Abstract: A method including supplying a polypropylene resin, blending the polypropylene resin with Zinc Stearate, and forming a molded article from the polypropylene resin. Further, an article including a polypropylene resin blended with Zinc Stearate.

Abstract: An injection blow molding (IBM) system and method for forming a plurality of parisons and molded articles. The IBM system includes an injection station having upper and lower die sets and a plurality of upper and lower mold half blocks each attached to a respective die set. Each of the upper mold half blocks has a corresponding lower mold half block with which it cooperatively defines one or more cavities for forming the exterior shape of the body of one or more of the parisons. The individual, independent attachment of the mold half blocks to the die sets allows easy individual replacement of faulty or worn mold blocks. Further, such an independent attachment configuration also permits the mold half blocks of each die set to be spaced from one another, so as to reduce thermal expansion problems and ease dimensional tolerances required for the width of the mold half blocks.

Abstract: A blow molded synthetic resin bottle has a body and an elongated neck with the body providing a shoulder extending about the base of the neck. The neck has a first collar extending thereabout spaced adjacent the shoulder and at least one additional collar extending thereabout adjacent the upper end of the neck. The resin in the neck is substantially unoriented. To produce the bottle, a synthetic resin preform is injection molded with a generally tubular body and the elongated neck. This preform is placed in a blow mold cavity having a body receiving portion and a neck receiving portion that has a recess extending thereabout seating the first collar therein. The additional collar is disposed outwardly of the mold cavity and is disposed on the upper surface of the mold.

Abstract: A method for manufacturing a resonator is disclosed in which a sleeve insert is placed into a fixture within a blow molding apparatus. The sleeve insert has a wall with a first plurality of apertures in the wall at a first axial distance and a second plurality of apertures in the wall at a second axial distance. A parison is slid over the sleeve insert; the mold is clamped over the parison causing the parison to press into the sleeve insert at three locations: near the ends of the sleeve insert and at a location between the pluralities of apertures; and air is blown into the sleeve insert, via a blow pin, to expand the parison into the walls of the mold to form cavities proximate the first and second pluralities of aperatures. After cooling, the mold opens to release the newly formed resonator.

Abstract: The invention relates to an installation and a method of producing hollow bodies by injection molding and subsequent blow molding. The installation comprises an injection molding tool with at least one cavity for producing a preform with a neck continuation and a hollow body part adjoining the neck continuation, a blow mold for shaping the hollow body from the preform and transfer means for transporting the preform from the injection molding tool to the blow mold. The transfer means comprises a carrying frame in which at least one holding element for the at least one preform is disposed. When transferring the preform from the opened injection molding tool to the transfer means, the preform is held on the outside of its neck continuation by a tool part of the injection molding tool and is thereby removed from the cavity. The preform is then placed with the inside of its neck continuation into the holding element, such that the holding element bears against an inner surface of the neck continuation.

Abstract: Extrusion profile articles comprising a polyester having a dicarboxylic acid component and a glycol component. The dicarboxlyic acid component comprises at least 90 mole % terephthalic acid residues. The glycol component comprises at least 75 mole % ethylene glycol residues and 15 to 25 mole % residues of a difunctional glycol such as, for example, 1,4-cyclohexanedimethanol. Such extrusion profile articles can exhibit reduced haze, reduced sharkskin, and/or increased compatibility in PET recycling.

Abstract: Extrusion blow molded (EBM) articles comprising a polyester having a dicarboxylic acid component and a glycol component. The dicarboxylic acid component comprises at least 90 mole % terephthalic acid residues. The glycol component comprises at least 75 mole % ethylene glycol residues and 15 to 25 mole % residues of a difunctional glycol such as, for example, 1,4-cyclohexanedimethanol. Such EBM articles can exhibit reduced haze, reduced sharkskin, and/or increased compatibility in PET recycling.

