-
公开(公告)号：US20220389284A1
公开(公告)日：2022-12-08
申请号：US17770145
申请日：2020-08-20
Applicant: NITTO DENKO CORPORATION
Inventor： Toru ISEKI , Masahito NIWA , Junji FUKUHARA , Ryosuke YOKOKAWA
IPC: C09J7/38
Abstract: Provided is a double-sided pressure-sensitive adhesive tape excellent in reworkability. A double-sided pressure-sensitive adhesive tape according to an embodiment of the present invention includes an acrylic pressure-sensitive adhesive, wherein the acrylic pressure-sensitive adhesive is formed from an acrylic pressure-sensitive adhesive composition, wherein the double-sided pressure-sensitive adhesive tape has a load at an elongation of 100% of 7 N/10 mm or less, and wherein the double-sided pressure-sensitive adhesive tape has a load at an elongation of 500% of 20 N/10 mm or less.
-
公开(公告)号：US20210171809A1
公开(公告)日：2021-06-10
申请号：US17075874
申请日：2020-10-21
Applicant: NITTO DENKO CORPORATION
Inventor： Hiromichi SUMIDA , Takuya FUJITA , Masahito NIWA
Abstract: A laminate including a laminated structure of a pressure-sensitive adhesive sheet, a reinforcing agent layer, and an adherend, the laminate being capable of expressing both of a high adhesive strength and high water resistance. The laminate shows an adhesive strength of 20 N/20 mm or more when the pressure-sensitive adhesive sheet is peeled from a laminated structural body where the adherend is a SUS plate, the laminate shows an adhesive strength of 20 N/20 mm or more when the pressure-sensitive adhesive sheet is peeled from a laminated structural body where the adherend is a polycarbonate plate, and the laminate shows an adhesive strength of 20 N/20 mm or more when the pressure-sensitive adhesive sheet is peeled from a laminated structural body where the adherend is an aluminum plate at 23° C. and 50% RH, and at a tensile rate of 300 mm/min and a peel angle of 180°.
-
公开(公告)号：US20200339842A1
公开(公告)日：2020-10-29
申请号：US16855178
申请日：2020-04-22
Applicant: NITTO DENKO CORPORATION
Inventor： Shigeki WATANABE , Masahito NIWA
IPC: C09J7/38 , C09J107/00 , C09J199/00 , C09J193/04 , C09J115/00
Abstract: Provided is a PSA sheet that shows excellent adhesive strength to both high-polar and low-polar adherends with reduced dependence on fossil-resource-based materials. The PSA sheet has a PSA layer formed from a natural rubber-based PSA. At least 20% by weight of all repeat units forming the base polymer of the PSA are derived from an acrylic monomer. Biomass-derived carbons account for at least 50% of the total carbon content of the PSA layer. The PSA sheet has an adhesive strength of 18 N/20 mm or greater to a stainless steel plate (after left at 50° C. for 2 h) and an adhesive strength of 15 N/20 mm or greater to a polypropylene plate (after left at 50° C. for 2 h).
-
公开(公告)号：US20200095474A1
公开(公告)日：2020-03-26
申请号：US16577003
申请日：2019-09-20
Applicant: NITTO DENKO CORPORATION
Inventor： Shigeki WATANABE , Masahito NIWA , Masataka NISHIWAKI , Kazuki MINOURA
IPC: C09J7/38 , C09J7/10 , C09J107/00
Abstract: Provided is a PSA sheet for electronic devices with reduced dependence on fossil-resource-based materials and is also suited for use in electronic devices. The PSA sheet for use in electronic devices provided has a PSA layer formed from a natural rubber-based PSA. At least 20% by weight of all repeat units forming the base polymer of the PSA comes from an acrylic monomer and at least 50% of the total carbon content of the PSA layer is attributed to biomass-derived carbons. The PSA sheet has a shear bonding strength of 1.8 MPa or greater.
-
5.发明申请公开(公告)号：US20130289210A1
公开(公告)日：2013-10-31
申请号：US13870240
申请日：2013-04-25
Applicant: NITTO DENKO CORPORATION
Inventor： Kaori MIKI , Masato FUJITA , Takahiro NONAKA , Masahito NIWA
IPC: C09J139/06
CPC classification number: C09J139/06 , C09J133/066
Abstract: A pressure-sensitive adhesive composition, including an acrylic polymer produced by polymerizing a monomer component or a partial polymerization product of the monomer component. The monomer component includes alkyl (meth)acrylate having an alkyl group having 10 to 13 carbon atoms and a polar group-containing monomer other than a carboxyl group-containing monomer. A content of the alkyl (meth)acrylate is 40 wt % or more and less than 80 wt % with respect to a total amount (100 wt %) of the monomer component. A content of the polar group-containing monomer is 7 wt % or more with respect to the total amount of the monomer component. A total content of the polar group-containing monomer and an alicyclic monomer is 15 wt % or more with respect to the total amount of the monomer component.
