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Abstract

There is provided adhesive tapes for mounting flexographic printing plates having a foam substrate and two adhesive layers on either side of the foam substrate, where the adhesive layers may include a polymer component obtainable by free-radical polymerization: a) 50 wt % or greater linear or branched acrylic esters having 2 or more carbon atoms in the alkyl radical, b) 22.5 wt % to 46.5 wt % linear, cyclic or branched acrylic esters having 1 to 20 carbon atoms in the alkyl radical, and c) greater than 3.5 wt % to 27.5 wt % of highly polar vinyl substituted monomers, where the polymer component has a glass transition temperature value of between −22° C. and −7° C. according to the Fox method and based on measurement of the homopolymers of the monomers in (a), (b), and (c) by modulated DSC, and further wherein the polymer component has a solubility parameter between 9.58 (cal/cm²)^1/2 and 9.99 (cal/cm²)^1/2 according to the Fedors method. In a preferred embodiment, the linear or branched acrylic esters in (a) are selected from at least one of isooctyl acrylate, 2-ethylhexyl acrylate, n-butyl acrylate, ethyl acrylate, and combinations thereof; wherein the linear or branched acrylic esters in (b) is isobornyl acrylate; and wherein the highly polar vinyl-substituted monomers in (c) is acrylic acid.

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First Claim