Abstract: A blow-molding method for forming a squeezable or tubular plastic container is provided. The method includes molding a preform having a sidewall, an interior cavity, an open end, a closed end, and a neck adjacent the closed end of the preform. The neck of the preform has an engagement structure. The method includes providing a blow mold system including a blow mold cavity. The method includes placing at least a portion of the preform into the blow mold cavity, and blow molding a one-piece container body from the preform by inflating the preform within the blow mold cavity. The container body has an open end, a closed end and a neck adjacent to the closed end. Wherein the open end of the container body is formed from the open end of the preform, and the closed end of the container body is formed from the closed end of the preform. The method includes creating a dispensing opening through the closed end of the container body.

Abstract: A blow molding having capacity of at least 250 ml, having a shell which is composed of impact-resistant polystyrene and which is produced via injection stretch blow molding where an average aspect ratio of rubber particles derived from longitudinal section and an average aspect ratio of rubber particles derived from cross section measured in transmission electron micrographs is greater than 4 respectively, and a biaxial orientation of the rubber particles, given by the ratio of the aspect ratio derived from cross section to the aspect ratio derived from longitudinal section is smaller than 3.

Abstract: The present invention relates to an injection-stretch blow molding process (ISBM) for the manufacture of an impact-resistant container with good optical properties from a polyolefin composition comprising a polypropylene and a polyethylene produced with a metallocene-based catalyst.

Abstract: Injection stretch blow molding process for preparing polyolefin containers, comprising the following steps: 1) preparing a preform by injection molding a polyolefin composition comprising a polymer (A) selected from ethylene polymers, propylene polymers and mixtures thereof, and a heat absorber (B); 2) supplying heat to reheat the preform prepared in step 1) and stretch blow molding said preform; wherein the heat absorber (B) is selected from phosphates, condensed phosphates, phosphites, and mixed hydroxide/phosphate oxanion compounds of Copper (Cu), Calcium (Ca), Tin (Sn) and/or Iron (Fe).

Abstract: 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/cm3, measured following the method of standard test ASTM 1505 at a temperature of 23° C., a melt index MI2 of from 0.5 to 5 g/10 min, 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/10 min, 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 150 g per dm3 of volume, when the container has a volume of less than 300 cm3, the container weighing from 10 to 80 g per dm3 of volume, when the container has a volume of at least 300 cm3.

Abstract: A blow-molded container includes an opening section that can be closed, a side wall, and a closed bottom. The material in the region of the side wall is shaped by blow forming an injection-molded preform. At least three recessed grips are arranged along an outer perimeter of the container. At least two longitudinal ribs oriented in a longitudinal direction of the container are arranged between each pair of recessed grips. The longitudinal ribs are separated from each other by a recess, which also extends in a longitudinal direction. At least one circumferential rib, which extends in a circumferential direction of the container, is arranged inside each of the recessed grips.

Abstract: Injection stretch blow molded (ISBM) articles and methods of forming the same are described herein. The ISBM articles generally include a propylene-based impact copolymer.

Abstract: An apparatus for forming a container generally comprises a first mold part having an injection mold portion and a blow mold portion and a second mold part having a core pin. The core pin is configured to cooperate with the injection mold portion in a first position to define an injection mold cavity for forming a preform and an integral cap. The core pin is also configured to cooperate with the blow mold portion in a second position to define a blow mold cavity for forming a receptacle from the preform. The cap may be closed at the blow mold portion to seal the receptacle. One or more threads may be formed on a neck of the container.

Abstract: The present invention relates to a process for blowing an article with at least one recess.

Abstract: A parison is described, as also is a method for the production of plastics bottles, in particular PET bottles, this having a rigid, substantially elongate body (2), which has a base (5) at one of its ends. At its opposite end, the body (2) of the parison (1) adjoins a neck section (3) which has been provided with a pouring aperture (6) and which is separated from the body (2) via a radially protruding, flange-like support ring (4), and which has a parison shoulder (A) below the support ring (4). The parison (1) has an external diameter of from 17.4 mm to 21.4 mm measured at the transition of the body (2) to the base (5), its wall thickness at that point being from 3.4 mm to 4.4 mm. The parison (1) also has a wall thickness of from 1.4 mm to 2.2 mm at the parison shoulder (A). The external diameter of the parison shoulder (A) has been judged in such a way that its separation (d) from the blow molding wall (12) is from 1.2 mm to 3 mm when the parison (1) is inserted into the blow mold (10).

