A multilayer sheet comprising first and second layers is provided. The first layer consists of a co-polyester. The second layer consists of a thermoplastic polyurethane elastomer having an elongation at break of greater than 200%, a hardness of 60A to 85D, an ultimate tensile strength of greater than about 5000 psi, and a light transmission between 400 nm and 800 nm of greater than about 75%. A mold is provided and the multilayer sheet is thermoformed over the mold to form a plurality of tooth-receiving cavities configured to receive and reposition a patient's teeth from a first arrangement toward a second arrangement. Excess material is trimmed from the thermoformed multilayer sheet to form a multilayer dental aligner.

This invention relates to a polymer composition that is particularly suitable for use in the manufacture of thermoformed articles, which can be biodegraded in industrial composting. This invention also relates to a process for the production of the said composition and articles obtained thereby.

A shower pan and method of manufacture are described. Embodiments of the shower pan can include, but are not limited to, a solid surface top layer and a PET second layer that can be thermoformed, molded, and laminated in a single step. The solid surface top layer can be approximately ⅛″ to ¼″ thick and the PET second layer can be approximately ⅞″ to 1⅛″ thick. The shower pan may further include a third layer being fiberglass.

A fastening inclusion is provided and includes a hard point made of coalesced metal sheets, metal or fiber flanges extending from edges of the hard point, and a fastener arranged on the hard point. The fastening inclusion can be incorporated into a fiber reinforced polymer structure by interleaving the flanges with fiber reinforced resin plies, and then curing the fiber reinforced plies to form a composite structure. The fastener on the hard point may be used for mechanically connecting the composite structure to a separate component, such as a metal component on a vehicle.

A method of manufacturing a printing cylinder. The method comprises providing a moulding apparatus comprising a cylindrical moulding vessel defining a moulding cavity (101). The vessel comprises at least one inlet for the ingress of moulding material. The method comprises performing an injection moulding operation comprising: injecting moulding material through the at least one inlet to substantially fill the moulding cavity with moulding material; and effecting hardening of the moulding material within the vessel (102). The method comprises removing the printing cylinder (103). At least part of the injection moulding operation is performed in the presence of an active pressure being applied to the moulding cavity.

A plastic container 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. A preform and method for making a container are also disclosed.

A thin-walled microplate suitable for use in the Polymerase Chain Reaction (PCR) technique comprising a plurality of thin-walled tubes or wells arranged in a fixed array, each well having an upper portion with an open top and a lower, frustoconical portion having a substantially flat bottom.

A method of and fixture for molding a product with an embedded ring. A system for molding a ring into a product including a rotational molding mold with an opening formed in the rotational molding mold sized to fit a ring. A fixture is removably couplable to the ring, wherein the ring and the fixture when coupled are removably couplable in the opening. The fixture is removed from the ring after the ring is molded into a product. A method of manufacturing a product with an embedded ring includes: coupling a ring to a fixture; clamping the fixture and the ring in an opening in a mold top; clamping the mold top to a mold bottom; rotomolding a product; unclamping the fixture from the mold top; uncoupling the fixture from the ring; unclamping the mold top and the mold bottom; and removing the product from the mold.

A repulpable insulated container assembly having a container formed of paper such as corrugated cardboard or varying paper materials and defining an interior; and a repulpable insert placed within the interior of the container and formed of a first paper layer; and a paper fiber pad coupled to the first paper layer.

An additive manufacturing system is capable of extruding poly-fiber strand having a fiber core coated with a polymer with a high range of flexibility in positioning and orienting extruded fibers. Extruded fibers may be laid in a single direction, or may curve or turn to be laid in multiple directions. Structures of devices and components may be created using interconnected extruded strands having interstitial spaces between and around the strands. This structure may be infused with resin or polymer using a pressure or vacuum based infusion system. In this manner, durable polymeric objects can be created without requiring expensive molds. Other techniques are also possible, including varying the types of strands used in an object to create areas of the object that will preferentially twist or flex in certain ways or directions, as well as producing objects with zones having different types of resin or no resin.