| 摘要 |
<p>The present invention relates to a primer, comprising a mixture dissolved or dispersed in one or more solvents, the mixture composed of a copolymer obtained through copolymerization, preferably free-radical copolymerization, of vinylcaprolactam and/or vinylpyrrolidone, and of one or more of the following monomers: a) acrylic acid ester of a linear primary alcohol containing 2 to 10 carbon atoms in the alkyl group of the alcohol, b) acrylic acid ester of a branched, non-cyclic alcohol having 4 to 12 carbon atoms in the alkyl group of the alcohol, and c) acrylic acid, one or more organofunctional silanes, a dye or a pigment based on a metal complex or a spinel-type metal oxide. Such a primer provides reliable and excellent adhesion between pressure-sensitive adhesive tapes and hydrophilic surfaces, in particular, glass, and at the same time ensures a good coloration of the primer, thereby producing an opaque primer layer.</p> |
