日：2019-09-12

申请号：US16334814

申请日：2017-09-26

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Shiori TATENO ,  Takayuki MAEDA ,  Kenji YAMAUCHI

IPC: C09J163/00 ,  C08L31/04

Abstract: The present invention provides an epoxy adhesive composition that is excellent in compatibility and storage stability, has high strength and excellent adhesiveness, is capable of reducing occurrence of warping or peeling when used for bonding different materials, and is also excellent in impact resistance after being cured. Provided is an epoxy adhesive composition including: a modified polyvinyl acetal resin having a constitutional unit with an acid-modified group; and an epoxy resin, the epoxy adhesive composition containing an organic solvent in an amount of 10.0% by weight or less.

公开(公告)号：US20170088640A1

公开(公告)日：2017-03-30

申请号：US15124103

申请日：2014-03-24

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Kenji YAMAUCHI ,  Jiro MIYAI ,  Shogo NARUWAKI ,  Takayuki MAEDA

IPC: C08F8/28 ,  C09D5/32 ,  C09D5/26 ,  G03C1/498 ,  C09D129/14

CPC classification number: C08F8/28 ,  C08F2800/10 ,  C08L2205/025 ,  C09D5/26 ,  C09D5/32 ,  C09D129/14 ,  G03C1/49863 ,  C08K13/02 ,  C08F16/06

Abstract: An object of the present invention is to provide: a polyvinyl acetal resin for a heat-developable photosensitive material capable of preventing skinning in the coating process of the photosensitive layer of the heat-developable photosensitive material, preventing deterioration of image characteristics and coloration of the coating solution, and suppressing the occurrence of odor at the time of producing the heat-developable photosensitive material and heat development. The present invention provides a polyvinyl acetal resin for a heat-developable photosensitive material used for a photosensitive layer of the heat-developable photosensitive material, which has a residual acetyl group content of 25 mol % or less, residual hydroxyl group content of 17-35 mol %, polymerization degree of 200 to 3,000, which is obtained by an acetalization of a polyvinyl alcohol mixture containing polyvinyl alcohol resins having different polymerization degrees, the content of the polyvinyl alcohol having a polymerization degree of 600 or less being 50 wt % or higher in the polyvinyl alcohol mixture.