| 摘要 |
Pressure-sensitive adhesive mass comprising an at least partially cross-linked polyacrylate, based on a monomer mixture comprising a) an acrylic acid ester of the formula CR32=C(R2)(COOR1), b) an acrylic acid of the formula CR52=C(R4)(COOH), c) olefinically unsaturated monomers having at least one functional group, and d) 0 to 95 wt % of acrylic acid ester of the formula CR82=C(R7)(COOR6), and 20 to 60 parts by weight of at least one tackifying resin. |
| 主权项 |
1. A pressure sensitive adhesive comprising:
an at least partly crosslinked polyacrylate based on a monomer mixture, the monomer mixture comprising a) 5 to 100 wt % of acrylic esters of the formula CR32═C(R2)(COOR1) as monomers A, where R1 is a branched alkyl group having 16 to 22 C atoms which has at least two branching sites, R2 is selected from the group consisting of H, methyl and halogen, and R3 independently at each occurrence is H or halogen, b) 0 to 20 wt % of acrylic acid of the formula CR52═C(R4)(COOH) as monomers B, where R4 is selected from the group consisting of H, methyl and halogen, and R5 independently at each occurrence is from H or halogen, c) 0 to 30 wt % of olefinically unsaturated monomers having at least one functional group as monomers C, where the monomers C do not fall within the monomers A, B, and D, and d) 0 to 95 wt % of acrylic esters of the formula CR82═C(R7)(COOR6) as monomers D, where R6 is a linear, singly branched, cyclic or polycyclic alkyl group having 1 to 14 C atoms, R7 is selected from the group consisting of H, methyl and halogen, and R8 independently at each occurrence is H or halogen; at least one tackifying resin, which is present in a proportion of 20 to 60 parts by weight per 100 parts by weight of polyacrylate. |
