Adhesive tape

Patent metadata

Field	Value
Publication number	US-2016244643-A1
Application number	US-201615052401-A
Country	US
Kind code	A1
Filing date	Feb 24, 2016
Priority date	Feb 25, 2015
Publication date	Aug 25, 2016
Grant date	—

Abstract

The adhesive tape includes: a resin layer that is formed by applying resin coating, the resin coating containing a resin having an acid number of 50 mg/g or more and 130 mg/g or less, and at least one type of cross-linking agent selected from between an epoxy-based cross-linking agent and a metal chelate cross-linking agent; and an adhesive layer that is laminated on or above the resin layer, and is formed by applying adhesive coating, the adhesive coating containing a resin including a hydroxyl group, and a metal chelate compound.

First claim

What is claimed is:

1 . An adhesive tape comprising:
a resin layer that is formed by applying resin coating, the resin coating containing a resin having an acid number of 50 mg/g or more and 130 mg/g or less, and at least one type of cross-linking agent selected from between an epoxy-based cross-linking agent and a metal chelate cross-linking agent; and an adhesive layer that is laminated on or above the resin layer, and is formed by applying adhesive coating, the adhesive coating containing a resin including a hydroxyl group, and a metal chelate compound.

2 . The adhesive tape according to claim 1 , wherein
the resin having the acid number, contained in the resin layer, is at least one type selected from among an acrylic resin, a polyester resin, and an urethane resin.

3 . The adhesive tape according to claim 1 , wherein
the resin including the hydroxyl group, contained in the adhesive layer, is at least one type selected from between an acrylic resin and an urethane resin.

4 . The adhesive tape according to claim 1 , wherein
thickness of the resin layer is 10 μm or less, and thickness of the adhesive layer is 15 μm or less.

5 . The adhesive tape according to claim 1 , wherein
the resin layer and the adhesive layer are formed by laminating, by a wet-on-wet method, the resin coating and the adhesive coating on a releasable substrate.

6 . The adhesive tape according to claim 1 , wherein
the adhesive layer is attachable to a back side of a cover member of a transparent panel used for a front surface of a display apparatus where an image is displayable.

Assignees

• Hitachi Maxell

Inventors

• Shibuya Masanao
• Kato Yusuke
• Shimoda Takayuki
• Hashimoto Katsumi
• Sakai Takahiro

Classifications

• Y10T428/24959

  of adhesive layers · CPC title

• C08K5/0025

  Crosslinking or vulcanising agents; including accelerators · CPC title

• B32B7/12

  using interposed adhesives or interposed materials with bonding properties · CPC title

• Y10T428/2486

  with outer strippable or release layer · CPC title

• C08L33/00

  Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers · CPC title