B - Operations – Transporting – 05 – D
Patent
B - Operations, Transporting
05
D
B05D 1/36 (2006.01) B05D 1/38 (2006.01) B05D 5/06 (2006.01) B05D 7/14 (2006.01)
Patent
CA 2507726
The present invention relates to a process for producing a multi-coat system on various substrates, particularly automotive bodies. A crosslinkable component of the composition includes an acid functional acrylic copolymer polymerized from a monomer mixture comprising 2 percent to 12 percent of one or more carboxylic acid group containing monomers, percentages based on total weight of the acid functional acrylic copolymer, and 0.2 percent to 2 percent of amorphous silica, percentages based on total weight of the crosslinkable component. The crosslinking component can includes polyisocyanates, melamines, or a combination thereof.
La présente invention concerne un procédé permettant de produire un système multicouche sur divers substrats, plus particulièrement, sur des carrosseries d'automobiles. Un composant réticulable contenu dans la composition comprend un copolymère acrylique fonctionnel acide polymérisé à partir d'un mélange monomère comprenant de 2 à 12 % d'un ou de plusieurs monomères contenant un groupe acide carboxylique, les pourcentages étant fondés sur le poids total du copolymère acrylique fonctionnel, et de 0,2 à 2 % de silice amorphe, les pourcentages étant fondés sur le poids total du composant réticulable. Le composé de réticulation peut comprendre des polyisocyanates, des mélamines, ou une combinaison de ceux-ci.
Ma Sheau-Hwa
Matthews James F.
Tronco Henry A. Jr.
Bennett Jones Llp
E.i. Du Pont de Nemours And Company
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