A component for a water bearing appliance, wherein the component comprises a first polymeric material and a second polymeric material. The first polymeric material constitutes the external surface of the component and completely covers the second polymeric material. The first polymeric material and the second polymeric material have different characteristics.

A method for manufacturing a container includes injecting a first material into a first mold to form a top portion of a preform. The first material and a second material are injected into the first mold to form a bottom portion of the preform. The preform is disposed in a second mold. The preform is blow molded into a finished container.

To provide a resin composition, a pellet, a composite molded article, a method for manufacturing a composite molded article and a tank, all capable of enabling tight joining and integration of the polyacetal resin molded article and the polyethylene resin molded article, and of suppressing formaldehyde emission and occurrence of mold deposit. The resin composition contains a resin ingredient and melamine, the resin ingredient containing a polyacetal resin and a maleic anhydride-modified polyethylene resin, the polyacetal resin and the maleic anhydride-modified polyethylene resin following a mass proportion of (20 to 49):(80 to 51), and molar concentration of the maleic anhydride group capable of reacting with amino group of melamine contained in the resin composition being 5 to 25 μmol/g.

An aesthetic component for a water bearing appliance. The component comprises a first polymeric material and a second polymeric material. The external surface of the component is at least partially constituted by the first polymeric material and the first polymeric material covers the second polymeric material. The second polymeric material comprises a recycled polymeric material.

A method and system for co-injection molding of two molten plastic materials that allows monitoring and utilization of injection pressure and optionally melt pressure and/or flow front pressure during an injection run. A controller alters the injection pressure so as to achieve and maintain optimal or desired ratios of injection pressure, and optionally melt pressure and/or flow front pressure, of the two molten plastic materials. This allows for more precise part manufacture, including reducing the thickness of a skin or shell layer compared to a core layer of a molded part.

A barrier spout having a base flange and an upstand portion. The base flange has a top surface, a bottom surface and an outer surface. The upstand portion has a proximal end extending from the base flange terminating at a distal end. An upper opening is defined at the distal end, and a lower opening is defined at the proximal end. The base flange and the upstand portion each comprise a three layer co-molded configuration including an outer layer, an inner layer and a central layer. The central layer has an oxygen transmission rate that is less than an oxygen transmission rate of either of the outer layer and the inner layer.

A co-injection nozzle for an injection moulding device for producing multi-layered injection-moulded products. The nozzle includes: a central bore; a valve needle for opening and closing a nozzle opening; an annular inner melt channel for the first melt; an annular central melt channel for a second melt; and an annular outer melt channel for the first melt. The inner, central and outer melt channels are fluidically combined in the region of the nozzle tip to form a concentrically-layered melt stream. The co-injection nozzle has a back-flow barrier, integrated into the central bore, for the second melt, this barrier formed by a cut-out in the valve needle and by a melt channel for the second melt, the channel penetrating the central bore. In the open position of the back-flow barrier, the cut-out is located such that the second melt can flow through the melt channel, whilst flowing in the central bore past the valve needle.

A system or method of forming an oral care implement and an oral care implement formed thereby comprising a base structure having a handle portion and a head portion. The method may comprise providing a first mold that defines a first mold cavity having a first portion that corresponds to the handle portion and a second portion that corresponds to the head portion; injecting a first material into the first portion of the first mold cavity via a first injection orifice with a first hot runner sub-system; and injecting a second material into the first portion of the first mold cavity via a second injection orifice with a second hot runner sub-system, the second material being injected into the first material thereby forming the base structure, the second material forming a core component and the first material forming a shell component of the base structure that surrounds the core component.

A roof rail for a vehicle is provided that is made of only one piece and is solid across its length. The roof rail may be made using a co-injection molding process, a two-shot injection molding process or an extrusion molding process.

A multilayer injection molded article containing a layer (X) formed of a resin composition containing a polyamide compound (A) and a resin (B), and a layer (Y) containing a resin (C) as a major component, wherein the polyamide compound (A) contains from 25 to 50% by mol of a diamine unit, which contains a particular diamine unit in an amount of 50% by mol or more; from 25 to 50% by mol of a dicarboxylic acid unit, which contains a particular dicarboxylic acid unit in an amount of 50% by mol or more; and from 0.1 to 50% by mol of a particular constitutional unit.