A three-dimensional printing system for preparing a three-dimensional object made at least partially of an expanded polymer includes a printing device configured to prepare an expandable polymer melt and deposit a strand of expandable, expanding or expanded polymer onto a surface and a three-dimensional movement device for to enable depositing of the strand of expandable, expanding or expanded polymer at a predetermined time at a precise position within the three-dimensional matrix. The printing device includes a feed section at an upstream end of the printing device, a heating section, a pressurizing section, a blowing agent supply line, a mixing section, a cooling section and a terminal printing head section at a downstream end of the printing device including a die configured to deposit the strand of the expandable, expanding or expanded polymer onto the surface.

A fluid-flow-modification plate comprises a monolithic body, having an inlet-side surface, an outlet-side surface, a first passage, a second passage, a third passage, and a fourth passage. The first passage, second passage, third passage, and fourth passage each extend between the inlet-side surface and the outlet-side surface. The first passage and second passage intersect each other at a first intersection boundary. The third passage and fourth passage intersect each other at a second intersection boundary. The first passage and third passage do not intersect each other. The first passage and fourth passage do not intersect each other. The second passage and third passage do not intersect each other. The second passage and fourth passage do not intersect each other. The first-passage-inlet-opening perimeter boundary has single-point contact with the fourth-passage-inlet-opening perimeter boundary. The second-passage-outlet-opening perimeter boundary has single-point contact with the third-passage-outlet-opening perimeter boundary.

A fluid-flow-modification plate comprises a monolithic body, having an inlet-side surface and an outlet-side surface, a first passage, a second passage, a third passage, and a fourth passage. The first passage, the second passage, the third passage, and the fourth passage each extend between the inlet-side surface and the outlet-side surface. The first passage and the second passage intersect each other at a first intersection boundary. The third passage and the fourth passage intersect each other at a second intersection boundary. The first passage and the third passage do not intersect each other. The second passage and the fourth passage do not intersect each other. The first-passage-inlet-opening perimeter boundary has only two points of intersection with the fourth-passage-inlet-opening perimeter boundary. The second-passage-outlet-opening perimeter boundary has only two points of intersection with the third-passage-outlet-opening perimeter boundary.

An extrusion system including an extruder screw housed in a barrel, a nozzle heater coupled to the barrel, a printing nozzle coupled to the nozzle heater, and a randomizing element at least partially in the printing nozzle. The randomizing element is configured to randomize the orientation of fiber elements and/or fillers in an extrusion melt traveling through the extrusion system. Increasing the randomization of the fiber orientations in the melt composition improves the physical and thermal properties of a printed bead printed by the extrusion system.

An article includes a layer including a melt proces sable fluoropolymer, wherein the fluoropolymer includes a copolymer of a tetrafluoroethylene and a perfluoroether, wherein the article has an ultraviolet transmittance of at least about 50% at a thickness of about 0.040 inches to about 0.062 inches when exposed to ultraviolet radiation of about 200 nm to about 280 nm. Further provided is a method of making the article and an apparatus for purifying water including an article, such as a flexible tube.

A device for forming a plastic component, which device has a body which is suitable for use in a device for producing a plastic component from a first compound, and which is formed in such a way that, when used in the device for producing plastic components, by being guided past the body, the first compound is brought into a form which has at least one cavity which is continuous in the direction of the guiding past. The device additionally has a line system arranged in the body, through which a second compound can be expelled from an end of the body, in order to introduce a second compound into the cavity while the first compound is guided past the body.

A fluid-flow-modification plate comprises a monolithic body, having an inlet-side surface, an outlet-side surface, a first passage, a second passage, a third passage, and a fourth passage. The first passage, second passage, third passage, and fourth passage each extend between the inlet-side surface and the outlet-side surface. The first passage and second passage intersect each other at a first intersection boundary. The third passage and fourth passage intersect each other at a second intersection boundary. The first passage and third passage do not intersect each other. The first passage and fourth passage do not intersect each other. The second passage and third passage do not intersect each other. The second passage and fourth passage do not intersect each other. The first-passage-inlet-opening perimeter boundary has single-point contact with the fourth-passage-inlet-opening perimeter boundary. The second-passage-outlet-opening perimeter boundary has single-point contact with the third-passage-outlet-opening perimeter boundary.

A fluid-flow-modification plate (200) comprises a monolithic body (300), having an inlet-side surface (301) and an outlet-side surface (302), a first passage (501), a second passage (502), a third passage (503), and a fourth passage (504). The first passage (501), the second passage (502), the third passage (503), and the fourth passage (504) each extend between the inlet-side surface (301) and the outlet-side surface (302). The first passage (501) and the second passage (502) intersect each other at a first intersection boundary (530). The third passage (503) and the fourth passage (504) intersect each other at a second intersection boundary (531). The first passage (501) and the third passage (503) do not intersect each other. The second passage (502) and the fourth passage (504) do not intersect each other. The first-passage-inlet-opening perimeter boundary (311) has only two points of intersection with the fourth-passage-inlet-opening perimeter boundary (314). The second-passage-outlet-opening perimeter boundary (412) has only two points of intersection with the third-passage-outlet-opening perimeter boundary (413).

To provide a biaxially-stretched polyester film that can be used as a base film for vapor deposition, has excellent barrier properties, dimensional stability, processability, bag breakage resistance, and chemical resistance, and has less transfer of an extract to contents after retorting. A biaxially-stretched polyester film having features (a), (b), (c), and (d) below and having a thickness of 10 to 30 μm: (a) the biaxially-stretched polyester film is formed from a polyester resin composition containing a polybutylene terephthalate resin (A) in a range of 60% by mass or more; (b) a thermal shrinkage of the biaxially-stretched polyester film at 150° C. for 30 minutes is −2 to +2%; (c) thickness accuracy of the biaxially-stretched polyester film is 1 to 20%; and (d) a total amount of 1,4-butanediol and tetrahydrofuran volatilized during heating at a temperature of 135° C. for 60 minutes is not more than 2000 ppb.

A method of manufacturing bulked continuous carpet filament from polytrimethylene terephthalate (PTT) with polyethylene terephthalate (PET) comprises: (1) splitting the PTT stream extruded from the primary extruder into a number of polymer streams, each of the plurality of polymer streams having an associated spinning machine; (2) adding a colorant to each split polymer stream; (3) adding PET to the extruded polymer stream downstream of the primary extruder; (4) using one or more static mixing assemblies for each split polymer stream to substantially uniformly mix each split polymer stream and its respective colorant and PET; and (5) spinning each polymer stream with its substantially uniformly mixed colorant and any additives into BCF using the respective spinning machine.