B29C48/14

LIGHTWEIGHT PLASTIC CONTAINER AND PREFORM
20210261284 · 2021-08-26 ·

A plastic container is provided that includes a hollow body portion including a lower supporting base portion; a sidewall portion extending upwardly from the base portion; and a neck portion extending upwardly from the sidewall portion. The neck portion includes a support flange having an upper and lower surface, at least one thread, and a dispensing opening at the top of the neck portion. In embodiments, a closure may be provided to form an assembly. In embodiments, the container may be comprised of PET, the weight of the neck portion from the lower surface of the support flange to a top of the dispensing opening may be 3.0 grams or less, and/or the vertical distance from the top of the dispensing opening to the lower surface of the support flange may be 0.580 inches or less. A preform and method for making a container are also disclosed.

Ultrasonic Device For A Polymer Extruder Machine

An ultrasonic device comprising a chamber (10) provided with an inlet bore (11), which receives a melted pressurized polymer, an outlet bore (12) and a sonotrode housing bore (13) through which a distal portion (21) of an ultrasonic head (20) is inserted into the chamber, wherein the distal portion is separated from the rest of the ultrasonic head by a first nodal plane (PN1) wherein there is a first surface (S1) in contact with a complementary surface of a ring seal (30) that closes the chamber, and wherein the ultrasonic head includes a second nodal plane (PN2) away from and parallel to the first nodal plane (PN1) coinciding with or adjacent to a second surface (S2) wherein an anchoring device (40) presses the ultrasonic head against the ring seal ensuring a tight closure.

Ultrasonic Device For A Polymer Extruder Machine

An ultrasonic device comprising a chamber (10) provided with an inlet bore (11), which receives a melted pressurized polymer, an outlet bore (12) and a sonotrode housing bore (13) through which a distal portion (21) of an ultrasonic head (20) is inserted into the chamber, wherein the distal portion is separated from the rest of the ultrasonic head by a first nodal plane (PN1) wherein there is a first surface (S1) in contact with a complementary surface of a ring seal (30) that closes the chamber, and wherein the ultrasonic head includes a second nodal plane (PN2) away from and parallel to the first nodal plane (PN1) coinciding with or adjacent to a second surface (S2) wherein an anchoring device (40) presses the ultrasonic head against the ring seal ensuring a tight closure.

Increased rubber-to-nylon adhesion by ozone treatment
11104052 · 2021-08-31 · ·

An arrangement includes an extruder crosshead, and an innermost rubber tube having an input portion a resident portion residing in the extruder crosshead, and an output portion. The arrangement further includes an ozone stream evolved from an ozone source, where the ozone stream is introduced into an ozone cavity of the extruder crosshead, and a continuous molten barrier forming material which is movable through a flow cavity in the extruder crosshead. A portion of the continuous molten barrier forming material which is emitted from the extruder crosshead is exposed to the ozone stream on an inner side of the portion to provide a heterogeneous surfaced barrier layer. The arrangement also includes a barrier coated rubber tube including the heterogeneous surfaced barrier layer and the output portion of the innermost rubber tube, where the heterogeneous surfaced barrier layer is disposed outward from the output portion of the innermost rubber tube.

Polysaccharide fibers and method for producing same

The present invention relates to a direct dissolving process for the production of polysaccharide fibers which contain α(1.fwdarw.3)-glucan as a fiber-forming substance, with aqueous sodium hydroxide solution as a solvent, as well as to the fibers made thereby, and to their use.

DIE COMPRISING METAL PRINTED PARTS FOR THE EXTRUSION OF MOULDED BODIES

The invention relates to a die (10) for the extrusion of catalyst molding, catalyst support molding, or adsorbent molding (60) in flow direction (32) of an extrudable composition from an entry side (12) to a discharge side (14) of the die comprising a shell (56) and comprising one or more channel-formers (18) which are displacers of the extrudable composition and which extend in flow direction of the extrudable composition, wherein the channel-formers (18) have been metal-printed.

It is preferable that this is free from cavities for receiving extrudable composition which extend at right angles to the flow direction (32) of the extrudable composition, and that this is free from connections running at right angles from channel-formers (18) to the interior side wall (22) of the die (10).

The invention further relates to a process for the production, by means of 3D metal printing, of a metal-printed die (10) for the extrusion of catalyst moldings/support moldings (60).

DEVICE AND METHOD FOR EXTRUDING PLASTIC
20210094217 · 2021-04-01 ·

A device and a method for extruding plastics, comprising an extruder screw, a housing with a cavity, a drive unit for rotatably driving the extruder screw, a heating element arranged on the housing alongside the extruder screw, a filling unit through which shredded plastic can be supplied into the cavity, and a filler metering device. Upon rotation, the extruder screw conveys the shredded plastic in the transport direction along a longitudinal axis of the extruder screw. The housing has a feeding port for the filler opening into the cavity, wherein the filler metering device is connected to the feeding port and is designed for supplying a filler dispersed in a gas stream into the cavity.

Systems and methods for producing carbon nanostructures and ultrathin aligned carbon wires with multilayer turbostratic graphene structure

Systems and methods are provided for fabricating carbon nanostructures by low voltage near-field electromechanical spinning (LV-NFEMS). Processes described herein can produce ˜2-5 nm carbon nanowires with ultrahigh electrical conductivity using top-down and controlled reductive techniques from a polymer. Configurations are also provided to allow for deposition control and fiber elongation/alignment. One embodiment uses a low voltage near-field electromechanical spinning process to produce a polymer fiber from a polymer solution. Another embodiment of the method uses pyrolysis to convert the produced polymer fiber into a ˜2-5 nm carbon nanowire. System configurations provide advancements in polymer droplet control and control of a sustained jet of polymer solution with the use low voltages. Systems and processes described herein can include use of an array of polymer precursor nanofibers suspended onto a silicon substrate and converted to carbon nanowires. In another embodiment, ultra-thin carbon fibers can be integrated onto a carbon electrode scaffold.

MULTILAYER FILM AND MOLDED BODY PROVIDED WITH SAME

A multilayer film and a decorative film, each of which is excellent in chipping resistance, exhibits favorable adhesive properties to a variety of resin materials, such as polypropylene and ABS, and a molded body provided with such a film. The multilayer film includes three layers of an impact absorption layer (a), a base material layer (b), and a pressure sensitive adhesive layer (c) disposed in this order, wherein a thermoplastic polymer composition constituting the impact absorption layer (a) is composed of at least one block copolymer containing a polymer block (X) containing a structural unit derived from an aromatic vinyl compound and a polymer block (Y) containing a structural unit derived from a conjugated diene compound, or a hydrogenated product thereof; and has a loss tangent (tan δ) at 11 Hz in a range of −50 to −20° C. of 3×10.sup.−2 or more.

MULTILAYER FILM AND MOLDED BODY PROVIDED WITH SAME

A multilayer film and a decorative film, each of which is excellent in chipping resistance, exhibits favorable adhesive properties to a variety of resin materials, such as polypropylene and ABS, and a molded body provided with such a film. The multilayer film includes three layers of an impact absorption layer (a), a base material layer (b), and a pressure sensitive adhesive layer (c) disposed in this order, wherein a thermoplastic polymer composition constituting the impact absorption layer (a) is composed of at least one block copolymer containing a polymer block (X) containing a structural unit derived from an aromatic vinyl compound and a polymer block (Y) containing a structural unit derived from a conjugated diene compound, or a hydrogenated product thereof; and has a loss tangent (tan δ) at 11 Hz in a range of −50 to −20° C. of 3×10.sup.−2 or more.