Pressure-sensitive adhesive composition having an improved release behavior
AssigneeTesa SE
InventorsStephan Jauer, Marten Papenbroock
Life of this patent
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Abstract
Adhesive tape comprising at least one layer of an acrylate-based pressure-sensitive adhesive and a liner having a catalyzed addition crosslinking silicone coating, the silicone coating being in direct contact with the pressure-sensitive adhesive and the pressure-sensitive adhesive comprising additives that are effective as catalyst poisons.
Claims9
An adhesive tape comprising at least one layer of an acrylate-based pressure-sensitive adhesive, and a liner furnished with a catalyzed, hydrosilylation addition-crosslinking silicone coating, the silicone coating being in direct contact with the layer of acrylate-based pressure-sensitive adhesive, wherein the acrylate-based pressure-sensitive adhesive contains additives selected from the group consisting of didodecyl 3,3′-thiopropionate, 2-ethylhexyl thioglyconate, and pentaerythritol tetra(3-mercaptopropionate), which act as catalyst poisons for the hydrosilylation addition crosslinking catalyst of the silicone.
A method for regulating the removal forces with which a liner furnished with a catalyzed hydrosilylation addition crosslinked silicone coating can be removed from an acrylate-based pressure-sensitive adhesive, which comprises including in said acrylate-based pressure-sensitive adhesive compounds selected from the group consisting of didodecyl 3,3′-thiopropionate, 2-ethylhexyl thioglyconate, and pentaerythritol tetra(3-mercaptopropionate) which act as catalyst poisons for the hydrosilylation addition-crosslinking catalyst in said hydrosilylation catalyzed addition crosslinked silicone coating.
A method for regulating the removal forces with which a catalyzed hydrosilylation addition crosslinked silicone coated liner can be removed from an acrylate-based pressure-sensitive adhesive located on said liner, which comprises including in said acrylate-based pressure-sensitive adhesive compounds selected from the group consisting of didodecyl 3,3′-thiopropionate, 2-ethylhexyl thioglyconate, and pentaerythritol tetra(3-mercaptopropionate) which act as catalyst poisons for platinum-containing hydrosilylation catalysts.
Dependencies are inferred from the claim text.