Abstract: A heat exchanger comprises a jacket element and an insert element. The jacket element is configured as a fluid channel for a fluid to be tempered. The insert element is arranged in the fluid channel. The insert element includes web elements which are connected to the jacket element at different locations. Some of the web elements contain web element channels which are fluidly connected with the jacket element, so that in the operating state, a heat transfer fluid which is supplied to the jacket element can flow through the web elements. The jacket element contains chambers for a heat transfer fluid. The chambers contain one inlet opening and one outlet opening for the heat transfer fluid. The inlet opening and the outlet opening of the chamber are connected to the web element channels of two web elements each, which belong to the same row of web elements.

Abstract: A method for producing a foamed extrudate comprises a device containing a main melting device and an auxiliary melting device. A first melt is generated in the main melting device, a second melt is generated in the auxiliary melting device from a meltable starting material. At least one reactive additive is added to the meltable starting material, wherein the at least one reactive additive being selected from the group consisting of a chemical blowing agent and an active nucleating agent is mixed in the auxiliary melting device with the second melt, so that an additive-containing second melt is obtained in the auxiliary melting device which is added to the first melt.

Abstract: An annular nozzle contains a nozzle body, the nozzle body comprising at least one annular gap for the discharge of a film. The annular gap is laterally bounded by a stationary wall and a flexible lip. A plurality of threaded pins and a corresponding number of bolts are arranged in the nozzle body. Each of the threaded pins is rotatably mounted in a first bore in the nozzle body. Each of the bolts is slidably mounted in the nozzle body in a second bore in the nozzle body. The bolt is in contact with the flexible lip and the corresponding threaded pin so that a compressive force can be transferred from the threaded pin to the bolt and via the bolt to the flexible lip.

Abstract: The heat exchanger (1) contains a jacket element (2) and an insert element (3), wherein the insert element (3) is arranged in the operating state in the interior of the jacket element (2). The insert element has a longitudinal axis (4). The insert element (3) contains an insert jacket element (31) and a plurality of web elements (9, 10), the web elements (9, 10) having a first end (13) and a second end (14). The first end (13) and the second end (14) of each web element (9, 10) are connected to the insert jacket element (31) at different locations. At least a portion of the web elements (9, 10) includes web element channels (11, 12), the web element channels (11, 12) extending from the first end (13) of the web element (11) to the second end (14) of the web element (11). An intermediate jacket element (5) is arranged between the insert jacket element (31) and the jacket element (2).

Abstract: A heat exchanger comprises a jacket element and an insert element, the jacket element forming a fluid channel for a fluid to be tempered, a flowable medium or a fluid mixture. The insert element is arranged in the fluid channel. The insert element contains a plurality of web elements which are connected to the jacket element at different locations. At least some of the web elements contain web element passages which are in fluid-conducting connection with the jacket element so that, in the operating state, a heat transfer fluid which is fed to the jacket element can flow through the web elements, wherein the jacket element contains a plurality of chambers for a heat transfer fluid, wherein at least one of the chambers is disposed with a plurality of inlet openings and outlet openings for the heat transfer fluid.

Abstract: A mixer structure for a film die for a polymer melt includes multiple web elements. The web elements include a first web element and a second web element. The first web element and the second web element include at least an end, which is connected to a base. A film die includes a first tool element, a second tool element, and a flow channel for the polymer melt extending between the first tool element and the second tool element. The mixer structure is arranged in the flow channel. The mixer structure is held in at least one of the tool elements by a holding element.

Abstract: A device (4) for the manufacture of an annular extrudate comprises a jacket (2), a crosshead (1) arranged inside of the jacket. The jacket contains a melt passage, whereby the crosshead is arranged in the melt passage, such that the melt passage extends et least at the outlet of the device as an annular melt passage around the crosshead (1). An annular passage (5) is formed between the crosshead and the jacket. The annular passage contains a static mixer (3), whereby the crosshead is at least partially supported by the static mixer in the jacket. The static mixer comprises a plurality of inserts, whereby at least a portion of the inserts is connected to the crosshead and/or the jacket.

