A method includes feeding a heated polymer additive at a first temperature into a continuous mixer at a first feed rate. The method includes feeding a heated abrasive solid material at a second temperature into the continuous mixer at a second feed rate. The heated abrasive solid material and the heated polymer additive are mixed in the continuous mixer to form a first mixture.

A method includes feeding a heated polymer additive at a first temperature into a continuous mixer at a first feed rate. The method includes feeding a heated abrasive solid material at a second temperature into the continuous mixer at a second feed rate. The heated abrasive solid material and the heated polymer additive are mixed in the continuous mixer to form a first mixture.

An electrically conductive thermoplastic composition comprised of at least one thermoplastic polycarbonate/acrylonitrile-butadiene-styrene (PC/ABS) polymer, at least one electrically conductive material containing carbon nanostructures or nanomaterials, and optionally at least one ethylene/alkyl-(meth)acrylate copolymer. The conductive thermoplastic composition can be injection molded and/or printable using additive manufacturing techniques.

A roll mill for super absorbent polymer that grinds introduced super absorbent polymer particles and discharges them. The roll mill for super absorbent polymer includes at least one pair of rollers that have plural corrugations formed on each outer perimeter surface of the roller, and are arranged parallel to each other while being spaced by a roll gap, and the number of corrugations per unit circumference of the roller may be 0.89/mm?1.15/mm. Also disclosed is a method for preparing super absorbent polymer using the roll mill.

A kneading adjustment mechanism 80 includes a pair of movable members 81 and 82 each having a flow path forming surface 85 constituting a part of a flow path 20 through which kneaded molten resin is conveyed and a screw 84 arranged between the flow path forming surfaces 85 of the respective movable members 81 and 82. At least one of the pair of movable members 81 and 82 can operate such that a gap between the flow path forming surface 85 and the screw 84 increases or decreases, and at least one or a plurality of protrusions 86 is provided on an outer periphery of the screw 84.

The present invention provides an apparatus for use in mixing and dispensing a curable fluid stream (stream) into an open mold to fill the mold to make polishing pads for chemical mechanical planarization of substrates. The apparatus comprises an actuator frame on which is mounted (i) a set of two plates releasably attached to the actuator frame and adapted to cut the stream when the mold is full and to release from the actuator frame after cutting the stream, and (ii) a dispenser unit for continuous pouring of the stream into an open mold, the apparatus adapted to enable removal of the released plates from the actuator during the continuous pouring after the mold is full, e.g. by raising the actuator frame and the (ii) dispenser unit, whereby one can place a container above the mold to catch the plates.

The present invention provides an apparatus for use in mixing and dispensing a curable fluid stream (stream) into an open mold to fill the mold to make polishing pads for chemical mechanical planarization of substrates. The apparatus comprises an actuator frame on which is mounted (i) a set of two plates releasably attached to the actuator frame and adapted to cut the stream when the mold is full and to release from the actuator frame after cutting the stream, and (ii) a dispenser unit for continuous pouring of the stream into an open mold, the apparatus adapted to enable removal of the released plates from the actuator during the continuous pouring after the mold is full, e.g. by raising the actuator frame and the (ii) dispenser unit, whereby one can place a container above the mold to catch the plates.