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AssigneeWKP Wurttembergische Kunststoffplatten-Werke GmbH & Co. KG
InventorsReiner Mehnert, Hans-Jürgen Gläsel, Eberhard Hartmann, Heinz Haller, Bernd Schwarz
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The invention relates to a stratified material with a coating which is deposited on one side or both sides and which is comprised of a planar substrate containing acrylate. The synthetic resin is modified by means of high-temperature resistant, polymerizable nanoparticles having a glass transition temperature of the homopolymerizates ≧150 ° C. Said nanoparticles comprise a core consisting of silicon dioxide and of at least one side chain which is covalently bound to the core via one or several oxygen atoms of the oxide, and which is of the formula (MeO)x(Me—(CH2)n—(OCO)m—CR1═CH2)y, wherein Me represents Si or Al, x is 1 to 3, m is 0 and 1, n is 0 to 6, y is 1 to 3 and R represents H or CH3, whereby the free valences of Me represent a binding to another oxygen atom of the core or are saturated by alkoxy radicals.
A laminate material comprising
A laminate material comprising a planar substrate having a coating which is applied on one or both sides and which comprises a synthetic resin which can be polymerised by radiation characterised in that the synthetic resin is solvent-free and is so modified by means of nano-scale silica and silane that a polymerised surface coating is scratch-resistant at a scratch loading of up to at least 3.5 Newtons, as measured in accordance with DIN 53799 (version of January 1986, section 4.15).
A laminate material comprising a planar substrate having a coating which is applied on one or both sides and which comprises a synthetic resin which can be polymerised by radiation characterised in that the synthetic resin is solvent-free and is so modified by means of nano-scale silica and silane that a polymerised surface coating is scratch-resistant at a scratch loading of up to at least 4.5 Newtons as measured in accordance with DIN 53799 (version of January 1986, section 4.15).
Dependencies are inferred from the claim text.