76 results about "Spin casting" patented technology

An apparatus for producing a thermoplastic synthetic resin sheet or film has a casting mechanism having support rollers each mounted to undergo rotation about a corresponding rotational axis and one of which is mounted to undergo non-rotational displacement relative to the other support rollers. A casting sleeve is entrained around the support rollers for rotation therewith. A casting roller is mounted for undergoing rotation relative to the casting sleeve. A synthetic resin material is fed between opposite and confronting outer peripheral surfaces of the casting sleeve and the casting roller while rotating the casting sleeve and the casting roller and while effecting non-rotational displacement of one of the support rollers to holdingly press the synthetic resin material between the casting sleeve and the casting roller and thereby form the synthetic resin material into a thermoplastic synthetic resin sheet or film.

Provided herein are perovskite-polymer films, methods of forming polymer-perovskite films, and devices including polymer-perovskite films. The polymer-perovskite films may include a plurality of methylammonium lead chloride (CH3NH3PbCl3) nanopillar crystals embedded in a polymer matrix. The devices can be optoelectronic devices, such as light emitting diodes, which include polymer-perovskite films. The polymer-perovskite films of the devices can be hole transport layers in the devices. The methods of making films may include spin casting a precursor solution followed by thermal annealing.

For use in a rotational casting machine used for coating a rotating body with elastomer, such as polyurethane, there is provided a nozzle used for dispensing the liquid polyurethane onto the rotating body to be coated. The outlet of the nozzle is a narrow, elongated slit or opening. However, the interior passageway of the nozzle continually changes shape from the inlet to the outlet thereof, in order to ensure a constant cross-sectional area of the interior passageway along the length thereof, and in order to arrive at the desired narrow, elongated outlet-opening, whereby laminar flow of the liquid polyurethane is achieved with the concomitant reduced dwell-time of the liquid polyurethane therein, in order to reduce build up and clogging of the nozzle.

The invention discloses an automatic online drilling device for a rim. The automatic online drilling device for the rim comprises a rack, an air cylinder, a profiling drilling jig, drilling bushings, a servo electric cylinder, a drilling power drill bit and the like, wherein a sensor carries out locating on a wheel, the air cylinder drives a left clamping block to move rightwards through two guide rods and guide sleeves, the left clamping block tightly clamps the wheel together with a right clamping block, a drilling system gets close to the wheel through the servo electric cylinder, the profiling drilling jig can make good contact with the rim, then the servo electric cylinder continues moving to compress an upper spring and a lower spring, the drilling power drill bit can enter the drilling bushings, a drilling power head drives the drilling power drill bit to rotate at the moment, and drilling carried out on the rim of the wheel begins. When the automatic online drilling device for the rim is used, automatic drilling marking can be carried out on an X-ray waste product of the wheel, and the automatic online drilling device for the rim can adapt to a spin casting blank with the thick rim; due to the guiding function of the drilling bushings, the phenomenon that a drill bit is frequently broken when drilling is carried out on the cambered surface on the outer side of a rim can be effectively avoided.

Provided herein are perovskite-polymer films, methods of forming polymer-perovskite films, and devices including polymer-perovskite films. The polymer-perovskite films may include a plurality of methylammonium lead chloride (CH3NH3PbCl3) nanopillar crystals embedded in a polymer matrix. The devices can be optoelectronic devices, such as light emitting diodes, which include polymer-perovskite films. The polymer-perovskite films of the devices can be hole transport layers in the devices. The methods of making films may include spin casting a precursor solution followed by thermal annealing.

Methods of multiple exposure in the fields of deep ultraviolet photolithography, next generation lithography, and semiconductor fabrication comprise a spin-castable methodology for enabling multiple patterning by completing a standard lithography process for the first exposure, followed by spin casting an etch selective overcoat layer, applying a second photoresist, and subsequent lithography. Utilizing the etch selectivity of each layer, provides a cost-effective, high resolution patterning technique. The invention comprises a number of double or multiple patterning techniques, some aimed at achieving resolution benefits, as well as others that achieve cost savings, or both resolution and cost savings. These techniques include, but are not limited to, pitch splitting techniques, pattern decomposition techniques, and dual damascene structures.

This invention relates generally to an apparatus for rotationally casting a portion of a tire, and, more specifically, to an apparatus that has a floating alignment mechanism that allows a portion of a mold to move in the radial direction of the tire, which is at least partially formed by the mold, allowing the molding apparatus to omit the use of tie bars. The mechanism may comprise two set of needle roller bearings that are orthogonally arranged to allow radial movement of a portion of a mold.

An apparatus for spin casting lenses includes a rotatable tube, the rotatable tube defining a longitudinal cavity, wherein the longitudinal cavity is configured to receive molds. According to one exemplary embodiment, the rotatable tube is made of metal and includes a plurality of apertures configured to permit the transmission of actinic radiation.

For use in a rotational casting machine used for coating a rotating body with elastomer, such as polyurethane, there is provided a nozzle used for dispensing the liquid polyurethane onto the rotating body to be coated. The nozzle of the invention has a plurality of liquid-flow interior discharge-passageways each of which has an inlet connected to a sub-branch tube, which sub-branch tube is, in turn, is fluidly connected to a main branch that, in turn, is connected to a main inlet-passageway having the inlet that is directly connected to mixing head. Each discharge-passageway, or exit-passageway, changes in cross-sectional shape along the longitudinal axis thereof from its inlet to its outlet such that the cross-sectional area from the inlet to the outlet thereof gradually and minimally increases, whereby at least substantial laminar flow of the liquid is achieved with the concomitant reduced dwell-time of the liquid therein, in order to reduce in-nozzle reaction and subsequent clogging of the nozzle. The exit of the nozzle itself is constituted by the plurality of spaced-apart exit-openings or outlets of the discharge-passageways, where each such exit-opening or outlet is formed as a narrow, elongated slit or opening.

A process to modify a surface to provide reduced adhesion surface properties to mitigate insect residue adhesion. The surface may include the surface of an article including an aircraft, an automobile, a marine vessel, all-terrain vehicle, wind turbine, helmet, etc. The process includes topographically and chemically modifying the surface by applying a coating comprising a particulate matter, or by applying a coating and also topographically modifying the surface by various methods, including but not limited to, lithographic patterning, laser ablation and chemical etching, physical vapor phase deposition, chemical vapor phase deposition, crystal growth, electrochemical deposition, spin casting, and film casting.

A method of preparing particles comprises forming by optical lithography a topographic template layer disposed on a surface of a substrate, which is suitable for spin casting. The template layer comprises a non-crosslinked template polymer having a pattern of independent wells therein for molding independent particles. Spin casting a particle-forming composition onto the template layer forms a composite layer comprising the template polymer and the particles disposed in the wells. The composite layer is removed from the substrate using a stripping agent that dissolves the template polymer without dissolving the particles. The particles are then isolated.