One-piece, continuoulsy blow molded container with rigid fitment

Abstract

A one-piece, blow molded fluoropolymer container, having a thin-walled, flexible bag portion and one or more rigid, thick-walled fitment, wherein the bag and the one or more rigid fitment are formed during the same blow molding process, from a continuous source of fluoropolymer material, to form a complete, one-piece, fully integrated container.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims the benefit of U.S. Provisional Patent Application No. 60 / 931,958 entitled “ONE-PIECE BLOW-MOLDED CONTAINER WITH RIGID FITMENT” and filed on May 29, 2007 for Cathy G. Edgington, which is incorporated herein by reference.FIELD OF THE INVENTION[0002]A one-piece, continuously blow molded, fluoropolymer container for storage, transport, and dispensing of various liquid, gel, powder, and pelletized materials. In particular, the present blow molded container invention is formed using a continuous, single step blow molding process to create a complete, fully-integrated, one-piece container that includes a collapsible, thin-walled, bag portion constructed of a thin layer fluoropolymer film and one or more rigid fitment which are formed of a greater thickness fluoropolymer resin, as compared to the thin fluoropolymer film.BACKGROUND OF THE INVENTION[0003]The assembly of multiple component (multi-piece) containers constructed...

AI Technical Summary

Benefits of technology

[0009]The present invention includes a blow molded container, having a thin-walled, flexible film bag and one or more rigid, thick-walled fitment wherein the bag and the one or more rigid fitment are blow molded during a single, continuous blow molding process, from a continuous source of fluoropolymer material, to form a complete, one-piece, fully integrated, three dimensional container. The container of the present invention has particular relevance to the storage, transportation, and dispersal of corrosive and/or hazardous materials and other materials, which may present a potential hazard or concern in their use and/or transportation. The blow molding process used to manufacture the present invention is unique in that it produces a single complete, three-dimensional container with a thin-walled film bag portion and one or more rigid, thick-walled

Problems solved by technology

Further, fluoropolymer containers have extremely low permeability to liquids, gasses, and vapors.

A major disadvantage of the known fluoropolymer containers is the requirement of using a multi-step manufacturing process, where the thin walled pouch or bag portion of the container is formed during a first step, and in the second step, a pre-formed, relatively thick-walled material comprising a rigid neck, spout, fitment or other sealing or dispensing mechanism is then mechanically affixed or welded to the thin walled bag.

Additionally, there are other shortcomings associated w

Images