Method for transferring an embossed structure to the surface of a coating

A method for producing a coating (B2), embossed at least partially on one of its surfaces, in the form of a free film, using a composite (B2B1F1) comprising:

• a substrate (F1),
• an at least partially embossed and at least partially cured coating (B1), and
• an at least partially cured coating (B2) applied to (B1),
• where the coating (B1) is producible by at least partially curing a coating composition (B1a), applied to at least a part of a surface of the substrate (F1) and at least partially embossed, by radiation curing, where the coating composition (B1a) is a radiation-curable coating composition,
• wherein the coating composition (B1a) comprises:
• at least one component (a) in an amount in a range from 40 to 95 wt %,
• at least one additive as component (b) in an amount in a range from 0.01 to 5 wt %,
• at least one photoinitiator as component (c) in an amount in a range from 0.01 to 15 wt %, and
• at least one component (d), comprising at least one carbon double bond, in an amount in a range from 0 to 45 wt %,
• where (i) the components (a), (b), (c), and (d) are each different from one another, (ii) the stated amounts of the components (a), (b), (c), and (d) are each based on a total weight of the coating composition (B1a), and (iii) the amounts of all components present in the coating composition (B1a) add up to 100 wt %,
• and where component (a) comprises at least three structural units, each different from one another or at least partially identical, of formula (I)
• wherein radicals R1 in each case independently of one another are a C2-C8 alkylene group, radicals R2 in each case independently of one another are H or methyl, and m each independently of one another are an integral parameter in a range from 1 to 15, but with proviso that m is at least 2 in at least one of the structural units of the formula (I) within the component (a).

A method for producing a composite (B2KF2) comprising a substrate (F2), at least one adhesive (K), and the coating (B2), using a composite (B2B1F1) comprising:

• a substrate (F1),
• an at least partially embossed and at least partially cured coating (B1), and
• an at least partially cured coating (B2) applied to (B1),
• where the coating (B1) is producible by at least partially curing a coating composition (B1a), applied to at least a part of a surface of the substrate (F1) and at least partially embossed, by radiation curing, where the coating composition (B1a) is a radiation-curable coating composition,
• wherein the coating composition (B1a) comprises:
• at least one component (a) in an amount in a range from 40 to 95 wt %,
• at least one additive as component (b) in an amount in a range from 0.01 to 5 wt %,
• at least one photoinitiator as component (c) in an amount in a range from 0.01 to 15 wt %, and
• at least one component (d), comprising at least one carbon double bond, in an amount in a range from 0 to 45 wt %,
• where (i) the components (a), (b), (c), and (d) are each different from one another, (ii) the stated amounts of the components (a), (b), (c) and (d) are each based on a total weight of the coating composition (B1a), and (iii) the amounts of all components present in the coating composition (B1a) add up to 100 wt %,
• and where component (a) comprises at least three structural units, each different f rom one another or at least partially identical, of formula (I)
• wherein radicals R1 in each case independently of one another are a C2-C8 alkylene group, radicals R2 in each case independently of one another are H or methyl, and m each independently of one another are an integral parameter in a range from 1 to 15, but with proviso that m is at least 2 in at least one of the structural units of the formula (I) within the component (a).