Patent ID: 6521158
Filing Date: 2003-02-18
Classification: B05C,B29C,B29L,B65D,Y10T

Abstract:
A method for manufacturing a plastic container, which comprises the steps of:preparing a mold, which has a first cavity for forming a large-diameter-formed member and a second cavity for forming a small-diameter-formed member, said second cavity has an outside diameter, which is smaller than an inside diameter of said first cavity; forming a tubular body of a plastic laminate film; putting said tubular body on an outer surface of a mandrel serving as a core for said mold; placing said mandrel on which said tubular body has been put, in said mold so that an end of said tubular body locates inside said first cavity and another end thereof locates outside said second cavity; and injecting synthetic resin material in a molten state into said first and second cavities of said mold by an insert-injection process so as to form a large-diameter-formed member integrally with an outer surface of the end of said tubular body and form a small-diameter-formed member integrally with an inner surface of the other end of said tubular body.