Nitto-denko Corporation

Takashi Kondou

Shuuji Yano

Akihiro Nishida

Hiroe Maeda

Takezou Hatanaka

Takuya Matsunaga

Mitsuyoshi Shirai

Masayuki Okamoto

Masahito Niwa

Takayuki Shigematsu

Kazuhisa Maeda

Masanori Uesugi

Provided is an adhesive method of pressure-sensitive adhesive sheet for vehicle coatings, giving a pressure-sensitive adhesive sheet highly adhesive even to a coating surface easily causing the low adhesion by bleed-out of leveling agent or the like. The adhesive method of pressure-sensitive adhesive sheet for vehicle coatings according to the present invention is characterized in that the difference (absolute value) between the solubility parameter (SP value) of a pressure-sensitive adhesive layer (X) formed on the side of the pressure-sensitive adhesive sheet in contact with the vehicle coating and the solubility parameter (SP value) of the surface control agent contained in the vehicle coating is 0.6 (cal/cm)or less.

Adhesive method of pressure-sensitive adhesive sheet for vehicle coatings

A polarizing plate of the present invention comprising a polarizer and a protective film provided on at least one surface thereof with an adhesive layer, wherein the protective film comprises (A) a thermoplastic resin having a substituted and/or non-substituted imide group in a side chain and (B) a thermoplastic resin having a substituted and/or non-substituted phenyl group, and nitrile group in a side chain, and the adhesive layer comprises a polyurethane adhesive containing a urethane polyol and an isocyanate crosslinking agent. The polarizing plate exhibits good resistance moisture.

Polarizing plate, adhesive for polarizing plate, optical film and image display device

A light-diffusing sheet includes a transparent film and a light-diffusing layer formed on at least one side of the transparent film. The transparent film contains a thermoplastic resin having a substituted and/or non-substituted imido group in a side chain, and a thermoplastic resin having a substituted and/or non-substituted phenyl group and nitrile group in a side chain, and the surface with the minute unevenness has an average height-depth spacing (Sm): Sm&#x2266;80 &#x3bc;m, a center-line average surface roughness (Ra): Ra&#x2266;0.25 &#x3bc;m and a ten-point average surface roughness (Rz): Rz&#x2266;9Ra.

Light-diffusing sheet, optical element and image display

A light-diffusing sheet includes a transparent film and a light-diffusing layer formed on at least one side of the transparent film. The light-diffusing layer is composed of a resin coating layer having a rough surface. The transparent film contains a thermoplastic resin having a substituted and/or unsubstituted imide group at a side chain and a thermoplastic resin having a substituted and/or unsubstituted phenyl group and a nitrile group at a side chain.

Light-diffusing sheet, optical element and image viewing display

A light diffusing sheet of a structure in which a light diffusing layer is formed on at least one surface of a transparent film, the light diffusing layer including a resin coat layer having a minute unevenness shape and a low refractive index layer having a refractive index lower than that of the resin coat layer on the surface having a minute unevenness shape thereof, whereby the sheet can retain antiglare property, shows almost no white blurring to be recognized due to surface scattering, exhibits almost no birefringence, and is excellent in adherence and durability even when applied to a high definition LCD.

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Ibaraki, Japan

Takashi Kondou