公开(公告)号：US20210172072A1

公开(公告)日：2021-06-10

申请号：US16632092

申请日：2018-04-16

Applicant: SHOWA DENKO K.K.

Inventor： Kazuo OTANI ,  Tomoya HIRANO ,  Shinji NUMAO

IPC: C23F1/36 ,  C23C28/00 ,  C23C22/07 ,  C23C22/83

Abstract: Provided is a method for treating a surface of an aluminum article capable of imparting an effective anchoring effect to a surface of the aluminum article and enabling a strong chemical bond between the surface of the aluminum article and an organic material layer such as a coated resin layer or a laminated FRP applied to the surface without using a chemical solution that is not easy to treat. In the method for treating a surface of an aluminum article according to the present invention, the surface of the aluminum article is subjected to at least one of an etching treatment, a boehmite treatment, and a zirconium treatment, and then further subjected to at least one of a silane coupling agent treatment, an isocyanate compound treatment, and a thiol compound treatment.

公开(公告)号：US20220219403A1

公开(公告)日：2022-07-14

申请号：US17615320

申请日：2020-08-03

Applicant: SHOWA DENKO K.K.

Inventor： Kazuo OTANI ,  Shinji NUMAO ,  Nobuyuki TAKAHASHI ,  Ryota NIIBAYASHI

IPC: B29C65/08 ,  B29C65/70

Abstract: A primer-attached thermoplastic resin material having a thermoplastic resin material and one or plural primer layers laminated on the thermoplastic resin material, wherein at least one layer of the primer layers is an in-situ polymerizable composition layer of an in-situ polymerizable composition polymerized on the thermoplastic resin material.

公开(公告)号：US20220154009A1

公开(公告)日：2022-05-19

申请号：US17595957

申请日：2020-08-03

Applicant: SHOWA DENKO K.K.

Inventor： Kazuo OTANI ,  Shinji NUMAO ,  Nobuyuki TAKAHASHI ,  Ryota NIIBAYASHI

IPC: C09D5/00 ,  C09D123/26 ,  C09D171/12

Abstract: A primer-attached thermoplastic resin material having a thermoplastic resin material and one or plural primer layers laminated on the thermoplastic resin material, wherein at least one layer of the primer layers is a layer derived from a film.

公开(公告)号：US20220143954A1

公开(公告)日：2022-05-12

申请号：US17422959

申请日：2020-01-14

Applicant: SHOWA DENKO K.K.

Inventor： Kazuo OTANI ,  Shinji NUMAO

IPC: B32B15/08 ,  C09D5/00 ,  C09D163/00 ,  C09D169/00 ,  C09D175/04 ,  C09D167/02 ,  C09D133/06 ,  C23C26/00 ,  B29C65/70 ,  B29C65/02

Abstract: A metal-resin bonded article includes a composite laminate including a metal base material having laminated thereon one layer or plural layers of a resin coating layer, and a resin material bonded and integrated thereto, the resin coating layer being laminated on a surface-treated surface of the metal base material, at least one layer of the resin coating layer containing a resin composition containing a linear chain polymer having a linear polymer structure polymerized on the metal base material, a bonding strength between the composite laminate and the resin material and an adhesion force between the metal base material and the resin coating layer satisfying particular conditions.

公开(公告)号：US20210179885A1

公开(公告)日：2021-06-17

申请号：US16770791

申请日：2018-11-27

Applicant: SHOWA DENKO K.K.

Inventor： Kazuo OTANI ,  Shinji NUMAO

IPC: C09D171/12 ,  B05D3/10 ,  B05D3/12 ,  B05D7/16 ,  B32B15/20 ,  B32B15/18 ,  B32B15/09 ,  B29C45/14

Abstract: To provide a composite laminate having excellent adhesiveness to a resin material imparted to a metal base material, such as an aluminum, and a method for producing the same, and a metal-resin bonded article using the composite laminate and a method for producing the same. A composite laminate 1 includes a metal base material 2 and one layer or plural layers of a resin coating layer 4 laminated on the metal base material 2, the resin coating layer 4 is laminated on a surface-treated surface of the metal base material 2, and at least one layer of the resin coating layer 4 is formed of a resin composition containing an in situ polymerizable phenoxy resin.

