B29L2031/712

Biodegradable and waterproof shaped articles based on thermoplastic starch with lower retrogradation and improved mechanical properties

The invention relates to a method for producing a biodegradable thermoplastic starch-based article intended to come into contact with foodstuffs. In this method, the semi-crystalline starch granules are transformed into a homogeneous and almost amorphous material, called thermoplastic starch, by the addition of plasticizers at high temperatures and under shear. Thermoplastic starch is modified with organic acid during melt processing to prevent the retrogradation of starch. Moreover, cellulose derivatives are used as the reinforcement filler of thermoplastic starch. The article is produced using hot-pressing and then coating by immersion in a waterproofing solution.

DEVICE FOR CONTROLLING THE MOVEMENT OF A MOVABLE ELEMENT FOR A MACHINE FOR MANUFACTURING PLASTIC RECEPTACLES
20220379541 · 2022-12-01 ·

A plastic container manufacturing machine, comprising a chassis having a camway with a cam and a countercam and an element which is movable relative to the chassis, bearing a roller interacting with the camway so as to ensure the displacement of the movable element. The machine also comprising a device for controlling the displacement of the movable element. The countercam has at least one portion which is movable relative to the chassis, and the control device incorporates a distance sensor that continuously measures the distance of a movable portion of the countercam relative to a fixed reference point on the chassis.

METHOD AND MOULD FOR MAKING HOLED OBJECTS FROM PLASTIC MATERIAL
20220371235 · 2022-11-24 ·

A method for making an object (2) from plastic material, having a wall (21) and a through hole (22) formed in the wall (21), comprises the following steps: preparing a dose (20) of extruded plastic material; preparing a mould (1), having a first half mould (11) and a second half mould (12), mutually movable along a longitudinal axis (A1), wherein the first half mould (11) includes a body (111) and a plunger (112), the plunger (112) being movable relative to the body (111) between a retracted position and an advanced position; positioning the dose (20); closing the mould (1) to form a closed moulding space (V); moving the plunger (112) from the retracted position to the advanced position to squeeze the dose (20) so that the plastic material is forced to occupy the moulding space (V).

Resin Composition, and Molded Article and Multilayer Structure Each Comprising Same
20220372187 · 2022-11-24 · ·

The present invention relates to a resin composition comprising an ethylene-vinyl alcohol copolymer (A) with an ethylene unit content of 20 mol % or more and 60 mol % or less, a divalent metal hydroxide (B) and a monovalent metal compound (C), wherein a content of the divalent metal hydroxide (B) is 5 ppm or more and 5000 ppm or less, and a mass ratio (C/B) of the amount of the monovalent metal compound (C) in terms of the monovalent metal atom to the amount of the divalent metal hydroxide (B) in terms of the divalent metal atom is 0.025 to 100. Thus, there is provided a resin composition containing an ethylene-vinyl alcohol copolymer having excellent long run property during melt molding and excellent color phase in long-term melt molding.

TRANSPORT TRAY FOR PACKAGING UNITS

A transport tray with a plurality of sleeves each configured to receive a substantially cylindrical container having a cylindrical container wall and a container bottom surface arranged orthogonally to the container wall. Each sleeve includes a top opening, a bottom opening, a sleeve wall that extends along a sleeve axis between the top opening and the bottom opening and is configured to abut at least a portion of the container wall of a respective container, and one or more support feet adjacent to the bottom opening and extending from the sleeve wall towards the sleeve axis, wherein each support foot has a bottom surface and a top surface configured to abut the container bottom surface of a respective container forming a gap between the support foot bottom surface and the container bottom surface along the sleeve axis. The one or more support feet comprise a thermally conductive polymer.

Thermoplastic composite materials for portable information handling system enclosures

Enclosure parts for portable information handling systems may be made by heat pressing material layers together. The material layers may include outer fiber-reinforced thermoplastic layers and a core thermoplastic layer comprising a plurality of thermoplastic film layers. The core thermoplastic layer may be die cut to create voids that reduce weight of the enclosure part. A finishing layer may be added, along with attachment features.

Device and method for processing containers by means of a driverless transport system

Provided is a device for processing containers, in particular plastic containers, including at least one container-processing apparatus, which has at least one changeover access entry, at which at least one of format parts and tools can be exchanged during changeover operation, and including a transport system, by means of which the at least one of format parts and tools can be brought to the at least one container-processing apparatus. The transport system is a driverless transport system, by which the format parts and/or tools can be automatically brought to at least one container-processing apparatus.

Method and apparatus for producing plastic preforms and plastic containers with thermal preform storage
11590684 · 2023-02-28 · ·

Method for operating an apparatus for producing plastic preforms and plastic containers, comprising at least one injection moulding machine and one blow moulding machine, wherein the plastic preforms are injection moulded within the injection moulding machine and are formed into plastic containers within the blow moulding machine and are transported from the injection moulding machine to the blow moulding machine, wherein a heating device is arranged downstream of the injection moulding machine and the injection moulding machine and the blow moulding machine are coupled to one another. According to the invention, the plastic preforms produced in the injection moulding machine are transferred directly after production to a thermal preform storage, which holds the plastic preforms at a predetermined temperature and wherein a speed and/or at least one parameter of at least one subsequent treatment device can be changed.

Sealed Connection For Fluid Conduit Parts

An assembly of fluid conduit parts is disclosed along with a method of assembling, a method of manufacturing and an apparatus for manufacturing the one of the fluid conduit parts. The assembly includes a blow molded part having a first portion. A second part includes a tapered section and a sealing flange extends from the first portion towards a central axis of the first portion at a distance, an end of the sealing flange defines an opening. The second part inserts into the opening and at least part of the tapered section is of a size larger than the opening. The sealing flange flexes upon insertion of the second part into the opening to define a contact surface between the tapered section and the sealing flange that extends around a perimeter of the tapered section where the sealing flange contacts the tapered section.

MANUFACTURING METHOD, MANUFACTURING APPARATUS, AND MOLD UNIT FOR RESIN CONTAINER

A manufacturing method of a resin container includes: a first injection molding process for injection-molding a first layer of a preform having a bottomed cylindrical shape by using a first resin material; a second injection molding process for injecting a second resin material having a color that is different from a color of the first resin material, and laminating a second layer on an outer peripheral side or an inner peripheral side of the first layer; and a blow-molding process for blow-molding a preform that includes multiple layers and has been obtained in the second injection molding process in a state where residual heat at a time of injection molding is contained, and manufacturing the resin container having a color pattern that corresponds to a thickness distribution of the first layer and the second layer.