A nozzle device for producing a random-laid fiber product including a melt nozzle having an arrangement of a plurality of melt channels. The nozzle device including a gas channel having an opening which is associated with a plurality of melt channels of the arrangement, wherein the gas channel is designed to produce a gas emission which the melt emitted from the melt channels collects. The melt nozzle including an arrangement of capillary tubes in order to form the melt channels. A method for producing a nozzle device including providing of a nozzle body having one or more receiving channels and the arranging and fastening of capillary tubes in the one or more receiving channels.

Provided are a liquid crystal polymer film including a liquid crystal polymer, in which a melting point is 315° C. or higher and a number-average molecular weight is 13,000 or more and 150,000 or less; a flexible copper-clad laminated board; and a manufacturing method of a liquid crystal polymer film.

The invention relates to a process for preparing a biaxially oriented film, comprising the following steps: a) Melting a composition comprising at least 50 wt % with respect to the total amount of the composition of a copolyamide comprising: i. At least 75 wt % monomeric units derived from caprolactam, and further monomeric units derived from diamines X and/or diacids Y and/or aminoacids Z in a summed amount of between 0.2 to 25 wt %; or ii. At least 75 wt % monomeric units derived from hexamethylene diamine and adipic acid, and further monomeric units derived from diamines X and/or diacids Y and/or aminoacids Z in a summed amount of between 0.2 to 25 wt %; into a polymer melt; b) Casting the polymer melt through a planar die to form a film of at least one layer and subsequently quenching the film to a temperature of below Tg of the copolyamide; c) Stretching the film obtained after quenching in a direction parallel to the machine (MD-stretching) with a factor of at least 2 at a temperature of at least Tg of the copolyamide; d) Stretching the film obtained after MD stretching in a direction transversal to the machine (TD-stretching) with a factor of at least 2 at a temperature of at least Tg+10° C. of the copolyamide; e) Cooling the obtained film after TD-stretching; f) Heat setting the film obtained after cooling, at a temperature of between Tm−70° C. and Tm of the copolyamide; in which Tg and Tm of the copolyamide are determined as described by ASTM D3418-03. The invention also relates to a biaxially oriented film and food packaging obtainable by this process.

Disclosed is a method for preparing a three-layer-co-extruded diaphragm of a lithium-ion battery, falling into lithium-ion battery diaphragm technical field. The annealing box used comprises: box body, motor and sealing over, with uniformly-arranged heating plates fixedly connected to inner surface of the box body, a driving shaft arranged horizontally within the box body in front-back direction, a first and second driven shafts arranged on the left and right sides of the driving shaft correspondingly within the box body, an interlayer film coiling connected between the driving shaft and the first driven shaft within the box body horizontally; a diaphragm coiling connected between the driving shaft and the second driven shaft within the box body slantwise. Controllable annealing temperature and insulation from external environment avoid influence of external environment on diaphragm and ensure uniform heating of diaphragm. It produces a diaphragm of stable quality and is convenient to be mass-produced.

Extruded seals including a sealing portion with a honeycomb profile and method for making extruded seals with honeycomb profiles. An extrusion tool is provided with a first and second plate connected together. The first plate has a plurality of pins, which are vented to form a honeycomb profile. The second plate has a profiled opening receiving the plurality of pins and forming the overall shape of the part, including the outermost surfaces of the part. The pins serve as mandrels for extruded molten material to flow around. Varying the pin configuration and dimensions changes the honeycomb profile. The honeycomb structure is provided in the sealing portion of the extrusion. The honeycomb profile is formed by itself, co-extruded with a rigid or semi-rigid structural member, or applied to the rigid or semi-rigid structural member after the structural member is formed.

Provided are a resin filler tube capable of facilitating manufacture and ensuring rigidity in a bent tube portion, and a manufacturing method thereof. A resin filler tube connects an oil filling port and a fuel tank and includes straight tube portions and bent tube portions. The bent tube portions include a bellows-shaped bent inner portion in which hill portions and valley portions are continuous, and a bent outer portion which is formed by a non-bellows-shaped smooth surface. The valley portion of the bent inner portion has a linear outer peripheral surface parallel to a center line of the bent tube portions in a state in which the bent tube portions are in a straight tubular shape, and the linear outer peripheral surface of the valley portions is formed in an entire circumferential range in which the hill portions are formed.

Discrete male touch fastener elements are molded of thermoplastic resin extending from a common, flexible base sheet, by introducing molten resin to a molding nip between two counter-rotating rolls consisting of a mold roll and a pressure roll arranged such that their rotation axes are parallel and together define a common plane containing each of the rotation axes. Solidified resin is stripped from molding cavities of the mold roll after the cavities have passed a rotating reaction roll forming a pressure nip with the mold roll. The reaction roll is spaced from the pressure roll by a distance less than an outer diameter of the mold roll, and the mold roll is simultaneously held against both the pressure roll and the reaction roll in a non-planar roll stack.

The film for glass lamination of the present disclosure comprises a polyvinyl acetal resin, a plasticizer, and a metal salt, wherein the film has an adhesion control effect of 8.5 kgf/cm.sup.2 or more per the metal salt in an amount of 10 ppm based on a total weight of the film.

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.

A die structure is provided. The die structure may have a die body, a mandrel having a magnet and/or one or more magnet assemblies, a first magnetic structure, a second magnetic structure and/or one or more magnetic structures. The first magnetic structure may be configured to apply a first magnetic force to the mandrel, in a first direction. The second magnetic structure may be configured to apply a second magnetic force to the mandrel, in a second direction opposite the first direction. The one or more magnetic structures may be configured to apply one or more magnetic forces to the mandrel. Application of the first magnetic force, the second magnetic force and/or the one or more magnetic forces to the mandrel supports the mandrel to be levitated within the die body and/or causes the mandrel to rotate and/or to maintain a position within the die body.