The invention relates to a pre-impregnated fibre-reinforced composite material in laminar form, obtained impregnating a fibrous mass with a polymeric binder composition and intended to be subjected to successive forming and complete curing operations to produce a fibre-reinforced composite material. The polymeric binder composition comprises one or more resins chosen in the group consisting of siloxane resins and silsesquioxane resins, and can optionally comprise one or more organic resins. The polymeric binder composition appears as a liquid with viscosity between 55000 and 10000 mPas at temperatures between 50° C. and 70° C. The polymeric binder composition forms a polymeric binder matrix, not cross-linked or only partially cross-linked, that fills the interstices of the fibrous mass. The invention also relates to a method for making said pre-impregnated fibre-reinforced composite material in laminar form. The invention also relates to a manufactured article obtained by hot forming and complete curing of the aforesaid pre-impregnated fibre-reinforced composite material, as well as a method for making said manufactured article.

A molding device including a molding strip formed of a first material and extending along a machine direction, having a width defined along a transverse direction perpendicular to the machine direction, and a thickness measured along a direction perpendicular to the machine direction and to the transverse direction, and an inner face and an outer face, the molding strip including a plurality of cavities, characterized in that part of the cavities are at least partially obturated by a plugging material, so as to define molding cavities for forming retaining elements and/or preforms of retaining elements, and non-functional cavities.

Embodiments of the present invention provide systems and methods for using nonwoven materials for evacuation slides, life rafts, life vests, and other life-saving inflatable devices. The nonwoven materials have a substrate layer with continuous filaments formed in various directions.

A vehicle interior part includes a substrate, a first outer layer, a second outer layer, an upper reinforcement layer, a lower reinforcement layer, and a bottom fabric layer, where a first surface and a second surface of the substrate are bonded to a first surface of the upper reinforcement layer and a first surface of the lower reinforcement layer, respectively, a second surface of the upper reinforcement layer is bonded to a first surface of the first outer layer, a second surface of the first outer layer is bonded to the second outer layer, and a second surface of the lower reinforcement layer is bonded to the bottom fabric layer.

A method for manufacturing an aeronautical panel with improved impact and damping behaviors. The method is applicable not only to flat panels but also to curved or highly curved panels, whatever their size and the shape of their core. The manufactured sandwich panels comprise dry fiber mats made from fabric material and/or non-crimp fabric material. In a particular embodiment, the fabric material and/or the non-crimp fabric material comprise dry fibers which are recycled and/or reused fibers.

Lightweight, structurally reinforced thermoplastic objects comprising at least one reinforcement zone are manufactured by providing a heatable rigid forming chamber with a chamber volume. At a temperature below the thermoplastic softening temperature, the chamber is loaded with a plurality of thermoplastic lofting bodies and a plurality of thermoplastic reinforcement bodies wherein the lofting bodies are heat-loftable bodies comprising a thermoplastic matrix containing an elastically compressed assembly of reinforcement fibers embedded therein, lofty non-woven bodies comprising an elastically compressible assembly of reinforcement fibers and thermoplastic fibers. Upon closing the chamber, lofting bodies of lofty non-wovens are elastically compressed, producing an internal pressure. After heating the chamber above softening temperature, reinforcement bodies and lofting bodies are ow thermoplastically formable, and lofting bodies configured as heat-loftable bodies produce a second internal pressure. After a predetermined processing time, the chamber is cooled yielding a structurally reinforced object.

Extruded molds and methods for manufacturing composite structures using the extruded molds are disclosed. The molds may include recessed or raised longitudinal features to impart a corresponding shape to the molded composite structures. The composite structures may be panels used to construct cargo vehicles, for example.

A resin composition and method for installing a pipe liner that allows the liner to be fully wet out with a resin and activator and stored for a period of up to six months prior to installation and curing. A method of lining a pipe with a delayed curing resin composition is also provided that includes fully wetting out a liner with a blended two part epoxy composition such that the liner can be transported in a wet out fashion, placed in a pipe to be lined and repositioned as needed without concern for the resin composition to begin curing.

A vacuum cleaner comprises: a suction part for suctioning external air; a discharge part through which the sucked air is discharged to the outside; a frame along a flow path between the suction part and the discharge part; and a filter including a filter member which is supported by the frame and which separates dust from the suctioned air, wherein the filter member includes: a first filter part spaced from and to be parallel with an opening formed in the frame; a second filter part having one side supported by the frame and another side extended from the one side thereof toward the edge of the first filter part; and a bent part between the edge of the first filter part and the other side of the second filter part, and the thickness of the first filter part or the second filter part is different from the thickness of the bent part.

A method for rapidly fabricating or repairing a fiber reinforced composite may include the use of a covalent adaptable network polymer (CAN) powder for encapsulating reinforcing fibers or welding to a CAN matrix. The fiber reinforced composite may be formed or repaired by applying CAN powder to reinforcing fibers or to a damaged area of a fiber reinforcing composite and compressing the CAN powder with the reinforcing fibers or the damaged area of the fiber reinforced composite at a relatively low temperature, temperature and processing time to form a CAN matrix. The method may be configured for fabricating a fiber reinforced composite having specific desired material properties by varying the arrangement and materials used.