Abstract: The heat exchanger (1) contains a jacket element (2) and an insert element (3), wherein the insert element (3) is arranged in the operating state in the interior of the jacket element (2). The insert element has a longitudinal axis (4). The insert element (3) contains an insert jacket element (31) and a plurality of web elements (9, 10), the web elements (9, 10) having a first end (13) and a second end (14). The first end (13) and the second end (14) of each web element (9, 10) are connected to the insert jacket element (31) at different locations. At least a portion of the web elements (9, 10) includes web element channels (11, 12), the web element channels (11, 12) extending from the first end (13) of the web element (11) to the second end (14) of the web element (11). An intermediate jacket element (5) is arranged between the insert jacket element (31) and the jacket element (2).

Abstract: A method for the manufacture of a tube (10) containing a plastic material is proposed. The plastic material is melted in an extruder (3) so that a plastic melt is obtained, wherein the extruder (3) includes a passage (5). A conveyor (4) is arranged in the passage (5). The passage (5) has a first end (6), wherein the plastic material is introduced downstream of the first end (6) into the passage (5). The plastic material is conveyed through the passage (5, 35) and is converted into a plastic melt. The passage (5) has a second end (7), wherein the plastic melt is directed through the passage (5) into a forming tool (8). The tube (10) is produced by means of the forming tool (8), wherein the tube (10) leaves the passage (5) at the second end (7), wherein the tube (10) leaves the passage (5) on the second end (7).

Abstract: A mixer structure for a film die for a polymer melt includes multiple web elements. The web elements include a first web element and a second web element. The first web element and the second web element include at least an end, which is connected to a base. A film die includes a first tool element, a second tool element, and a flow channel for the polymer melt extending between the first tool element and the second tool element. The mixer structure is arranged in the flow channel. The mixer structure is held in at least one of the tool elements by a holding element.

Abstract: A device (1) for static mixing and heat exchange comprises a cladding element (2) and a mixer insert (3), whereby the mixer insert (3) is in the operative state arranged inside the cladding element (2). The mixer insert has a longitudinal axis and comprises a first group (5) of web elements and a second group (6) of web elements. The first group (5) of web elements extends along a first common group plane (7) and the second group (6) of web elements extends along a second common group plane (8). At least a portion of the web elements (9, 10) is provided with channels (11, 12). The channels extend from a first end (13) of the web element (11) to a second end (14) of the web element (11).

Abstract: A device (4) for the manufacture of an annular extrudate comprises a jacket (2), a crosshead (1) arranged inside of the jacket. The jacket contains a melt passage, whereby the crosshead is arranged in the melt passage, such that the melt passage extends et least at the outlet of the device as an annular melt passage around the crosshead (1). An annular passage (5) is formed between the crosshead and the jacket. The annular passage contains a static mixer (3), whereby the crosshead is at least partially supported by the static mixer in the jacket. The static mixer comprises a plurality of inserts, whereby at least a portion of the inserts is connected to the crosshead and/or the jacket.

Abstract: A method for manufacturing low density foams comprises the following steps. A polymeric material is melted in a first extruder (201) to a polymer melt, a blowing agent is added to the polymer melt, and a melt containing the blowing agent is obtained which is directed to a second extruder (211). Thereafter the melt containing the blowing agent is cooled in the second extruder (211), thereafter the melt is directed through a static mixer after leaving the second extruder (211), whereby the static mixer is disposed with a mixer insert (3), by which the temperature of the melt is homogenized over the entire cross-section, whereby the static mixer can be cooled and/or heated to obtain a temperature stabilized cooled melt. Subsequently the temperature stabilized cooled melt is discharged through a die element (240, 250).

