Patent ID: 8858861
Filing Date: 2014-10-14
Classification: B29C,B29L

Abstract:
1. A method for forming an overmolded container by covering a hollow inner bottle made of resin with an injection of a molten resin which forms an outer, the method comprising: setting the inner bottle in a mold with a space therebetween for forming the outer; and circulating a pressurized gas into and out of a hollow space of the inner bottle through an upper opening thereof while the molten resin is injected to the mold; wherein the pressurized gas is supplied through a first path which opens toward an inner wall of the inner bottle, and the pressurized gas is discharged out of the inner bottle through a second path, the second path being open in the inner bottle at a place away from the opening of the first path, wherein the pressurized gas supplied into and discharged out of the inner bottle is adjusted in pressure while the molten resin is being injected to the mold, and wherein the inner bottle is formed to have a corner portion, and the pressurized gas supplied into the inner bottle is blown through the opening of the first path, which opening is opposite to the corner portion.