The present invention provides a composite molded body in which a rubber layer in the form of a thin film is formed on a surface of a resin molded body and a production method therefor. According to an embodiment of the present invention, a liquid composition containing a rubber component such as a rubber latex and a peroxide is applied to a surface of a resin molded body such as a polyamide-based resin having an amino group, causing crosslinking to occur in an uncrosslinked rubber layer and forming a crosslinked rubber layer in the form of a thin film. When a co-crosslinking agent is used in combination, adhesion to the resin molded body can be improved even when the thickness of the crosslinked rubber layer is small.
本发明提供了一种在
树脂模塑体表面形成薄膜形式橡胶层的复合模塑体及其生产方法。根据本发明的一个实施例,将含有橡胶成分(如橡胶胶乳)和过氧化物的液体组合物涂在
树脂模塑体(如具有
氨基的聚酰胺基
树脂)的表面,使未交联的橡胶层发生交联,形成薄膜形式的交联橡胶层。结合使用共
交联剂时,即使交联橡胶层的厚度较小,也能提高与
树脂模塑体的粘附性。