公开(公告)号：US20130123450A1

公开(公告)日：2013-05-16

申请号：US13673078

申请日：2012-11-09

申请人： NITTO DENKO CORPORATION

发明人： Shou Takarada ,  Takahiro Nonaka

IPC分类号： C09J139/06

CPC分类号： C09J139/06

摘要： A pressure-sensitive adhesive sheet excellent in the level difference absorbability, in particular, in the level difference absorbability for a high level difference, and also excellent in workability is provided. The pressure-sensitive adhesive sheet of the present invention is a pressure-sensitive adhesive sheet including a pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesive layer includes an acrylic polymer obtained by polymerizing monomer components; the monomer components includes alkyl (meth)acrylate having a linear or branched alkyl group having 10 to 16 carbon atoms; the content of the alkyl (meth)acrylate is 70% by weight or more in relation to the total amount (100% by weight) of the monomers; and the gel fraction of the pressure-sensitive adhesive layer is 50% by weight or more.

摘要翻译： 提供了水平差吸收性，特别是高水平差的水平差吸收性和加工性优异的粘合片。 本发明的压敏粘合片是包含压敏粘合剂层的压敏粘合片，其中压敏粘合剂层包括通过聚合单体组分而获得的丙烯酸类聚合物; 单体组分包括具有10至16个碳原子的直链或支链烷基的（甲基）丙烯酸烷基酯; （甲基）丙烯酸烷基酯的含量相对于单体的总量（100重量％）为70重量％以上。 并且压敏粘合剂层的凝胶分数为50重量％以上。

公开(公告)号：US11319462B2

公开(公告)日：2022-05-03

申请号：US16260459

申请日：2019-01-29

申请人： NITTO DENKO CORPORATION

发明人： Itsuhiro Hatanaka ,  Masahito Niwa ,  Taiki Shimokuri ,  Shou Takarada ,  Takahiro Nonaka ,  Keisuke Hirano ,  Fumika Kawatake ,  Mika Ikemura

IPC分类号： C09J7/38 ,  C09J7/10 ,  C09J7/20 ,  C09J133/16 ,  C09J133/10 ,  C09J133/08 ,  C09J175/16 ,  C09J175/06 ,  C09J175/04 ,  C09J175/08 ,  C09J175/14 ,  C09J7/40 ,  C09J133/06

摘要： The pressure sensitive adhesive sheet is a sheet shaped pressure sensitive adhesive including an acryl-based base polymer. The acryl-based base polymer contains an acryl-based segment and a urethane-based segment, and a content of the urethane-based segment is 3 to 30 parts by weight based on 100 parts by weight of the acryl-based segment. The urethane-based segment includes at least one urethane chain selected from the group consisting of a polyether urethane and a polyester urethane. The content of the urethane-based segment other than the polyether urethane-based segment is 15 parts by weight or less based on 100 parts by weight of the acryl-based segment.

公开(公告)号：US20220106501A1

公开(公告)日：2022-04-07

申请号：US17492843

申请日：2021-10-04

申请人： NITTO DENKO CORPORATION

发明人： Shinya Yamamoto ,  Sho Takarada ,  Takahiro Nonaka

IPC分类号： C09J7/38 ,  C08F220/18 ,  C08F220/20

摘要： Pressure sensitive adhesive sheet has a shear storage elastic modulus of 3×104 Pa or more at 80° C. In the pressure sensitive adhesive sheet, an absolute value of a difference ΔG′ between a shear storage elastic modulus at 25° C. after a weather resistance test and a shear storage elastic modulus at 25° C. before the weather resistance test is 5×104 Pa or less, wherein the weather resistance test is conducted by applying light from a xenon lamp with an irradiation intensity of 0.63 W/cm2 at a wavelength of 340 nm for 500 hours. An increment in the amount of transmitted light b* before and after the weather resistance test is preferably 0.5 or less.

