Aqueous crosslinking polymer dispersions and their use for...

C - Chemistry – Metallurgy – 08 – G

Patent

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C08G 18/79 (2006.01) C08G 18/08 (2006.01) C08G 18/30 (2006.01) C08G 18/69 (2006.01) C08G 18/70 (2006.01) C08L 47/00 (2006.01) C09J 111/02 (2006.01) C09J 147/00 (2006.01) C09J 175/14 (2006.01)

Patent

CA 2228559

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 aliphatic 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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