Patent ID: 7942996
Filing Date: 2011-05-17
Classification: B26D,B26F,B29C,B29L,B32B,B65D,Y10T

Abstract:
1. A method of forming a multilayer container in which a container body is formed by means of molding from a multilayer structure including a plurality of laminated resin layers at least one of which is in a fused state, and cutting a predetermined width of a peripheral edge portion of the container body of the multilayer structure so as to form a flange portion, wherein the cutting of the peripheral edge portion of the container body of the multilayer structure comprises the steps of: compressing and deforming said multilayer structure, while extending respective layers of the multilayer structure to provide a thin thickness portion, so that an upper layer bites into a lower layer by pushing a push cutter, by a predetermined amount, into the multilayer structure supported by a cutter receiving portion, while at least one of the resin layers forming the multilayer structure is in a fused state; then cooling and hardening the at least one resin layer in the fused state in the multilayer structure below the melting point thereof; then push-cutting the compressed thin thickness portion till the push cutter abuts against the cutter receiving portion so as to converge an intermediate layer and surface resin layers of the multilayer structure to the abutting portion of the push cutter and the cutter receiving portion.