公开(公告)号：US10852455B2

公开(公告)日：2020-12-01

申请号：US14891492

申请日：2015-01-16

申请人： NITTO DENKO CORPORATION

发明人： Toru Umemoto ,  Hirofumi Katami ,  Hiroyuki Takao ,  Takahiro Nonaka ,  Atsushi Yasui ,  Takami Hikita

IPC分类号： G02B1/111 ,  B32B7/12 ,  B32B27/08 ,  B32B27/36 ,  B32B27/06 ,  B32B7/02 ,  B32B37/12 ,  C09J7/38 ,  C09J11/02 ,  C09J11/04 ,  C09J5/02 ,  B29D11/00

摘要： A laminate of optical elements comprises a transparent first optical element, a second optical element, and a transparent pressure-sensitive adhesive layer for bonding the first optical element to the second optical element. The pressure-sensitive adhesive layer comprises a base adhesive zone, a transparent refractive index-adjusting zone. The base adhesive zone is made essentially of a transparent base pressure-sensitive adhesive material and formed over a given range from a first principal surface of the pressure-sensitive adhesive layer facing the first optical element, in a thickness direction of the pressure-sensitive adhesive layer. The a transparent, adherent, refractive index-adjusting zone is formed over a given range from a second principal surface of the pressure-sensitive adhesive layer facing the second optical element.

公开(公告)号：US08920601B2

公开(公告)日：2014-12-30

申请号：US13672876

申请日：2012-11-09

申请人： Nitto Denko Corporation

发明人： Kaori Miki ,  Masahito Niwa ,  Takahiro Nonaka ,  Masato Fujita

IPC分类号： B32B38/00 ,  B32B43/00

CPC分类号： B32B43/006 ,  B32B2315/08 ,  Y10S156/924 ,  Y10S156/941 ,  Y10S156/943 ,  Y10T156/1153 ,  Y10T156/1168 ,  Y10T156/1174 ,  Y10T156/1189 ,  Y10T156/1967 ,  Y10T156/1972

摘要： Disclosed is a method for detaching two plates bonded through a double-coated pressure-sensitive adhesive sheet without substantially applying such a force (load) to the plates as to cause large distortion (deformation) leading to fracture or breakage of the plates. The method detaches two plates bonded through a double-coated pressure-sensitive adhesive sheet by applying a force to at least one of the two plates at least in a direction normal to the plate at such a temperature that the double-coated pressure-sensitive adhesive sheet has a storage elastic modulus of 1.0×107 Pa or more as measured by dynamic viscoelastic measurement.

摘要翻译： 公开了一种用于分离通过双面压敏粘合片粘合的两块板的方法，而基本上不对板施加这种力（负荷），导致板的断裂或断裂造成大的变形（变形）。 该方法通过在双层压敏粘合剂的温度下至少沿垂直于板的方向施加力至两个板中的至少一个来分离通过双面压敏粘合片粘合的两个板， 通过动态粘弹性测量测量，片材的储能弹性模量为1.0×10 7 Pa以上。

公开(公告)号：US20130122288A1

公开(公告)日：2013-05-16

申请号：US13672938

申请日：2012-11-09

申请人： Nitto Denko Corporation

发明人： Kaori Miki ,  Masahito Niwa ,  Takahiro Nonaka ,  Masato Fujita

IPC分类号： C09J133/04 ,  C09J7/00

CPC分类号： C09J133/04 ,  C09J7/00 ,  C09J133/066 ,  C09J133/26 ,  Y10T428/28

摘要： Disclosed is a pressure-sensitive adhesive composition capable of forming a pressure-sensitive adhesive layer having satisfactory tackiness at room temperature and superior reworkability at a low temperature. The pressure-sensitive adhesive composition includes an acrylic polymer formed from a monomer component through polymerization, or a partial polymer of the monomer component. The monomer component includes a (meth)acrylic alkyl ester whose alkyl moiety being a linear or branched-chain alkyl group having 10 to 13 carbon atoms and includes substantially no carboxyl-containing monomer.

