The present invention relates to articles comprising a plurality of molded hollow parts (11) having different central axis (14, 15) through the hollow elements, further having passages in walls of the hollow parts transverse to the central axis of the hollow parts. The present invention also relates to methods applying two part curable materials to substrates using the molded parts of the invention as mixing elements.

A syringe for multi-component materials includes a mixer housing, a mixing element, a multi-component cartridge and a mixing head, the mixing head being arranged at least partly within the mixer housing and adjacent to the multi-component cartridge. The mixing head is arranged moveable in an axial direction of the syringe between at least two positions, the at least two positions including a sealed position and a dispensing position. The axial movement of the mixing head is brought about by rotation of at least a part of the mixer housing relative to the multi-component cartridge. The mixing head is axially displaced in a direction opposite to a dispensing direction on a displacement of the mixing head from the sealed position into the dispensing position.

Adapter (130, 430, 500, 600, 700)s for mixing devices are provided. The adapter (130, 430, 500, 600, 700) connects to a fluid delivery component (110, 310, 410) at the first end (132, 332, 432, 532, 612A, 612B, 632, 732) to receive multiple fluid feeding materials and connects to a mixer tip (120, 320, 420, 820) at the second end (134, 334, 434, 634, 734) to deliver the feeding materials.

The invention relates to a device for preparing and applying adhesive, comprising a feed unit, a preparing unit, and an application unit, wherein the feed unit is used to feed a basic component of the adhesive and/or of at least one additive, wherein the preparing unit effects continuous mixing of the basic component of the adhesive with the one or more fed additives to form the prepared adhesive and continuous conveying of the prepared adhesive, wherein the adhesive prepared in such a way is conveyed from the preparing unit into the application unit and can be applied to a workpiece by the application unit.

The present invention relates to a static mixer for mixing together at least two components. The static mixer comprises a mixer housing; a mixing element having an upstream end with at least two entry openings and a downstream end, the mixing element being arranged at least partly within the mixer housing; a mixing head having at least two inlets provided at an input side and at least two outlets provided at an output surface, wherein each of the at least two inlets is in fluid communication with one of the at least two outlets; and a separating wall disposed between the output surface and the upstream end of the mixing element for separating the components leaving the outlets.

The separating wall comprises a free downstream edge which is disposed with respect to at least one of the entry openings so as to allow at least partial flows of the components separated by the separating wall to combine after exceeding the downstream edge and to jointly enter said at least one of the entry openings.

A mixer for mixing two materials includes a casing and a mixing component. The mixing component has a first vertical wall, a second vertical wall in parallel to the first vertical wall, an inlet baffle, an outlet baffle, a plurality of first arc shape guiding plates and a plurality of second arc shape guiding plates. The inlet baffle and the outlet baffle are disposed on the two ends of the first and second vertical walls, respectively. The first arc shape guiding plates and second arc shape guiding plates are disposed between the inlet and outlet baffles, and the first and second arc shape guiding plates are mutually spaced and disposed in opposite to each other. The two materials are imported from the inlet baffle and guided to flow through the first and second arc shape guiding plates, and subsequently mixed and exported from the outlet baffle.

A method of preparing a hot melt adhesive composition, comprising (A) feeding a polymer blend into an extruder; wherein the polymer blend comprises (a) a first propylene-based polymer, wherein the first propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a C.sub.4-C.sub.10 alpha-olefin; and (b) a second propylene-based polymer, wherein the second propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a C.sub.4-C.sub.10 alpha-olefin; wherein the second propylene-based polymer is different than the first propylene-based polymer and wherein the polymer blend has a melt viscosity of 1,000 cP to 20,000 cP at 190 C.; (B) feeding one or more adhesive components, selected from at least one of a tackifier, wax, antioxidant, functionalized polyolefin, oil, and combinations thereof, into the extruder; and (C) recovering an extrudate from the extruder, wherein the extrudate is a hot melt adhesive composition.

A mixing system mixes liquid adhesive and gas to create a solution. The mixing system it a manifold defining an adhesive input that receives the liquid adhesive, a gas input that receives the gas, a mixing chamber in fluid communication with the adhesive and gas inputs, an output that outputs the solution, and an output passage extending from the mixing chamber to the output. The mixing system also includes a rotor that rotates within the mixing chamber about a longitudinal axis so as to mix the solution, a motor that rotates the rotor, and a static mixer positioned within the output passage that statically mixes the solution flowing through the output passage.

Disclosed herein are devices for mixing liquids having a gradient or varying degrees of viscosity and methods of using the same.

The invention relates to a process for hot application of an adhesive composition (80) on a support (96), by means of a system comprising: a nozzle (50) for applying the adhesive composition (80), a line (88) for supplying the nozzle (50) with the adhesive composition (80) to be applied in fluid form, a mixer (30) positioned in the line (88) for the homogeneous mixture of the main components of the adhesive composition before its application; the applied adhesive composition (80) including as main components: a silylated prepolymer, a compatible tackifying resin; the adhesive composition comprising a cross-linking catalyst; the process comprising: supplying the line (88) with the silylated prepolymer separated from the cross-linking catalyst, the mixing of the cross-linking catalyst with the main components by means of the mixer (30), the hot application of the mixed adhesive composition (80) onto a support (96).