An injection blow molding method for making a container comprising the steps of injecting a molten crystallizable polymer in a preform mold via a hot runner system and biaxially stretching the preform by blowing, thereby forming a container, characterized in that said method further comprises means to selectively modify the flow path of the molten crystallizable polymer within the hot runner system.

A container made by blow molding out of crystallisable polymers having regular sequence of variations in molecular pre-alignment/orientation between different locations of the cross-section of the preform.

A method for manufacturing a stator for an electric machine, having the following steps: inserting a cast body with a nozzle from a first side of the stator into the stator, inserting a cast counterbody from a second opposing side of the stator into the stator, casting the stator with thermoplastic, thermosetting plastic, or resin by means of the nozzle, curing the thermoplastic, thermosetting plastic, or resin, wherein following the curing a cast-on piece of the thermoplastic, thermosetting plastic, or resin is sheared off using a rotational movement of the cast body or cast counterbody.

A container made by blow molding out of crystallisable polymers having regular sequence of variations in molecular pre-alignment/orientation between different locations of the cross-section of the preform.

The present invention relates to a method enabling either the selection, the modification of existing and/or the creation of newly developed polymer materials which may provide an improved response to the application of a local shear and/or extensional deformation inside the polymer melt in different manufacturing technologies such as and without being exclusive injection molding (IM), injection stretch blow molding (ISBM), direct injection (DI), extrusion blow molding (EBM), sheet extrusion, thermoforming, etc. In addition, a method for manufacturing a polymer article is provided comprising injecting or extruding a molten polypropylene, polyethylene or polyester based polymer for converting it into a (semi) final shape while applying a shear and/or extensional deformation on the polymer melt, wherein applying shear and/or extensional deformation on the polymer melt comprises selectively modifying the flow path of the molten semi-crystallizable polymer as a function of local pressure profile over at least part of the flow path, said local pressure profile being determined as a function of optimized response of the polymer melt to the applied local shear and/or extensional deformation over at least said part of the flow path.

A preform suitable for blow molding made out of crystallizable polymers made by biaxially stretching the preform by blowing to form a container. The preform having regular or irregular sequence of variations in molecular pre-alignment/orientation and regular or irregular sequence of variations in crystallinity between different locations of the cross-section of the preform.

A method of the selection, modification of existing, and/or creation of polyester based polymer materials, which provide improved response to the application of local shear and/or extensional deformation inside the polyester based polymer melt in injection stretch blow molding, is disclosed. A method for manufacturing a polymer article is also provided including injecting a molten polyester based polymer in a preform mold for converting it in a preform while applying shear and/or extensional deformation on the polyester based polymer melt. Applying shear and/or extensional deformation on the polyester based polymer melt includes modifying the flow path of the molten polymer as a function of local pressure profile over at least part of the flow path. The local pressure profile is determined as a function of optimized response of the polyester based polymer melt to the applied local shear and/or extensional deformation over at least said part of the flow path.

The present disclosure provides a method for preparing an injection-molded fiber-reinforced composite article using a molding machine controlled by a controlling module connected to the molding machine. The method performs a molding simulation executed on the controlling module to generate a shear rate distribution of the composite molding resin in a simulating domain. Subsequently, the method generates an orientation distribution of the fibers in the composite molding resin executed on the controlling module by taking into consideration an effect of the shear rate on an inter-fiber interaction and/or an effect of the shear rate on reducing a response rate of the fibers. A controller then controls the molding machine with the molding condition to perform an actual molding for injecting the composite molding resin into at least a portion of the mold cavity.

A heart valve is at least partially constructed from a block-copolymer, the block-copolymer having a phase structure formed by its constituent blocks, and wherein the phase structure is arranged so as to produce anisotropic physical properties in the heart valve.

Molding systems and methods for molding are disclosed. An example molding system may include a barrel having an input and an output. The barrel may have an inner diameter. A hopper for supplying a polymer material may be coupled to the input. The output may be configured to be coupled to a mold. A screw may be disposed in the barrel. The screw may have an outer diameter with a tight tolerance with the inner diameter of the barrel so that feeding the polymer material along the screw and through the barrel imparts shear forces onto the polymer material sufficient to alter the molecular structure of the polymer material and form a compounded material. A motor may be coupled to the screw. The motor may be configured to rotate the screw within the barrel. The screw may be axially fixed within the barrel so as to not reciprocate during a molding procedure. Alternatively, the screw may be configured to reciprocate within the barrel.