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Method for producing films having a coating the films obtained in this way and their use for producing molded parts in particular for use in automobile construction
Method for producing films having a coating the films obtained in this way and their use for producing molded parts in particular for use in automobile construction
A process for producing sheets, in which a free-radically crosslinkable coating composition (K) which after crosslinking to completion gives a transparent coating (KE) is applied to a backing sheet (T), a coating (KT), dried but not yet crosslinked to completion, is produced from the coating composition (K), on (KT) a pigmented coating (PB) is produced and optionally on (PB) a tiecoat is applied, the crosslinkable coating composition (K) comprising a free-radically crosslinkable component (KK) based on urethane acrylate and containing carbamate and/or biuret and/or allophanate and/or urea and/or amide groups, (KK) having a number-average molecular weight of from 1000 to 50 000 g/mol, having a double bond content of from 1.0 to 5.0 mol of double bonds per 1000 g of reactive component (KK), containing on average per molecule 1 branching point, containing 5%-50% by weight, based in each case on the weight of component (KK), of cyclic structural elements, and containing at least one aliphatic structural element having at least 6 carbon atoms in the chain.
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机译:在片材的制造方法中,将在交联完成后得到透明涂层(KE)的可自由基交联的涂料组合物(K)应用于背衬片(T),涂层(KT),干燥但尚未由涂料组合物(K)交联至完成,在(KT)上产生有色涂料(PB),并任选在(PB)上施加粘结层,该可交联涂料组合物(K)包含可自由基交联的基于氨基甲酸酯丙烯酸酯并含有氨基甲酸酯和/或缩二脲和/或脲基甲酸酯和/或脲和/或酰胺基团的组分(KK),其数均分子量为1000-50 000 g / mol,具有每1000克反应性组分(KK)的双键含量为1.0至5.0 mol双键,每个分子平均含> 1个支化点,按重量计分别含5%-50%(重量)环状结构元素的组分(KK),且至少包含一个在链中具有至少6个碳原子的非离子结构单元。
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