Nitto-denko Corporation

Kansai Paint Company, Ltd.

Nissho Corporation

Shinji Inokuchi

Tetsuya Hirose

Masayuki Hodono

Miho Yamaguchi

Takahiro Nonaka

Kunio Nagasaki

Isao Hirose

Tokuhisa Kosaka

Akihisa Murata

Yasuyuki Tokunaga

Masahiro Ohura

Takeshi Igarashi

Koichi Nakamura

Nahid Mohajeri

Toshitaka Suzuki

Yasunori Sugihara

Kenichi Nishikawa

Naoyuki Nishiyama

Yuki Saitou

Hiroko Ikenaga

Yoshikuni Hirano

Yu-chu Chen

Takayuki Shimada

Akiko Nonaka

Kujtim Bizati

Koji Yamaguchi

Hiroshi Wada

Masahiko Hirose

Masahiko Ando

Hiroyuki Higuchi

Shigeki Muta

Kazuhisa Maeda

Masahiro Oura

Junji Yokoyama

Kazuhiko Kinpara

Masatoshi Suzuki

Naoaki Higuchi

Yusuke Sugino

Ryuuichi Kabutoya

Masaya Nishigawara

Takuma Ogawa

Namiko Suzuki

Hiroyuki Tsubaki

Naoto Kato

Yoshihiko Asano

Eiji Yamanaka

Masatoshi Mamiya

A gas sensing element includes a gas detection layer including a pigment, the gas detection layer including a first surface; and a backing material disposed on the first surface of the gas detection layer. When reducing gas causes the gas sensing element to change in color, a color change &#x394;L* of the gas sensing element is greater than or equal to 5.

Gas sensing element

A gas sensing element includes a gas detection layer including a chemochromic pigment, with modifications towards enhancing shelf-life performance and false detection performance before use. The gas detection layer has an adhesion of greater than or equal to 0.2 N/25 mm. Also described are methods of making the aforedescribed element to attain enhanced shelf-life performance and false detection performance.

Gas sensing element and methods of making the same

The present invention provides a sealing sheet containing a flame retardant adhesive sheet having a flame retardant-containing adhesive layer, wherein the flame retardant-containing adhesive layer has a void content of 5-40%.

Sealing sheet

A PSA sheet is provided, having an adhesive face formed of an acrylic PSA layer comprising an acrylic polymer. The PSA sheet has a peel strength of 5 N/10 mm or greater. The peel strength is measured as such that the adhesive face is directly adhered to an ethylene-propylene-diene rubber surface and after 20 minutes, peeled in the 180&#xb0; direction at a tensile speed of 50 mm/min.

Pressure-sensitive adhesive sheet and use thereof

A pressure-sensitive adhesive composition is provided for forming an acrylic pressure-sensitive adhesive that constitutes an adhesive face. The pressure-sensitive adhesive composition comprises an amino group-containing (meth)acrylate as its monomeric component. The amino group-containing (meth)acrylate accounts for 5% by mass or more of all monomeric components of the pressure-sensitive adhesive composition.

Pressure-sensitive adhesive composition

A paint film-protecting sheet () that effectively prevents adhesive transfer to the paint film is provided. The paint film-protecting sheet () includes a pressure-sensitive adhesive (PSA) layer (), which is comprised of a non-crosslinking PSA, disposed on a polyolefin-based resin film serving as a supporting substrate (). At least a surface portion () of the supporting substrate which adjoins the PSA layer is formed of a resin material that satisfies both of the following conditions: (1) it contains W wt % of a LLDPE having a density d of 0.925 g/cmor less, wherein W is greater than or equal to 20; and (2) it has a LLDPE content index &#x3b1; of 400 or more, the LLDPE content index &#x3b1; being defined as (0.935&#x2212;d)&#xd7;W&#xd7;1000.

Paint film-protecting sheet

A paint film-protecting sheet () is provided which effectively prevents adhesive transfer to the paint film. The paint film-protecting sheet () has a pressure-sensitive adhesive layer which is comprised of a non-crosslinking pressure-sensitive adhesive () adjacent a polyolefin-based resin film serving as a supporting substrate (). At least a surface portion () of the supporting substrate that adjoins the pressure-sensitive adhesive layer satisfies the following conditions: (1) it has an indentation modulus at 25&#xb0; C. (Er) of from 200 MPa to 1,100 MPa and (2) it has an indentation modulus at &#x2212;5&#xb0; C. (Er) of from 400 MPa to 2,400 MPa.

A joined body includes: an adherend; a primer layer provided on the adherend; and a pressure-sensitive adhesive layer provided on the primer layer. The primer layer contains, as an effective component, at least one of chlorinated polypropylene and chlorinated polyethylene and an amount of the effective component per unit area is 0.5 [mg/cm] or less. The surface of the adherend may be formed of at least one of polypropylene (PP), polyvinyl chloride (PVC), and ethylene-propylene-diene rubber (EPDM).

