Acrylic pressure-sensitive adhesive and also adhesive tape furnished with acrylic pressure-sensitive adhesive
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United States of America Patent
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Issued Date -
Mar 7, 2024
app pub date -
Sep 5, 2023
filing date -
Sep 7, 2022
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Abstract
An acrylic pressure-sensitive adhesive was to be provided that finds use especially in a reversible adhesive tape that is redetachable without leaving any residue, the adhesive tape having a particularly flat paper backing with high air permeability, and thus gives rise to particularly precise and flat paint edges when applied. This is achieved by an acrylic pressure-sensitive adhesive based on polymers having the following monomer composition:
- (a) 97% to 99% by weight of monomers from the group comprising 2-ethylhexyl acrylate or 2-octyl acrylate or n-heptyl acrylate or mixtures of at least two of said monomers,(b) 1% to 3% by weight of (meth)acrylic acidand further comprising a crosslinking system, wherein the ratio of the reactive crosslinking groups and the carboxy groups of (meth)acrylic acid (b) is less than or equal to 7% and wherein the polymers are produced by emulsion polymerization.
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