A method of injection molding a building product includes providing an injection mold with a plurality of gates located adjacent a perimeter of the injection mold. The method further includes commingling a first material and a second material into a flow, the second material comprising a color that contrasts with a color of the first material and injecting the commingled flow into the plurality of gates to form a building product. Thereafter, the method includes removing the building product from the injection mold. The second material extends through an interior of the building product and appears as contrasting streaks on an exterior of the building product to form a variegated grain appearance. The method also includes notching a portion of the building product, such that the building product has a substantially linear grain in an exposed portion thereof.

An injection molded product may include a corner shingle resembling a single course of tiles that differ in size. The corner shingle may be a semi-crystalline thermoplastic and having a wood grain direction. Streaks may be formed in the corner shingle that are substantially parallel to the wood grain direction. The streaks may extend through an interior of the corner shingle and appear as contrasting streaks on an exterior of the corner shingle to form a variegated wood grain appearance. In addition, an injection molded vestige may be formed in the corner shingle. The injection molded vestige may be located adjacent a perimeter of the corner shingle, and may comprise the location at which material entered an injection mold through a gate.

A plate is provided in its outer edge portion with a concavo-concave shape which makes a frame hard to fall away. A metal mold is provided with a cavity portion and a gate portion. A plurality of gate portions are provided at positions facing to an outer edge thickness surface of a metal plate in a state of being set to the metal mold and are arranged at positions conforming to arrangement of concave portions in the concavo-convex shape. A plate with frame is manufactured by using the metal mold. The invention can provide a method manufacturing the plate with frame obtained by integrally molding a resin frame in an outer edge portion of the metal plate by using the metal mold, and an amount of deformation can be held down even if any deformation is generated in the plate edge portion when the frame is integrally molded in the plate.

An injection molding system for forming a pressure vessel includes an injector that propels a polymeric material and a mold body in fluid communication with the injector. The mold body defines a cavity for receiving the polymeric material. The cavity includes a mold portion for forming the pressure vessel. The mold portion extends longitudinally along an axis between a first mold end and a second mold end. The cavity includes a transport portion that transmits the polymeric material from the injector to the mold portion. The transport portion includes a sprue connected to the injector and extending between the injector and the first mold end of the mold portion, runners connected to the sprue and extending radially from the axis, and gates connected to each of the runners and to the first mold end of the of the mold portion spaced around the substantially annular configuration.

The present invention is directed to a golf ball having a non-planar parting line on its spherical surface. The non-planar parting line includes a plurality of arcuate segments, including at least one elliptical arc segment.

An injection molding system for forming a pressure vessel includes an injector that propels a polymeric material and a mold body in fluid communication with the injector. The mold body defines a cavity for receiving the polymeric material. The cavity includes a mold portion for forming the pressure vessel. The mold portion extends longitudinally along an axis between a first mold end and a second mold end. The cavity includes a transport portion that transmits the polymeric material from the injector to the mold portion. The transport portion includes a sprue connected to the injector and extending between the injector and the first mold end of the mold portion, runners connected to the sprue and extending radially from the axis, and gates connected to each of the runners and to the first mold end of the of the mold portion spaced around the substantially annular configuration.

The present disclosure is directed to a golf ball having a non-planar parting line on its spherical surface. The non-planar parting line is comprised of a plurality of arcuate segments, and at least one of the plurality of arcuate segments is a sinusoidal arcuate segment.

The molded body according to one aspect of the present disclosure is a molded body obtained by molding resin and used by allowing light to pass through the resin. This molded body includes: a plurality of gate marks each being as a mark of a gate through which the resin was injected during the molding; and a weld part disposed in such a manner as to avoid a position where the light passes through the resin.

A semiconductor device of embodiments includes: a die pad; a semiconductor chip fixed on the die pad; and a sealing resin covering the semiconductor chip and at least a part of the die pad. The sealing resin has a first protruding portion provided on one side surface and a second protruding portion provided on another side surface. The cross-sectional area of the first protruding portion is equal to or more than 10% of the maximum cross-sectional area of the sealing resin. The cross-sectional area of the second protruding portion is equal to or more than 10%; of the maximum cross-sectional area. The maximum cross-sectional area is equal to or more than 6 mm.sup.2.

Golf ball methods and molds for quickly and efficiently eliminating air/gas from within a mold while better centering a subassembly in the mold during golf ball manufacture and the improved golf balls resulting therefrom.