A high pressure polymerization to form an ethylene-based polymer, the process comprising the following: polymerizing a reaction mixture comprising ethylene, using a reactor system comprising at least three ethylene-based feed streams and a reactor configuration that comprises at least four reaction zones.

A high pressure polymerization to form an ethylene-based polymer, the process comprising the following: polymerizing a reaction mixture comprising ethylene, using a reactor system comprising at least three ethylene-based feed streams and a reactor configuration that comprises at least four reaction zones.

A component for a vehicle wash system includes a rotatable stem portion and a backing member in communication with the rotatable stem portion. The backing member is configured to rotate with the stem portion about an axis of rotation defined by the centerline of the stem portion. A plurality of media elements are secured to the backing member with the plurality of media elements being constructed of a generally self-supporting, non-marring material and wherein the plurality of media elements are oriented generally perpendicular to the backing member. The plurality of media elements configured to rotate in a working plane defined by the backing member and the working plane is oriented generally perpendicularly to the axis of rotation. Additionally, the plurality of media elements are configured during a wash process to contact at least an exterior painted surface of a vehicle to effectuate cleaning thereof.

A component for a vehicle wash system includes a rotatable stem portion and a backing member in communication with the rotatable stem portion. The backing member is configured to rotate with the stem portion about an axis of rotation defined by the centerline of the stem portion. A plurality of media elements are secured to the backing member with the plurality of media elements being constructed of a generally self-supporting, non-marring material and wherein the plurality of media elements are oriented generally perpendicular to the backing member. The plurality of media elements configured to rotate in a working plane defined by the backing member and the working plane is oriented generally perpendicularly to the axis of rotation. Additionally, the plurality of media elements are configured during a wash process to contact at least an exterior painted surface of a vehicle to effectuate cleaning thereof.

A method of delivering a glutinous substance to a workpiece from an end-effector comprises using the end-effector to rotate a brush relative to the workpiece about a rotational axis. The method also comprises, while rotating the brush relative to the workpiece about the rotational axis, urging the glutinous substance from the end-effector through a channel of a body of the brush from an axial inlet of the channel to an outlet of the channel, into contact with a thatch of bristles of the brush. Additionally, the method comprises using the end-effector to position the brush relative to the workpiece such that the glutinous substance in contact with the thatch is delivered onto at least a first surface and a third surface of the workpiece.

A method of delivering a glutinous substance to a workpiece from an end-effector comprises using the end-effector to rotate a brush relative to the workpiece about a rotational axis. The method also comprises, while rotating the brush relative to the workpiece about the rotational axis, urging the glutinous substance from the end-effector through a channel of a body of the brush from an axial inlet of the channel to an outlet of the channel, into contact with a thatch of bristles of the brush. Additionally, the method comprises using the end-effector to position the brush relative to the workpiece such that the glutinous substance in contact with the thatch is delivered onto at least a first surface and a third surface of the workpiece.

A method of manipulating a brush relative to a brush-arm assembly of an end-effector comprises locating a carriage in one of a first position or a second position relative to a stationary component. The method also comprises, with the carriage in one of the first position or the second position, different from the first position, relative to the stationary component, locating the brush-arm assembly of the end-effector with respect to the stationary component so that the brush-arm assembly is in contact with the stationary component. The method further comprises moving the carriage in a second direction toward the stationary component, from the first position to a third position, to load the brush onto the brush-arm assembly, or moving the carriage in a first direction away from the stationary component from the second position to the first position to unload the brush from the brush-arm assembly.

A method of manipulating a brush relative to a brush-arm assembly of an end-effector comprises locating a carriage in one of a first position or a second position relative to a stationary component. The method also comprises, with the carriage in one of the first position or the second position, different from the first position, relative to the stationary component, locating the brush-arm assembly of the end-effector with respect to the stationary component so that the brush-arm assembly is in contact with the stationary component. The method further comprises moving the carriage in a second direction toward the stationary component, from the first position to a third position, to load the brush onto the brush-arm assembly, or moving the carriage in a first direction away from the stationary component from the second position to the first position to unload the brush from the brush-arm assembly.

A high pressure polymerization, as described herein, to form an ethylene-based polymer, comprising the following steps: polymerizing a reaction mixture comprising ethylene, using a reactor system comprising at least three ethylene-based feed streams and a reactor configuration that comprises at least four reaction zones, and at least one of the following a) through c), is met: (a) up to 100 wt % of the ethylene stream to the first zone comes from a high pressure recycle, and/or up to 100 wt % of the last ethylene stream to a zone comes from the output from a Primary compressor system; and/or (b) up to 100 wt % of the ethylene stream to first zone comes from the output from a Primary compressor system, and/or up to 100 wt % of the last ethylene stream to a zone comes from a high pressure recycle; and/or (c) the ethylene stream to the first zone, and/or the last ethylene stream to a zone, each comprises a controlled composition; and wherein each ethylene stream to a zone receives an output from two or more cylinders of the last compressor stage of a Hyper compressor system.

A high pressure polymerization, as described herein, to form an ethylene-based polymer, comprising the following steps: polymerizing a reaction mixture comprising ethylene, using a reactor system comprising at least three ethylene-based feed streams and a reactor configuration that comprises at least four reaction zones, and at least one of the following a) through c), is met: (a) up to 100 wt % of the ethylene stream to the first zone comes from a high pressure recycle, and/or up to 100 wt % of the last ethylene stream to a zone comes from the output from a Primary compressor system; and/or (b) up to 100 wt % of the ethylene stream to first zone comes from the output from a Primary compressor system, and/or up to 100 wt % of the last ethylene stream to a zone comes from a high pressure recycle; and/or (c) the ethylene stream to the first zone, and/or the last ethylene stream to a zone, each comprises a controlled composition; and wherein each ethylene stream to a zone receives an output from two or more cylinders of the last compressor stage of a Hyper compressor system.