摘要:
Overmolded containers and methods of manufacture thereof are disclosed, which may provide enhanced visual and tactile characteristics, enabling innovative packaging designs, improved grippability and thermal insulation. The containers can be made cost effectively manner, with minimal impact on polymer recycling streams. The methods of making the container include the steps of providing a container preform which comprises a thermoplastic polymer, such as a PET copolymer; overmolding an elastomeric material over at least a portion of the preform to form an overmolded preform; and blow-molding the overmolded preform to form an overmolded container. In one embodiment, the overmolded container is a beverage container.
摘要:
A container for a carbonated beverage comprises a closure which optionally comprises a closure liner, a container body having a sidewall comprising a polyester composition suitable for packaging a carbonated beverage, and a porous, absorptive inorganic additive which is disposed in the closure, the closure liner, the side wall, or combinations thereof, and is capable of absorbing carbon dioxide. Such a container is well suited for packaging aqueous carbonated beverages to replace at least a portion of carbon dioxide that is lost from the packaged beverage via permeation. Thus, a packaged carbonated beverage and a corresponding method of packaging a carbonated beverage are also disclosed.
摘要:
The present invention relates to a process for producing a hollow plastic preform suitable for blow molding a plastic container comprising a visible designed pattern on its surface, and to a plastic container produced thereof. The process of the present invention allows achieving different aesthetics effects on the finished container and may additionally impart those containers with anti-slippery properties and/or pleasant tactile sensation.
摘要:
Improved plastic article having an integral radio frequency identification (RFID) as an integral, permanent part of the article. The RFID can be molded onto an article; as a memory chip-antenna combination molded onto a desired location on an article.
摘要:
There is provided a container system adapted to withstand a single impact or repeated impacts. The container system features a first container having a first container body. The container system further features a second container which has a second container body. The second container defines a second body height and a second body wall thickness. A body recess which is adapted to releasibly engage the first container body of the first container is formed on the second container body and is extended along the second body height. The body recess defines at least one recess bottom corner having a recess bottom corner wall thickness which is at least identical to the second body wall thickness of the second container body. This specified bottom corner wall thickness of the body recess allows the second container to withstand the single impact or repeated impacts.
摘要:
The present invention relates to an injection stretch blow molding method of forming a cylindrical narrow mouth container comprising the following steps; injection molding a preform having a body portion integrally molded with a neck portion wherein the body is formed thicker-wall and larger outside diameter than the neck portion from a closing surface between a neck mold and an injection cavity mold, and having a step-out portion, wherein an upper surface of the step-out portion is formed by the closing surface of the neck mold between the neck portion and the body portion and the step-out portion has a smaller outside diameter than the body of the container, and stretch blow molding the preform to the container in a blow cavity mold, wherein a body portion of the container is formed thin-wall from around the upper surface of the step-out portion, and the step-out portion and an expanded portion around the upper surface of the step-out portion form a shoulder portion of the container flat, and also the outside diameter of the step-out portion is smaller than the outside diameter of the open end of a cap.
摘要:
A tube-like plastic container (1) and a preform (11) therefor, the tube-like plastic container (1) comprising a bottomed drum part (3) molded by stretch-blowing in thin wall thickness continuously connected to a mouth part (2), wherein a continued portion between the drum part (3) and the mouth part (2) is formed in a shoulder part (5), and the drum part is formed in a tapered flat wedge-like form in shape together with a bottom end (4); the preform (11) therefore, comprising a bottomed drum part (13) integrally formed with and continuously connecting to the mouth part (12), wherein a continued portion between the drum part (13) and the mouth part (12) is formed in an projecting edge (15) in a concentric circle in cross section and the drum part (13) is formed in a flat wedge-like form in an elliptic or oval shape in cross section, a peripheral wall of the drum part being formed thicker in thickness than the wall of the mouth part (12), the bottom end (14) being formed into a thinner flat bottom in wall thickness than the drum part (13), the drum part (13) being tapered toward the bottom end (14) on a slant, and the bottom end (14) is formed in a flat bottom thinner in wall thickness than the drum part, whereby even the resin tube-like container molded by stretch-blowing can be used as a bottomed one without requiring a secondary working as in the case of a packaging container in an usual shape.
摘要:
A preform (207,301), and a container (201,312,319) blown therefrom in a two stage process (as defined in the specification) is disclosed having a loop (202,304,313) defining a handle portion of the resulting blown container and wherein the loop is integrally connected by both a first end (306) and a second end (308) to respective first location (307) and second location (309) of the preform during manufacture of the preform.
摘要:
A multilayer plastic container having enhanced strength for high temperature and pressure applications such as the pasteurization of carbonated juice drinks. The container is commercially cost-effective in comparison to prior art pasteurizable glass containers, and provides all of the advantages of plastic over glass, i.e., lightweight, shatter-resistant, etc. In a particular embodiment, the multilayer container includes inner and outer layers of a relatively high IV virgin PET, e.g., 0.85-0.90 dl/g, and a core layer of post-consumer PET having a substantially lower IV. The container has a relatively tall and slender profile, with high orientation levels in the panel and shoulder, and an oriented thick-walled base with feet. The base preferably has a high profile and angled foot pads which are allowed to move outwardly under creep. According to a method of making a multilayer preform for such container, an enhanced injection rate and mold pressure are utilized to enhance interlayer bonding and prevent separation of the layers in spite of their substantial differences in IV.
摘要:
This invention relates to methods and apparatus for making articles made of polyester, preferably polyethylene terephthalate (PET), having coated directly to at least one of the surfaces thereof one or more layers of thermoplastic material with good gas-barrier characteristics. In one preferred method and apparatus, preforms are injection molded, barrier-coated immediately thereafter, and remain on a mold portion for a time to speed cooling of the completed preform. Preferably the barrier-coated articles take the form of preforms coated by at least one layer of barrier material and the containers are blow-molded therefrom. Such barrier-coated containers are preferably of the type to hold beverages such as soft drinks, beer or juice. The preferred barrier materials have a lower permeability to oxygen and carbon dioxide than PET as well as key physical properties similar to PET. The materials and methods provide that the barrier layers have good adherence to PET, even during and after the blow molding process to form containers from preforms. Preferred barrier coating materials include poly(hydroxyamino ethers).