A method of injection molding thick plastic parts, comprising molding a transitional part using by a first shot through the first or A-side of the mold, moving the transitional part and mold core away from the mold cavity to create a second shot space, and injecting a second shot which merges with the transitional part to create a final part.

A method of making a cleaning-roll body having a core and a jacket on the core. The method has the steps of forming the core of a first polymer by injection molding in a first injection mold, removing the injection molded from the first mold, inserting the formed core into a second mold and overmolding the jacket on the formed core.

An optical component has a small-volume section and a large-volume section, wherein said optical component is a single-piece injection-molded component with the exception of one region in the large-volume section, said component being supplemented, in the region in the large-volume section, by an add-on to the optical component.

A method for moulding an optical component by a mould, at least one moulding station, and at least one cooling station including a cooling space, the method including: a step of moulding a moulded component in a moulding station, a step of transferring this component from this moulding station into the cooling space, keeping the moulded component facing at least one of the mould parts, a step of cooling the moulded component by sending a cooling fluid between the moulded component and the walls of the cooling space, the moulded component being kept some distance from these walls.

An injection molding die including a cavity mold and a core mold that is freely openable and closable with respect to the cavity mold. A gas storage concave portion is formed in a back side molding surface of the core mold for molding a back surface side of a resin molded article. The gas storage concave portion is formed by securing a depth of 0.15 to 1.00 mm to be recessed from the back side molding surface, so as to secure an unfilled space in which a molten resin is not filled.

An application container includes a main body cylinder, an application tool, and an engagement portion. The main body cylinder has a first end and a second end opposite the first end. The application tool is insertable into the main body cylinder through the first end of the main body cylinder. The engagement portion is positioned within the main body cylinder, and includes a cylindrical portion to connect with the application tool and a connector that connects the cylindrical portion and the main body cylinder. The cylindrical portion of the engagement portion is spaced apart from the main body cylinder.

A lens mount apparatus comprising a first lens component and a second lens component joined integrally with the first lens component, resulting in mechanochemical attachment of the second lens component with the first lens component to produce the unitary lens mount apparatus without compromising the lens mount apparatus optics, wherein at least one of the first and second lens components is an optical lens.

An injection molded article is obtained by injection molding a molten resin into a mold. The injection molded article includes: a base as a thin plate-shaped member that is connected to a gate of the mold; and a plurality of protrusions each integrally molded on the base and having a thickness greater than a plate thickness of the base. The plurality of protrusions have holes each extending through the base, and the holes in the respective protrusions are connected through another component to form a flow channel. A processed region processed to have a surface roughness greater than a surface roughness of a mirror surface region including a region between the holes on the base is formed in a projected region where a region having a predetermined thickness value is projected on the base.

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.

The present invention relates to articles, systems, and methods for injection molding an article. The method includes directing a first shot of molten polymeric material into a mold cavity to form a first part while simultaneously occluding a portion of the gate orifice area with a mold core. Once the first shot is solidified, then the mold core is withdrawn and a second shot is directed into the space previously occupied by the mold core while a portion of the gate orifice area is occluded by the solidified first shot.