UV-curable composition and the use thereof as a coating
View Patent ↗A UV-curable composition for coating vehicle axles includes at least one aliphatic epoxy acrylate and at least one acrylate selected from the group consisting of aromatic epoxy acrylate and polyester acrylate as a photochemically crosslinkable component; at least one reactive diluent; at least one photoinitiator; and at least one filler and/or at least one pigment.
1. An ultraviolet (UV)-curable composition for coating vehicle axles comprising:
an aromatic epoxy acrylate;
a polyester acrylate;
a reactive diluent comprising tetrahydrofurfuryl acrylate and 2-phenoxyethyl acrylate;
at least one photoinitiator; and
at least one filler and/or at least one pigment.
2. The composition as claimed in claim 1 , wherein the acrylates have at least two ethylenic double bonds per molecule.
3. The composition as claimed in claim 1 , wherein the polyester acrylate is an aliphatic polyester acrylate.
4. The composition as claimed in claim 1 , wherein the polyester acrylate is a polyester diacrylate.
5. The composition as claimed in claim 1 , further comprising an adhesion promoter containing (meth)acrylate moieties as an auxiliary additive.
6. The composition as claimed in claim 1 , which is substantially free of solvents.
7. The composition as claimed in claim 1 , having a viscosity in a range from 100 mPa·s to 2000 mPa·s as determined by a rotary viscometer according to DIN EN ISO 3219.
8. A cured coat produced from a composition as claimed in claim 1 .
9. A substrate comprising the coat as claimed in claim 8 .