초록 ▼

In a multilayer bottle having at least two layers including an outer layer and an inner layer according to the present invention, the inner layer and the outer layer adjacent thereto are separable from each other at a body of the bottle while the inner layer and the outer layer are adhered to each o

In a multilayer bottle having at least two layers including an outer layer and an inner layer according to the present invention, the inner layer and the outer layer adjacent thereto are separable from each other at a body of the bottle while the inner layer and the outer layer are adhered to each other at least a part thereof in order to prevent the deformation of the bottle due to the reduction of a pressure in the bottle. When the pressure in the bottle reduces due to the volatilization of a content in the bottle or due to the discharge of the content by a pump and the like, the inner layer is separated from the outer layer and is crushed in the form of a bag, so that the outer layer is not deformed at all.

대표청구항 ▼

A method of forming a multilayer bottle having an outer layer and a deformable inner layer, the method comprising: extruding a multilayer parison comprising an outer layer, a deformable inner layer formed inside the outer layer, and at least one strip of adhesive material interposed between the inne

A method of forming a multilayer bottle having an outer layer and a deformable inner layer, the method comprising: extruding a multilayer parison comprising an outer layer, a deformable inner layer formed inside the outer layer, and at least one strip of adhesive material interposed between the inner and outer layers, at least a portion of the inner layer being adhered to the outer layer by the at least one strip of adhesive material; clamping the multilayer parison in a blow mold comprising at least two mold sections, the clamping action cutting the parison to form a parison bottom end and a parison top end; inserting a core bar into the top end of the parison; blowing a gas into the parison through the core bar to perform a blow molding operation and form the multilayer bottle; and releasing the multilayer bottle from the blow mold, the inner layer being separable from the outer layer, during discharge of contents of the multilayer bottle, at portions other than the portion of the inner layer adhered to the outer layer by the adhesive material.