公开(公告)号：US20130123451A1

公开(公告)日：2013-05-16

申请号：US13676634

申请日：2012-11-14

Applicant: Nitto Denko Corporation

Inventor： Ai TAKEDA ,  Hiroaki KISHIOKA

IPC: C09J133/12 ,  C09J139/06

CPC classification number: C09J133/12 ,  C09J133/066 ,  C09J139/06

Abstract: The present invention provides a pressure-sensitive adhesive sheet excellent in anti-white turbidity and anti-foaming release property under a high-temperature and high-humidity environment and corrosion resistance. The invention provides a pressure-sensitive adhesive sheet including a pressure-sensitive adhesive layer which includes an acrylic polymer (A) and has a gel fraction of 70 to 100 wt %, wherein the acrylic polymer (A) is formed from a component including, as an essential monomer component, methyl methacrylate and a hydroxyl group-containing monomer in an amount of 10 to 40 wt % based on a total amount (100 wt %) of the monomer component, the component forming the acrylic polymer (A) substantially does not contain a carboxyl group-containing monomer.

Abstract translation: 本发明提供了在高温高湿环境下耐白浊浊度和消泡性能优异的耐腐蚀性的粘合片。 本发明提供一种压敏粘合片，其包含压敏粘合剂层，其包含丙烯酸类聚合物（A），凝胶分数为70〜100重量％，其中，所述丙烯酸系聚合物（A） 作为必需单体成分，甲基丙烯酸甲酯和含羟基单体的量相对于单体成分的总量（100重量％）为10〜40重量％，形成丙烯酸系聚合物（A）的成分基本上为 不含有含羧基的单体。

公开(公告)号：US20140272201A1

公开(公告)日：2014-09-18

申请号：US14202757

申请日：2014-03-10

Applicant: NITTO DENKO CORPORATION

Inventor： Ai TAKEDA ,  Katsuhiko KAMIYA ,  Kiyoe SHIGETOMI ,  Takahiro NONAKA

IPC: C09J133/08

CPC classification number: C09J133/066 ,  B32B2457/202 ,  B32B2457/208 ,  C09J7/22 ,  C09J7/38 ,  G02F1/13338 ,  Y10T428/1077 ,  Y10T428/2887 ,  Y10T428/2891

Abstract: It is an object of the invention to provide a pressure-sensitive adhesive capable of forming a pressure-sensitive adhesive layer having high resistance to sebum and high resistance to moisture-induced clouding and also having low dielectric constant. The invention relates to a pressure-sensitive adhesive comprising a (meth)acryl-based polymer obtained by polymerization of a monomer component containing 65 to 88 parts by weight of an alkyl (meth)acrylate having an alkyl group of 8 to 22 carbon atoms and 12 to 35 parts by weight of an alkyl (meth)acrylate having a secondary hydroxyl group based on 100 parts by weight of the total amount of the alkyl (meth)acrylate having an alkyl group of 8 to 22 carbon atoms and the alkyl (meth)acrylate having a secondary hydroxyl group.

Abstract translation: 本发明的目的是提供一种压敏粘合剂，其能够形成具有高耐皮脂性和高耐湿性引起的混浊并且也具有低介电常数的压敏粘合剂层。 本发明涉及一种压敏粘合剂，其包含通过聚合含有65至88重量份具有8至22个碳原子的烷基的（甲基）丙烯酸烷基酯的单体组分而获得的（甲基）丙烯酰基聚合物和 12〜35重量份基于碳原子数为8〜22的烷基的（甲基）丙烯酸烷基酯的总计100重量份的具有仲羟基的（甲基）丙烯酸烷基酯和（甲基）丙烯酸烷基酯 ）具有仲羟基的丙烯酸酯。