公开(公告)号：US20150004407A1

公开(公告)日：2015-01-01

申请号：US14366046

申请日：2012-11-27

Applicant: NITTO DENKO CORPORATION

Inventor： Masatsugu Higashi ,  Akiko Tanaka ,  Aimi Matsuura ,  Tetsuo Inoue

IPC: C09J133/08 ,  C09J7/02

CPC classification number: C09J133/08 ,  C09J7/385 ,  C09J139/04 ,  C09J2203/318 ,  C09J2433/00 ,  Y10T428/2887

Abstract: The pressure-sensitive adhesive of the invention contains a (meth)acryl-based polymer obtained by polymerization of a monomer component containing 40 to 99.5% by weight of an alkyl (meth)acrylate having a branched alkyl group of 6 to 9 carbon atoms at an ester end and more than 0 to 40% by weight of a cyclic nitrogen-containing monomer having a six or more-membered cyclic nitrogen-containing structure. The pressure-sensitive adhesive of the invention can form a pressure-sensitive adhesive layer having a satisfactory level of adhesion performance and optical properties, a low dielectric constant, and moisture resistance reliability.

Abstract translation: 本发明的压敏粘合剂含有（甲基）丙烯酸系聚合物，其通过将含有40〜99.5重量％的碳原子数为6〜9的支链烷基的（甲基）丙烯酸烷基酯的单体成分聚合而得到， 酯末端和大于0至40重量％的具有6个或更多元环状含氮结构的环状含氮单体。 本发明的压敏粘合剂可以形成具有令人满意的粘附性能和光学性能，低介电常数和耐湿可靠性的粘合剂层。

公开(公告)号：US20130280438A1

公开(公告)日：2013-10-24

申请号：US13926549

申请日：2013-06-25

Applicant: Nitto Denko Corporation

Inventor： Yasuko Iwakawa ,  Shuusaku Nakano ,  Tetsuo Inoue ,  Shouichi Matsuda

IPC: G02B5/30

CPC classification number: G02B5/3033 ,  G02F1/133528

Abstract: A method for producing a polarizing film includes a step (1) of preparing a lyotropic liquid crystalline solution having electric conductivity of not more than 50 μS/cm (expressed in terms of 0.05% by weight) and containing a dichroic dye and a solvent, a step (2) of preparing a base material having at least one surface subjected to a hydrophilization treatment, and a step (3) of coating the solution prepared in the step (1) on the hydrophilized surface of the base material prepared in the step (2) at a coating rate of not less than 100 mm/second, and drying the solution. The polarizing film produced in the method has a dichroic ratio of 25 or more at a wavelength of 600 nm.

Abstract translation: 偏光膜的制造方法具有制造电导率为50μS/ cm以下（以0.05重量％表示）并含有二色性染料和溶剂的溶致液晶溶液的工序（1） 制备具有至少一个经过亲水化处理的表面的基材的工序（2）和将工序（1）中制备的溶液涂布在步骤（1）中制备的基材的亲水化表面上的步骤（3） （2），涂布速度不小于100mm /秒，并干燥该溶液。 该方法中产生的偏振膜在波长600nm处的二色性比为25以上。