Abstract translation: 一种压敏粘合剂组合物，包括通过聚合单体组分或单体组分的部分聚合产物而制备的丙烯酸聚合物。 单体组分包括具有10至13个碳原子的烷基的（甲基）丙烯酸烷基酯和除含羧基单体之外的含极性基团的单体。 相对于单体组分的总量（100重量％），（甲基）丙烯酸烷基酯的含量为40重量％以上且小于80重量％。 相对于单体成分的总量，含极性基团的单体的含量为7重量％以上。 相对于单体成分的总量，含极性基团的单体和脂环族单体的总含量为15重量％以上。
-
Patent Agency Ranking
公开(公告)号：US20230071452A1
公开(公告)日：2023-03-09
申请号：US17792916
申请日：2020-08-20
Applicant: NITTO DENKO CORPORATION
Inventor： Junji FUKUHARA , Masahito NIWA , Toru ISEKI , Ryosuke YOKOKAWA
IPC: C09J7/38 , C09J7/24 , C09J133/08
Abstract: A double-sided pressure-sensitive adhesive tape includes an acrylic pressure-sensitive adhesive, wherein the acrylic pressure-sensitive adhesive is formed from an acrylic pressure-sensitive adhesive composition, wherein the acrylic pressure-sensitive adhesive composition contains an acrylic partially polymerized product obtained by polymerizing a monomer component (m1), a monomer component (m2), a cross-linking agent, and a photopolymerization initiator, wherein the monomer component (m2) contains an alkyl (meth)acrylate having, at an ester terminal thereof, an alkyl group having 4 to 10 carbon atoms, and a polymerizable monomer whose corresponding homopolymer has a Tg of 0° C. or more, wherein in the monomer component (m2), a content of the polymerizable monomer whose corresponding homopolymer has a Tg of 0° C. or more is from 10 parts by weight to 90 parts by weight with respect to 100 parts by weight of the alkyl (meth)acrylate having, at an ester terminal thereof, an alkyl group having 4 to 10 carbon atoms.
-
公开(公告)号：US20220169895A1
公开(公告)日：2022-06-02
申请号：US17441032
申请日：2020-03-12
Applicant: NITTO DENKO CORPORATION
Inventor： Shigeki WATANABE , Masahito NIWA
Abstract: Provided is a PSA sheet that allows reduction of the dependence on fossil-resource-based materials as the PSA sheet at large while having good processability. Provided is a PSA sheet having a substrate layer comprising a polyester resin, and a PSA layer placed on at least one face of the substrate layer. At least 50% of all carbons in the PSA layer are biomass-derived carbons. The polyester resin comprises biomass-derived carbons.
-
公开(公告)号：US20220146454A1
公开(公告)日：2022-05-12
申请号：US17432536
申请日：2019-02-22
Applicant: NITTO DENKO CORPORATION
Inventor： Shigeki WATANABE , Masahito NIWA , Yuki TSUBAKI
Abstract: An objective is to provide a method for judging the authenticity of a product or component. Provided is a method for judging product or component authenticity. The method includes a step of determining the percentage of radioactive carbon-14 based on ASTM 6866 with respect to at least one constituent that a product or component of interest obtained has. Here, at least one constituent that an authentic product or component has and that corresponds to the constituent of the product or component of interest includes a resin comprising a prescribed percentage of radioactive carbon-14.
-
公开(公告)号：US20210189189A1
公开(公告)日：2021-06-24
申请号：US17069996
申请日：2020-10-14
Applicant: NITTO DENKO CORPORATION
Inventor： Masahito NIWA , Takuya FUJITA , Hiromichi SUMIDA
IPC: C09J7/38
Abstract: Provided is a double-sided pressure-sensitive adhesive tape that can express both of excellent impact resistance and excellent reworkability. The pressure-sensitive adhesive tape includes: a base material layer; and a pressure-sensitive adhesive layer arranged on at least one side of the base material layer, wherein the base material layer has a specific gravity of 0.8 g/cm3 or more, and wherein the pressure-sensitive adhesive tape has a 100% modulus at 23° C. and 50% RH of 50 MPa or less.
-
公开(公告)号：US20210170729A1
公开(公告)日：2021-06-10
申请号：US17075886
申请日：2020-10-21
Applicant: NITTO DENKO CORPORATION
Inventor： Hiromichi SUMIDA , Takuya FUJITA , Masahito NIWA
Abstract: A laminate including a laminated structure of a pressure-sensitive adhesive sheet, a reinforcing agent layer, and an adherend. The laminate expresses both of a high adhesive strength and high impact resistance. The laminate shows an adhesive strength of 20 N/20 mm or more when the pressure-sensitive adhesive sheet is peeled from a laminated structural body where the adherend is a SUS plate, the laminate shows an adhesive strength of 20 N/20 mm or more when the pressure-sensitive adhesive sheet is peeled from a laminated structural body where the adherend is a polycarbonate plate, and the laminate shows an adhesive strength of 20 N/20 mm or more when the pressure-sensitive adhesive sheet is peeled from a laminated structural body where the adherend is an aluminum plate at 23° C. and 50% RH, and at a tensile rate of 300 mm/min and a peel angle of 180°.
-
-
-
-
-
-
-
-
-
Search Results
29
records
(took 0.021 seconds)
