公开(公告)号：US20150267089A1

公开(公告)日：2015-09-24

申请号：US14433106

申请日：2013-10-09

Applicant: MITSUBISHI PLASTICS, INC.

Inventor： Kahoru Niimi ,  Makoto Inenaga

IPC: C09J133/08 ,  G06F3/044 ,  C09J11/04

CPC classification number: C09J133/08 ,  B32B2405/00 ,  C08K2201/005 ,  C08K2201/011 ,  C09J7/10 ,  C09J11/04 ,  C09J2201/61 ,  C09J2203/318 ,  C09J2205/31 ,  C09J2433/00 ,  G02F1/13338 ,  G02F2202/28 ,  G06F3/044 ,  C08F2220/1825 ,  C08F218/08 ,  C08F2220/1858 ,  C08F220/20 ,  C08K3/36

Abstract: Provided is a novel transparent double-sided adhesive sheet which has corrosion resistance reliability that an adherend can be prevented from corrosion degradation, is also furnished with antifoaming reliability that foaming at a sticking interface does not occur, and also has an optical reliability that an increase in haze is little even in a hygrothermal environment. Proposed is a transparent double-sided adhesive sheet which is firstly characterized to have an adhesive layer containing a (meth)acrylate ester copolymer containing a carboxyl group-containing monomer as a copolymerization component at less than 2% by mass and silica fine particles having an average particle size of from 4 to 500 nm or less, and secondly characterized in that the adhesive layer is curable by heat or ultraviolet light.

Abstract translation: 本发明提供一种新颖的透明双面粘合片，其具有可以防止被粘物腐蚀降解的耐腐蚀性的可靠性，并且还具有消泡可靠性，即不发生在粘接界面发泡，并且还具有增加光学可靠性的光学可靠性 即使在潮湿的环境中，阴霾也很少。 提出了一种透明双面粘合片，其首先特征在于具有包含含有含羧基单体作为共聚成分的（甲基）丙烯酸酯共聚物的粘合剂层，其含量小于2质量％，二氧化硅微粒具有 平均粒径为4〜500nm以下，其次，通过加热或紫外光固化粘合剂层。

公开(公告)号：US20140349100A1

公开(公告)日：2014-11-27

申请号：US14454747

申请日：2014-08-08

Applicant: Mitsubishi Plastics, Inc.

Inventor： Kahoru NIIMI ,  Hidejirou Yoshikawa ,  Takahisa Uchida ,  Makoto Inenaga

IPC: C09J7/00

CPC classification number: C09J7/00 ,  C09J7/10 ,  C09J133/08 ,  C09J2201/40 ,  C09J2201/622 ,  C09J2203/318 ,  C09J2433/00 ,  G02F2202/28

Abstract: A novel transparent double-sided adhesive sheet for image display device is provided, that, under the constraint of holding down the thickness of the adhesive sheet to 250 μm or less, can relieve a distortion arising within the adhesive sheet after laminating even if a member has a stepped portion of 50 μm to 100 μm in height on the laminating surface.Proposed is a transparent double-sided adhesive sheet for image display device which is used for the purpose of laminating an image display device constitutive member having on a laminating surface a stepped portion of 50 μm to 100 μm in height and a flat surface portion, and another image display device constitutive member, wherein a thickness of the maximum thickness portion of the adhesive sheet is 250 μm or less, and a gel fraction (a) at a position in contact with a stepped portion after laminating is 10% or greater and smaller than a gel fraction (b) at a position in contact with a flat surface portion.

公开(公告)号：US09441141B2

公开(公告)日：2016-09-13

申请号：US14454747

申请日：2014-08-08

Applicant: Mitsubishi Plastics, Inc.

Inventor： Kahoru Niimi ,  Hidejirou Yoshikawa ,  Takahisa Uchida ,  Makoto Inenaga

IPC: B32B3/18 ,  C09J7/00 ,  C09J133/08

CPC classification number: C09J7/00 ,  C09J7/10 ,  C09J133/08 ,  C09J2201/40 ,  C09J2201/622 ,  C09J2203/318 ,  C09J2433/00 ,  G02F2202/28

Abstract: A novel transparent double-sided adhesive sheet for image display device is provided, that, under the constraint of holding down the thickness of the adhesive sheet to 250 μm or less, can relieve a distortion arising within the adhesive sheet after laminating even if a member has a stepped portion of 50 μm to 100 μm in height on the laminating surface.Proposed is a transparent double-sided adhesive sheet for image display device which is used for the purpose of laminating an image display device constitutive member having on a laminating surface a stepped portion of 50 μm to 100 μm in height and a flat surface portion, and another image display device constitutive member, wherein a thickness of the maximum thickness portion of the adhesive sheet is 250 μm or less, and a gel fraction (a) at a position in contact with a stepped portion after laminating is 10% or greater and smaller than a gel fraction (b) at a position in contact with a flat surface portion.

Abstract translation: 提出了一种用于图像显示装置的透明双面粘合片，其用于层压具有在层压表面上的高度为50μm至100μm的台阶部分和平坦表面部分的图像显示装置构成部件，以及 另一种图像显示装置构成部件，其中粘合片的最大厚度部分的厚度为250μm以下，层叠后的与阶梯部接触的位置处的凝胶分数（a）为10％以上 比在与平坦表面部分接触的位置处的凝胶分数（b）。

公开(公告)号：US20150291852A1

公开(公告)日：2015-10-15

申请号：US14440179

申请日：2013-10-10

Applicant: MITSUBISHI PLASTICS, INC.

