US 11,969,755 B2
Method for applying embossed structures to coating media while pre-treating the embossing tool used therefor
Jan-Bernd Kues, Münster (DE); Susanne Piontek, Münster (DE); Joerg Exner, Münster (DE); Birgit Kleine-Bley, Münster (DE); Alberto Garcia Martin, Münster (DE); Jens-Henning Noatschk, Münster (DE); Michael Lorenz, Leipzig (DE); Robert Von Der Aa, Borsdorf (DE); Frank Bergmann, Halle (DE); and Wilfried Schipper, Sandesneben (DE)
Assigned to BASF COATINGS GMBH, Muenster (DE)
Appl. No. 17/615,986
Filed by BASF Coatings GmbH, Münster (DE)
PCT Filed Jun. 3, 2020, PCT No. PCT/EP2020/065316
§ 371(c)(1), (2) Date Dec. 2, 2021,
PCT Pub. No. WO2020/245172, PCT Pub. Date Dec. 10, 2020.
Claims priority of application No. 10 2019 003 847.9 (DE), filed on Jun. 3, 2019.
Prior Publication US 2022/0314272 A1, Oct. 6, 2022
Int. Cl. B05D 3/12 (2006.01); B05D 1/02 (2006.01); C09D 133/04 (2006.01)
CPC B05D 3/12 (2013.01) [B05D 1/02 (2013.01); C09D 133/04 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for transferring an embossed structure using an embossing tool, which comprises at least the steps
(1-i) applying a coating composition to at least a part of a surface of a substrate, to give a composite, and
(2-i) at least partially embossing the coating composition, applied at least partially to the surface of the substrate, by means of at least one embossing tool comprising at least one embossing die,
or
(1-ii) applying a coating composition to at least a part of an at least partially embossed surface of an embossing die of an embossing tool and
(2-ii) applying a substrate to at least a part of the surface of the coating composition, applied to the embossing die, to give a composite on the embossing die,
which comprises pretreating the at least one embossing die of the embossing tool, before the implementation of step (2-i) and before the implementation of step (1-ii), with at least one organic solvent and/or at least one reactive diluent, and, through step (2-i) and step (1-ii), transferring microstructures having a structure depth >30 μm as embossed structure onto the coating composition;
wherein a solids content of the coating composition is ≥90 wt %, based on a total weight of the coating composition.