| 摘要 |
PURPOSE:To obtain a laminated article having a good bonding characteristic by dividing a thermopastic resin to become an outer layer into a major and minor amount of flows, further permitting the minor amount of flow to contact the circumference of a thermal plastic resin to become another core layer to form a composite flow and the major amount of flow to contact the same circumference. CONSTITUTION:Two kinds of thermoplastic resin A and B are changed into the thermally plasticized flow, the flow of the resin A is divided into three flows as a comparable minor amount of flow (a) and a comparable major amount of flow (b) and (c), the flow (a) is press-inserted at a weight proportion 10% and less than 10% of the composite flow formed on the circumference of the wall face in a column shaped or an oval shaped flow path of the resin B to form the desirable composite flow. Subsequently, the remaining flow components (b) and (c) of the resin A are laminated on the both faces of a flat, composite flow thus obtained to be integrally extruded in the form of three layers. |