Abstract: The present invention relates to an injection-stretch blow molding process (ISBM) for the manufacture of an impact-resistant container with good optical properties from a polyolefin composition comprising a polypropylene and a polyethylene produced with a metallocene-based catalyst.

Abstract: A technical problem is to fully make up for a restricted upper limit to the preform body wall thickness. An object is to provide a bottle which is narrow-mouthed and yet has a substantially expanded body. The molding process comprises steps of: (1) injection molding a preform in the shape of a test tube taller than the bottle wherein the preform has a cylindrical mouth opening portion disposed in an upper part of the preform, and wherein the mouth opening portion of the preform serves also as a mouth opening portion of the bottle product; (2) thermally shrinking the preform from an initial height so that portions other than the mouth opening portion of the preform would have a height that is smaller than that of the bottle; and (3) setting this thermally shrunk preform in a blow mold and biaxially drawing and blow molding the preform into the bottle.

Abstract: Mold (1) for molding a container (2) obtained from a parison (3) of plastic material/ comprising: two half-molds (4); means (5) for moving said half-molds (4) between a closed position in which said half-molds (4) define a cavity (6) for housing the parison (3) or the molded container (2), and an open position in which said half-molds (4) are moved away from each other to enable the extraction of the molded container (2) from the cavity (6) or the insertion of another parison (3) in said cavity (6); two jaws (7) movable between a configuration' of engagement and a configuration of disengagement with the parison (3) or the container (2) located in said cavity (6), said half-molds (4) defining an inner portion (9) of the mold (1) that is complementarily shaped relative to an outer profile (10) of the jaws (7) in such a way that said jaws (7) are enclosed, at least partially, by said half-molds (4).

Abstract: A pearlescent container comprising about 86% to about 99.99% of a thermoplastic material having a Total Luminous Transmittance value of at least about 80%, about 0.01% to about 5% of a siloxane fluid having a viscosity of no greater than about 1,000,000 cst, wherein said thermoplastic material and said siloxane fluid are immiscible, forms a lamellar structure, and have a Refractive Index difference of at least about 0.1.

Abstract: Plastic container (100), particularly for storing liquid under pressure, comprising an integrally formed body with a bottom (101), an upright substantially cylindrical side wall (102) and an upper side (103) with a neck (104) having a bottom end and an open top end (115) in which closing means of the container can be mounted, wherein the upper side of the container, around the neck, is formed with at least one shoulder (105) and at least one valley (106) which runs downward in radial direction from the neck in the direction of the upright side wall; wherein each shoulder (105) protrudes upward relative to the at least one valley (106); which at least one shoulder and at least one valley are formed integrally with the body of the container.

Abstract: An injection blow molding method for making a container having the steps of injecting a molten crystallizable polymer in a preform mold via a hot runner system and biaxially stretching the preform by blowing to form a container. The method further having the step to selectively modify the flow path of the molten crystallizable polymer within the hot runner system.

Abstract: A method for manufacturing a resonator is disclosed in which a sleeve insert is placed into a fixture within a blow molding apparatus. The sleeve insert has a wall with a first plurality of apertures in the wall at a first axial distance and a second plurality of apertures in the wall at a second axial distance. A parison is slid over the sleeve insert; the mold is clamped over the parison causing the parison to press into the sleeve insert at three locations: near the ends of the sleeve insert and at a location between the pluralities of apertures; and air is blown into the sleeve insert, via a blow pin, to expand the parison into the walls of the mold to form cavities proximate the first and second pluralities of aperatures. After cooling, the mold opens to release the newly formed resonator.

