The present invention provides a self-adhesive prepreg which is characterized by comprising: a base prepreg that is composed of reinforcing fibers and a thermosetting resin composition (I), some or all of which is impregnated into a reinforcing fiber layer that is formed of the reinforcing fibers; an adhesive layer that is composed of a nonwoven fabric which is laminated on at least one surface of the base prepreg so as to be integrated with the base prepreg and a thermosetting resin composition (II) which is laminated on the surface of the nonwoven fabric so as to be integrated with the nonwoven fabric.

The present disclosure concerns a method for manufacturing a composite panel including a cellular central core interposed between two skins. The manufacturing method includes the steps of manufacture of an element with a cellular structure comprising a cellular core structure interposed between two layers of structural plies intended to form the skins, positioning of the element with a cellular structure within a mold, formation of drains on either side of the cellular core structure, infusion of the element with a cellular structure so as to impregnate it with a resin, carrying out a draining of the resin through the drains in the element with a cellular structure during the infusion step, the drains having a geometry configured to provide draining, and polymerization of the impregnated element with a cellular structure to form the composite panel.

A skin-to-core bond line mapping system and method is disclosed. Layered composite components formed by “sandwiching” multiple materials together require a continuous bond between those materials with voids below particular thresholds that can vary by application. The skin-to-core bond line mapping system can include a laminate, an adhesive, a separator film, a core, a breather, a layup tool, bagging material, sealant, and a vacuum port. By employing systems and processes that layer separator film over adhesive and applying a core proximate the adhesive, a bagging material can be disposed over the materials to facilitate vacuum compaction, thereby impressing core impressions on the adhesive to map the areas between the skin and core that have good contact. An iterative process is disclosed, in which additional adhesive can be used to build the bond line until contact is made (or engineering tolerance is reached).

A method for producing a sandwich metal part (1) having a non-developable shape. The part including a metal honeycomb core (2) and two metal skins (4) arranged to either side of the core. The method including: a step of plastically deforming metal sheets (4) for obtaining the two metal skins (4); then, a step of rigidly connecting the two metal skins (4) to the core (2).

Composite honeycomb that may be contoured to form composite honeycomb structures, which have tight radii of curvatures and/or compound curvatures, and which are suitable for use in high temperature environments. The method for making the composite honeycomb involves using high temperature prepreg to make a flexible composite honeycomb that is formed into a composite honeycomb precursor. A high temperature coating resin is applied to the composite honeycomb precursor to form the high temperature composite honeycomb.

A formaldehyde-free binder composition for mineral fibers which comprises at least one phenol containing compound and at least one protein.

In accordance with one embodiment of the present disclosure, a method for manufacturing a honeycomb core sandwich panel includes placing a thermoset facesheet in contact with a thermoplastic honeycomb core without using a separate adhesive and attaching the thermoset facesheet to the thermoplastic honeycomb core by using a curing profile comprising a temperature that is lower than a gel point temperature of the thermoset facesheet and higher than a softening point temperature of the thermoplastic honeycomb core.

An aqueous binder composition for mineral fibers which comprises at least one polyelectrolytic hydrocolloid.

The present disclosure relates to a foldable honeycomb structure widely used as an industrial material, a landscape material, and a building material, and a manufacturing method therefor. More specifically, the present disclosure relates to a foldable honeycomb structure and a manufacturing method therefor, wherein a foldable honeycomb structure capable of being folded and unfolded is easily produced using a readily foldable film or sheet made of a plastic material, paper, a metal material, or a non-metal material, instead of prior art molding or extrusion methods.

Some embodiments provide a core member for a composite panel that includes a hollow cell network structure, such as a honeycomb arrangement for example, and reinforced plastic strips positioned on a portion of the continuous honeycomb structure. The honeycomb structure and the solid plastic strips may be fastened together using heat and/or pressure applications. Additionally, the method for the production of the core member is provided.