A plastic container includes a hollow body portion including a lower supporting base portion; a sidewall portion extending upwardly from the base portion; and a neck portion extending upwardly from the sidewall portion. The neck portion includes a support flange having an upper and lower surface, at least one thread, and a dispensing opening at the top of the neck portion. In embodiments, a closure may be provided to form an assembly. A preform and method for making a container are also disclosed.

A plastic container includes a hollow body portion including a lower supporting base portion; a sidewall portion extending upwardly from the base portion; and a neck portion extending upwardly from the sidewall portion. The neck portion includes a support flange having an upper and lower surface, at least one thread, and a dispensing opening at the top of the neck portion. In embodiments, a closure may be provided to form an assembly. A preform and method for making a container are also disclosed.

A finish of a preform and a container formed from the preform. The finish has a brim defining an opening of the finish. The brim is configured to provide a sealing surface with a forming and filling head for forming the container from the preform and filling the container with a product. A support flange extends from an outer side surface of the finish. The support flange includes an undersurface having an inner portion that is directly opposite to the brim. The inner portion of the undersurface of the support flange is closer to an axial center of the finish than an innermost portion of the outer side surface.

A plastic container includes a hollow body portion including a lower supporting base portion; a sidewall portion extending upwardly from the base portion; and a neck portion extending upwardly from the sidewall portion. The neck portion includes a support flange having an upper and lower surface, at least one thread, and a dispensing opening at the top of the neck portion. In embodiments, a closure may be provided to form an assembly. A preform and method for making a container are also disclosed.

The present invention provides a method for manufacturing a container, in which the occurrence of tears at a part corresponding to the sealing part of a preform is preventable during manufacture of the container by performing biaxial stretch blow molding on the preform formed by direct blow molding. The present invention provides a method for manufacturing a container, comprising a step of manufacturing a container main body by performing biaxial stretch blow molding on a preform, wherein the preform includes a direct blow molded body formed by performing direct blow molding on a molten tubular parison, and the direct blow molded body is provided with a protruding sealing part in which a sealing part, formed by welding inner surfaces of the tubular parison to each other, protrudes from a main body part of the direct blow molded body.