ADHESIVE AGENT COMPOSITION AND REMOVABLE ADHESIVE DOUBLE-SIDED TAPE PRODUCED USING SAME

WIPO Patent Application WO/2015/060210

A1

An adhesive agent composition according to the present invention comprises a (vinyl ester)-((meth)acrylic acid alkyl ester) copolymer (A) produced by copolymerizing a (meth)acrylic acid alkyl ester monomer (a1), a (meth)acrylate monomer having a hydroxy group (a2), vinyl acetate (a3) and a maleic acid ester monomer (a4) with one another and an isocyanate cross-linking agent (B) having at least two isocyanate groups, said adhesive agent composition being characterized in that the (vinyl ester)-((meth)acrylic acid alkyl ester) copolymer (A) has an acid value of less than 1 mgKOH/g and a weight average molecular weight of 150,000 to 500,000. According to the present invention, an adhesive agent composition can be provided which can be used suitably for a removable adhesive double-sided tape that has excellent adhesion power and holding power, has a good property of being seeped into a non-woven fabric core material, particularly a non-woven fabric core material having a high weight per device area, and can be removed from an object of interest without staining the object upon the removal of the adhesive double-sided tape from the object.

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LI HUI (JP)
YASUI YOSHIKATSU (JP)
IKEDA NORIHIRO (JP)

PCT/JP2014/077675

April 30, 2015

October 17, 2014

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SHOWA DENKO KK (JP)

C09J133/04; C09J7/21; C09J7/38; C09J131/04

JP2011168658A	2011-09-01
JPH069934A	1994-01-18
JPS62212484A	1987-09-18
US4939220A	1990-07-03
JP2008280439A	2008-11-20

SOGA, Michiharu et al. (JP)
Michiharu Soga (JP)

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