摘要翻译： 公开了一种压敏粘合剂组合物，其能够在室温下形成具有令人满意的粘性的粘合剂层，并且在低温下具有优异的再加工性。 压敏粘合剂组合物包括通过聚合由单体组分形成的丙烯酸聚合物或单体组分的部分聚合物。 单体组分包括（甲基）丙烯酸烷基酯，其烷基部分是具有10至13个碳原子的直链或支链烷基，并且基本上不含羧基单体。

公开(公告)号：US20130323437A1

公开(公告)日：2013-12-05

申请号：US13962086

申请日：2013-08-08

申请人： NITTO DENKO CORPORATION

发明人： Tomohide Banba ,  Hiroaki Kishioka ,  Takahiro Nonaka ,  Masatomo Natsui ,  Hiroaki Fumoto ,  Shou Takarada ,  Takashi Suzuki

IPC分类号： C09J133/14 ,  C09J133/08

CPC分类号： C09J133/14 ,  B32B2457/202 ,  B32B2457/208 ,  C09J7/10 ,  C09J7/385 ,  C09J133/066 ,  C09J133/08 ,  C09J2203/318 ,  C09J2433/00 ,  G06F3/044 ,  Y10T428/1059 ,  Y10T428/1077 ,  Y10T428/24479 ,  Y10T428/28 ,  Y10T428/2891

摘要： Provided is a pressure-sensitive adhesive sheet for optical use which less suffers from a misoperation-causing change in capacitance upon application to an optical member.The pressure-sensitive adhesive sheet for optical use includes a pressure-sensitive adhesive layer and has a dielectric constant of from 2 to 8 at a frequency of 1 MHz and a dielectric loss tangent of more than 0 and 0.2 or less at a frequency of 1 MHz. The pressure-sensitive adhesive sheet for optical use preferably has a dielectric constant at a frequency of 1.0×106 Hz being 60% or more of that at a frequency of 1.0×104 Hz. In addition, the pressure-sensitive adhesive sheet for optical use preferably has an absolute value of difference between the dielectric loss tangent at a frequency of 1.0×106 Hz and that at a frequency of 1.0×104 Hz of 0.15 or less.

摘要翻译： 本发明提供一种光学用粘合片，其在光学构件的应用时容易产生误动作变化。 用于光学用途的压敏粘合片包括压敏粘合剂层，并且在1MHz的频率下的介电常数为2〜8，频率为1的介电损耗角正切大于0且为0.2以下 MHz。 用于光学用途的粘合片优选具有在1.0×106Hz的频率下的介电常数为1.0×104Hz频率的60％以上。 此外，用于光学用途的粘合片优选具有在1.0×106Hz的频率下的介电损耗角正切与1.0×104Hz的频率之间的绝对值为0.15或更小的绝对值。

公开(公告)号：US20130123417A1

公开(公告)日：2013-05-16

申请号：US13673172

申请日：2012-11-09

申请人： NITTO DENKO CORPORATION

发明人： Shou Takarada ,  Takahiro Nonaka

IPC分类号： C09J133/08

CPC分类号： C09J133/08 ,  C09J133/066 ,  C09J139/06

摘要： A pressure-sensitive adhesive sheet excellent in the resistance to clouding caused by humidification, and excellent in the level difference absorbability, in particular, in the level difference absorbability for a high level difference is provided. The pressure-sensitive adhesive sheet of the present invention is a pressure-sensitive adhesive sheet including a pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesive layer includes an acrylic polymer obtained by polymerizing monomer components; the monomer components includes alkyl (meth)acrylate having a linear or branched alkyl group having 10 to 16 carbon atoms and a hydrophilic monomer; the content of the alkyl (meth)acrylate is 30% by weight or more in relation to the total amount (100% by weight) of the monomers; and the content of the hydrophilic monomer is 10% by weight or more in relation to the total amount (100% by weight) of the monomers.

