B29C48/395

Process for the preparation of a reinforced polyamide by extrusion

The present invention relates to a process for the production of a reinforced polyamide (rP) in an extruder. In this process, a first mixture (M1), a second mixture (M2) and a third mixture (M3) are added into the extruder, and subsequently at least one carbon material is added to obtain a carbon containing polymerizable mixture (cpM) in the extruder. This carbon containing polymerizable mixture (cpM) is polymerized and subsequently devolatilized to obtain the reinforced polyamide (rP). Furthermore, the present invention relates to the reinforced polyamide (rP) obtainable by the inventive process.

Single-shaft extruder and use of a single-shaft extruder, and method for altering morphology of a superabsorbent polymer gel using a single-shaft extruder

A single-screw extruder for changing a morphology of a superabsorbent polymer, specifically a polymer gel. The single-screw extruder has an input aperture, a channel, a screw and an output aperture. The screw has a pitch value of a pitch of the screw flights along the conveying zone of the channel, where the channel has a mixing-element arrangement with at least one mixing element which protrudes into the channel of the single-screw extruder and which is configured for the mixing of the SAP polymer gel.

MIXING AND EXTRUSION MACHINE WITH SELF-CLEANING TWIN SCREW AND METHOD OF USE
20220258379 · 2022-08-18 ·

A mixing and extrusion machine (10) for the manufacture of rubber mixtures has a mixer with a converging conical twin screw (12) with a fixed frame (14) that supports sleeves (16). Two screws (18), being mounted at an angle, are mounted in the mixer (12) so as to move in translational movement between an opening (22) arranged upstream and an outlet (25) arranged downstream of the sleeves, so that the thread tips of each screw contact tangentially the surfaces of the opposite screw so that the screws remain substantially in contact with each other when the screws rotate at an angle and at a center distance that facilitates self-cleaning. The screw threads maintain tangential contact with the inner surfaces of the sleeves, thus preventing the retention of mixing material on these surfaces.

Vapor-permeable, substantially water-impermeable multilayer article
11383504 · 2022-07-12 · ·

This disclosure relates to an article that includes a nonwoven substrate, a first film supported by the nonwoven substrate, and a second film such that the first film is between the nonwoven substrate and the second film. The first film includes a first polymer and a pore-forming filler. The difference between a surface energy of the first film and a surface energy of the nonwoven substrate is at most about 10 mN/m. The second film includes a second polymer capable of absorbing and desorbing moisture and providing a barrier to aqueous fluids.

Vapor-permeable, substantially water-impermeable multilayer article
11383504 · 2022-07-12 · ·

This disclosure relates to an article that includes a nonwoven substrate, a first film supported by the nonwoven substrate, and a second film such that the first film is between the nonwoven substrate and the second film. The first film includes a first polymer and a pore-forming filler. The difference between a surface energy of the first film and a surface energy of the nonwoven substrate is at most about 10 mN/m. The second film includes a second polymer capable of absorbing and desorbing moisture and providing a barrier to aqueous fluids.

Extruder screw passages, extruder and extrusion method

An extruder screw includes a screw body. The screw body is rotated about an axis parallel to a direction of conveyance of a raw material. A conveyance portion having a flight is provided on the outer peripheral surface of the screw body. The flight is configured to convey the raw material along the axis of the screw body when the screw body is rotated. A passage for permitting the raw material fed by the flight to pass therethrough to the outer peripheral surface of the screw body is provided in the screw body in a position deviated from the axis of the screw body.

Dispensing Systems And Methods Including Online Remixing Of Thermal Management And/Or EMI Mitigation Materials
20220250302 · 2022-08-11 ·

Exemplary embodiments are disclosed of systems and methods for dispensing thermal management and/or EMI mitigation materials. The system and methods include online remixing prior to dispensing the thermal management and/or EMI mitigation materials. In an exemplary embodiment, a system includes an online remixer configured to be operable for receiving a supply of the thermal management and/or EMI mitigation material including one or more functional fillers within the matrix, and remixing the one or more functional fillers including filler settlement, if any, within the matrix prior to dispensement of the thermal management and/or EMI mitigation. The remixing may reduce the filler settlement, if any, within the matrix and thereby allow for improved viscosity and flow rate of the thermal management and/or EMI mitigation material.

MIXING DEVICE
20220242030 · 2022-08-04 ·

A mixing device includes a base, a side tube and a primary extruder screw. The base includes an upper case body and a lower case body cooperating with each other to define an accommodating space. The upper case body has a first inlet and a second inlet communicating with the accommodating space and adapted respectively for passage of two materials into the accommodating space therethrough. The lower case body has a third inlet communicating with the accommodating space. The side tube cooperates with the third inlet to be adapted for passage of elastic fillers into the accommodating space therethrough. The primary extruder screw is operable for mixing the elastic fillers with a reaction product made by the two materials to form a molding material.

MIXING DEVICE
20220242030 · 2022-08-04 ·

A mixing device includes a base, a side tube and a primary extruder screw. The base includes an upper case body and a lower case body cooperating with each other to define an accommodating space. The upper case body has a first inlet and a second inlet communicating with the accommodating space and adapted respectively for passage of two materials into the accommodating space therethrough. The lower case body has a third inlet communicating with the accommodating space. The side tube cooperates with the third inlet to be adapted for passage of elastic fillers into the accommodating space therethrough. The primary extruder screw is operable for mixing the elastic fillers with a reaction product made by the two materials to form a molding material.

THERMAL DECOMPOSITION TREATMENT APPARATUS AND THERMAL DECOMPOSITION TREATMENT METHOD

There is provided with a thermal decomposition treatment apparatus capable of thermally decomposing a resin under an appropriate thermal decomposition condition. The thermal decomposition treatment apparatus comprises: a thermal decomposition treatment unit configured to thermally decompose a recycled material containing a resin; a detection unit configured to detect an impurity in the recycled material to be introduced into the thermal decomposition treatment unit; and a determination unit configured to determine a condition related to an introduction amount of a virgin material of the resin to be introduced, together with the recycled material, into the thermal decomposition treatment unit, based on a detection result of the detection unit.