The present rotary extruder includes: a rotor having a cylindrical surface centered on a rotor axis extending in a horizontal direction; and a casing having an inner peripheral surface that defines a bore, wherein: the casing defines an input port into which a resin material including a thermoplastic resin is fed, and a discharge port from which a plasticized molten resin is discharged; the cylindrical surface of the rotor and the inner peripheral surface of the casing are arranged eccentric with each other, thereby forming a gap whose cross section is crescent-shaped, extending in a rotation direction of the rotor from the input port to the discharge port between the inner peripheral surface and the cylindrical surface; and the input port is arranged at a top portion of the casing and the discharge port is arranged at a lower portion of the casing.

A thermoplastic resin composition according to the present invention contains carbon nanotubes and carbon fibers in amounts of 2.8 to 35 parts by mass and 1 to 60 parts by mass, respectively, relative to 100 parts by mass of a thermoplastic resin. In the thermoplastic resin composition, when the content of the carbon nanotubes is 2.8 to 5.3 parts by mass relative to 100 parts by mass of the thermoplastic resin, the content of the carbon fibers is at least 8.3 to 1 part by mass. In the thermoplastic resin composition, when the content of the carbon fibers is 1 to 8.3 parts by mass relative to 100 parts by mass of the thermoplastic resin, the content of the carbon nanotubes is at least 5.3 to 2.8 parts by mass.

A kneading apparatus (21) that makes it possible to easily obtain a kneaded material having a favorable property includes: a screw (23) for extruding polyethylene which has been fed through a feed opening (27); a first heater (24) for heating the polyethylene which is extruded by the screw (23); and a second heater (25) for preheating liquid paraffin which is to be added, through a side-feed opening (28), to the polyethylene which is extruded by the screw (23).

A method and configuration for automated operation of a two-roll mill. Also provided is a method for continuous or semi-continuous operation of a two-roll mill.

The invention relates to a roller (1) for use in a dry coating process to produce electrodes, comprising: a roller core (3) consisting of a core material; a roller shell (4) consisting of a shell material, the roller shell surrounding the roller core at least in sections; the shell material having a greater hardness than the core material; and the roller core including a device for tempering the roller shell.

A method and configuration for automated operation of a two-roll mill. Also provided is a method for continuous or semi-continuous operation of a two-roll mill.