IMPROVEMENT OF SURFACE PROPERTIES OF RADIATION-CURED COATINGS

The invention relates to a method of improving the surface properties of a radiation cured coating, comprising adding to a radiation-curable coating composition 0.1 to 10.0% by weight, based on the total weight of the radiation-curable coating composition, of a polymer (A) having a polysiloxane back...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Eberhardt, Marc, Jaunky, Guillaume
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The invention relates to a method of improving the surface properties of a radiation cured coating, comprising adding to a radiation-curable coating composition 0.1 to 10.0% by weight, based on the total weight of the radiation-curable coating composition, of a polymer (A) having a polysiloxane backbone and at least two methacryloyl groups connected to the polysiloxane backbone via linking groups, wherein the linking groups comprise at least one non-cyclic ether group, and wherein the polysiloxane backbone is connected to the linking groups via a Si-C bond, and wherein polymer (A) is prepared by a process comprising i) Providing a polysiloxane backbone having at least two Si-H groups, ii) Providing a molecule having at least one methacryloyl group, one allyl group, and at least one non-cyclic ether group located between the allyl group and the at least one methacryloyl group, and iii) Forming a covalent bond between the polysiloxane backbone i) and the molecule ii) by reacting the Si-H groups with the allyl group via a hydrosilylation reaction.