| 摘要 |
The invention relates to aqueous crosslinking polymer dispersions which are characterized in that they consist of A) 98 to 80 wt.% of a 40 to 60% aqueous alkaline polymer dispersion based on 2-chlorobuta-1,3-diene, with a pH of ~9.5 and a chloride content, arising from the elimination of chlorine atoms from the polymer, of ~300 ppm, and B) 2 to 20 wt.% of polyisocyanates obtained by the cyclotrimerization of aliphat ic and/or cycloaliphatic diisocyanates, containing NCO groups bonded predominantly or exclusively as secondary groups, and to their use for the preparation of water-based adhesives.
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