A carousel-like continuous molding system includes an arrangement of inclined feed channels. Each of the feed channels has a controllable valve therein positioned upstream of an inlet to an associated mold cavity. The valve is controllable so that adjustments may be made in real time to achieve or maintain delivery of molten polymeric material to the mold cavity at constant pressure.

An injection apparatus (100) for injecting molten plastic, in particular PET, into a mold for molding bottle preforms; the injection apparatus (100) comprisinga first injector (1) and a second injector (2) adapted to receive molten plastic and inject it into the mold alternately to each other; a conduit (8) adapted to carry molten plastic from a plasticization apparatus (102) towards the first injector (1) and towards the second injector (2); a third injector (3) provided with a piston (32), the third injector (3) being connected to the conduit (8) so as to receive molten plastic from the conduit (8) and then inject it into the conduit (8); actuation means (34) adapted to cause the piston (32) of the third injector (3) to move forward to inject the molten plastic into the conduit (8); wherein said actuation means (34) are adapted to control the backward movement of the piston (32) of the third injector (3) while it receives the molten plastic from the conduit (8).

An injection apparatus (100) for injecting molten plastic, in particular PET, into a mold for molding bottle preforms; the injection apparatus (100) comprisinga first injector (1) and a second injector (2) adapted to receive molten plastic and inject it into the mold alternately to each other; a conduit (8) adapted to carry molten plastic from a plasticization apparatus (102) towards the first injector (1) and towards the second injector (2); a third injector (3) provided with a piston (32), the third injector (3) being connected to the conduit (8) so as to receive molten plastic from the conduit (8) and then inject it into the conduit (8); actuation means (34) adapted to cause the piston (32) of the third injector (3) to move forward to inject the molten plastic into the conduit (8); wherein said actuation means (34) are adapted to control the backward movement of the piston (32) of the third injector (3) while it receives the molten plastic from the conduit (8).

An oral care implement with a soft tissue cleanser. The oral care implement may include a handle and a head, the head having a first surface and an opposite second surface. A first cleanser may be fixed to the first surface of the head such that the first cleanser has a hole through which a portion of the first surface of the head is exposed. Furthermore, a second cleanser may be fixed to the portion of the first surface of the head that is exposed through the hole of the first cleanser.

An oral care implement with a soft tissue cleanser. The oral care implement may include a handle and a head, the head having a first surface and an opposite second surface. A first cleanser may be fixed to the first surface of the head such that the first cleanser has a hole through which a portion of the first surface of the head is exposed. Furthermore, a second cleanser may be fixed to the portion of the first surface of the head that is exposed through the hole of the first cleanser.

A mold for molding an injection molded article comprises a mold cavity with a non-symmetrical portion. At least one flow leader in the non-symmetrical portion of the cavity produces a symmetrical flow boundary in a multilayer flow downstream of the non-symmetrical portion of the mold cavity. The at least one flow leader may be a variable thickness flow leader or may alternatively be a plurality of flow leaders having a flow path length that differs from the flow path length of an adjacent flow leader by no more than about 15%. The multilayer flow comprising an inner layer, an outer layer, and an interior layer. Co-injection molding apparatus and methods that may use the foregoing mold are disclosed. Similarly, co-injection molded articles and containers that may result from the foregoing mold, apparatus, and methods are disclosed.

A mold for molding an injection molded article comprises a mold cavity with a non-symmetrical portion. At least one flow leader in the non-symmetrical portion of the cavity produces a symmetrical flow boundary in a multilayer flow downstream of the non-symmetrical portion of the mold cavity. The at least one flow leader may be a variable thickness flow leader or may alternatively be a plurality of flow leaders having a flow path length that differs from the flow path length of an adjacent flow leader by no more than about 15%. The multilayer flow comprising an inner layer, an outer layer, and an interior layer. Co-injection molding apparatus and methods that may use the foregoing mold are disclosed. Similarly, co-injection molded articles and containers that may result from the foregoing mold, apparatus, and methods are disclosed.

An RTM method in which a preform formed from a reinforcing fiber substrate is placed in a cavity of a molding die, and resin is injected from a plurality of injection ports into the cavity and impregnated into the preform, includes disposing the plurality of injection ports in first positions in a central section of the cavity corresponding to positions of the preform located in a product area of an article to be finally molded and second positions located in a periphery of the cavity corresponding to positions of the preform outside the product area of the article to be finally molded or corresponding to positions inside the cavity but outside an area of the preform, and causing the timing of closing the injection ports after resin injection to be different from each other between injection ports disposed in the first positions and injection ports disposed in the second positions.

An RTM method in which a preform formed from a reinforcing fiber substrate is placed in a cavity of a molding die, and resin is injected from a plurality of injection ports into the cavity and impregnated into the preform, includes disposing the plurality of injection ports in first positions in a central section of the cavity corresponding to positions of the preform located in a product area of an article to be finally molded and second positions located in a periphery of the cavity corresponding to positions of the preform outside the product area of the article to be finally molded or corresponding to positions inside the cavity but outside an area of the preform, and causing the timing of closing the injection ports after resin injection to be different from each other between injection ports disposed in the first positions and injection ports disposed in the second positions.

An oral care implement with a soft tissue cleaner. The inventive oral care implement comprises different kinds of soft tissue cleaners that offer expanded in-mouth cleaning. In one aspect, the invention can be an oral care implement comprising: a handle; a head having a structural body having a front surface and a rear surface opposite the front surface; a basin formed into the rear surface of the structural body, the structural body comprising a protuberance extending upward from a recessed floor of the basin, the basin surrounding the protuberance; a first cleaner formed of a resilient material for cleansing soft oral tissue located within the basin, the protuberance of the structural body extending through a central hole of the first cleaner; and a second cleaner formed of a resilient material for cleansing soft oral tissue, the second cleaner located on the protuberance of the structural body.