公开(公告)号：US5989381A

公开(公告)日：1999-11-23

申请号：US96516

申请日：1993-07-23

申请人： Hideyuki Murakami ,  Yusaku Uryu ,  Akira Hori ,  Yasuhiro Matsuo ,  Ryuichi Edasaki

发明人： Hideyuki Murakami ,  Yusaku Uryu ,  Akira Hori ,  Yasuhiro Matsuo ,  Ryuichi Edasaki

IPC分类号： B32B7/12 ,  C08J5/12 ,  B32B31/00

CPC分类号： B32B7/12 ,  B32B38/0036 ,  C08J5/128 ,  B29K2033/04

摘要： An improvement is proposed in the method for adhesively bonding a decorative overlay film of a plastic resin to the surface of an acrylic resin board with a hot-melt adhesive, by which the overlaid acrylic resin board can be imparted with greatly improved stability of overlaying lamination as well as good machining workability of the board. The improved method comprises the steps of: (a) demoisturizing the acrylic resin board by heating at 60-90.degree. C. for at least 2 hours; (b) forming a layer of a hot-melt adhesive on at least either one of the resin board and the overlay film; (c) laminating the resin board and the overlay film with the adhesive layer therebetween to obtain a laminate by passing between a pair of laminating rollers while the surfaces to be brought into contact with each other are kept at an elevated temperature; and (d) subjecting the laminate to an aging treatment by heating at 30-60.degree. C. for at least 1 hour.

摘要翻译： 在使用热熔粘合剂将塑料树脂的装饰性覆盖膜粘合到丙烯酸树脂板的表面上的方法中提出了一种改进，通过该方法可以赋予重叠的丙烯酸树脂板极大提高覆盖层压的稳定性 以及板的良好的加工可加工性。 改进的方法包括以下步骤：（a）通过在60-90℃下加热至少2小时来对丙烯酸树脂板进行真空去除; （b）在树脂板和覆盖膜中的至少一个上形成热熔粘合剂层; （c）将树脂板和覆盖膜与它们之间的粘合剂层层合，通过使一对层压辊之间通过而使彼此接触的表面保持在升高的温度下获得层压体; 和（d）通过在30-60℃下加热至少1小时对层压板进行时效处理。