Abstract: A closure for bottles is disclosed which includes an internal radius support disk or cylinder for positioning within the bottle mouth to enable the bottle to resist radial inward deformation when subjected to pasteurization or other post-bottling heat treatment. The closure can be formed by coining a conventional aluminum roll-on cap blank using a pressure block having a central land projectable into the mouth of the bottle to form the support disk or cylinder from the top of the cap blank.

Abstract: A closure for bottles is disclosed which includes an internal radius support disk or cylinder for positioning within the bottle mouth to enable the bottle to resist radial inward deformation when subjected to pasteurization or other post-bottling heat treatment. The closure can be formed by coining a conventional aluminum roll-on cap blank using a pressure block having a central land projectable into the mouth of the bottle to form the support disk or cylinder from the top of the cap blank.

Abstract: A method for applying a PVDC polymer coating to the outside of a PET parison includes deionizing the surface of the parison, dipping the parison into an aqueous PVDC dispersion, withdrawing the parison at a controlled rate to prevent slubbing of the polymer coating, and drying the coating by exposure to desiccated air. The method dramatically reduces the energy requirements for coating operations yet produces a finished biaxially oriented PET container having superior gas barrier characteristics.

Abstract: An injection stretch blow molded container is disclosed having an integral tab for hanging the container with the finish end down so as to facilitate removal of the contents of the container. A method of making the container is disclosed which includes the use of an injection molded parison having an integral tab of the size and dimensions desired for the container tab. The parison is then situated in a blowing mold having a pocket for receiving the integral appendage. The parison is stretched until the appendage is received in the pocket in the mold wall and then blown to form the container having a wall conforming to the interior of the blowing mold. A surface of the integral appendage performs the function of the mold wall with respect to a portion of the container.

Abstract: A bottle formed of a flexible plastics material such as biaxially oriented polyethylene terephthalate having a convex, generally rounded bottom incapable of supporting the bottle in a stable, upright position, and a flexible snap-on supporting cup applied to the bottom of the bottle. The base of the cup has a support surface for supporting the bottle in a stable, upright position.