公开(公告)号：US20240228844A9

公开(公告)日：2024-07-11

申请号：US18546968

申请日：2021-02-19

Applicant: TERAOKA SEISAKUSHO CO., LTD.

Inventor： Shohei OGINO ,  Kazuki ISHIKAWA ,  Yuuki IWAKAMI ,  Yasushi TSUCHIYA

IPC: C09J163/00

CPC classification number: C09J163/00

Abstract: The adhesive sheet includes an adhesive layer (A1L) in solid form at 18° C., wherein the adhesive layer (A1L) contains an epoxy resin, at least one surface of the adhesive layer (A1L) has a tackiness agent region (A2R) formed by partially providing a tackiness agent (A2), and a region where the tackiness agent region (A2R) is not formed on the surface is an adhesive-layer-exposed region (A1LR) where a surface of the adhesive layer (A1L) is exposed. This adhesive sheet has excellent temporary fixability at the time of sticking (a characteristic that exhibits the tackiness force necessary for temporary fixation) and adhesive force after heat curing.

公开(公告)号：US20240132761A1

公开(公告)日：2024-04-25

申请号：US18546968

申请日：2021-02-19

Applicant: TERAOKA SEISAKUSHO CO., LTD.

Inventor： Shohei OGINO ,  Kazuki ISHIKAWA ,  Yuuki IWAKAMI ,  Yasushi TSUCHIYA

IPC: C09J163/00

CPC classification number: C09J163/00

Abstract: The adhesive sheet includes an adhesive layer (A1L) in solid form at 18° C., wherein the adhesive layer (A1L) contains an epoxy resin, at least one surface of the adhesive layer (A1L) has a tackiness agent region (A2R) formed by partially providing a tackiness agent (A2), and a region where the tackiness agent region (A2R) is not formed on the surface is an adhesive-layer-exposed region (A1LR) where a surface of the adhesive layer (A1L) is exposed. This adhesive sheet has excellent temporary fixability at the time of sticking (a characteristic that exhibits the tackiness force necessary for temporary fixation) and adhesive force after heat curing.

公开(公告)号：US20210115309A1

公开(公告)日：2021-04-22

申请号：US17048024

申请日：2018-07-25

Applicant: TERAOKA SEISAKUSHO CO., LTD.

Inventor： Masashi NIWA ,  Kazuki ISHIKAWA ,  Yasushi TSUCHIYA

IPC: C09J7/38 ,  C09J7/26

Abstract: Disclosed is an adhesive tape having an adhesive layer on one side or both sides of a base 1, wherein the adhesive layer when having the adhesive layer on one side of the base 1, or at least one adhesive layer of two adhesive layers when having the adhesive layers on both sides of the base 1 has a first adhesive layer 2 in contact with the base 1 and a second adhesive region 3 in contact with the first adhesive layer 2 and which is situated on the surface side of the adhesive tape, and the storage elastic modulus G′ of the first adhesive layer 2 is higher than the storage elastic modulus G′ of the second adhesive region 3. This adhesive tape provides easy position adjustment and easy air removal at the time of sticking, and has excellent waterproofness after sticking.

公开(公告)号：US20220186085A1

公开(公告)日：2022-06-16

申请号：US17432042

申请日：2019-02-19

Applicant: TERAOKA SEISAKUSHO CO., LTD.

Inventor： Daichi KUSANO ,  Kazuki ISHIKAWA

IPC: C09J7/38 ,  C09J7/25

Abstract: An acrylic adhesive composition contains an acrylic copolymer (A), which includes an alkyl (meth)acrylate monomer (a1) having a linear and/or branched alkyl group having 6 to 10 carbon atoms and a nitrogen-containing monomer (a2) as polymer chain components of the acrylic copolymer (A), wherein an amount of change in the loss tangent (tan δ) in the range of 20° C. to 100° C. of the acrylic adhesive composition is 0.5 or less. An adhesive tape has at least one acrylic adhesive layer composed of the acrylic adhesive composition.