C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 220/28 (2006.01) C08F 8/32 (2006.01) C08F 220/12 (2006.01) C08F 265/04 (2006.01) C08L 33/14 (2006.01) C09D 133/14 (2006.01)
Patent
CA 2203103
The invention concerns a two-stage method for the preparation of aqueous, self- crosslinking copolymer dispersions made from acrylate copolymers having acetoacetyl and carboxylic groups, the copolymers being neutralized with polyamines which act as crosslinking agents. The invention also concerns the use of such copolymers in paints as binders which crosslink at room temperature or at elevated temperatures.
L'invention concerne un procédé de préparation en deux étapes de dispersions de copolymères autoréticulants préparés à partir de copolymères acryliques qui présentent des groupes acétoacétyle et des groupes carboxyliques et qui sont neutralisés par des polyamines agissant comme agents de réticulation. L'invention concerne également l'utilisation de ces copolymères comme liants pour des peintures, capables de réticuler à température ambiante ou plus élevée.
Awad Rami-Raimund
Gossak Kurt
Gsoll Hannelore
Hirschmann Bernhard
Kriessmann Ingo
Fetherstonhaugh & Co.
Solutia Austria Gmbh
Vianova Resins Aktiengesellschaft
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