Preparation of a Coating, Adhesive, Film or Sheet
AssigneeStahl International B.V.
InventorsMario JIMENEZ MARTINEZ, Freerk BROUWER
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Abstract
The present invention relates to a process for the preparation of a coating, a coated substrate, an adhesive, film or sheet, which process comprises the application of a formulation mixture containing a reactive system onto a substrate. According to the invention a low VOC formulation mixture is used, wherein more than 40% of the carbon in the combined amount of the formulation mixture is modern carbon according to ASTM D6866.
Claims25
A process for the preparation of a coating, coated substrate, adhesive, film or sheet, in which process a formulation mixture having a-content of non volatile organic compounds of at least 80 wt %, comprising:
- (a) applying onto a substrate a reactive system of a polyisocyanate-functional, polyketone-functional, polyepoxide-functional, polyanhydride-functional and/or polycyclic carbonate-functional compound or polymer and a dispersion or fine powder of a compound containing reactive hydrogen, resulting in a substrate coated with the formulation mixture;
- and
- (b) reacting the compounds mentioned above by elevating the temperature, wherein more than 40% of the carbon in the combined amount of the formulation mixture is modern carbon according to ASTM D6866.
A process for the preparation of a coating, coated substrate, adhesive, film or sheet, in which process a formulation mixture comprising:
- (a) applyinq onto a substrate a reactive system of a blocked prepolymer or blocked polymer, in which the isocyanate functional groups have been blocked, and a dispersion or fine powder of a compound containing a reactive hydrogen, resulting in a substrate coated with the coating mixture;
- and
- (b) reacting the compounds mentioned above by elevating the temperature to a temperature high enough to deblock the blocked prepolymer or blocked polymer to liberate the isocyanate groups so that the isocyanate groups can react with the compound containing a reactive hydrogen, wherein more than 40% of the carbon in the combined amount of the polymer mixtures is modern carbon according to ASTM D6866.
Dependencies are inferred from the claim text.