Dic Corporation

Osaka City University

Koujirou Tanaka

Akinori Morino

Akikazu Matsumoto

Eriko Sato

Kouichi Yokota

Rainer Bruno Frings

Artur Lachowicz

Kai-Uwe Gaudl

Toshihiro Ooki

Rainer B Frings

An easily dismantlable adhesive composition containing: an acrylic block polymer having a poly(meth)acrylate chain (A) formed of a carboxyl precursor group-containing (meth)acrylate monomer (a) and a poly(meth)acrylate chain (B) that contains, as monomer components, a (meth)acrylate (b) having an alkyl group having 1 to 14 carbon atoms and a polar group-containing monomer (c); and either an acid catalyst or an acid generator, makes it possible to achieve favorable adhesiveness and dismantlability and suppress stick-slip at the time of dismantlement.

Easily dismantlable adhesive composition and easily dismantlable adhesive tape

Suitable adhesive properties and dismantling properties can be obtained, and an interface between an adherent/an adhesive layer or an adhesive layer/a substrate can be suitably dismantlable by the easily dismantlable adhesive composition including an acrylate polymer including a (meth)acrylate monomer having a carboxyl precursor group, 2-ethyl hexyl acrylate, and a monomer having a polar group as a monomer, and an acid catalyst or an acid generator.

Easily dismantlable adhesive agent composition and easily dismantlable adhesive tape

An easily dismantlable adhesive composition is provided containing: an acrylic polymer; and either an acid catalyst or an acid generator, the acrylic polymer containing: as monomer components, a carboxyl-precursor-group-containing-(meth)acrylate monomer; an n-butyl acrylate; and a polar-group-containing monomer, the content of the polar-group-containing monomer being 5 to 30% by mass, relative to the total mass of the monomer components composing the acrylic polymer, makes it possible to realize favorable adhesion- and dismantling properties and favorable delamination at an interface between an adherend and a substrate or an interface between an adhesive agent layer and an adherend when dismantled.

The present invention provides a cation-polymerizable resin composition comprising (A) a multi-branched polyether polyol obtained from a ring-opening reaction of (a1) a hydroxyalkyloxetane and (a2) an epoxy compound having one epoxy group, (B) an alicyclic epoxy compound having at least two alicyclic epoxy groups, and (C) an acid generator, which may be used in various uses including, for example, an adhesive agent or tackiness agent for optical elements, various kinds of coating agents and the like.

Cation-polymerizable resin composition containing multi-branched polyether polyol, adhesive agent comprising the composition, and laminate and polarizing plate using the adhesive agent

An ultraviolet curable resin composition, which comprises a cationic photopolymerization initiator (B) and a urethane prepolymer (A) having a structure represented by the general formula (); (wherein Rand Reach independently represent an alkylene group, R, Rand Reach independently represent an alkyl group or hydrogen atom, Rand Reach independently represent an alkylene group having 2 to 4 carbon atoms, a represents 0 or 1, and b and c each independently represent an integer of 0 to 10).

Growing community of inventors

Osaka, Japan

Koujirou Tanaka