Abstract: The present invention relates to a polyester composition for use in injection stretch blow molded articles comprising: i) an intrinsic viscosity in the range from about 0.65 to about 0.78 dl/g, and ii) an carboxyl end group concentration of about 47 mmole/kg or more. Other aspects of the present invention relate to stretch blow molded articles of the polyester composition and methods to produce these articles.

Abstract: The blow-moulded container (1) has a closable mouth portion (2), a side wall (3) and a closed base (4) with standing feed (7). The material in the region of the base is shaped by blow moulding an injection-moulded preform in such a way that, in at least one vertical sectional plane, a distance (8) between two standing feet becomes less, at least in certain portions, in a vertical direction of the container from the top downwards.

Abstract: Methods of fabricating a polymeric implantable device from a PLLA/PDLA blend such as a stent with improved fracture toughness are disclosed. The blend is melt processed to allow formation of stereocomplex crystallites, which are nucleation sites for crystal growth. A polymer construct is formed from the melt processed blend and device is formed from the polymer construct. The stereocomplex crystallites result in an in increase in nucleation density and reduced crystal size, which increases fracture toughness of the formed device.

Abstract: Thermoplastic articles may be manufactured having a high degree of visual appeal to consumers. Clarifying agents may be employed as additives in such thermoplastic articles to produce high clarity articles. A coloring agent may be mixed with clarifying agents to form a first blend, and then such a first blend may be applied in very low loadings to form a clarified polymeric article. It is possible to achieve an observable visual benefit while using very low loadings of coloring agent in a polyolefin, such as polypropylene. Carbon black is a pigment that may provide such observable benefits in polypropylene.

Abstract: A method for manufacturing a resonator is disclosed in which a sleeve insert is placed into a fixture within a blow molding apparatus. The sleeve insert has a wall with a first plurality of apertures in the wall at a first axial distance and a second plurality of apertures in the wall at a second axial distance. A parison is slid over the sleeve insert; the mold is clamped over the parison causing the parison to press into the sleeve insert at three locations: near the ends of the sleeve insert and at a location between the pluralities of apertures; and air is blown into the sleeve insert, via a blow pin, to expand the parison into the walls of the mold to form cavities proximate the first and second pluralities of aperatures. After cooling, the mold opens to release the newly formed resonator.

Abstract: A polymer endoprosthesis is fabricated by a combination of injection molding and blow molding which form a tubular substrate of polymer material, followed by laser cutting, crimping and sterilization. After the injection and blow molding processes, a subtractive process is performed on the tubular substrate to transform it into a stent having a network of stent struts. The tubular substrate can be made in an injection mold and blow mold which are attached to each other. The transition from injection molding and blow molding can be performed while the injection molded substrate remains at a temperature at or above Tg of the polymer material.

Abstract: A polyethylene resin having a multimodal molecular weight distribution comprising at least two polyethylene fractions A and B, fraction A being substantially free of comonomer and having a lower weight average molecular weight and a higher density than fraction B, each fraction prepared in different reactors of two reactors connected in series in the presence of a Ziegler-Natta catalyst system, the polyethylene resin having a density of from 0.950 to 0.965 g/cm3 and a melt index MI2 of from 0.5 to 5 g/10 min.

Abstract: In a method for manufacturing a socket for connecting a fluid conduit to a container made from thermoplastic synthetic material, wherein the socket has a first socket-shaped material arrangement of at least one layer and a second socket-shaped material arrangement of at least one layer, wherein the first material arrangement is thinner than the second material arrangement and the first and second material arrangements are both made of thermoplastic material at least predominantly and fuse with one another to form a fused joint, the first material arrangement is molded by extrusion or injection molding to a plane film or plate or to a hose. The film or plate is deepdrawn or the hose is blowmolded to a first preform with a socket contour. The second material arrangement is applied onto one side of the first preform in a socket contour by injection molding, coinjection or a monosandwich process.

