Nitto-denko Corporation

Nissho Corporation

Yoshikazu Soeda

Junji Yokoyama

Hiroshi Yamamoto

Makoto Kojima

Hiroshi Wada

Katsuya Kume

Masahiko Ando

Yasuyuki Tokunaga

Hiroaki Mashiko

Takeshi Yamanaka

Mitsuo Kuramoto

Naoki Matsuoka

Kenta Jozuka

Waka Hikosaka

Naoki Nakayama

Shin-ichi Kouno

Tsuyoshi Inoue

Yutaka Tosaki

Naoaki Higuchi

Naoyuki Nishiyama

Yasushi Buzojima

Koichi Ikeda

Hironori Tamai

Kazuyuki Yagura

Akiko Miyano

Yoshimasa Nishida

Hiroki Nakahara

Hinonori Tamai

Provided is a PSA sheet that provides highly reliable adhesion and great stretch removability from adherends. This invention provides a PSA sheet. The PSA sheet exhibits a shear adhesive strength of 0.5 MPa or greater, a tensile strength at break of 10 MPa or greater, and an elongation at break of 300% or greater.

Pressure-sensitive adhesive sheet for portable electronics

This invention provides a PSA sheet that allows prevention or reduction of damage such as fracture with efficient stretch removability. A stretchable PSA sheet is provided, comprising a PSA layer and a film-like substrate supporting the PSA layer. The PSA sheet has a long section. The long section has a tapered segment that extends, tapering to a first end of the length direction and the film-like substrate has a minimum cross-sectional area larger than 0.30 mmin the tapered segment.

Stretchable pressure-sensitive adhesive sheet

The present invention relates to a pressure-sensitive adhesive tape or sheet having a light-reflective property and/or a light-shielding property, which includes a base material and at least one pressure-sensitive adhesive layer disposed on at least one surface of the base material. The pressure-sensitive adhesive layer is formed by an acrylic pressure-sensitive adhesive composition containing an acrylic polymer (a) and a low-molecular weight polymer component (b) which contains, as a principal monomer component, an ethylenic unsaturated monomer having a glass transition temperature of from 60 to 190&#xb0; C. when it is formed into a homopolymer and having a cyclic structure within the molecule thereof, and which has a weight-average molecular weight equal to or higher than 3,000 but lower than 20,000. The pressure-sensitive adhesive layer has a gel fraction of from 51 to 75 wt % and a temperature, at a maximum of loss tangent (tan &#x3b4;), of from &#x2212;14 to 25&#xb0; C.

Pressure-sensitive adhesive tape or sheet having light-reflective property and/or light-shielding property, and liquid crystal display apparatus

The double-sided pressure-sensitive adhesive tape or sheet is a double-sided pressure-sensitive adhesive tape or sheet containing a support having a pressure-sensitive adhesive layer on the both surfaces thereof, characterized in that the double-sided pressure-sensitive adhesive tape or sheet has a total thickness including the thickness of the support and the two pressure-sensitive adhesive layers formed on the both surfaces of the support of 0.003 mm or more and less than 0.03 mm and a breaking strength of from 2 to 26 MPa/10 mm-width. The support preferably has a thickness of from 0.002 to 0.012 mm. As the support, plastic films (especially, a polyethylene terephthalate film) are suitable. The double-sided pressure-sensitive adhesive tape or sheet may have a length of 5 m or more and have a roll-wound form.

Double-sided pressure-sensitive adhesive tape or sheet and process of producing the same

A pressure-sensitive adhesive tape contains a substrate and a pressure-sensitive adhesive layer disposed on at least one side of the substrate, wherein the substrate contains colored layers containing a silver layer, a layer of a color other than silver and black, and a black layer which are superposed in this order.

Pressure-sensitive adhesive tape

A pressure-sensitive adhesive tape contains a substrate and a pressure-sensitive adhesive layer disposed on at least one side of the substrate, wherein the substrate contains colored layers containing a white layer, a layer of a color other than white and black, and a black layer which are superposed in this order.

Printable pressure-sensitive adhesive sheet and sealing material containing same

A pressure-sensitive adhesive composition, wherein the storage elastic modulus &lsqb;G&prime;&rsqb; at room temperature is at least 2&times;10,dyne/cm,and the adhesive strength at room temperature is 1 kg/20 mm width or higher. Preferably, a pressure-sensitive adhesive composition comprising a polymer having a polycarbonate structure having a repeating unit represented by the following formula

Pressure-sensitive adhesive composition and pressure-sensitive adhesive sheets made therefrom, and sealants, reinforcing sheets and pressure-sensitive adhesive sheets for printing produced therefrom

Growing community of inventors

Ibaraki, Japan

Yoshikazu Soeda