MULTILAYER INJECTION MOLDED FORM,申请号JP19930236468-传众专利搜索

MULTILAYER INJECTION MOLDED FORM

申请公布号：JPH0788889(A)

申请号：JP19930236468

申请日期：1993.09.22

申请公布日期：1995.04.04

申请人：

TOPPAN PRINTING CO LTD

发明人：SEKI TAKEKUNI;NAITO TAKAHIRO;KAWASAKI HIROSHI

分类号：B32B1/04;B29C45/16;B29C49/00;B29C49/06;B29C49/22;B29L9/00;B29L23/00;B32B7/12;B32B27/08;(IPC1-7):B29C45/16

主分类号：B32B1/04

摘要：PURPOSE:To obtain a multilayer injection molded form for a neck of a tube vessel having high gas barrier properties by forming inner and outer surface layers of the same plastic, an intermediate layer of a plastic having gas barrier properties, interposing an adhesive layer between the layers, and forming an end in a cylindrical shape in a large cylindrical or elliptical state and an intermediate part in a tapered shape. CONSTITUTION:Inner and outer surfaces of a multilayer injection molded form 1 are formed of a surface layer 10 and a gas barrier layer 11 made of a gas barrier resin between inner and outer surface layers made of the same plastic, and an adhesive layer 12 made of an adhesive for adhering the surface layer 10 to the gas barrier layer 11 is interposed between the layer 11 and the inner and outer surface layers. The gas barrier layer 11 forms a continuous layer, and completely cover the adhesive layer 12 at molded ends 2, 5 in such a manner that the layer do not reach the end surface. The one end 2 has a cylindrical shape, the other end 5 has a large cylindrical or elliptical shape, and an intermediate part 4 has a tapered shape.