Abstract: A container forming assembly and method includes receiving a parison within a cavity of a mold, enclosing the parison within the mold having a wall with a recess, inflating the parison in the mold to form a blow molded container where the blow molded container has a sidewall, a movable region formed at the recess, and a hinge circumscribing an interface between the sidewall and the movable region, and moving or repositioning the movable region toward an interior of the blow molded container about the hinge before filling. The movable region can form a deep-set grip. Further, multiple movable regions can be provided, each of which may form respective deep-set grips. The container shape can be symmetrical or asymmetrical.

Abstract: A method for manufacturing lamp shell to improve structural strength and light penetration includes steps of: providing a plastic material, injecting the plastic material into a injection molding equipment to form a preform containing a first space with an opening and a connecting section at one end and a closed another end to form a light penetrating section, and placing the preform in a blow molding equipment and blowing the plastic material by injecting gas to inflate the preform through gas pressure to form a second space at a greater size than the first space to become a lamp shell. The lamp shell thus formed has a greater structural strength to meet safety requirements, and also provides improved light penetration, and can reduce material consumption of the lamp shell to save production cost.

Abstract: A polymer composition of polypropylene copolymer and 1 to 50% by weight of hard resin. The polypropylene copolymer is either an impact copolymer or a random copolymer. The polymer composition can be used to make injection stretch blow molded articles having improved top load strength.

Abstract: An injection blow molding machine having an injection molding rotor including a plurality of injection molding units with individual split mold cavities for preforms, a transfer rotor, a blow molding rotor including a plurality of blow molds, and a removal rotor, essentially within a shared operating plane, and split mobile neck molding parts which fit into each blow mold and each mold cavity and which are transferred with a preform and removed with a stretch-blown bottle from the blow mold. In the process, each preform is transferred in the neck molding part into the blow mold.

Abstract: A method of stretch-blow-molding a beverage container for containing a carbonized beverage which method comprises providing a preform (11) having a neck part and a body part. The preform includes an inner layer (24) of a first polymeric composition, an outer layer (12) of a second polymeric composition, and an intermediate layer (22) of a third polymeric composition. The third polymeric composition has adhesive surface properties relative to the first and second polymeric compositions, and the adhesive surface properties are permanently degraded by exposure to irradiation of a certain wavelength or certain wavelengths and intensity. The method further comprises mounting the preform onto a stretch-blow-molding device and blow molding the preform into the beverage container by irradiating the body part with radiation at least including the certain wavelength or certain wavelengths and intensity while protecting the neck part from any substantial radiation.

Abstract: An injection moulded preform is disclosed which is then blown to form a bottle (16) for containing spices and other material which is ground before use. The preform is moulded with teeth (18, 20) which are on the inside of the part of the preform which constitutes the neck. A rotatable structure which fits onto the bottle has a core which fits into the neck. The core has external teeth which co-operate with the teeth (18, 20) of the preform to define a grinding gap.

Abstract: The invention relates to a continuous method for the direct production of multilayer mold bodies from a highly condensed polyester melt.

Abstract: The invention relates to a device and a method for producing preforms (14) with a special geometry, wherein the finished preforms have a neck region with a thread and a preform body, which adjoins the neck region and has an enlarged geometry in comparison with the cavity of the injection mould.

Abstract: The present invention provides a method for producing an injection molded panel member having a first portion, a second portion, and an appearance surface portion. The method includes placing the appearance surface portion of the panel member into a mold cavity. The mold cavity preferably includes a first chamber adapted to form the first portion of the panel member, and a second chamber adapted to form the second portion of the panel member. After the appearance surface portion of the panel member is inserted into the mold, molten plastic material and pressurized gas are injected into the first chamber of the mold cavity. After the molten plastic material is injected into the first chamber of the mold, molten plastic material is injected into the second chamber of the mold cavity. The molten plastic is then cooled until it solidifies. After the molten plastic is sufficiently cooled, the pressurized gas is vented and the panel member is removed from the mold.