Joined body and method of producing joined body

The present invention relates to an acrylic pressure-sensitive adhesive including: a) an acrylic polymer containing, as a monomer unit, an alkyl (meth)acrylate including an alkyl group having 1 to 20 carbon atoms in an amount of 50% by weight or more; and b) a tackifier resin, in which the acrylic polymer a) contains two kinds of monomer units having a difference in solubility parameter (SP value) of 0.2 (MPa)or more, each in an amount of 15% by weight or more.

Acrylic pressure-sensitive adhesive, acrylic pressure-sensitive adhesive layer and acrylic pressure-sensitive adhesive tape or sheet

Provided is double-faced adhesive tape joining apparatus that allows accurate joining of a double-faced adhesive tape on a tape joining surface of a workpiece in a curved or bent shape with no damage on a surface of a separator joined to the double-faced adhesive tape and no floating of the separator. Specifically, a hand-operable base includes a tape guide for guiding the double-faced adhesive tape successively supplied, and a joining head for pressing against the joining surface of the workpiece the double-faced adhesive tape supplied to a front end of the base. The base and the joining head are configured as to rotate relatively about a support axis toward a longitudinal tape direction.

Double-faced adhesive tape joining apparatus

The present invention provides an adhesive unit for emblem, which includes: a plurality of double-faced adhesive pieces each having a shape corresponding to a shape of a respective one of a plurality of emblem pieces; a first release film attached to a face of each of the plurality of double-faced adhesive pieces to be adhered to an emblem, so that a mutual positional relationship of the plurality of double-faced adhesive pieces is maintained; and a second release film attached to the other face of each of the plurality of double-faced adhesive pieces opposite to the face to be adhered to the emblem. The present invention also provides a method of producing the adhesive unit for emblem, a jig for adhering emblem, and an emblem for adhesion.

Adhesive unit for emblem, method of producing the same, jig for adhering emblem and emblem for adhesion

A pressure-sensitive adhesive tape roll includes a bobbin and, helically wound therearound, a double-sided pressure-sensitive adhesive tape. The tape includes a double-sided pressure-sensitive adhesive body including a pressure-sensitive adhesive layer containing bubbles and/or hollow microspheres, and arranged on both sides thereof, a release liner A wider than the adhesive body, and an olefinic release liner B. In portions occupying 70% or more of the total length of the tape, a crosswise extending-off portion of the release liner A of an (n)th-turn portion of the adhesive tape vertically overlaps the adhesive body of an adjacent (n+1)th-turn portion of the adhesive tape to form an overlapping portion; the width of the overlapping portion is one half or more of the width of the adhesive body; and the adhesive body of the (n)th-turn adhesive tape is not present below the adhesive body of the adjacent (n+1)th-turn adhesive tape.

Pressure-sensitive adhesive tape roll

Disclosed is a release liner having a multilayer structure of at least three layers including two surface layers and an intermediate layer, in which one of the two surface layers contains a high-density polyethylene, the other contains a low-density polyethylene, and the intermediate layer contains a low-density polyethylene alone as its resin component. Also disclosed is a pressure-sensitive adhesive sheet including the release liner and at least one pressure-sensitive adhesive layer, in which a release force X (N/mm) between the release liner and the pressure-sensitive adhesive layer and a rigidity Y of the release liner [(Young's modulus of the release liner)&#xd7;(thickness)] (N&#xb7;mm) satisfy the following conditions: 0&#x3c;X&#x2266;0.285 and 0&#x3c;Y&#x3c;180X+0.1. The release liner and pressure-sensitive adhesive sheet excel in releasability and do not suffer from liner pop-off even when, for example, stored in a curved state. The release liner excels also in recyclability.

Release liner and pressure-sensitive adhesive sheet

The present invention relates to a pressure-sensitive adhesive sheet including: a laminated structure in which a light-shielding layer, a white or silver layer, and a colored layer are laminated in this order; and at least one pressure-sensitive adhesive layer as at least one surface layer, in which at least one surface of the pressure-sensitive adhesive sheet has L* of 30 or more and C* of 3 or more, L* representing a luminosity and C* representing a chromaticness, and in which the pressure-sensitive adhesive sheet as a whole has a transmittance of a light having a wavelength of 550 nm of 0.3% or less. The pressure-sensitive adhesive sheet of the invention is excellent in light-shielding property irrespective of the thinness thereof as well as in decorativity due to the surface thereof that is colored with a bright color.

Pressure-sensitive adhesive sheet

A single-layered acrylic pressure-sensitive adhesive tape having a pressure-sensitive adhesive layer formed of an acrylic pressure-sensitive composition. The acrylic pressure-sensitive adhesive composition contains an acrylic polymer (A) and a (meth)acrylic polymer (B) having glass transition temperature (Tg) such that Tg&#x2266;45&#xb0; C. and a mass average molecular weight (Mw) is such that 1500&#x2266;Mw&#x2266;4000.

Acrylic pressure-sensitive adhesive composition and acrylic pressure-sensitive adhesive tape

Growing community of inventors

Ibaraki, Japan

Shinji Inokuchi