A surfacing material that is capable of ultraviolet (UV) protection and self-releasing from a mold surface. The surfacing material is a multilayer structure composed of a curable resin layer laminated to a self-releasing layer. The surfacing material is designed to be co-cured with a composite substrate, for example, a prepreg layup. After co-curing, the composite part surfaced with the surfacing material is releasable from the mold surface with ease. The self-releasing layer functions as a UV blocking layer until the cured composite substrate is ready for painting. When the self-releasing layer removed, a paint-ready surface is revealed. Such surface does not require any surface preparation prior to painting.

A device for manufacturing a composite product has a first folded layer with a first and second superposed portion extending from a respective first and second free end to a first bend connecting the first and second superposed portions, and a second folded layer with a third and fourth superposed portion extending from a respective third and fourth free end to a second bend connecting the third and fourth superposed portions, wherein the first and second folded layers are laid adjacent to each other in order that the second portion of the first folded layer is in contact with the third portion of the second folded layer, the first and second folded layers being oriented with respect to each other in order to extend from a first side including the first, second, third and fourth free ends to a second side including the first and second bend.

A production method of a composite material includes placing a fiber base material on a mold. The fiber base material includes a first fiber base material portion and a second fiber base material portion. The method further includes disposing a mold release member in part of a region where the first fiber base material portion and the second fiber base material portion are in contact with each other, and curing a resin with which the first fiber base material portion and the second fiber base material portion are impregnated, so as to mold the composite material.

Methods of forming laminating adhesive articles include providing a multi-layer article, and a tool with a structured surface. The multi-layer articles include a substrate, an adhesive layer, and a liner. The multi-layer article is placed between the structured surface of the tool and a support surface that is hard and the tool is embossed against the liner by applying pressure or pressure/heat. The embossing causes the tool structures to distort the liner and the adhesive layer, and causes permanent topological changes in a portion of the adhesive layer, but does not distort the substrate. The distortion in the liner is retained upon release of the applied pressure. The portions of topologically changed adhesive can form convex structures that are permanent. Upon removal of the liner from the adhesive layer, the concave structures on the adhesive layer are unstable, but the convex structures are stable.

A layer-by layer method for additive manufacturing that includes: photocuring a first volume of resin to form a layer of a build at an upper surface of a separation membrane laminated over a build window; injecting a fluid into an interstitial region between the separation membrane and the build window; retracting the build from the build window; evacuating the fluid from the interstitial region; and photocuring a second volume of liquid resin to form a subsequent layer of the build between an upper surface of a separation membrane and the previous layer of the build.

Processes, and systems for making a substantially smooth surfaced, dust agent free rubber or similar sheet product, are disclosed. To create the dust agent free sheet, a low-shrinkage thermoplastic textile fiber separator is inserted between layers of a calendered sheet so as to be able to separate layers of the sheeting after vulcanization. The use of the separator replaces the use of talc or dust that is commonly used to separate layers of sheeting during or after the calendering process and prior to a heating or vulcanization process.

To provide a film capable of suppressing both of formation of wrinkles when a release film is suction-attached to a cavity surface in compression molding, and formation of wrinkles when the cavity bottom surface to which the release film has been suction-attached is raised; and a method for producing a semiconductor element by using said film. A laminated film 1 comprises a layer 3 of shrinkable film, of which the storage elastic modulus E at 180 C. is at least 70 MPa, and the thermal shrinkage in 30 minutes at 180 C., with reference to 20 C., in each of the machine direction (MD) and the transverse direction (TD), is at least 3%, and a fluororesin layer 5 present on one side or both sides of the shrinkable film layer 3.

A method of manufacturing a fastening portion of an anisogrid composite structure includes winding the fibers to form multiple rib parts of the fastening portion configured by winding fibers on a mold, cutting a prepreg into a shape corresponding to a shape of an opening defined by the multiple ribs, inserting the cut prepreg into the corresponding opening, covering the fastening portion with a release film, and winding a compression film on the release film to apply pressure to the fastening portion.

Processes and systems for making a substantially smooth surfaced, dust agent free rubber or similar sheet product, are disclosed. To create the dust agent free sheet, a low-shrinkage thermoplastic textile fiber separator is inserted between layers of a calendered sheet so as to be able to separate layers of the sheeting after vulcanization. The use of the separator replaces the use of talc or dust that is commonly used to separate layers of sheeting during or after the calendering process and prior to a heating or vulcanization process.

Processes and systems for making a substantially smooth surfaced, dust agent free rubber or similar sheet product, are disclosed. To create the dust agent free sheet, a low-shrinkage thermoplastic textile fiber separator is inserted between layers of a calendered sheet so as to be able to separate layers of the sheeting after vulcanization. The use of the separator replaces the use of talc or dust that is commonly used to separate layers of sheeting during or after the calendering process and prior to a heating or vulcanization process.