A process for joining two sheeting articles reinforced with unidirectionally aligned endless-fibres by ultrasonic welding, wherein the fibres are embedded in a matrix of polycarbonate and the sheeting articles have abutting ends that are substantially rectangular and substantially even. The process comprises (1) arranging the sheeting articles next to one another end-to-end in the region of the abutting ends in a welding apparatus between a sonotrode and an anvil, (2) welding the sheeting articles by means of ultrasound, wherein the sonotrode and the anvil exert pressure on the to-be-welded sheeting articles in the melting region between the sheeting articles and perpendicularly to the abutting ends of the sheeting articles, and (3) removing the sheeting articles that are welded to one another from the welding apparatus. Also provided is a second process for joining two sheeting articles, a sheeting article, an apparatus, and a multilayer composite.

The invention relates to a device for producing three-dimensional models.

A latching mechanism suitable for suppository molds, where the latching mechanism is designed to assist the separation of mold when the latch is released. In embodiments, the latching mechanism has a lever portion on a first mold half and a catch portion on a second mold half. The lever portion is configured to impinge upon the catch portion to provide a force to bias the first mold half away from the second mold half. Other embodiments include methods of utilizing such a catching mechanism with a suppository mold.

In one example, a structure is provided that includes a plastic body having a unitary, single-piece construction. The plastic body further includes a substantially hollow interior, and a parting line that extends around a portion of the perimeter of the structure. The structure also includes a solid compression molded element that is integral with the plastic body. The solid compression molded element is configured and arranged such that the parting line is not connected to the solid compression molded element.

Methods for forming optical articles with antireflective nanostructured (ARN) surfaces. An aluminum layer is deposited or otherwise applied to the cavity of an injection mold tool. Sequential chemical treatments such as anodization and etching steps form an ARN mold texture on the interior surface of the cavity. The ARN mold texture is a negative of a desired surface texture of the article. During injection molding, the desired ARN surface is thereby produced in the optical article.

Tyre curing mould (20) comprising two shells (21) that are each intended to mould a sidewall of the tyre and a ring of sectors (22) that are intended to mould a tread of the tyre, each sector (22) having a lining (23) and two arc-shaped segments (27).

According to the invention, each segment (27) is arranged so as to fill a clearance at an interface between the lining (23) and a shell (21), and so as to not be coincident with a moulding surface (24) of the curing mould.

A prism (1090) is configured from a dielectric medium and is used in analysis using surface plasmons. The prism (1090) is provided with an incidence surface (1170) on which excitation light from outside is incident, a reflection surface (1172) on which excitation light having entered the incidence surface (1170) is reflected, an emission surface (1174) from which excitation light reflected by the reflection surface (1172) is emitted, and an opposing surface (1175) opposing the reflection surface (1172). A gold film (1092) is formed on the reflection surface (1172). The opposing surface (1175) has a sink-mark surface (1200), and the sink-mark surface (1200) is a transparent surface.

This disclosure relates to a continuous solution polymerization process wherein production rate is increased. Process solvent, ethylene, optional comonomers, optional hydrogen and a single site catalyst formulation are injected into a first reactor forming a first ethylene interpolymer. Process solvent, ethylene, optional comonomers, optional hydrogen and a heterogeneous catalyst formulation are injected into a second reactor forming a second ethylene interpolymer. The first and second reactors may be configured in series or parallel modes of operation. Optionally, a third ethylene interpolymer is formed in an optional third reactor, wherein an optional heterogeneous catalyst formulation may be employed. In a solution phase, the first, second and optional third ethylene interpolymers are combined, the catalyst is deactivated, the solution is passivated and following a phase separation process an ethylene interpolymer product is recovered.

A welder for constructing and welding plastic fenestration structures, including parts storage bins structured to store and support parts to be assembled to create the plastic fenestration structures; wheels that receive the parts from the parts storage bins; aligners that position the parts relative to one another; heating plates that apply heat to ends of the parts thereby rendering at least a portion of the ends of the parts molten; parts shifters operably shiftable between a first position adjacent the wheels and a second position remotely located from the wheels that shift the parts to a fusing position in which adjacent parts are abutted together at a fusing station to produce the plastic fenestration structure; and at least one cooling station at which the plastic fenestration structure is held.

A welder for constructing and welding plastic fenestration structures, including parts storage bins structured to store and support parts to be assembled to create the plastic fenestration structures; wheels that receive the parts from the parts storage bins; aligners that position the parts relative to one another; heating plates that apply heat to ends of the parts thereby rendering at least a portion of the ends of the parts molten; parts shifters operably shiftable between a first position adjacent the wheels and a second position remotely located from the wheels that shift the parts to a fusing position in which adjacent parts are abutted together at a fusing station to produce the plastic fenestration structure; and at least one cooling station at which the plastic fenestration structure is held.