Nitto-denko Corporation

Otsuka Chemical Co., Ltd.

Nippon Paint Automotive Coatings Co., Ltd

Shinsuke Akizuki

Yuusuke Toyama

Atsushi Yasui

Takaaki Ishii

Takeharu Kitagawa

Yusuke Toyama

Yuki Kida

Satoru Masumoto

Yasunori Miwa

Yuki Inoue

Provided are a separator-attached adhesive layer structure which comprises a separator having moderate light peelability with respect to an adhesive layer and exhibits excellent processability and durability, and a production method therefor. The production method comprises: a first step of forming a layer of an adhesive composition containing a (meth)acryl-based polymer, a peroxide and a phenolic antioxidant, on a release treatment surface of a separator subjected to a release treatment; and a second step of, after completion of the first step, heating the adhesive composition to cause cross-linking therein so as to be formed as an adhesive layer.

Separator-attached adhesive layer structure and production method therefor, separator-attached adhesive layer and polarizing film combination structure and production method therefor, and image display device

Provided are an acrylic pressure-sensitive adhesive composition including a (meth)acryl-based polymer and a phosphonic acid compound of formula (1): 

Acrylic pressure-sensitive adhesive composition, acrylic pressure-sensitive adhesive layer, pressure-sensitive adhesive layer-attached substrate film, laminate, and image display device

There is provided a thin polarizing plate with a pressure-sensitive adhesive layer hardly warping. A polarizing plate with a pressure-sensitive adhesive layer of the present invention includes: first pressure-sensitive adhesive layer, a protective film, and a polarizing film in the stated order, wherein: the polarizing film has a thickness of 13 &#x3bc;m or less; a thickness ratio between the protective film and the polarizing film (thickness of the protective film/thickness of the polarizing film) is from 1.5 to 9.0; and a creep amount when a load of 500 g is applied to the first pressure-sensitive adhesive layer for 1 hour is from 20 &#x3bc;m/h to 300 &#x3bc;m/h.

Polarizing plate with pressure-sensitive adhesive layer

A pressure-sensitive adhesive layer for optical applications of the present invention is made from a pressure-sensitive adhesive for optical applications including a base polymer (A), and the pressure-sensitive adhesive layer for optical applications includes iodine and/or iodide ions (B). The pressure-sensitive adhesive layer for optical applications has an antistatic function and can satisfy a durability.

Pressure-sensitive adhesive layer for optical applications, pressure-sensitive adhesive layer-attached optical film, and image display device

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Ibaraki, Japan

Shinsuke Akizuki