B29B2009/168

A DRYING PROCESS FOR GRANULAR POLYMER MATERIAL AND A DRYING PLANT OPERATING ACCORDING TO THIS PROCESS
20240159461 · 2024-05-16 · ·

A drying plant (1) for granular polymer material based on polyethylene terephthalate (PET) comprises a hopper (2), which the granular polymer material is dried and a supply and recirculation circuit (10) for a process gas which is provided to dry the granular polymer material and comprising a catalysing group (25) which is configured to promote a decomposition reaction of contaminating substances which are present in the process gas and which are released from the granular polymer material in the hopper.

Process for obtaining low volatile plastomers

Process for reducing the volatile organic compound content of plastomer having a density of equal to or lower than 883 kg/m3 anda MFR2 of 100.0 g/10 min or lower (ISO 1133 at 2.16 kg load and 190? C.); to below 65 ppm (VOC, VDA277), the process comprising the steps of a) providing raw plastomer in granular form, the raw plastomer having a density of equal to or lower than 883 kg/m3; and a MFR2 of 100.0 g/10 min or lower (ISO 1133 at 2.16 kg load and 190? C.); and a volatile organic compound content (VOC, VDA277) of above 150 ppm, and the granules having an average D50 diameter of 2.5 to 4.5 mm b) subjecting said granular raw plastomer to at least one intensive hydrodynamic regime at a minimum temperature of at least 20? C. and a maximum temperature of 4? C. below the Vicat temperature (10 N, ISO 306) of the granular raw plastomer or 35? C., whatever value is lower, with the temperature measured at the gas inlet to the fast-fluidization regime, c) recovering the granular plastomer.

Resin Pellet Composition, Production Method Therefor, and Method for Producing Microporous Film

The present invention provides: a resin pellet composition excellent in terms of low-classification property, kneadability with liquid ingredients, and transportability; a method for producing the resin pellet composition; and a method for producing a microporous polyolefin film from the resin pellet composition. The resin pellet composition comprises first pellets, which comprise a polyolefin, and 0.1-99.0 mass % liquid component. The first pellets are porous objects, some of which contain some of the liquid component infiltrated thereinto. In another embodiment, the resin pellet composition includes second pellets, which include a polyolefin. The second pellets are non-porous objects each comprising a portion made of a resin comprising the polyolefin and a portion made of a liquid component. The mass of the liquid component present on the outer surfaces of the second pellets is 20 mass % or less with respect to the total mass of the second pellets.

Package for pellets of saponified ethylene-vinyl ester-based copolymer or resin composition thereof

The purpose of the invention is to provide: a package for EVOH resin pellets which is capable of providing the EVOH resin pellets almost free from powder even in a case where the package contains the powder generated therein during transportation or the like after shipment; and EVOH resin pellets contaminated with very small amount of the powder in a case where a user uses the EVOH resin pellets as a molding material. A package, where pellets each having a substantially circular or oval cross-section are packed in a packaging container whose inner surface has a surface resistivity of 1.010.sup.14 or more, is capable of providing pellets to which 0.8 wt % or less of powder adhered relative to the weight of the pellets.

Polymer powder and article made from the same
12005610 · 2024-06-11 · ·

A powder composition suitable for laser sintering for printing a three-dimensional object obtained by pre-heating a raw PEKK to evaporate a liquid solvent in the raw PEKK and the grinding the raw PEKK to form a PEKK powder, the powder composition having a first fraction comprising a polyetherketoneketone (PEKK) powder having a plurality of particles, the plurality of particles having a mean diameter D50 in the range of 30 ?m to 150 ?m. The plurality of particles of the first fraction are substantially non-spherical.

PROCESSOR AND A PROCESS FOR GRANULATION OF POWDERS

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.

METHOD AND DEVICE FOR THE PRODUCTION OF POLYAMIDE 6 PELLETS

A method and a device for the production of polyamide 6 pellets wherein an intermediate drying is not necessary and a combined pelletizing and extraction take place. Depending on the intended use, the pellets may directly be used or subjected to further treatment steps. A device for the production of polyamide 6 pellets includes a melt device for providing a melt of polyamide 6, an underwater pelletizing system which is operable under increased pressure, and a vertical vessel having a cylindrical section and a tapered bottom section. The tapered bottom section is provided with a cooling device and is connected to a pipe comprising a screw and/or a rotary gate valve for conveying pellets. The device includes a circuit for circulating an aqueous solution of ? caprolactam through the underwater pelletizing system and the vertical vessel.

SYSTEM FOR ANALYZING MATERIAL SYSTEMS

The invention relates to a system for analyzing material systems by which a product is achieved which is highly viscous or solid at ambient conditions, the system (1) comprising a processing unit (3) for processing the viscous medium and at least one feeding device (7; 9) for feeding starting materials into the processing unit (3), the feeding device (7; 9) being established such that the amount of the starting material or the starting material can be varied, and the processing unit (3) further comprises an outlet (13) which is connected to a device (15) for producing pellets or test specimens if the product is solid at ambient conditions or to a dosing pump for transferring the product into a collecting vessel if the product is highly viscous at ambient conditions

SYSTEM AND METHOD FOR RECOVERING PLASTIC RECYCLING MATERIAL
20240269896 · 2024-08-15 · ·

A recovery system for recovering plastic recycling material includes at least one rinsing chamber designed for heating and rinsing the plastic recycling material and having a rinsing air feed for feeding heated rinsing air into the at least one rinsing chamber; and at least one cooling chamber designed for cooling the plastic recycling material and having a cooling air feed for feeding cooling air into the at least one cooling chamber. The at least one cooling chamber is connected downstream of the at least one rinsing chamber and is fluid-connected to the rinsing air feed via an exhaust air line in such a manner that the exhaust air heated in the at least one cooling chamber by the plastic recycling material can be fed into the rinsing air feed of the at least one rinsing chamber. Use of such recovery system and method for recovering plastic recycling material.