摘要:
A preform, which makes it possible to obtain PEF containers (bottles) having the awaited properties, notably mechanical, by an industrial injection stretch blow molding process, is of made of a thermoplastic PEF polymer of 2,5-FuranDiCarboxylic Acid (2,5-FDCA) monomer and monoethylene glycol (MEG) monomer and comprises a neck end 2, a neck support ring 3, and a closed tubular body portion 4. The preform is designed so as to produce, by injection stretch blow-molding, a container, the axial stretch ratio of which is greater than or equal to its hoop stretch ratio. Also provided is a plastic container 10, preferably a bottle, obtained by injection stretch blow-molding of PEF preform, the bottle 10 having an axial stretch ratio greater than or equal to the hoop stretch ratio. A method for manufacturing the bottle 10 is also provided.
摘要:
A multi-layered biaxial stretch blow molded bottle which has a three-layer structure of PET/nylon MXD6/PET or a five-layer structure of PET/nylon MXD6/PET/nylon MXD6/PET, and exhibits a permeation coefficient for an oxygen gas of the nylon MXD6 layer of 6.0 X 10-14 cm3·cm/cm2·sec·cmHg or less, as measured under a condition of a temperature of 23°C and a relative humidity of 80 %; and a method for producing said bottle which comprises employing a biaxial stretch blow molding using a low stretching temperature and a high stretch ratio.
摘要:
The invention concerns the manufacture of hollow bodies by polyester injection blow-moulding, more particularly hollow bodies used for packaging liquid food products, such as aerated beverages, mineral or natural water. More precisely, the invention concerns manufacturing hollow bodies having high thermo-mechanical properties such as bottles capable of sustaining, without significant deformation, relatively strong thermal stresses likely to occur during processes such as filling with a hot liquid or pasteurizing of their contents. The invention is characterized in that said hollow bodies are obtained by injection blow-moulding of a polyester having a high viscosity index and a concentration of different ethylene glycol and weak terephthalic acid monomers. The inventive hollow bodies or bottles are useful in particular in packaging processes of foodstuffs using a hot process pasteurization, for example beer packaging.
摘要:
A multi-layer biaxially stretched blow bottle having a 3-layer structure of PET/nylon MXD6/PET or a 5-layer structure of PET/nylon MXD6/PET/nylon MXD6/PET, wherein the oxygen gas transmission coefficient of the nylon MXD6 layer is at most 6.0 x 10 -14 cm 3 ·cm/cm 2 ·sec·cmHg as measured under conditions of a temperature of 23°C and a relative humidity of 80%, and a production process of the bottle by biaxial stretch blow molding at a low stretching temperature and high draw ratios.
摘要翻译:具有PET /尼龙MXD6 / PET的3层结构或PET /尼龙MXD6 / PET /尼龙MXD6 / PET的5层结构的多层双轴拉伸吹瓶,其中尼龙MXD6的氧气透过系数 层温度在23℃,相对湿度80%的条件下测定为6.0×10 -14cm 3·cm / cm 2·sec·cmHg以下,通过双轴拉伸吹塑 在低拉伸温度和高拉伸比下成型。
摘要:
A mold for blow molding a container from a preform, said container comprising a wall portion and a base including a high standing ring and a central outwardly-inclined invertible diaphragm, said mold comprising sidewalls forming a counter print of the wall portion of the container (1) and a mold base (36) having an upper surface (37) defining a counter print of the container base, characterized in that the upper surface (37) includes: - an annular peripheral face (43) corresponding to an annular support flange of the container base, - a frusto-conical outer face (44) corresponding to an inner portion (11) of the high standing ring, said outer face (44) protruding upwardly with a draft angle (A2) from an inner edge of the peripheral annular face (43) up to a sharp apex (45), - a frusto-conical downwardly inclined inner face (46) corresponding to the invertible diaphragm.
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:
An injection stretch blow moulded container prepared essentially from polyethylene prepared in the presence of a chromium-based catalyst system, the polyethylene having a density of from 0.950 to 0.965 g/cm 3 , measured following the method of standard test ASTM 1505 at a temperature of 23 °C, a melt index MI 2 of from 0.5 to 5 g/10min, measured following the method of standard test ASTM D 1238 at a temperature of 190 °C and under a load of 2.16 kg, and a high load melt index HLMI of from 40 to 150 g/10min, measured following the method of standard test ASTM D 1238 at a temperature of 190 °C and under a load of 21.6 kg, - the container weighing from 10 to 150g per dm 3 of volume, when the container has a volume of less than 300 cm 3 , - the container weighing from 10 to 80g per dm 3 of volume, when the container has a volume of at least 300 cm 3 .
摘要翻译:基于由在基于铬的催化剂体系存在下制备的聚乙烯制备的注射拉伸吹塑成型容器,密度为0.950-0.965g / cm 3的聚乙烯,按照标准试验ASTM 1505的方法,在 23℃,熔体指数MI 2为0.5〜5g / 10min,按照标准试验ASTM D 1238的方法,在190℃,2.16kg负荷和高负荷熔融指数HLMI 为40至150g / 10min,按照标准测试ASTM D 1238的方法,在190℃的温度和21.6kg的负荷下测量,容器的体积为10至150g / dm 3,当 容器的体积小于300厘米3, - 当容器的体积至少为300厘米3时,容器的体积为10至80克/分米3。
摘要:
An injection molded preform (148) for reheat stretch blow molding a container comprising polypropylene and having a finish (156), a neck (158) extending from the finish, a sidewall (160) extending from the neck and a base (162) extending from the sidewall, the preform comprising a finish having a support flange, and a preform blow section having a neck extending from the support flange, a sidewall extending from the neck and a base closing the blow section.
摘要:
Method of making a container having an elongated body equipped with a neck, such as a bottle (2), from a preform (1) made of thermoplastic polymer, said bottle (2) having special dimensional parameters. It essentially comprises a step of stretching and blowing a thin- walled (10) preform (I) with an average thickness (e) of its wall (10) less than 2 mm and an aspect ratio u = l/e, l being the length of the thin-walled preform (1), superior to 45. A thin-walled preform and a bottle are also claimed.