公开(公告)号：US20140308516A1

公开(公告)日：2014-10-16

申请号：US14352502

申请日：2012-10-12

Applicant: NITTO DENKO CORPORATION

Inventor： Kousuke Yonezaki ,  Tatsumi Amano ,  Yu Morimoto ,  Kazuma Mitsui ,  Kyoko Takashima

IPC: C09J7/02

CPC classification number: C09J7/38 ,  C08F220/18 ,  C08G77/46 ,  C09J7/22 ,  C09J133/02 ,  C09J133/08 ,  C09J2203/318 ,  C09J2205/114 ,  C09J2433/00 ,  C09J2483/00 ,  G02F2202/28 ,  Y10T428/2891 ,  Y10T428/31663 ,  C08F2220/1858 ,  C08F220/06 ,  C08F220/14

Abstract: Provided is a removable water-dispersible acrylic pressure-sensitive adhesive composition capable of forming a pressure-sensitive adhesive layer that is superior in antistatic properties (resistance to peeling-induced static build-up), removability, adhesion (adhesive properties), and the ability to prevent an increase in peel strength (adhesive strength) over time and also superior in less-staining properties on adherends, particularly, the ability to prevent white staining on adherends in a high-humidity environment. Also provided is a pressure-sensitive adhesive sheet having a pressure-sensitive adhesive layer made from such a pressure-sensitive adhesive composition. The removable water-dispersible acrylic pressure-sensitive adhesive composition contains an acrylic emulsion polymer including units derived from raw material monomers including at least (A) an alkyl (meth)acrylate and (B) 0.5 to 10% by weight of a carboxyl group-containing unsaturated monomer; and an alkylene oxide group-containing polysiloxane.

Abstract translation: 本发明提供能够形成抗静电性（耐剥离性静电累积性），可除去性，粘合性（粘合性）优异的压敏粘合剂层的可除去的水分散性丙烯酸系压敏粘合剂组合物， 防止随着时间的推移剥离强度（粘合强度）增加的能力，并且在被粘物上的染色性能也优异，特别是在高湿度环境下防止被粘附物白色染色的能力。 还提供了具有由这种压敏粘合剂组合物制成的压敏粘合剂层的压敏粘合片。 可拆卸的水分散性丙烯酸类压敏粘合剂组合物包含丙烯酸乳液聚合物，其包含衍生自至少包含（A）（甲基）丙烯酸烷基酯的原料单体的单元和（B）0.5至10重量％的羧基 - 含不饱和单体; 和含环氧烷基团的聚硅氧烷。

公开(公告)号：US20150024199A1

公开(公告)日：2015-01-22

申请号：US14330471

申请日：2014-07-14

Applicant: NITTO DENKO CORPORATION

Inventor： Yu Morimoto ,  Kazuma Mitsui ,  Tatsumi Amano

IPC: C09J7/02 ,  G02B1/04 ,  C09J133/08

CPC classification number: C09J133/08 ,  C09J4/06 ,  C09J7/385 ,  C09J133/06 ,  C09J2433/00 ,  C09J2467/006 ,  G02B1/04 ,  Y10T428/2852 ,  C08L33/10

Abstract: There is provided a removable water-dispersible pressure-sensitive adhesive composition to form a pressure-sensitive adhesive layer of a pressure-sensitive adhesive sheet capable of exhibiting good curl regulatability. There are also provided a pressure-sensitive adhesive sheet capable of exhibiting good curl regulatability, and an optical component having the pressure-sensitive adhesive sheet laminated thereon. The removable water-dispersible pressure-sensitive adhesive composition according to the present invention forms a pressure-sensitive adhesive layer of a pressure-sensitive adhesive sheet having an initial curl height of not less than 20 mm as determined by a curl test, and a difference in curl height of not more than 10 mm as determined by the curl test. The pressure-sensitive adhesive sheet according to the present invention has a pressure-sensitive adhesive layer formed of the removable water-dispersible pressure-sensitive adhesive composition. The optical component according to the present invention has the pressure-sensitive adhesive sheet laminated thereon.

Abstract translation: 提供一种可移除的水分散性压敏粘合剂组合物，以形成能够表现出良好卷曲调节性的压敏粘合片的压敏粘合剂层。 还提供了能够表现出良好的卷曲调节性的压敏粘合片，以及其上层叠有压敏粘合片的光学部件。 根据本发明的可去除的水分散性粘合剂组合物形成通过卷曲试验确定的初始卷曲高度不小于20mm的压敏粘合片的压敏粘合剂层， 卷曲高度不超过10毫米，由卷曲测试确定。 根据本发明的压敏粘合片具有由可去除的水分散性压敏粘合剂组合物形成的压敏粘合剂层。 根据本发明的光学部件具有层压在其上的压敏粘合片。

公开(公告)号：US20140272408A1

公开(公告)日：2014-09-18

申请号：US14352896

申请日：2012-10-12

Applicant: NITTO DENKO CORPORATION

Inventor： Tatsumi Amano ,  Yu Morimoto ,  Kazuma Mitsui ,  Kousuke Yonezaki ,  Kyoko Takashima

IPC: C09J7/02

CPC classification number: C08L33/02 ,  C08G77/46 ,  C08G2650/58 ,  C08K5/0075 ,  C08L2201/50 ,  C08L2201/54 ,  C09J7/22 ,  C09J7/38 ,  C09J133/02 ,  C09J133/08 ,  C09J133/26 ,  C09J171/02 ,  C09J2203/318 ,  C09J2205/102 ,  C09J2433/00 ,  Y10T428/2891 ,  C08F2220/1858 ,  C08F220/06 ,  C08F220/14 ,  C08F218/08 ,  C08F220/54