摘要翻译： 提供了由加湿引起的耐混浊性优异的水平差吸收性，特别是高水平差的水平差吸收性优异的压敏粘合片。 本发明的压敏粘合片是包含压敏粘合剂层的压敏粘合片，其中压敏粘合剂层包括通过聚合单体组分而获得的丙烯酸类聚合物; 单体组分包括具有10至16个碳原子的直链或支链烷基和亲水单体的（甲基）丙烯酸烷基酯; （甲基）丙烯酸烷基酯的含量相对于单体的总量（100重量％）为30重量％以上; 相对于单体的总量（100重量％），亲水性单体的含量为10重量％以上。

公开(公告)号：US20130118692A1

公开(公告)日：2013-05-16

申请号：US13672876

申请日：2012-11-09

申请人： NITTO DENKO CORPORATION

发明人： Kaori Miki ,  Masahito Niwa ,  Takahiro Nonaka ,  Masato Fujita

IPC分类号： B32B43/00

CPC分类号： B32B43/006 ,  B32B2315/08 ,  Y10S156/924 ,  Y10S156/941 ,  Y10S156/943 ,  Y10T156/1153 ,  Y10T156/1168 ,  Y10T156/1174 ,  Y10T156/1189 ,  Y10T156/1967 ,  Y10T156/1972

摘要： Disclosed is a method for detaching two plates bonded through a double-coated pressure-sensitive adhesive sheet without substantially applying such a force (load) to the plates as to cause large distortion (deformation) leading to fracture or breakage of the plates. The method detaches two plates bonded through a double-coated pressure-sensitive adhesive sheet by applying a force to at least one of the two plates at least in a direction normal to the plate at such a temperature that the double-coated pressure-sensitive adhesive sheet has a storage elastic modulus of 1.0×107 Pa or more as measured by dynamic viscoelastic measurement.

摘要翻译： 公开了一种用于分离通过双面压敏粘合片粘合的两块板的方法，而基本上不对板施加这种力（负荷），导致板的断裂或断裂造成大的变形（变形）。 该方法通过在双层压敏粘合剂的温度下至少沿垂直于板的方向施加力至两个板中的至少一个来分离通过双面压敏粘合片粘合的两个板， 通过动态粘弹性测量测量，片材的储能弹性模量为1.0×10 7 Pa以上。

公开(公告)号：US20140227502A1

公开(公告)日：2014-08-14

申请号：US14172141

申请日：2014-02-04

申请人： NITTO DENKO CORPORATION

发明人： Hirofumi Katami ,  Takahiro Nonaka ,  Hiroaki Kishioka

IPC分类号： C09J7/02 ,  C08K5/3475

CPC分类号： G06F3/041 ,  B32B2457/202 ,  B32B2457/208 ,  C08K5/005 ,  C08K5/3475 ,  C09J7/29 ,  C09J7/385 ,  C09J133/066 ,  C09J139/06 ,  C09J2201/606 ,  C09J2203/318 ,  C09J2205/102 ,  C09J2400/163 ,  C09J2433/00 ,  G02F1/13338 ,  G06F2203/04103 ,  Y10T428/1036 ,  Y10T428/105 ,  Y10T428/1059 ,  Y10T428/1077 ,  Y10T428/2887

摘要： Provided are an optical component capable of suppressing the occurrence of undulations, having an excellent corrosion inhibition effect while maintaining a high level of adhesion reliability and transparency, as well as a pressure-sensitive adhesive layer and a pressure-sensitive adhesive sheet that can produce such an optical component efficiently and at a low cost. The present invention provides an optical pressure-sensitive adhesive layer comprising a base polymer and a rust inhibitor, characterized in that the base polymer does not or substantially does not contain an acid group-containing monomer as a constituent monomer component, and that an 85° C. modulus of elasticity is not less than 5.0×104 Pa.

摘要翻译： 提供能够抑制起伏的发生的光学部件，在保持高水平的粘合可靠性和透明性的同时具有优异的防腐蚀效果，以及可以生产这样的粘合剂层和压敏粘合片 光学部件有效且成本低廉。 本发明提供一种包含基础聚合物和防锈剂的光学粘合剂层，其特征在于，所述基础聚合物不含或基本上不含有含酸基的单体作为构成单体组分，并且85° C.弹性模量不小于5.0×104 Pa。