Device (1) for processing a particle foam material for producing a particle foam molded part, comprising: at least one functional unit (2), through at least portions of which at least one working medium that is or can be used in the operation of the device (1) flows or can flow during operation of the device (1), at least one supply unit (7) for supplying the or at least one working medium that is or can be used in the operation of the device (1) to the at least one functional unit (2), at least one discharge unit (10) for discharging the or at least one working medium that is or can be used in the operation of the device (1) from the at least one functional unit (2), at least one preparation unit (13) which is or can be connected to the at least one supply unit (7) and/or to the at least one discharge unit (10) and is designed for preparing the or at least one working medium that is or can be used in the operation of the device (1).

Methods and systems for manufacturing a foam board system are disclosed. In some examples, a system includes an applicator to distribute one or more fluids onto a substrate. One or more sensors configured to measure one or more characteristics of the one or more fluids. A control circuitry is configured to compare the one or more measured characteristics to one or more threshold characteristics, and to adjust one or more operating parameters of the system in response to a characteristic of the one or more measured characteristics falling outside a threshold of the one or more threshold characteristics.

A molding system and a method for operation of the molding system are provided. The method includes flowing a molten polymeric material into a shot tuning chamber from an upstream device, adjusting a temperature of and/or pressure applied to the molten polymeric material in the shot tuning chamber, and flowing the molten polymeric material from the shot tuning chamber into a mold cavity.

A mixing device for producing a plastic melt loaded with propellant, from which a foamed plastic part is producible in a molding machine, includes a mixing chamber, at least one propellant inlet device for feeding propellant into the mixing chamber, an inlet channel for plastic melt, and an output channel for dispensing plastic melt loaded with propellant. A first gas-tight shutoff device is provided for closing the inlet channel, and a second gas-tight shutoff device is provided for closing the output channel.

A mixing device for producing a plastic melt loaded with propellant, from which a foamed plastic part is producible in a molding machine, includes a mixing chamber, at least one propellant inlet device for feeding propellant into the mixing chamber, an inlet channel for plastic melt, and an output channel for dispensing plastic melt loaded with propellant. A first gas-tight shutoff device is provided for closing the inlet channel, and a second gas-tight shutoff device is provided for closing the output channel.

A production method of a modeled object includes a fixing step of fixing a thermally expandable sheet onto a tray by entirely or partially fixing a periphery of the thermally expandable sheet placed on the tray by a fixing member; a thermally expanding step of thermally expanding partially the thermally expandable sheet, which is in a state of being fixed onto the tray by the fixing step, by being heated by irradiating the thermally expandable sheet with light by an irradiation unit, while moving the irradiation unit from a first position toward a second position unit; and cooling the thermally expandable sheet, which has been thermally expanded partially by the thermally expanding step, while maintaining the state in which the thermally expandable sheet is fixed onto the tray, while returning the irradiation unit from the second position to the first position.

A production method of a modeled object includes a fixing step of fixing a thermally expandable sheet onto a tray by entirely or partially fixing a periphery of the thermally expandable sheet placed on the tray by a fixing member; a thermally expanding step of thermally expanding partially the thermally expandable sheet, which is in a state of being fixed onto the tray by the fixing step, by being heated by irradiating the thermally expandable sheet with light by an irradiation unit, while moving the irradiation unit from a first position toward a second position unit; and cooling the thermally expandable sheet, which has been thermally expanded partially by the thermally expanding step, while maintaining the state in which the thermally expandable sheet is fixed onto the tray, while returning the irradiation unit from the second position to the first position.

Provided is a material having an excellent sound-absorbing performance which can be easily applied to the desired area at the operation site and which can effectively prevent sound leakage.

The material includes an open-cell soft polyurethane foam prepared from a 2-part reactive urethane resin composition prepared from a polyisocyanate component and a polyol-containing component, wherein the polyol-containing component comprises a polyol component, catalysts, a foam stabilizer, an amine compound having primary or secondary amino groups, and carbon dioxide; wherein an average sound absorption coefficient of said polyurethane foam is 30% or more, measured in accordance with JIS A 1405-2:2007 for 63 hertz to 5000 hertz; and the length of liquid-dripping is within 300 mm.

A process for injection molded microcellular foaming various flexible foam compositions from biodegradable and industrially compostable bio-derived thermoplastic resins for use in, for example, footwear components, seating components, protective gear components, and watersport accessories wherein a process of manufacturing includes the steps of: producing a suitable thermoplastic biopolymer or biopolymer blend; injection molding the thermoplastic biopolymer or biopolymer blend into a suitable mold shape with inert nitrogen gas; controlling the polymer melt, pressure, temperature, and time such that a desirable flexible foam is formed; and utilizing gas counterpressure in the injection molding process to ensure the optimal foam structure with the least amount of cosmetic defects and little to no plastic skin on the outside of the foamed structure.

Described herein are expandable foaming molds. The foaming molds described herein permit mold boundaries to expand along with the expanding polymer and thereby conform to the foaming dynamics of the polymer material. By modifying the temperature and pressure applied to the mold devices described herein, the properties of the resulting foamed polymer can be fine-tuned for specific applications.