Acrylic pressure-sensitive adhesive composition, acrylic pressure-sensitive adhesive layer, base film with pressure-sensitive adhesive layer, laminate, and image display device

摘要

wherein R is a hydrogen atom or a hydrocarbon residue having 1 to 18 carbon atoms which may have an oxygen atom, or a salt thereof, the composition containing 0.005 to 3 parts by weight of the phosphonic acid compound of formula (1) based on 100 parts by weight of the (meth)acryl-based polymer; a pressure-sensitive adhesive layer made from the acrylic pressure-sensitive adhesive composition; a pressure-sensitive adhesive layer-attached substrate film having the pressure-sensitive adhesive layer; a laminate including the pressure-sensitive adhesive layer-attached substrate film and a transparent conductive layer-bearing substrate bonded together in such a manner that the pressure-sensitive adhesive layer is in contact with the transparent conductive layer; and an image display device including the laminate or the pressure-sensitive adhesive layer-attached substrate film.