Decorative panel with improved surface characteristics
AssigneeHoechst Aktiengesellschaft
InventorJohannes C. W. van der Hoeven
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Abstract
The decorative panel having an underlay or core layer and a decorative layer on one or both sides of the core. At least one of the two surfaces of at least the outermost layer of the panel comprises a synthetic resin of one or more radiation-polymerized components selected from unsaturated acrylates and methacrylates. This layer, when scratched, has a scratch resistance of at least 1.5 N and preferably 2 to 7 N (DIN 53 799, part 10). In the method for manufacturing the decorative panel, a liquid surface layer which includes the radiation-polymerizable components is applied onto an underlay and then polymerized by means of radiation. In a further step, the radiation-polymerized surface layer is pressed together with the underlay at an elevated temperature.
Claims14
A decorative panel comprising an underlay, a decorative layer applied to said underlay, and a transparent outermost layer applied to said decorative layer, said outermost layer consisting essentially of the product of radiation-polymerizing a mixture consisting essentially of (i) a radiation-polymerizable, aliphatic urethane acrylate oligomer and (ii) a diacrylate or triacrylate monomer, wherein said outermost layer has a scratch resistance of at least 1.5 Newtons, as measured by DIN 53799, part 10, and displays no loss of sheen or discoloration when measured for weather-resistance in accordance with ASTM G 53-84.
Dependencies are inferred from the claim text.