An overmolding method for making thermoplastics articles of manufacture, for the perfumery and cosmetics fields, comprises the steps of: a) providing a first plastics material in a form suitable for an injection molding; b) providing an injection press, and molding by the injection press the first plastics material thereby providing a raw molded article of manufacture; c) associating with the raw article of manufacture made in said molding step: d) at least an insert element of a material different from the plastics material thereby providing an assembly of the raw molded article of manufacture and the insert element; and e) overmolding on the assembly at least a second plastics material thereby providing a finished molded article of manufacture.

The invention relates to a method for producing a syringe with an integrated closure element, which method comprises the following method steps: a) making available an injection moulding tool which comprises a first, a second and a third tool portion, wherein the first tool portion has a mould cavity open at both sides and extending along an axial direction (X), and wherein the second tool portion has a first injection moulding core and the third tool portion has a second injection moulding core; b) closing the injection moulding tool such that the first tool portion contacts the second and third tool portion, and the first and second injection moulding core each enter the mould cavity of the first tool portion through an opening and finally contact each other, as a result of which these tool portions form a first structural cavity; c) injecting a first plastic material into the first structural cavity, as a result of which a hollow cylindrical syringe body is formed with an end region at its distal end, wherein the end region has an attachment element, provided with an inner thread, and a hollow cylindrical endpiece which is at least partially bounded by the attachment element; d) cooling the tool portions, as a result of which the syringe body cools and hardens; e) bringing the first tool portion into contact with a fourth tool portion provided with a mould cavity closed at one end, as a result of which a second structural cavity is formed at the distal end of the syringe body; f) injecting a second plastic material into the second structural cavity, as a result of which the closure element is integrally formed on the attachment element, wherein the first and the second plastic material do not enter into a cohesive connection.

A punch for the compression molding of plastic material for forming capsules for containers closure, wherein the punch includes a stem portion made of steel and a head portion made of copper alloy screwed to the stem portion, wherein a separation interface between the stem portion and head portion includes a passage for gas that reaches a bottom surface of the punch delimitating one forming cavity where the compression molding of the plastic material occurs, and wherein one channel internal to the head portion communicates with the passage for gas to enable extraction of gas out of the forming cavity.

The disclosure relates to a synthetic closure for a product-retaining container constructed for being inserted and securely retained in a portal-forming neck of said container, said closure comprising at least a core member comprising at least one thermoplastic polymer, and at least one peripheral layer at least partially surrounding and intimately bonded to at least one surface of the core member, said peripheral layer comprising at least one thermoplastic polymer, wherein the synthetic closure is formed by extrusion, and at least one of the core member and the peripheral layer comprises a plurality of cells, and wherein the synthetic closure comprises cork powder.

A closure includes a top wall portion, an annular skirt portion depending from the top wall portion and a tamper-evident band. The skirt portion includes an internal thread formation. The tamper-evident band depends from and is at least partially detachably connected to the skirt portion by a frangible connection. The closure further includes a 2-stage tag imbedded therein. The 2-stage tag includes an antenna, a switch with a plurality of leads, and a chip or integrated circuit. The current path of the switch is interrupted after the tamper-evident band has been at least partially broken from the skirt portion. The chip stores first and second readable codes that correspond to unopened and opened positions. The frangible connection extends through the 2-stage tag and includes at least two bridges.

This disclosure relates to caps and closures manufactured from an ethylene interpolymer product, or a blend containing an ethylene interpolymer product.

A compression molding device, which can obtain a high compression molding force without lowering the efficiency of article production, and whose molding means has a long service life, is provided. In the compression molding device, a one-side mold assembly moving means (58) includes a toggle link mechanism including two links (62) and (64), and a toggle link mechanism operating means (60), while an opposite-side mold assembly moving means (108) includes a hydraulic cylinder mechanism. When a one-side mold assembly (16) and an opposite-side mold assembly (18) are to be brought from an open state into a closed state, the one-side mold assembly (16) is first moved to a nearly closed state by the one-side mold assembly moving means (58), and then the opposite-side mold assembly (18) is moved from the nearly closed state to the closed state by the opposite-side mold assembly moving means (108).

A system (200) for making a fitted cap (300) comprises a fastener template (202), dimensionally identical to a portion (106) of a fastener (100) and extending from a support plate (210), and a first plurality of through-openings (212) penetrating the support plate (210) and arranged about the fastener template (202). The system (200) also comprises a precursor cap (320) that is geometrically complementary to the fastener template (202), first means (217) for heating a first polymer sheet (270), and second means (219) for applying suction to the first polymer sheet (270) through the first plurality of through-openings (212) to vacuum-form the first polymer sheet (270) over the precursor cap (320). After vacuum-forming the first polymer sheet (270) over the precursor cap (320), at least a portion of the first polymer sheet (270) forms the fitted cap (300). The fitted cap (300) is configured to apply a shaped sealant shroud (590) to the portion (106) of the fastener (100).

This disclosure relates to caps and closures manufactured from an ethylene interpolymer product, or a blend containing an ethylene interpolymer product.

The present disclosure describes bottle closure assemblies which are made at least in part with a high density unimodal polyethylene. The bottle closure assembly includes a cap portion, an elongated tether portion and a retaining means portion. The retaining means portions engages a bottle neck or an upper portion of a bottle. The elongated tether portion connects at least one point on the cap portion to at least one point on the retaining means portion so as to prevent loss of the cap portion from a bottle.