The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 04, 2013
Filed:
Mar. 24, 2011
Takashi Morioka, Tokyo, JP;
Naokl Taya, Tokyo, JP;
Takashi Morioka, Tokyo, JP;
Naokl Taya, Tokyo, JP;
Lintec Corporation, Tokyo, JP;
Abstract
A pressure-sensitive adhesive sheet includes a base material and a pressure-sensitive adhesive layer and is formed therein with a plurality of through-holes passing through from one surface to the other surface. The base material includes a first layer positioned on a side of the pressure-sensitive adhesive layer and a second layer positioned on an opposite side of the pressure-sensitive adhesive layer. The first layer includes a resin composition containing 50 to 88 wt % of a polyolefin-based resin (A); 10 to 48 wt % of a styrene-based resin and/or an acrylic-based resin (B) excluding the polyolefin-based resin (A); and 2.0 to 30 wt % of a pigment (C), and the second layer contains a polyolefin-based ionomer resin (D) as a main constituent, and the ratio of thickness between the first layer and the second layer is 80:20 to 97:3.0.