Nitto-Denko Corporation

Nitto Electric Industrial Co., Ltd.

Naoki Matsuoka

Hiroshi Wada

Yutaka Hori

Hiroshi Yamamoto

Makoto Kojima

Katsuya Kume

Masahiko Ando

Yasuyuki Tokunaga

Kenji Sano

Hiroaki Mashiko

Takeshi Yamanaka

Mitsuo Kuramoto

Toshiharu Konishi

Yoshikazu Soeda

Koichi Nakamura

Waka Hikosaka

Shin-ichi Kouno

Hiroshi Matsumoto

Makoto Sunagawa

Yutaka Moroishi

Tsuyoshi Inoue

Makoto Sunakawa

Ichiro Ijichi

Yoshio Miki

Yoshitsugu Hasegawa

Kikuo Takayama

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

The present invention provides a resonance circuit tag that comprises an insulating substrate and a resonance circuit formed on the substrate. Additionally, the resonance circuit contains at least a capacitor and an inductor. Further, a dielectric of the capacitor satisfies at least either being foamable by heating or being capable of changing its thickness by not less than 10% by heating. The resonance circuit of the present invention also provides various advantages in that it can easily cease functioning, it does not inhibit labor-saving and speedy operation at the cash register, it facilitates large-scale production, and it eliminates degradation of the function of the article to which the tag has been attached.

Resonance circuit tag, method for production thereof and method for

A water-soluble or water-dispersible pressure-sensitive adhesive composition comprising a sulfonate-containing copolymer obtained from 20 to 99% by weight of an alkoxyethyl acrylate, 1 to 30% by weight of a styrenesulfonic acid salt, and up to 50% by weight of a monomer mixture of acrylic acid-caprolactone adducts. The composition exhibits excellent pressure-sensitive adhesion while showing satisfactory water solubility or dispersibility even in an acidic aqueous solution.

Water-soluble or water-dispersible pressure-sensitive adhesive tape

A water-soluble double-faced adhesive tape is provided which needs no release paper, permits web splicing without an increase in thickness at the spliced part, and permits spliced webs to run smoothly in a papermaking process, eliminating the possibility of web breaking. The tape includes a water-disintegratable substrate, a first water-soluble adhesive layer formed on one side of the substrate from one edge of the substrate, and a second water-soluble adhesive layer formed on the other side of the substrate from the other edge of the substrate, the two adhesive layers being positioned a distance apart greater than the web thickness plus twice the tape thickness plus an allowance such that they do not overlap in the width direction, with release layers preventing the adhesive layer from sticking to the substrate when the tape is wound up into a roll.

Water-soluble double-faced adhesive tape for splicing

A pressure-sensitive adhesive composition containing as a polymer component an addition-polymerization polymer of an acryl-based polymer having sticking properties at room temperature and one or more ethylenically unsaturated monomers capable of forming a homo- or co-polymer having a glass transition point of at least 273.degree. K.; the addition-polymerization polymer is prepared by polymerizing one or more ethylenically unsaturated monomers in the presence of the acryl-based polymer; the present pressure-sensitive adhesive composition has high adhesive strength and cohesive strength.

Pressure-sensitive adhesive composition

A process for polymerizing acrylic monomers is disclosed. The process involves providing a reactor which is generally in the shape of a screw type reactor having temperature control means thereon. The reactor is continually charged with a supply of acrylic monomers having a viscosity of 10 poises or less at ordinary temperature. The acrylic monomers are continually moved through the reactor by turning of the screw within the reactor in order to cause the acrylic monomers to continually contact renewed surfaces within the reactor. The temperature in the reactor is controlled within two or more zones within the reactor in order to increase the viscosity of the acrylic monomers in the reactor by rapid polymerization within an initial area and then allow polymerization to proceed to one or more additional areas in the reactor to a prescribed rate of conversion. Polymerized product is continuously removed from the reactor.

Process for radical polymerizing acrylic monomers

A heat-activatable, pressure-sensitive adhesive tape or sheet in which the pressure-sensitive, bonding function arises on heating, which comprises a backing material having thereon a layer of a heat-activatable, pressure-sensitve adhesive having an apparent modulus of elasticity of about 10 to 300 kg/cm.sup.2 at normal temperature, the adhesive comprising a mixture of

Heat-activatable, pressure-sensitive adhesive tape or sheet

Growing community of inventors

Osaka, Japan

Naoki Matsuoka