Pressure-sensitive adhesive mass and the use thereof
AssigneeTesa SE
InventorsThorsten Krawinkel, Kerstin Franck, Bernd Luhmann
Life of this patent
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Abstract
The invention relates to a pressure-sensitive adhesive mass for adhesive tapes that can be released by stretching them in the plane of adhesion. The adhesive mass comprises a) a block copolymer of the styrene block copolymer type, b) adhesive resins, and c) antioxidants. The inventive mass is further characterized by a content in d) a sterically hindered mono- or polynuclear phenol that contains a benzylthioether group in the ortho and/or para position to the phenol OH group, and/or e) a sterically hindered phenol that carries a phenyl acrylate group in the ortho and/or the para position to the phenolic OH group, and/or f) a sterically hindered lactone.
Claims11
A pressure sensitive adhesive for adhesive sheet strips redetachable by extensive stretching in the bond plane, comprising
- a) block copolymer
- b) tackifier resins, and
- c) antioxidant
- characterized by the presence therein of
- d) sterically hindered monocyclic and/or polycyclic phenol containing a benzyl thioether group positioned ortho and/or para to the phenolic OH group, and/or
- e) sterically hindered phenol which carries an acrylic acid phenyl ester group positioned ortho and/or para to the phenolic OH group, and/or
- f) sterically hindered lactone.
Dependencies are inferred from the claim text.