Process for producing a polymer composition, a polymer composition obtainable by said process and the use of said polymer composition as adhesive polymer composition and for the production of a multilayer structure, such as a three-layer metal pipe coating, with improved peel strength.

In a method for reprocessing film waste material, the film waste material is comminuted into recycling material by means of a comminuting device. The recycling material is fed by means of a feeding device in a multi-shaft screw machine. In the multi-shaft screw machine, the recycling material is plasticized into a material melt and processed into raw material. The raw material may again be fed to a production installation for the production of films.

Disclosed is an asymmetric co-rotating multi-screw extrusion device, an extruder, and a processing method thereof. The barrel is provided with a feed port located at one end of the screw mechanism and a discharge port located at the other end of the screw mechanism, and the barrel comprises a conveying section, a melting section, an exhaust section, and a mixing extrusion section sequentially arranged from a side thereof where the feed port is located, wherein the exhaust section is provided with an exhaust hole. The screw mechanism comprises at least a first screw and a second screw arranged parallel to the first screw, wherein at least one of the first screw and the second screw has a cross-sectional profile comprising an arc forming a radial step between a root and a crest thereof, and the first screw and the second screw are asymmetrically inter-meshed and co-rotated at the same speed.

Disclosed is an asymmetric co-rotating multi-screw extrusion device, an extruder, and a processing method thereof. The barrel is provided with a feed port located at one end of the screw mechanism and a discharge port located at the other end of the screw mechanism, and the barrel comprises a conveying section, a melting section, an exhaust section, and a mixing extrusion section sequentially arranged from a side thereof where the feed port is located, wherein the exhaust section is provided with an exhaust hole. The screw mechanism comprises at least a first screw and a second screw arranged parallel to the first screw, wherein at least one of the first screw and the second screw has a cross-sectional profile comprising an arc forming a radial step between a root and a crest thereof, and the first screw and the second screw are asymmetrically inter-meshed and co-rotated at the same speed.

A method of preparing a nanocomposite fiber comprising suspending carbon powder comprising graphene flakes in a carrier fluid. A solid polymer material is added to the carrier fluid having the carbon powder suspended therein to create a mixture. The mixture is heated and the solid polymer material is at least partially dissolved within the carrier fluid having the carbon powder suspended therein. The carrier fluid is removed from the mixture, forming the polymer into a fiber carrying the graphene flakes.

The present invention relates to a multishaft extruder having screw shafts that rotate in the same sense and at the same speed, wherein these screw shafts each have at least one region having a special arrangement of screw elements, wherein the screw elements have an asymmetrical cross-sectional screw profile. In this case, these in each case at least one regions are situated directly opposite on directly adjacent screw shafts. The present invention also provides for the use of the extruder of the invention for processing or production of plastic or viscoelastic masses.

The present invention relates to a multishaft extruder having screw shafts that rotate in the same sense and at the same speed, wherein these screw shafts each have at least one region having a special arrangement of screw elements, wherein the screw elements have an asymmetrical cross-sectional screw profile. In this case, these in each case at least one regions are situated directly opposite on directly adjacent screw shafts. The present invention also provides for the use of the extruder of the invention for processing or production of plastic or viscoelastic masses.

A fractional lobe processor is disclosed. The fractional lobe processor comprises an intake zone comprising at least one deep flighted shovel element on each intermeshing screw for receiving a input blend comprising an active substance and an excipient; a granulation zone consisting of only fractional lobe elements, and having a provision for introducing moisture or a binder solution, for granulating the active substance and the excipient; an optional, drying zone for drying the wet granules; and a discharge zone for discharging the granules; wherein the granulation zone is located before the discharge zone and after the intake zone; wherein the drying zone has one or more fractional lobe elements on each shaft; and wherein the granulation zone has a plurality of fractional lobe elements on each shaft.

A fractional lobe processor is disclosed. The fractional lobe processor comprises an intake zone comprising at least one deep flighted shovel element on each intermeshing screw for receiving a input blend comprising an active substance and an excipient; a granulation zone consisting of only fractional lobe elements, and having a provision for introducing moisture or a binder solution, for granulating the active substance and the excipient; an optional, drying zone for drying the wet granules; and a discharge zone for discharging the granules; wherein the granulation zone is located before the discharge zone and after the intake zone; wherein the drying zone has one or more fractional lobe elements on each shaft; and wherein the granulation zone has a plurality of fractional lobe elements on each shaft.

Methods for granulating powder in a single piece of equipment include at least the following: (a) continuously introducing the powder and a granulating fluid to the single piece of equipment; (b) passing the powder and the granulating fluid through a granulating zone of the single piece of equipment to form wet granules; (c) passing the wet granules through a drying zone of the single piece of equipment; (d) optionally passing granules through a discharge zone of the single piece of equipment; and (e) continuously discharging the granules from the single piece of equipment where the single piece of equipment is not a fluid bed processor.