一种制备安全层压板的方法，包括以下步骤：a）提供聚对苯二甲酸乙二醇酯基材（1）; b）在纵向或横向上拉伸聚对苯二甲酸乙二醇酯基材; c）在拉伸的聚对苯二甲酸乙二醇酯基材上涂覆和干燥第一涂料组合物（2） d）在步骤b）中未选择的纵向或横向上拉伸涂覆的聚对苯二甲酸乙二醇酯基材，以获得具有干厚度在50nm和400nm之间的具有第一涂层组合物的层的涂覆的双轴拉伸聚对苯二甲酸乙二醇酯基材; e）在第二涂料组合物（3）上涂覆并干燥在双轴拉伸基材上的干层顶部，其中第一涂料组合物含有选自羟基官能的部分水解的氯乙烯/乙烯基 乙酸酯共聚物和聚酯 - 氨基甲酸酯共聚物; 并且其中所述第二涂料组合物含有羟基官能的部分水解的氯乙烯/乙酸乙烯酯共聚物。 还披露了包含它们的安全层压板和安全文件。

a) providing a polyethylene terephthalate substrate (1); b) stretching in either the polyethylene terephthalate substrate in the longitudinal or transverse direction; c) a first coating composition (2) was coated on stretched polyethylene terephthalate substrate dried on; d) the coated polyethylene terephthalate substrate was stretched in the longitudinal or transverse direction was not selected in step b), coated with a layer of a first coating composition having a dry thickness of 50nm~400nm the biaxially oriented polyethylene terephthalate substrate obtained; includes the step of drying e) coating the second coating composition (3) on the biaxially stretched dry layer on the substrate, wherein the first coating composition , hydroxyl - functional groups of the partially hydrolyzed vinyl chloride / vinyl acetate copolymers and polyester - containing copolymer selected from the group consisting of urethane copolymer; and wherein the second coating composition, hydroxyl - functional groups method for producing a security laminate containing a sex partially hydrolyzed vinyl chloride / vinyl acetate copolymers. Security laminates and security documents containing them are also disclosed.
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