Title:
ADHESIVE SHEET
Document Type and Number:
WIPO Patent Application WO/2017/138310
Kind Code:
A1
Abstract:
Provided is an adhesive sheet which is able to be suppressed in changes of the characteristics of a bonding film X due to migration of an additive in the bonding film X to an adhesive tape in the adhesive sheet.
The present invention provides an adhesive sheet in which a bonding film X, an adhesive layer Y and a base film Z are sequentially arranged in the order of X, Y and Z, and which is characterized in that: the bonding film X contains a base resin and 0.05-20% by mass of a first additive (A) that is a functional component selected from among a photopolymerization initiator, a thermal polymerization initiator, a polymerization inhibitor, an antistatic agent, a crosslinking accelerator, an anti-aging agent and a softening agent and has a molecular weight of 500 or less; the adhesive layer Y contains 100 parts by mass of a (meth)acrylate ester copolymer (B), 0.5-10 parts by mass of a polyfunctional isocyanate curing agent (C) and a second additive (D) that is the same functional component as the first additive (A) in the bonding film X and has a molecular weight of 500 or less; and 0.1-20% by mass of the second additive (D) is contained in 100% by mass of the adhesive layer Y.
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Inventors:
KUTSUMI MASANOBU (JP)
HAYASHI YASUNORI (JP)
TANAKA SHIGERU (JP)
HAYASHI YASUNORI (JP)
TANAKA SHIGERU (JP)
Application Number:
PCT/JP2017/001419
Publication Date:
August 17, 2017
Filing Date:
January 17, 2017
Export Citation:
Assignee:
DENKA COMPANY LTD (JP)
International Classes:
C09J7/20; C09J11/06; C09J133/04; C09J201/00; H01L21/301; H01L21/683
Foreign References:
| JP2011213922A | 2011-10-27 | |||
| JP2015149398A | 2015-08-20 | |||
| JP2013251402A | 2013-12-12 |
Attorney, Agent or Firm:
SK INTELLECTUAL PROPERTY LAW FIRM et al. (JP)
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