公开(公告)号：US20240051237A1

公开(公告)日：2024-02-15

申请号：US18268036

申请日：2021-11-09

Applicant: SHOWA DENKO K.K.

Inventor： Nobuyuki TAKAHASHI ,  Masahiro SATO ,  Kazuo OTANI

IPC: B29C65/00

CPC classification number: B29C66/742 ,  B29C66/71

Abstract: Provided is a method for easily manufacturing a metal-polyolefin bonded body having high bonding strength. This method for manufacturing a metallic member-resin member bonded body comprises: preparing a film that includes at least one modified polyolefin layer selected from the group consisting of a layer containing a reaction product 1 of a maleic anhydride-modified polyolefin, a bifunctional epoxy resin, and a bifunctional phenol compound, a layer containing a reaction product 2 of a maleic anhydride-modified polyolefin and a thermoplastic epoxy resin, and a layer containing a mixture of a polyolefin and a thermoplastic epoxy resin; disposing the film on at least a part of the surface of a metallic substrate so as to expose the modified polyolefin layer, thereby forming a metallic member in which a resin coating layer is laminated on the metallic substrate; and bonding a resin member onto the resin coating layer of the metallic member.

公开(公告)号：US20230330946A1

公开(公告)日：2023-10-19

申请号：US18042492

申请日：2021-08-04

Applicant: SHOWA DENKO K.K.

Inventor： Kazuo OTANI ,  Nobuyuki TAKAHASHI ,  Ryota NIIBAYASHI

IPC: B29C65/64 ,  B29C65/32 ,  B29C65/54

CPC classification number: B29C65/64 ,  B29C65/32 ,  B29C65/54

Abstract: The present invention relates to a method for bonding a metal and a resin, including bonding a metal and a resin by high-frequency induction welding via an intermediate resin layer which causes a chemical reaction.

公开(公告)号：US20230132089A1

公开(公告)日：2023-04-27

申请号：US17912370

申请日：2021-03-09

Applicant: SHOWA DENKO K.K.

Inventor： Kazuo OTANI ,  Nobuyuki TAKAHASHI

IPC: B32B15/082 ,  B32B38/16

Abstract: To provide a bonding technique that is capable of bonding a metal and a resin with a sufficient bonding strength. A bonded article including a functional group-carrying metal surface and a functional group-carrying resin surface, which are bonded directly to each other, the functional group-carrying metal surface having one or more kind of a functional group selected from the group consisting of an amino group, an epoxy group, a mercapto group, a styryl group, a (meth)acryloyl group, an isocyanato group, and an alkenyl group, on a surface of a metal, the functional group-carrying resin surface having one or more kind of a functional group selected from the group consisting of an amino group, an epoxy group, a mercapto group, a styryl group, a (meth)acryloyl group, an isocyanato group, and an alkenyl group, on a surface of a resin.

公开(公告)号：US20210283655A1

公开(公告)日：2021-09-16

申请号：US17275715

申请日：2019-08-20

Applicant: SHOWA DENKO K.K.

Inventor： Kazuo OTANI ,  Atsushi UMINO ,  Kunihiro KUROKI

IPC: B05D7/00 ,  E01D22/00 ,  C04B41/00 ,  C04B41/45 ,  C04B41/48

Abstract: A structure repairing method applied to concrete structures ensures a short construction period and high reliability in a wide temperature range. The method includes a first repairing layer forming step of applying a radical-polymerizable resin composition (A) to a structure to form a first repairing layer, a second repairing layer forming step of applying a repairing material (X) containing a radical-polymerizable resin composition (Ax) and a filler (B) to the first repairing layer before the first repairing layer is cured, thereby forming a second repairing layer, and a repairing layer curing step of curing the radical-polymerizable resin composition (A) and the radical-polymerizable resin composition (Ax), wherein (A) and (Ax) each contain a radical-polymerizable resin (a1), a radical-polymerizable unsaturated monomer (a2), a hydroxy group-containing aromatic tertiary amine (a3), and an organic peroxide (a4), and (a1) and (a2) in each of (A) and (Ax) total 75% by mass or more.