Patent ID: 6929836
Filing Date: 2005-08-16
Classification: B29B,B29C,B29K,B29L,B32B,B65D,Y10T

Abstract:
1. A multi-layered, compression molded preform which is capable of being reshaped to a multi-layered bottle, said preform comprising a mouth portion, a body portion and a bottom portion, wherein at least the body portion and the bottom portion comprise an inner layer, one or more intermediate layers, and an outer layer, said preform having a molecular orientation and shape produced by compression molding a composite molten resin lump ( wherein, at the center of the bottom portion, a half-width of a diffuse scattering peak by an X-ray diffraction of a surface of the outer layer is larger than a half-width of a diffuse scattering peak by an X-ray diffraction of a surface of the inner layer; wherein at least one of said one or more intermediate layers is made of at least one material selected from the group consisting of gas barrier resin, recycled resin and heat-resistant resin; wherein said one or more intermediate layers are completely sealed by the inner layer and the outer layer which are made of polyester; and a gate portion or a trace of the gate portion is not present in the bottom portion.