Nitto-denko Corporation

Funai Electric Company Ltd.

Arakawa Chemical Industries, Ltd.

Yoshio Nakagawa

Makoto Kai

Hiroichi Ukei

Eiichi Imoto

Takahiro Fukuoka

Shigeki Ishiguro

Kenichi Nishikawa

Kooki Ooyama

Osamu Degawa

Masayoshi Natsume

Kouichi Hashimoto

Shinichi Takada

Tatsuya Kubozono

Yasunori Yamamoto

Shuzo Fujiwara

Teiji Sakashita

Yoshihide Kawaguchi

Shouji Yamamoto

Koji Akazawa

Kazuhiko Kinpara

Katsumi Hori

Kouji Akazawa

Takio Itou

Masanori Uesugi

Masato Shirai

Hiroshi Nagami

Hidenori Suzuki

Chihiro Yoshida

Akihiro Yamazaki

Toru Higashimoto

Shota Tanaka

Hajime Yanagida

Yuki Hashimoto

Keita Kume

Yuka Oosawa

A surface-protective PSA sheet capable of reducing adherend damage and well maintaining appearance, etc is provided. The surface-protective PSA sheet capable of reducing adherend damage and well maintaining appearance, etc., comprises a surface layer, a resin substrate layer and a PSA layer, and has a multilayer structure with the resin substrate layer placed between the surface layer and the PSA layer, wherein the surface layer is a layer obtainable by curing a heat-curable composition comprising the following components:

Pressure-sensitive adhesive sheet for surface protection

[Problem] To provide an adhesive sheet having a surface sliding property and stainproof property. [Means for solving] An adhesive sheet is one that comprises at least a substrate and an adhesive layer, a static friction coefficient of the substrate is 0.05 or more and 1.50 or less, and an absolute value of a &#x394;L* value of the substrate is 0.01 or more and 45.00 or less. A load at a time of 5% elongation of the substrate is preferably 1 N/cm or more and 15 N/cm or less. And a stress relaxation rate of the substrate by elongating to 10%, stopping the elongation at that state and after lapsing 600 seconds is preferably 40% or more and 100% or less.

Adhesive sheet

[Problem] This is to provide an adhesive sheet having curved surface followability and chemical resistance. [Means for solving] The adhesive sheet is an adhesive sheet having at least a substrate and an adhesive layer, a load at the time of 5% elongation of the substrate is 15 N/cm or less, a stress relaxation rate of the substrate by elongating to 10%, stopping the elongation at that state and after lapsing 600 seconds is 40% or more and 100% or less, and a chemical weight increased ratio of the substrate is 60% or less.

A release liner formed of a polypropylene resin sheet that can be highly recyclable and that can provide an excellent performance in a wide range of operating temperature is provided. A release-lined pressure-sensitive adhesive (PSA) sheet constituted with the release liner is also provided. A release-lined PSA sheetaccording to the present invention comprises a PSA sheethaving a supportand a PSA layer; and a release linerplaced on the PSA layer. The release linerhas a layered configuration formed of a layer Aformed of a polypropylene resin composition containing a nucleating agent; and a layer Bformed of a polypropylene resin composition containing no nucleating agent; wherein the two layers stacked to form the thickness of the liner.

Pressure-sensitive adhesive sheet with release liner

A release liner formed of a highly recyclable polypropylene-based resin sheet and capable of assuring excellent operability over a wide range of environmental temperature is provided. A pressure-sensitive adhesive (PSA) sheet with release liner is also provided. A PSA sheet with release liner according to the present invention comprises a PSA sheet including a support and a PSA layer; and a release liner formed of a polypropylene-based resin sheet which is obtained by molding into a sheet a polypropylene-based resin composition containing a nucleating agent. The PSA sheet with release liner provides excellent operability even in a high temperature environment of, for example, about 35&#xb0; C. The PSA sheet with release liner is preferably applicable in an attachment operation wherein the PSA sheet is attached to an adherend while the liner is released from the PSA sheet.

Provided is a release-lined pressure-sensitive adhesive sheet comprising a release linerand a pressure-sensitive adhesive sheet. The release linerhas an average linear expansion coefficient of at most 7&#xd7;10/&#xb0; C. between 25&#xb0; C. and 40&#xb0; C. A layerto constitute a surfaceA on the pressure-sensitive adhesive layer side of the release lineris formed of a polyolefin-based resin composition containing none or at most 0.01 mass % of a phosphorous-based antioxidant. The surfaceA is divided into a plurality of sectionsby a plurality of ridgesA andB with each ridge having a height of 5 &#x3bc;m to 50 &#x3bc;m. At least one of the sectionsinscribes a circle of a diameter greater than 500 &#x3bc;m.

A combination apparatus incorporating a hard disk drive and an optical disc drive (audio-visual recording and reproducing apparatus) stores one or more keywords inputted as a result of user operation in a memory and monitors whether or not a closed caption signal contains any of the keywords. When the closed caption signal contains at least one of the keywords, output of images and audio corresponding to this closed caption signal and subsequent images and audio is stopped. A blue background may be outputted during stopping of outputting. The stopping of outputting may be released after a predetermined period elapses. When at least one of the keywords is contained in a closed caption signal during recording, images corresponding to the closed caption signal are subjected to mosaic processing and are recorded.

Audio visual recording and reproducing apparatus

An optical disk apparatus for recording information on an optical disk or for reproducing information recorded on an optical disk, wherein previews corresponding to respective titles or chapters of information recorded on an optical disk are displayed and reproduced on a display device. The apparatus includes: a system controller which compares a target title or chapter with a comparison reference title or chapter during reproduction of a preview corresponding to the target title or chapter, and skips common scenes and reproduces subsequent information when the target title or chapter and the comparison reference title or chapter have common scenes.

Optical disk apparatus

A curable re-release adhesive which, when subjected to a curing reaction caused by irradiation with radiation, shows a sufficient drop of adhesion and causes the adherend to be warped to a minimized extent as developed by the shrinkage force caused by the curing reaction. The re-release adhesive contains a radiation-reactive polymer including a main chain and a plurality of intramolecular side chains, each such side chain having a terminal carbon-carbon double bond, a chain length of 6 or more in terms of number of atoms, and the same or a different number of atoms as each other side chain in the polymer. The release adhesive shows a shrinkage force of 30 MPa or less as developed by a curing reaction upon irradiation. A re-release adhesive sheet is also disclosed, including a substrate film and an adhesive layer containing the re-release adhesive, provided on one surface thereof.

Re-release adhesive and re-release adhesive sheet

The base material for pressure-sensitive adhesive tape or sheet is constituted of a polyolefin based resin as the major component and is obtained by rolling by means of a calender having a measure capable of individually changing the rotational speed of each calender roll. Examples of the measure capable of individually changing the rotational speed of each calender roll include a measure provided with motors capable of individually driving their respective calender rolls and a measure provided with speed regulators capable of individually regulating their respective calender rolls. It may be employed that the number of calender rolls is four and that the roll arrangement is in the reverse L shape. It is preferable that the base material for pressure-sensitive adhesive tape or sheet contains an inorganic compound together with the polyolefin based resin.

Base material for pressure-sensitive adhesive tape or sheet, pressure-sensitive tape or sheet using the base material, and process of producing the base material

Adhesive tape and substrate for adhesive tape

Base film for pressure-sensitive adhesive tape and pressure-sensitive adhesive tape or sheet

Ultraviolet curing pressure-sensitive adhesive sheet

Growing community of inventors

Ibaraki, Japan

Yoshio Nakagawa