Abstract: A method of manufacturing a multilayer or a monolayer plastic container is disclosed. The container has a barrier layer manufactured from (i) a polyester resin, preferably an aromatic polyester resin such as a polyethylene terephthalate, (ii) a polyamide material, preferably an aromatic polyamide material, and (iii) an oxygen scavenging material, preferably a transition method. The present invention also provides containers having a multilayer or a monolayer body. In the preparation of the barrier layer. a preform first is prepared by an injection-molding process wherein a preblend containing a diluent polyester, polyamide material, and an oxygen scavenging material is added to a base polyester during the injection molding process. The preform then is expanded to form a container.

Abstract: A vessel and method for forming the vessel is disclosed, the vessel having an injection blow molded hollow liner, wherein the hollow liner includes reinforced interfacial features formed substantially around a portion of at least one vessel penetration element.

Abstract: The present invention relates to a method of manufacturing an opening leaf upper module intended to be mounted at the periphery of a glass panel of a vehicle, and to an opening leaf upper module of this type particularly comprising a rigid frame and a flexible weather strip. The method of manufacturing an opening leaf upper module (1) according to the invention, comprising a molded frame (3) based on at least one thermoplastic polymer and a molded weather strip (4) secured to the frame and based on at least one elastomer, comprises a step whereby a moving-platen mold or alternatively transfer molding is used to perform multiple-shot injection molding of materials that are intended to form the frame and the strip which are injected in succession, the elastomer being a thermoplastic elastomer compatible with this thermoplastic polymer, so as to obtain the module formed as a single piece.

Abstract: Preform assembly (1) for blow moulding a container (20), comprising at least a first (2) and a second (3) preform, wherein the first preform (2) is positioned inside the second preform (3) before blow moulding the preforms into the container, wherein each preform has a body forming portion having a wall thickness of less than about 8 millimetres, preferably less than about 6 mm. A container blow moulded from the preform assembly and a method and an apparatus for forming the preform assembly are also disclosed.

Abstract: An injection blow molding (IBM) system and method for forming a plurality of parisons and molded articles. The IBM system includes an injection station having two die sets and two mold half assemblies. Each of the mold assemblies is attached to one of the die sets. The mold half assemblies are configured to cooperatively form the exterior shape of the necks of a plurality of parisons. Heat transfer channels formed in both the die sets and the mold half assemblies are fluidly connected with each other, such that a heat transfer fluid can be routed to the mold half assemblies via the die sets.

Abstract: An injection blow molding (IBM) system and method for forming a plurality of parisons and molded articles. The IBM system includes an injection station having two die sets and a plurality of first and second body mold halves each attached to a respective die set. Each of the first body mold halves has a corresponding second body mold half with which it cooperatively defines a cavity for forming the exterior shape of the body of one of the parisons. The individual, independent attachment of the body mold halves to the die sets allows easy individual replacement of faulty or worn molds. Further, such an attachment configuration also permits the body mold halves connected to a common die set to be spaced from one another, so as to reduce thermal expansion problems and ease dimensional tolerances required for the width of the body mold halves.

Abstract: An injection blow molding (IBM) system and method for forming a plurality of parisons and molded articles. The IBM system includes an injection station having two die sets, two body mold halves, and two neck mold halves. Each of the neck mold halves is attached directly to one of the die sets. The neck mold halves are configured to cooperatively form the exterior shape of the necks of one or more parisons. This type of neck mold attachment configuration can allow for better temperature control of the neck portion of the parison being molded therein. Further, such a neck mold configuration can reduce the cost of fabricating, installing, and/or replacing the neck molds.

Abstract: 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.

Abstract: Fluid-assisted injection molding articles and processes for producing the articles are described. In one embodiment, a fluid-assisted injection molded article is formed from a polymeric composition containing a polyethylene terephthalate homopolymer in combination with a polyethylene terephthalate copolymer. The polyethylene terephthalate copolymer may comprise a copolymer of polyethylene terephthalate with isophthalic acid. The polymeric composition can also contain a reinforcing agent, such as glass fibers. Products made in accordance with the present disclosure have shown dramatically improved surface characteristics. In particular, pitting on the surface of the molded article is minimized.