Method for producing coatings, adhesive layers or sealing systems for primed or unprimed substrates
First Claim
1. A process for producing coatings, adhesive films or seals for primed or unprimed substrates, which comprises (1) applying at least one free-radically and/or ionically curable coating material and/or adhesive and/or sealing compound comprising at least one constituent (A) containing on average per molecule at least one group (a) containing at least one bond which can be activated with actinic radiation, in the form of (1.1) a water-free and solvent-free liquid or melt, (1.2) a powder, (1.3) a dispersion or a solution in at least one organic solvent, or (1.4) a dispersion or a solution in an aqueous medium to and/or into the primed or unprimed substrate, (2) drying the resultant layer of a dispersion or a solution (1.3) or (1.4) or causing the resultant layer of the melt (1.1) to solidify or maintaining it in a melted state by heating, (3) melting, by heating, the resultant solid layer (1.2), (1.3) or (1.4), and (4) curing the liquid layer resulting from step (1) of the process or the melted layer resulting from step (2) or (3)of the process (4.1) in the liquid or melted state, (4.2) during solidification, and/or (4.3) after solidification with near infrared (NIR) radiation.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention relates to a method for producing coatings, adhesive layers or sealing systems for primed or unprimed substrates. The inventive method comprises the following steps: applying to and/or introducing into the substrate (1) coating substances, adhesive substances and/or sealing compounds that contain a component (A) which comprises in the statistical average at least one group (a) with at least one bond per molecule that can be activated by actinic radiation in the form of (1.1) a water-free and solvent-free liquid or melt, (1.2) a powder, (1.3) a dispersion or a solution in at least one organic solvent, or (1.4) in an aqueous medium, (2) drying the layer from a dispersion or solution (1.3) or (1.4) or allowing the resulting layer of the melt (1.1) to solidify or maintaining it in the molten state by heating, (3) melting the solid layer (1.2), (1.3) or (1.4) by heating, and (4) curing the liquid layer resulting from process step (1) or the molten layer resulting from process step (2) or (3) in the molten state, during solidification and/or after solidification with radiation in the near infrared range.
-
Citations
28 Claims
-
1. A process for producing coatings, adhesive films or seals for primed or unprimed substrates, which comprises
(1) applying at least one free-radically and/or ionically curable coating material and/or adhesive and/or sealing compound comprising at least one constituent (A) containing on average per molecule at least one group (a) containing at least one bond which can be activated with actinic radiation, in the form of (1.1) a water-free and solvent-free liquid or melt, (1.2) a powder, (1.3) a dispersion or a solution in at least one organic solvent, or (1.4) a dispersion or a solution in an aqueous medium to and/or into the primed or unprimed substrate, (2) drying the resultant layer of a dispersion or a solution (1.3) or (1.4) or causing the resultant layer of the melt (1.1) to solidify or maintaining it in a melted state by heating, (3) melting, by heating, the resultant solid layer (1.2), (1.3) or (1.4), and (4) curing the liquid layer resulting from step (1) of the process or the melted layer resulting from step (2) or (3)of the process (4.1) in the liquid or melted state, (4.2) during solidification, and/or (4.3) after solidification with near infrared (NIR) radiation.
- 13. The process as claimed in claim 13, wherein the parent structure of the constituent (A) is of low molecular mass, oligomeric and/or polymeric.
Specification