摘要:
The present disclosure provides a container and a method of making a container. In one example, the container includes an upper portion having a finish defining a longitudinal axis and an opening into the container. A shoulder region is integrally formed with and extends from the upper portion. A sidewall portion extends from the shoulder region to a base portion. A tamper evident (TE) band is formed on the finish and defines an outermost surface of the plastic container above the shoulder region. A neck defining a cylindrical sidewall is integrally formed with and extends between the finish and the shoulder region. The neck defines a uniform cylindrical sidewall along its entire height between the finish and the shoulder region. The container further includes a debossed support flange defined on the upper portion. The debossed support flange defines a diameter less than a diameter defined by the TE band.
摘要:
The present invention relates to a solid preform made from polyethylene material, wherein the preform comprises a neck region, side walls and a base region, and has an interior having inner walls and an exterior having outer walls; characterised in that at least 65% of the polyethylene material by weight of the total polyethylene material has a Z-average molecular weight (Mz) of between 300,000 g/mol and 6,000,000 g/mol, and a Mz/Mn value of greater than 28, where Mn is the number average molecular weight, and Mz/Mn is the Mz value divided by the Mn value.
摘要:
A multilayer plastic container comprises a layer of a polypropylene and an intermediate layer directly adjacent the layer of polypropylene wherein at least one of the polypropylene and intermediate layers comprises an adhesive such as maleic anhydride incorporated therein to adhere the layer of polypropylene to the layer of EVOH.
摘要:
The present disclosure provides a container and a method of making a container. In one example, the container includes an upper portion having a finish defining a longitudinal axis and an opening into the container. A shoulder region is integrally formed with and extends from the upper portion. A sidewall portion extends from the shoulder region to a base portion. A tamper evident (TE) band is formed on the finish and defines an outermost surface of the plastic container above the shoulder region. A neck defining a cylindrical sidewall is integrally formed with and extends between the finish and the shoulder region. The neck defines a uniform cylindrical sidewall along its entire height between the finish and the shoulder region. The container further includes a debossed support flange defined on the upper portion. The debossed support flange defines a diameter less than a diameter defined by the TE band.
摘要:
A method of making a wide mouth, blow molded PET plastic container having an externally threaded neck, the diameter and wall thickness of the neck and threads have a critical relationship to the diameter and wall thickness of the preform used to blow the intermediate article of which the container is a part. A PET plastic container having a threaded neck with a wall thickness of within the range of 0.032 to 0.038 inches.
摘要:
A blow molded article obtained by a direct-blow molding process and including a bottom portion (4), a cylindrical body portion (3) arranged above the bottom portion (4), and a cylindrical mouth portion (2) arranged above the body portion (3). In the present invention, at least three pinch-off lines (7) caused by mold-pieces (15) of a split bottom-mold are formed in a diverging manner from a center of a bottom face (5) of the molded article.
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:
A container obtained by biaxially stretch-blow-molding a resin. Except the mouth-and-neck portion, vicinities thereof and the center of the bottom portion, the container as a whole is reduced in thickness under a highly drawing condition without accompanied by whitening, and a portion constituting the bottom valley portions has an yielding load of not smaller than 25 kg/cm at 70.degree. C. The container exhibits excellent heat resistance, pressure resistance, shock resistance as well as self-standing ability.
摘要翻译:通过双轴拉伸吹塑树脂获得的容器。 除了口颈部,其附近和底部的中心之外,容器整体在高拉伸条件下的厚度减小,而不伴随着白化,构成底部谷部的部分具有屈服载荷 在70℃下不小于25kg / cm 2。容器表现出优异的耐热性,耐压性,抗冲击性以及自立能力。
摘要:
A five-layered container formed by biaxial orientation blow molding of an injection-molded, five layered-structured parison, wherein central, innermost and outermost layers comprise a resin A, two intermediate layers between the innermost layer and the central layer and between the outermost layer and the central layer comprise a resin B, the resin A comprises a polyester resin containing ethylene terephthalate as a main recurring unit, and the resin B comprises a mixture of a polyester resin containing ethylene terephthalate as a main recurring unit with polyarylate or a resin produced by an ester-exchange reaction of said polyester resin with polyarylate, and a m-xylene group-containing polyamide resin.
摘要:
A preform (10) for producing a plastic preform for forming blow molded plastic containers which comprises: a neck portion (16) defining an opening; a tubular sidewall portion (24) depending therefrom; and an integral base structure (28) depending from the tubular sidewall portion to a closed end (32); the preform having an outside wall face and an inside wall face with one of these, in the base structure, having integrally formed thereon a plurality of filets (36), extending longitudinally of the preform and defining a reinforcement (38) of varying thickness spaced from the closed end and circumscribing the base structure, wherein the filets decrease progressively in width and radial thickness at least from the reinforcing ring toward the closed end. The preform is capable of forming a blow molded plastic container with a bottom portion (130) having a reinforcement of circumferentially continuous radially extending alterations in wall thickness with a regularly undulating cross-section along the circumference. Preferably the filets are integral with the inside wall face. The invention also covers a mold-core rod combination for making such a preform, a process of using such a preform to make plastic containers by stretch/blow molding and containers including containers when produced from said preforms or combinations, or by said process.