Aqueous coating material that can be hardened physically,...

Details Aqueous coating material that can be hardened physically,... Aqueous coating material that can be hardened physically,...

C - Chemistry, Metallurgy

09

D

C09D 175/04 (2006.01) C09D 5/29 (2006.01) C09D 7/12 (2006.01)

Patent

CA 2398782

The invention concerns an aqueous coating material that can be hardened physically, thermally or thermally and with actinic radiation, containing: A) at least one ionically and/or non- ionically stabilized polyurethane that is saturated, unsaturated and/or grafted with olefinically unsaturated compounds as binding agent; B) at least one coloring and/or effect-giving pigment and C) at least one colorless powder that is substantially inert, transparent or opaque in relation to the other components of the coating material and that has a mean particle size ranging from 1.0 to 10.0 µm, whose particles have a density ranging from 0.8 to 3.6 gcm-3. The invention also relates to the utilization of the aqueous coating material for the production of monolayer and multilayer coloring and/or effect-giving enamels for primed and unprimed substrates.

La présente invention concerne une substance de revêtement aqueuse, pouvant durcir par voie physique, thermique ou thermique et avec rayonnement actinique. Cette substance comprend : A) au moins un polyuréthanne stabilisé, saturé, insaturé et/ou greffé avec des composés oléfiniquement insaturés, ionique et/ou non ionique, en tant que liant, B) au moins un pigment colorant et/ou à effet et C) au moins une poudre incolore, sensiblement inerte par rapport au reste des composants de la substance de revêtement, transparente ou opaque, ayant une dimension particulaire moyenne qui va de 1,0 à 10,0 mu m et dont les particules présentent une épaisseur qui va de 0,8 à 3,6 gcm<-3>. La présente invention concerne également l'utilisation de la substance de revêtement aqueuse pour la production de peintures monocouches et multicouches, colorantes et/ou à effet, sur des substrats apprêtés et non apprêtés.

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