B29C49/06

MOLDING UNIT FOR COOLING RESIN MOLDED ARTICLE, BLOW MOLDING DEVICE, INJECTION MOLDING DEVICE, AND METHOD

There is provided a cooling mold unit for cooling a preform that has been injection-molded, the preform having a bottomed shape and made of a resin, the cooling mold unit including a core mold having an outer shape corresponding to an inner shape of the preform, and being insertable into the preform, in which an exhaust port configured to discharge air from an inside of the preform through an inside of the core mold is provided at a tip end portion of the core mold facing a bottom portion of the preform.

MOLDING UNIT FOR COOLING RESIN MOLDED ARTICLE, BLOW MOLDING DEVICE, INJECTION MOLDING DEVICE, AND METHOD

There is provided a cooling mold unit for cooling a preform that has been injection-molded, the preform having a bottomed shape and made of a resin, the cooling mold unit including a core mold having an outer shape corresponding to an inner shape of the preform, and being insertable into the preform, in which an exhaust port configured to discharge air from an inside of the preform through an inside of the core mold is provided at a tip end portion of the core mold facing a bottom portion of the preform.

Pulp Bottle with Molded Interior Lining and Methods of Making Same
20230226741 · 2023-07-20 ·

A container with a shell and lining within its interior is provided. The shell and/or lining can be fabricated from a biodegradable, recyclable, and/or compostable material. The lining can be configured as a parison, a preform, and/or other mass that is capable of being expanded. The lining can be inserted within a cavity of the shell and caused to expand to form an expanded state. The lining, in the expanded state, may be used as a barrier, preventing beverage that is inserted into the container from making contact with the shell. The lining, in the expanded state, may be configured to maintain contact with an inner surface of the shell so as to provide adequate shock absorption. The lining can be a thin film, providing an overall thinner construction and/or an overall lighter construction can be used to fabricate the container.

Lightweight plastic container and preform

A plastic container is provided that includes a hollow body portion including a lower supporting base portion; a sidewall portion extending upwardly from the base portion; and a neck portion extending upwardly from the sidewall portion. The neck portion includes a support flange having an upper and lower surface, at least one thread, and a dispensing opening at the top of the neck portion. In embodiments, a closure may be provided to form an assembly. In embodiments, the container may be comprised of PET, the weight of the neck portion from the lower surface of the support flange to a top of the dispensing opening may be 3.0 grams or less, and/or the vertical distance from the top of the dispensing opening to the lower surface of the support flange may be 0.580 inches or less. A preform and method for making a container are also disclosed.

Lightweight plastic container and preform

A plastic container is provided that includes a hollow body portion including a lower supporting base portion; a sidewall portion extending upwardly from the base portion; and a neck portion extending upwardly from the sidewall portion. The neck portion includes a support flange having an upper and lower surface, at least one thread, and a dispensing opening at the top of the neck portion. In embodiments, a closure may be provided to form an assembly. In embodiments, the container may be comprised of PET, the weight of the neck portion from the lower surface of the support flange to a top of the dispensing opening may be 3.0 grams or less, and/or the vertical distance from the top of the dispensing opening to the lower surface of the support flange may be 0.580 inches or less. A preform and method for making a container are also disclosed.

Injection Stretch Blow-Molding (ISBM) Enhancement for Semi-Crystalline Polyolefin Containers Utilizing Alicyclic Polyolefins
20230226739 · 2023-07-20 ·

An injection stretch blow-molded (ISBM) container prepared by way of injection molding a tubular preform followed by reheating and concurrently stretching and blow-molding the heated preform into the container. The container and preform comprise from 70 wt. % to 97.5 wt. % of a semi-crystalline polyolefin composition comprising one or polymers selected from polyethylene polymers and polypropylene polymers and from 2.5 wt. % to 30 wt. % of an alicyclic polyolefin composition, wherein the alicyclic polyolefin composition has a glass transition temperature, Tg, of from 60° to 145° C.

Injection Stretch Blow-Molding (ISBM) Enhancement for Semi-Crystalline Polyolefin Containers Utilizing Alicyclic Polyolefins
20230226739 · 2023-07-20 ·

An injection stretch blow-molded (ISBM) container prepared by way of injection molding a tubular preform followed by reheating and concurrently stretching and blow-molding the heated preform into the container. The container and preform comprise from 70 wt. % to 97.5 wt. % of a semi-crystalline polyolefin composition comprising one or polymers selected from polyethylene polymers and polypropylene polymers and from 2.5 wt. % to 30 wt. % of an alicyclic polyolefin composition, wherein the alicyclic polyolefin composition has a glass transition temperature, Tg, of from 60° to 145° C.

Apparatus and method for forming plastic preforms into plastic containers and blow mould
11559933 · 2023-01-24 · ·

Apparatus (1) for forming plastic preforms (10) into plastic containers (20). In a closed state of a blow mould (14), a contact area is formed between side parts (14a, 14b), in which the two side parts (14a, 14b) rest against each other, the side parts (14a, 14b) form a mould separation seam (5) in the contact area. In accordance with the invention, at least one section of at least one side part (14a, 14b) has a coating and/or an additional element (60) in a region of the mould separation seam (5), so that a heat transfer between the plastic preform (10) and the inner wall (52, 54) in the contact area can be delayed at least in places at these at least one section.

Process for treating container preforms with non-contacting plasma treatment
11701443 · 2023-07-18 · ·

Disclosed is a process for treating at least one hollow body made of thermoplastic material, such as a preform or a cap, the treatment process successively including at least the following steps: a first step, consisting in treating at least the inside of the hollow body using hydrogen peroxide; a second step, consisting in heating the hollow body; a third step, consisting in treating the hollow body with plasma in order to reduce the concentration of hydrogen peroxide residues. Also disclosed is a plant for manufacturing containers in which the process is carried out in particular by way of a unit for the plasma treatment of the preforms.

Method for manufacturing resin container and blow molding method

In a method for manufacturing a resin container, in the adjusting the temperature of the preform, the preform is accommodated in a cavity mold, a refrigerant introduction member is inserted into the preform, the refrigerant introduction member including a first flow path and a second flow path which are different in introduction or discharge position of a refrigerant, the preform is cooled by bringing the preform into close contact with an inner wall of the cavity mold at a pressure of the refrigerant introduced from the refrigerant introduction member. When the preform is cooled, cooling is performed by switching between a first cooling blow for introducing the refrigerant from the first flow path and discharging the refrigerant from the second flow path and a second cooling blow for introducing the refrigerant from the second flow path and discharging the refrigerant from the first flow path.