Abstract: A device (1) for static mixing and heat exchange comprises a cladding element (2) and a mixer insert (3), whereby the mixer insert (3) is in the operative state arranged inside the cladding element (2). The mixer insert has a longitudinal axis and comprises a first group (5) of web elements and a second group (6) of web elements. The first group (5) of web elements extends along a first common group plane (7) and the second group (6) of web elements extends along a second common group plane (8). At least a portion of the web elements (9, 10) is provided with channels (11, 12). The channels extend from a first end (13) of the web element (11) to a second end (14) of the web element (11).

Abstract: The multicomponent cartridge has a container with chambers for the reception of different fluid components, a mixer element fixed on the container for the mixing of the components and a dispensing tube placed onto the mixer element and connected to the container for the dispensing of the mixed components. The mixer element is configured as a guide element for the axial displacement of the dispensing tube between an open position for dispensing of the mixed components and a closed position.

Abstract: The invention relates to a multicomponent foil-type container comprising a first chamber (5) for accommodating a first component, at least one second chamber (5?) for accommodating a second component, a discharge duct (6) that can be connected to said chambers (5, 5?), deflection elements (11) for mixing the components within the discharge duct (6), and a seal (12; 12?; 21; 25, 25?; 36, 36?) which prevents the components from being mixed before being used and can be opened for discharging the components. The deflection elements (11) of the inventive multicomponent foil-type container are disposed on a separate mixing element (9) that is located in the discharge duct (6) such that the multicomponent foil-type container is easy to produce while allowing different components to be mixed in a particularly effectively manner. The invention further relates to a device for squeezing a multicomponent foil-type container in a particularly effective fashion.

Abstract: The invention relates to a multicomponent foil-type container comprising a first chamber (5) for accommodating a first component, at least one second chamber (5?) for accommodating a second component, a discharge duct (6) that can be connected to said chambers (5, 5?), deflection elements (11) for mixing the components within the discharge duct (6), and a seal (12; 12?; 21; 25, 25?; 36, 36?) which prevents the components from being mixed before being used and can be opened for discharging the components. The deflection elements (11) of the inventive multicomponent foil-type container are disposed on a separate mixing element (9) that is located in the discharge duct (6) such that the multicomponent foil-type container is easy to produce while allowing different components to be mixed in a particularly effectively manner. The invention further relates to a device for squeezing a multicomponent foil-type container in a particularly effective fashion.

Abstract: The multicomponent cartridge has a container with chambers for the reception of different fluid components, a mixer element fixed on the container for the mixing of the components and a dispensing tube placed onto the mixer element and connected to the container for the dispensing of the mixed components. The mixer element is configured as a guide element for the axial displacement of the dispensing tube between an open position for dispensing of the mixed components and a closed position.

Abstract: The static mixer is used for a curing mixed product of flowable components that react to form a solidifying mass on mixing. The mixer has mixing chambers that are arranged behind one another and next to one another along a tube axis. Each mixing chamber is delineated by longitudinal walls oriented in the direction of the tube axis and by transverse walls standing transversely to the tube axis. Openings in the longitudinal walls and in the floor of each mixing chamber establish inlets and outlets for the mixed product. The corner of at least some of the mixing chambers upstream of an outlet in the longitudinal walls is filled in to form a concave surface for directing the flowable components towards the outlet. The transverse wall at an inlet to at least some of the mixing chambers is also formed with a concave surface for directing the flowable components through the inlet into the mixing chamber.

Abstract: The tube mixer includes a longitudinal built-in body (1) with which a laminar mixing process can be brought about in a medium (A, B) flowing through the mixer in a laminar manner. The tube mixer has a hybrid structure. At least two longitudinal sections (Q, X) are combined which have different mixer structures. A mix-resistant strand, which results in the laminar mixing process in the medium to be mixed, can be associated with a first section which has a first structure. A further mix-resistant strand can be associated with a second section which is adjacent to the first section and has a second structure. The mix-resistant strands are offset transversely with respect to one another at the transition between the two sections.