The present invention relates to a composite article comprising at least two layers (A) of component a) and at least one layer (B1) of component b). The respective layers (A) and (B1) are alternately linked together. The component a) has a compressive modulus of at least 10 MPa and can, therefore, be considered as a comparably rigid component, which can be also assigned as rigid core element, in contrast thereto the component b) has a compression stress value at a compression of 40% of not more than 20 kPa. By consequence, component b) can be considered as a comparably flexible (elastic) component. Therefore, the composite articles according to the present invention can be considered as semi-flexible materials due to the combination of alternating rigid and flexible segments (layers) within those composite articles. The composite articles according to the present invention may further comprise at least one layer (B2) of component b), which layer is also alternately linked together with the respective layers (A). In addition, at least one layer (B2) crosses at least one layer (B1) with an angle α in the range of 0°<α<180°, wherein both layers (B1) and (B2) are made of component b). The present invention further relates to a method for producing those composite articles as well as to the use of those composite articles in composite applications, for example, wind rotor blades or boat hulls or insulation applications, for example for curved walls or roofs or between rafters.

A method for manufacturing a composite may include: selecting an interlayer material having a first distortional-deformation capability; selecting a matrix material having a second distortional-deformation capability, which is less than the first distortional-deformation capability; disposing at least one reinforcing layer, formed of reinforcing fibers of a reinforcing material, and at least one interlayer, formed of a nonwoven fabric of the interlayer material, in an alternating configuration; and infusing the at least one reinforcing layer and the at least one interlayer with the matrix material such that the matrix material flows though the at least one reinforcing layer and the at least one interlayer. Selection of the interlayer material having the first distortional-deformation capability and the matrix material having the second distortional-deformation capability is configured to increase tensile strength of the composite.

A carbon fiber prepreg is disclosed. The carbon fiber prepreg, exclusive of any additive scrims, comprises a multiple carbon fiber layers and resin layers in an integral form, characterized in that: for the carbon fiber prepreg at each standard unit of the carbon fiber prepreg (g/m.sup.2, indicating a weight percentage of the carbon fiber and the resin in the carbon fiber prepreg), the resin layers and the carbon fiber layers are both of multi-layer in a manner that each resin layer is impregnated with two adjacent carbon fiber layers so that the carbon fiber layers are able to be consolidated firmly for strengthening overall structure of the carbon fiber prepreg.

The present disclosure relates to composite materials comprising a resin and at least one sheet that comprise optionally cellulose filaments (CF), fillers and optionally reinforcing fibers as well as methods for the preparation thereof. The methods comprise impregnating the sheets comprising the cellulose filaments, fillers and optionally the reinforcing fibers or a stack thereof with resin. The composite materials can optionally comprise at least one other sheet, the at least one other sheet being different from the at least one sheet and comprising fibers chosen from wood pulp, fiberglass, natural fibers and mixtures thereof. The sheet can also be in the form of a panel of a preform.

The light reflective film has improved adhesive property between a light reflective layer and a hard coat layer. The light reflective film has a high refractive index layer, a low refractive index layer, a resin adhesive layer, and a hard coat layer laminated on a substrate, in this order. The hard coat layer has an active energy ray-curable resin. The resin adhesive layer has at least one resin selected from polyvinyl acetal resins, acrylic resins, and urethane resins.

A tear resistant multilayer film including a stack of polymeric layers that includes first and second layer types. Layers of the first layer type includes a first polymer and the layers of the second layer type includes a second polymer. The first polymer is polyethylene terephthalate or a first ester block copolymer that includes polyethylene terephthalate blocks at a weight percent of the first ester block copolymer of at least 50 percent and further includes glycol-modified polyethylene terephthalate blocks. The second polymer is sebacic acid-substituted polyethylene terephthalate or a second ester block copolymer that includes sebacic acid-substituted polyethylene terephthalate blocks at a weight percent of the second ester block copolymer of at least 50 percent and further includes polyethylene terephthalate blocks or glycol-modified polyethylene terephthalate blocks. The tear resistant multilayer film includes a total of 8 to 300 layers of the first and second layer types.

A laminate blank includes at least one rigidifying layer and at least one comfort layer. The rigidifying layer includes a reinforcement preform and a resin. The layers are pressed to form the laminate blank.

An object of the invention is to provide a multilayered structure having very superior gas barrier properties and being excellent in flex resistance, pinhole resistance, stretchability, thermoformability and interlayer adhesiveness, and having superior durability enabling characteristics such as high gas barrier properties to be maintained even if used with deformation such as flexion and/or stretching, and to provide a laminate in which the multilayered structure is used, and a production method thereof. Provided by the present invention is a multilayered structure in which at least 4 resin-layers constituted with a resin composition containing an ethylene-vinyl alcohol copolymer are contiguously laminated. A single layer of the resin layer has an average thickness of preferably no less than 0.01 μm and no greater than 10 μm. The average thickness is preferably no less than 0.1 μm and no greater than 1,000 μm. When the content of ethylene units of the ethylene-vinyl alcohol copolymer is no less than 3 mol % and no greater than 70 mol %, the saponification degree is preferably no less than 80 mol %.

The present disclosure generally relates to multilayer optical films having an asymmetric construction and durable solar mirror films comprising such multilayer optical films, as well as constructions including durable solar mirror films.

The invention relates to a container precursor comprising a wall, wherein the wall a) surrounds an interior region, and b) comprises a first wall region and a second wall region; wherein the first wall region comprises a first layer sequence comprising a first wall layer, a second wall layer and a third wall layer as overlying layers from the interior region outwards; wherein, in the first wall region, a second carrier layer is characterised by a smaller layer thickness than a first carrier layer, or a third carrier layer, or both; wherein the second wall region comprises a second layer sequence comprising first wall layer, a second wall layer and a third wall layer as overlying layers from the interior region outwards; wherein, in the second wall region, the second wall layer is connected to the third wall layer; wherein, in the second wall region, the third carrier layer is characterised by a larger layer thickness than the first carrier layer, or the third carrier layer, or both. Further, the invention relates to a process for manufacturing a container precursor, a container precursor obtainable through this process, a closed container, a process for manufacturing a closed container, a closed container obtainable through this process, a use of the aforementioned container precursor, and a further use of the aforementioned container precursor.