Flexible laminates bonded with water-based laminating ink vehicles and laminating adhesives
申请人:AIR PRODUCTS AND CHEMICALS, INC.
公开号:EP0841157A2
公开(公告)日:1998-05-13
This invention relates to improved flexible laminates formed from at least one corona treated polyolefin or polyester film bonded to another polymeric or cellulosic film via an aqueous based laminating adhesive. The improvement in the flexible laminates resides in the aqueous based laminating adhesive used to bond the respective films. The aqueous based laminating adhesive is comprised of an acrylic interpolymer prepared by emulsion polymerizing alkyl (meth)acrylates, α-β unsaturated olefins, such as styrene and suitably substituted styrenes, and/or α-β unsaturated nitriles, such as acrylonitrile with a glycidyl (meth)acrylate and having the pendent epoxy group converted to the hydroxy amine. The preferred pendant units are hydroxy propylamine groups.
本发明涉及由至少一种经过电晕处理的聚烯烃或聚酯薄膜通过水基复合粘合剂与另一种聚合物或纤维素薄膜粘合而成的改进型柔性层压板。柔性层压板的改进在于用于粘合各薄膜的水性层压粘合剂。水基层压粘合剂由丙烯酸(甲基)丙烯酸烷基酯、α-β 不饱和烯烃(如苯乙烯和适当取代的苯乙烯)和/或α-β 不饱和腈类(如丙烯腈)与(甲基)丙烯酸缩水甘油酯乳液聚合制备的丙烯酸互聚物组成,并将悬垂环氧基团转化为羟基胺。首选的悬垂单元是羟基丙胺基团。