Abstract: Provided is a water-dispersible acrylic pressure-sensitive adhesive composition capable of forming a pressure-sensitive adhesive layer that can prevent static build-up at the time of peeling (antistatic properties), is superior in removability, in the ability to prevent an increase in peel strength (adhesive strength) over time among the adhesive properties, as well as in appearance properties (decrease of appearance defects due to dents or the like), and also in less-staining properties on adherends, particularly, in the ability to prevent white staining on adherends in high-humidity environments (the ability to prevent white staining). The water-dispersible acrylic pressure-sensitive adhesive composition according to the invention contains an acrylic emulsion polymer containing, as monomer components, (i) an alkyl (meth)acrylate, (ii) a carboxyl group-containing unsaturated monomer, and (iii) at least one monomer selected from the group consisting of methyl methacrylate, vinyl acetate, and diethylacrylamide, and an ionic compound, and is characterized in that 70 to 99.5% by weight of the alkyl (meth)acrylate (i) is contained in the total amount of the monomer components.

Abstract translation: 本发明提供一种能够形成能够防止剥离时的静电积聚（抗静电性）的粘合剂层的防水性分散性丙烯酸系压敏粘合剂组合物，其除去性优异，防止增加的能力 在粘合性能以及外观性能（由凹痕等引起的外观缺陷减少）时的剥离强度（粘合强度）随着时间的推移，以及在被粘物上的污染性较差，特别是在防止 在高湿环境下的被粘物上白色染色（防止白色染色的能力）。 本发明的水分散性丙烯酸类粘合剂组合物含有（i）（甲基）丙烯酸烷基酯，（ii）含羧基的不饱和单体作为单体组分的丙烯酸乳液聚合物，和（iii） 至少一种选自甲基丙烯酸甲酯，乙酸乙烯酯和二乙基丙烯酰胺的单体和离子性化合物，其特征在于，总共含有70〜99.5重量％的（甲基）丙烯酸烷基酯（i） 单体组分的量。

公开(公告)号：US20140242384A1

公开(公告)日：2014-08-28

申请号：US14352455

申请日：2012-10-15

Applicant: NITTO DENKO CORPORATION

Inventor： Kyoko Takashima ,  Kazuma Mitsui ,  Yu Morimoto ,  Tatsumi Amano ,  Kousuke Yonezaki

IPC: C09J7/02

CPC classification number: C09J7/385 ,  C08L2201/54 ,  C08L2312/00 ,  C09J133/02 ,  C09J133/08 ,  Y10T428/2848 ,  Y10T428/2891 ,  C08F2220/1858 ,  C08F220/14 ,  C08F220/06

Abstract: The present invention provides an acrylic water-dispersible pressure-sensitive adhesive composition that can prepare a removable adhesive layer having low contamination of an adherent. The acrylic water-dispersible pressure-sensitive removable adhesive composition according to the present invention comprises an acrylic emulsion polymer (A) comprising an alkyl (meth)acrylate ester and a carboxyl group-containing unsaturated monomer as essential raw material constitutive monomers and prepared by polymerization with a reactive surfactant containing no oxyalkylene group.

Abstract translation: 本发明提供一种丙烯酸水分散性压敏粘合剂组合物，其可以制备具有低粘附剂污染的可除去粘合剂层。 根据本发明的丙烯酸水分散性压敏可去除粘合剂组合物包含包含（甲基）丙烯酸烷基酯和含羧基的不饱和单体作为主要原料组成单体并通过聚合制备的丙烯酸乳液聚合物（A） 与不含氧化烯基的反应性表面活性剂。

公开(公告)号：US20130303669A1

公开(公告)日：2013-11-14

申请号：US13891592

申请日：2013-05-10

Applicant: NITTO DENKO CORPORATION

Inventor： Yu Morimoto ,  Kousuke Yonezaki ,  Tatsumi Amano ,  Kazuma Mitsui ,  Kyoko Takashima

IPC: C09J133/02

CPC classification number: C09J133/02 ,  C08L101/04 ,  C08L2201/54 ,  C09J133/04 ,  C09J133/16

Abstract: An aim of the prevention invention is to provide a water dispersion type acryl-based pressure-sensitive adhesive composition for re-peeling, which can prevent electrification of an adherend at the time of peeling (peeling antistatic properties) and which can form a pressure-sensitive adhesive layer excellent in adherability and re-peelable properties, and also to provide a pressure-sensitive adhesive sheet having a pressure-sensitive adhesive layer formed of the pressure-sensitive adhesive composition. The re-peelable water dispersion type acryl-based pressure-sensitive adhesive composition of the present invention contains an acrylic emulsion-based polymer composed of a (meth)acrylic acid alkyl ester and a carboxyl-containing unsaturated monomer as raw material monomers, a perfluoroalkyl-containing oligomer, and an ionic compound.

Abstract translation: 本发明的目的在于提供一种用于再剥离的水分散型丙烯酸类压敏粘合剂组合物，其可以防止剥离时的被粘物带电（剥离抗静电性），并且可以形成压敏粘合剂， 粘合性和再剥离性优异的粘合剂层，以及提供具有由压敏粘合剂组合物形成的粘合剂层的压敏粘合片。 本发明的可再剥离型水分散型丙烯酸系粘合剂组合物含有由（甲基）丙烯酸烷基酯和含羧基的不饱和单体作为原料单体构成的丙烯酸乳液系聚合物，全氟烷基 的低聚物和离子化合物。