Inventor： Ryota Yamamoto ,  Makoto Inenaga ,  Kazunori Inoue ,  Mitsuru Kojima

IPC: C09J7/02 ,  B32B3/30 ,  B32B3/02 ,  B32B7/12

CPC classification number: C09J7/02 ,  B32B3/02 ,  B32B3/04 ,  B32B3/30 ,  B32B7/045 ,  B32B7/06 ,  B32B7/12 ,  B32B27/08 ,  B32B27/308 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  B32B27/365 ,  B32B27/40 ,  B32B2307/306 ,  B32B2307/412 ,  B32B2307/712 ,  B32B2307/748 ,  B32B2405/00 ,  B32B2457/20 ,  C09J7/00 ,  C09J7/10 ,  C09J2201/128 ,  C09J2201/28 ,  C09J2203/318 ,  C09J2400/22 ,  G02F1/133308 ,  G02F2202/28

Abstract: Provided is a novel double-sided adhesive sheet for image display device which can be bonded to the adhesion surface in close contact without space therebetween although there is a step due to printing or the like on the adhesion surface to be bonded to the adhesive sheet. The double-sided adhesive sheet for image display device 1 of the invention is a sheet to bond any two adherends selected from a surface protective panel 2, a touch panel 3, and an image display panel, and the sheet is characterized in that at least one of the adherends (surface protective panel 2) has a stepped portion 2b on an adhesion surface 2a to adhere to the double-sided adhesive sheet 1 and the surface shape of the bonding surface 1a of the double-sided adhesive sheet 1 to be bonded to the adhesion surface 2a is shaped in accordance with the surface shape of the adhesion surface 2a.

Abstract translation: 提供了一种用于图像显示装置的新型双面粘合片，其可以紧密接触而粘合到粘合表面上，尽管在与粘合片粘合的粘合表面上由于印刷等而导致步骤。 本发明的图像显示装置1的双面粘合片是将从表面保护面板2，触摸面板3和图像显示面板中选择的任何两个被粘物粘合的片材，其特征在于，至少 被粘物（表面保护面板2）中的一个在粘合面2a上具有附着在双面粘合片1上的台阶部2b和要粘合的双面粘合片1的接合面1a的表面形状 粘合表面2a根据粘合表面2a的表面形状成形。

公开(公告)号：US20150225625A1

公开(公告)日：2015-08-13

申请号：US14428222

申请日：2013-10-01

Applicant: MITSUBISHI PLASTICS, INC.

Inventor： Kahoru Niimi ,  Makoto Inenaga ,  Takahisa Uchida ,  Ryota Yamamoto

IPC: C09J133/08 ,  B32B38/10 ,  B32B37/18 ,  B32B38/00 ,  C09J5/06 ,  B32B37/12

CPC classification number: C09J133/08 ,  B32B37/1284 ,  B32B37/18 ,  B32B38/0008 ,  B32B38/10 ,  B32B2037/1246 ,  B32B2037/1253 ,  B32B2307/42 ,  B32B2307/726 ,  B32B2457/20 ,  B32B2457/208 ,  C09J4/00 ,  C09J4/06 ,  C09J5/00 ,  C09J5/06 ,  C09J7/10 ,  C09J2201/134 ,  C09J2201/622 ,  C09J2203/318 ,  C09J2205/302 ,  C09J2433/00 ,  G02F1/13338 ,  G02F2001/133331 ,  G02F2202/28 ,  Y10T428/31935 ,  C08F2220/1825 ,  C08F218/08

Abstract: Provided is a novel double-sided pressure-sensitive adhesive sheet that can achieve both the repeelability and the reliability in the pressure sensitive adhesive surface such as the occurrence of foaming. Proposed is a repeelable double-sided pressure-sensitive adhesive sheet comprising a pressure sensitive adhesive layer containing a (meth)acrylate ester copolymer as a base polymer, in which the (meth)acrylate ester copolymer has a content of a carboxyl group-containing monomer as a copolymerization component of 2% by mass or less and the pressure sensitive adhesive layer is curable by heat or ultraviolet light and satisfies the following physical properties (1) and (2): (1) a 180° peel force is 5.0 N/cm or more when one surface of the double-sided pressure-sensitive adhesive sheet is superimposed on soda lime glass, a roller of 1 kg is reciprocated one time to crimp the two, the crimped resultant is allowed to stand for 24 hours in an environment of a temperature of 23° C. and a relative humidity of 40% RH, and then the double-sided pressure-sensitive adhesive sheet is peeled off from the soda lime glass at a temperature of 23° C. and a peel rate of 60 mm/min; and (2) a 180° peel force is 4.0 N/cm or less when one surface of the double-sided pressure-sensitive adhesive sheet is superimposed on soda lime glass, a roller of 1 kg is reciprocated one time to crimp the two, the crimped resultant is allowed to stand for 24 hours in an environment of a temperature of 23° C. and a relative humidity of 40% RH and allowed to absorb moisture by storing for 15 hours in a humidified environment of a temperature of 60° C. and 90% RH, and then the double-sided pressure-sensitive adhesive sheet is peeled off from the soda lime glass at a temperature of 23° C. and a peel rate of 60 mm/min immediately after absorbing moisture.