A dual density molded member, a dual density molded tooling, and a method of forming the dual density molded member, the dual density molded member including an outer shell comprising a self-skinning polyurethane foam, and a core comprising a urethane foam, the self-skinning polyurethane foam being higher in density than the urethane foam

A mold release processing method according to an embodiment of the present invention includes the steps of: (a) providing a mold releasing agent, including a fluorine-based silane coupling agent and a solvent, and a mold of which the surface has a porous alumina layer; (b) applying the mold releasing agent onto the surface; and (c) heating, either before or after the step (b), the surface to a temperature not less than 40° C. and less than 100° C. in an ambient with a relative humidity of 50% or more.

An injection molding method includes providing a molding device including a first mold, a second mold over the first mold and a first mold cavity defined by the first mold and the second mold; injecting a first material into the first mold cavity; forming a first layer from the first material; replacing the second mold by a third mold, injecting a second material into a second mold cavity defined by the first mold and the third mold; and forming a second layer from the second material, wherein the second layer at least partially contacts the first layer. The first material is same as the second material.

The present disclosure is directed at the deposition of multiple layers and/or multiple blends of fiber which optionally include other additives in a 3D mold. The resulting parts are particularly suitable for automotive acoustic parts that may be used, for example, in under-carpet applications, flooring, headliners, trunk liners, and inner and outer dash liners. The parts may also include acoustic exterior parts. The fibers may also be filled/packed differently within the mold at any specified location.

Embodiments disclosed herein relate to composite laminate structures including a polymer layer having sp.sup.2 carbon-containing material and improved heat release properties, and methods of making the same.

A method for producing a shell for luggage, comprising: a) producing a preform comprising a structure and including a reinforcement, the structure, which comprises a main zone, two longitudinal zones and two transverse zones, having loops successively forming rows of loops, the rows of loops being connected to each other, and b) placing the preform on a punch, c) impregnating the reinforcement of the preform with a matrix material in order to produce a shell comprising a body, the body being made of a composite material and comprising the matrix and the reinforcement, and the body having a main wall, two longitudinal walls and two transverse walls.

A three-dimensional printing system and equipment assembly for the manufacture of three-dimensionally printed articles is provided. The equipment assembly includes a three-dimensional printing build system, an optional liquid removal system and an optional harvester system. The build system includes a conveyor, plural build modules and at least one build station having a powder-layering system and a printing system. The equipment assembly can be used to manufacture pharmaceutical, medical, and non-pharmaceutical/non-medical objects. It can be used to prepare single or multiple articles.

A three-dimensional printing system and equipment assembly for the manufacture of three-dimensionally printed articles is provided. The equipment assembly includes a three-dimensional printing build system, an optional liquid removal system and an optional harvester system. The build system includes a conveyor, plural build modules and at least one build station having a powder-layering system and a printing system. The equipment assembly can be used to manufacture pharmaceutical, medical, and non-pharmaceutical/non-medical objects. It can be used to prepare single or multiple articles.

An injection molding method includes providing a molding device including a first mold, a second mold over the first mold and a first mold cavity defined by the first mold and the second mold; injecting a first material into the first mold cavity; forming a first layer from the first material; replacing the second mold by a third mold; injecting a second material into a second mold cavity defined by the first mold and the third mold; and forming a second layer from the second material disposed over the first layer, wherein the first material is different from the second material.

A method of forming a low-density three-dimensional article is provided. The method includes printing a low-density composition on a substrate to form at least one layer comprising the low-density composition. The low-density composition includes a (P) polymer component and (M) a microsphere component in a ratio by volume (P):(M). The method also includes selectively controlling a density of the low-density composition during printing to give the at least one layer on the substrate. Selectively controlling the density of the low-density composition includes varying the ratio (P):(M) during printing. The method further includes repeating the printing and selectively controlling the density of the low-density composition to form additional layer(s), thereby forming the low-density three-dimensional article. A low-density three-dimensional article prepared in accordance with the method is also provided.