Mixing device (1) for dispensing a multi-component polymeric mixture, comprising a main body (2) comprising a mixing chamber (3) for mixing a first and a second component of the mixture, the mixing chamber having a main development along a longitudinal direction (100) and comprising a respective longitudinal open end (4); a movable body (5) having a central axis (101) with longitudinal development and slidably housed in the main body (2) to alternatively assume, by sliding along the longitudinal direction (100), an occlusion position of the mixing chamber (3) and a mixing position, wherein the movable body (5) comprises a first channel (6) and a second channel (7) each comprising a respective end portion (20) both displaced from the central axis (101) of the movable body (5) and developing substantially along the longitudinal direction (100) up to a longitudinal end face (8) of the movable body (5) facing the open longitudinal end (4) of the mixing chamber (3), wherein the respective end portions (20) of the first (6) and second channel (7) develop inside the movable body (5) or they are made by respectively a first (9) and a second groove (10) obtained on a longitudinal surface (11) of the movable body (5), each groove (9, 10) having development with a component perpendicular to the longitudinal direction (100).

A flexible discontinuous process produces a series of at least two articles containing thermally insulating polyurethane foam from at least three streams (A), (B) and (C). The process involves mixing the at least three streams with different mixing ratios and injecting the mixture into cavities of the articles. A production unit can be used for performing this process.

An inkjet printer includes a mixer and a metering system that system provides appropriate amounts of the resin's precursors into the mixer. The mixer thoroughly mixes these precursors and feeds the resulting resin to the printheads. The inkjet printer may include a cleaning system that removes residual resin during or after printing.

A high-pressure mixing apparatus for polymeric components suitable for providing a reactive mixture for a polymerizable resin, provided with a self-regenerating seal. An annular sealing element is housed in a circular seat inside a cross hole of a bush transversely extending to and in communication with the mixing chamber, in a sealing zone downstream the injection holes for the polymeric components, between the mixing chamber and the same delivery bush; worn and/or torn parts of the annular sealing element are automatically regenerated by the reactive mixture delivered during operation of the mixing apparatus.

A device for producing a multicomponent mixture having a mixing chamber which is surrounded by a chamber wall, the device further includes an outlet for a multicomponent mixture and into which at least two component valves and at least one flushing valve open, the flushing valve being in connection on the inlet side with a temperature control channel system which is associated with the chamber wall and through which water can flow.

A spray gun for a plural component system is provided. The spray gun includes a first component delivery line and a second component delivery line. The spray gun also includes a nozzle, configured to receive and mix a first component received from the first component delivery line with a second component received from the second component delivery line. The spray gun also includes an air purge system configured to, when the spray gun is in a non-actuated position, purge the nozzle of the first and second components and, when the spray gun is in an actuated position, aid in atomization of the mixture of the first and second components.

A flexible discontinuous process produces a series of at least two articles containing thermally insulating polyurethane foam from at least three streams (A), (B) and (C). The process involves mixing the at least three streams with different mixing ratios and injecting the mixture into cavities of the articles. A production unit can be used for performing this process.

A mixing module includes two inlets, an integrator, and a valve member. The integrator has two chambers each having a near end and a far end, and the valve member is movable between two positions. One of the inlets is connected to the near end of one of the chambers and the other inlet is connected to the near end of the other chamber when the valve is in one position. When the valve is in the other position, one of the inlets is disconnected from the chambers and the near ends of the chambers are connected.

A mixing machine (1) for the mixing of a homogeneous mixture with one or more components to obtain a viscous mixture, comprising a mixing chamber (2) which is divided in a push (A), a mixing (B) and a discharge zone (C), and wherein the mixing chamber (2) comprises the following parts: multiple walls, consisting of one or more top plates (22) with multiple inflow channels (10, 11, 12), one or more bottom plates (24) and multiple side walls (6); an outlet mouth (18); an outlet valve (13); several rotors (5); in and out sliding push and/or mixing blades (3, 4); and a self-cleaning system (16, 17); characterised in that the rotors (5) are integrated in the side walls (6) of the mixing chamber (2); the rotors are equipped with transit channels (30) for the in and out sliding push or mixing blades (3, 4); and the self-cleaning system comprises a cleaning plate (16) and a driving mechanism (17) wherein the cleaning plate (16) can move longitudinally through the mixing chamber (2).

A latex processing system and method involves mixing a latex and at least one solvent blend in an extruder, in order to remove resin found in the latex and to coagulate the latex to form a coagulum. The at least one solvent blend has a first solvent configured to coagulate the latex, and a second solvent configured to swell the resulting coagulum. In particular, a series of the solvent blends may be used at different locations along a length of the extruder, and may further include distinct blends of the first solvent and the second solvent, introduced at the different locations, and having different ratios of the first solvent and the second solvent.