公开(公告)号：US20240174899A1

公开(公告)日：2024-05-30

申请号：US18552654

申请日：2021-03-31

Applicant: TERAOKA SEISAKUSHO CO., LTD.

Inventor： Yasushi TSUCHIYA ,  Shoko OKAMURA

IPC: C09J7/38 ,  C09J133/10

CPC classification number: C09J7/385 ,  C09J133/10 ,  C09J2301/122 ,  C09J2301/302 ,  C09J2301/312 ,  C09J2301/408

Abstract: An acrylic pressure-sensitive adhesive composition contains a pressure-sensitive adhesive composition including an acrylic copolymer (A) wherein a theoretical glass transition temperature (theoretical Tg, unit K) thereof is referred to as “a”, and a crosslinking agent (B) wherein a weight average molecular weight (×104) thereof is referred to as “b”, and wherein an amount of a monomer (AHTg) having a glass transition temperature (Tg′) of 273 K or higher and 437 K or lower included in a monomer component of the acrylic copolymer (A) (a percentage with respect to a mass of all monomer components, unit %) is referred to as “c”, wherein a pressure-sensitive adhesiveness index represented by an inverse of the cube root of the product of a·b·c is 1.5×10−2 or more and 2.0×10−2 or less.

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：US20230159793A1

公开(公告)日：2023-05-25

申请号：US17995288

申请日：2021-02-02

Applicant: TERAOKA SEISAKUSHO CO., LTD.

Inventor： Yasushi TSUCHIYA ,  Miho SAMPEI

IPC: C09J4/00 ,  C09J133/10

CPC classification number: C09J4/00 ,  C09J133/10 ,  C09J2203/326 ,  C09J2301/312

Abstract: A crosslinking adhesive composition containing an acrylic copolymer with 3 parts by mass or more and less than 25 parts by mass of component (A1), having two or more hydroxyl group-containing (meth)acrylate monomers, each of which has a defined molecular structure; 5 parts by mass or more and less than 25 parts by mass of component (A2) having a carboxylic acid group-containing (meth)acrylate monomer; 5 parts by mass or more and less than 30 parts by mass of component (A3) having a (meth)acrylic acid alkyl ester monomer with a defined molecular structure; and 50 parts by mass or more and less than 90 parts by mass of component (A4) having a (meth)acrylic acid alkyl ester monomer having a defined molecular structure, with respect to 100 parts by mass consisting of the sum of components (A1) to (A4).

公开(公告)号：US20210147670A1

公开(公告)日：2021-05-20

申请号：US16624222

申请日：2017-06-22

Applicant: TERAOKA SEISAKUSHO CO., LTD.

Inventor： Yasushi TSUCHIYA ,  Goh TANAKA

IPC: C08L33/10 ,  C08F20/06 ,  C09J7/24

Abstract: Provided is an acrylic resin composition having high chemical resistance and high oil resistance. This acrylic resin composition contains a polymer that includes a unit derived from a predetermined monomer, wherein the proportion of the unit derived from the predetermined monomer contained in the polymer to 100% by mass of all monomer units constituting the polymer is 40-99% by mass, and the tensile strength of the acrylic resin composition after being immersed in oleic acid for 24 hours is 50% or more of the value of the tensile strength thereof before being immersed in oleic acid.

公开(公告)号：US20200239740A1

公开(公告)日：2020-07-30

申请号：US16642623

申请日：2017-08-30

Applicant: TERAOKA SEISAKUSHO CO., LTD.

Inventor： Issei TSUBOUCHI ,  Yasushi TSUCHIYA

IPC: C09J7/26 ,  C09J7/38

Abstract: Disclosed is an adhesive tape having an adhesive layer on one side or both sides of a polyolefin-based foam substrate containing closed cells, wherein the 65% compressive strength measured by compressive strength measurement according to JIS K 7181 is 6.0 MPa or less and the 80% compressive strength thereof is 20 MPa or less. This adhesive tape is excellent in flexibility at high compression, and excellent in performances such as, for example, impact resistance and, stability when deformed greatly.

公开(公告)号：US20180237673A1

公开(公告)日：2018-08-23

申请号：US15754557

申请日：2015-08-25

Applicant: TERAOKA SEISAKUSHO CO., LTD.

Inventor： Yasushi TSUCHIYA ,  Masashi NIWA

IPC: C09J201/02 ,  C09J7/24

CPC classification number: C09J201/02 ,  C09J7/20 ,  C09J7/243 ,  C09J7/26 ,  C09J2201/128 ,  C09J2203/30 ,  C09J2203/318 ,  C09J2205/114 ,  C09J2423/046 ,  C09J2431/006

Abstract: Disclosed is an adhesive tape wherein the adhesive tape has an adhesive layer on one side or both sides of a base, the base contains 30% by mass or more of an ethylene-vinyl acetate copolymer, and the tensile modulus of the base measured according to JIS K7161 2014 is 30 N/mm2 or more, and the adhesive tape has excellent properties such as impact resistance, an antistatic property, shear deformation rate during heating and pressing force.