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    • 9. 发明申请
    • PET-C BASED SECURITY LAMINATES AND DOCUMENTS
    • 基于PET-C的安全层压板和文件
    • WO2011124485A1
    • 2011-10-13
    • PCT/EP2011/054677
    • 2011-03-28
    • AGFA-GEVAERTGEUENS, IngridWAUMANS, BartDRIEGHE, Vera
    • GEUENS, IngridWAUMANS, BartDRIEGHE, Vera
    • B29C55/02B32B27/36B42D15/10
    • B42D25/45B29C55/026B29C55/14B32B27/08B32B37/144B32B2037/243B32B2038/0028B32B2255/10B32B2255/26B32B2309/02B32B2309/105B32B2367/00B32B2425/00B42D25/00B42D25/21B42D25/23B42D25/24B42D25/305B42D25/47B42D2033/30B42D2033/46
    • A method of preparing a security laminate including the steps of: a) providing a polyethylene terephthalate substrate (1); b) stretching the polyethylene terephthalate substrate in either a longitudinal or a transversal direction; c) coating and drying a first coating composition (2) on the stretched polyethylene terephthalate substrate; d) stretching the coated polyethylene terephthalate substrate in the longitudinal or transversal direction not selected in step b) in order to obtain a coated biaxially stretched polyethylene terephthalate substrate having a layer of the first coating composition with a dry thickness between 50 nm and 400 nm; e) coating and drying a second coating composition (3) on top of the dry layer on the biaxially stretched substrate, wherein the first coating composition contains a copolymer selected from the group consisting of a hydroxyl - functional, partially-hydrolyzed vinyl chloride/vinyl acetate copolymer and a polyester-urethane copolymer; and wherein the second coating composition contains a hydroxyl - functional, partially-hydrolyzed vinyl chloride/vinyl acetate copolymer. Security laminates and security documents containing them are also disclosed.
    • 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的方向拉伸涂覆的聚对苯二甲酸乙二醇酯基材,以获得具有干厚度为50nm至400nm的第一涂料组合物层的涂布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)上涂覆和干燥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。