Idemitsu Unitech Co., Ltd.

Other

Kuraray Co., Ltd.

Tomoyuki Kitajima

Takumi Todaka

Ryo Katada

Takuto Ogawa

Akira Funaki

Shigeki Yamaguchi

Keito Hishinuma

Kenichi Mori

Yoichiro Kimura

Masahiro Akamatsu

A tape includes, in a cross-sectional shape: a first and a second portion which are configured to be at least partially in opposition. The first portion includes: thick portions provided in corresponding one of a first and a third region, out of the first, a second, and the third region in a width direction of the tape; a first and a second thin portion provided at respective both end portions, in the width direction, of the second region positioned between the first and the third region; and at least one intermediate portion provided between the first and the second thin portion. The second portion includes: thick portions provided in corresponding one of the first and the third region and extending beyond end portions, in the width direction, of the second region; and at least one third thin portion provided in the second region and opposed to the intermediate portion.

Tape, zipper tape, and container with tape and method for manufacture therefor

The surface protective film of the present invention is characterized in that the film comprises a polyolefin-based substrate layer and a pressure-sensitive adhesive layer, the pressure-sensitive adhesive layer contains at least a styrene-based elastomer, an acrylic-based pressure-sensitive adhesive and a tackifier, and in the pressure-sensitive adhesive layer, the styrene-based elastomer is blended in an amount of not less than 50% by mass but not more than 90% by mass based on the total amount of the pressure-sensitive adhesive layer, the acrylic-based pressure-sensitive adhesive is blended in an amount of not less than 1% by mass but not more than 40% by mass based on the total amount of the pressure-sensitive adhesive layer, and the tackifier is blended in an amount of not less than 1% by mass but not more than 49% by mass based on the total amount of the pressure-sensitive adhesive layer.

Surface-protecting film

A surface protective film includes: a polyolefin base material layer; and an adhesion layer, in which the adhesion layer includes: a vinyl-polyisoprene-block-containing styrene elastomer; a polyolefin; and a tackifier, and a hardness (Martens hardness) of the adhesion layer is 1.0 N/mmor more and 2.5 N/mmor less.

Surface protective film

The present invention relates to a transparent polypropylene based sheet and its manufacturing method capable of: providing proper properties as a transparent sheet such as tensile characteristic, impact resistance, rigidity and little generation of whitening when being folded as well as maintaining transparency; preventing generation of a gum-like material in molding; and realizing continuous production. A manufacturing machineincludes: an extruding unitfor melting and kneading a raw material and extruding the material into a sheet-like shape; a first cooling unitfor cooling the melted sheet-like resin compositionto obtain a sheet (sheet-like article); a preheating unitfor reheating the sheet; a heat treatment unitfor heat-treating the sheet-like resin composition; and a second cooling unitfor cooling the heat-treated sheet. The raw material of a resulting sheetcontains a polypropylene resin (a) and a metallocene-type ethylene-&#x3b1;-olefin copolymer (b).

Method for producing transparent polypropylene based sheet and transparent polypropylene based sheet

A device for displaying a center position of a laser beam in a vertical-degree measuring system comprises a light receiving device constituted by photosensors and a liquid crystal display panel for displaying a light receiving position. The light receiving device and the liquid crystal display panel are integrally fixed with coordinate axes registered on a vertical line. A center portion of a laser beam is subjected to data processing by an arithmetically processing section from a laser beam receiving position of the light receiving device to display a center point on the liquid crystal display panel. Since the center position displayed on the liquid crystal panel is registered with the center position of the laser beam received by the light receiving device, it is possible to directly access to the display position to utilize it as a reference point for a setting-out.

Growing community of inventors

Sodegaura, Japan

Tomoyuki Kitajima