Composite liners (such as acoustic panels, fan track liners, and/or ice impact panels or boxes for turbofan engines) and techniques for forming composite liners. In some examples, the composite liner includes at least one region comprising a reinforcement architecture comprising a matrix material, a plurality of relatively tough polymer-based reinforcement elements, and a plurality of second reinforcement elements. The plurality of relatively tough polymer-based reinforcement elements and the plurality of second reinforcement elements are embedded in the matrix material.

A resin composition is provided and contains a maleimide compound, a polyphenylene ether compound having an unsaturated double bond in the molecule, a phosphorus-containing compound having a group represented by the following Formula (1) and a group containing a phosphorus atom in the molecule, and a curing agent.

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In Formula (1), R.sub.1 represents a hydrogen atom or an alkyl group.

A multi-layered, multi-spectral target for rifles. The multi-layered target comprises a first layer printed rifle target having at least one target position on a first surface and a light reflective film surmounted on a second surface of the first layer printed rifle target. There is a cutout silhouette layer surmounted on the light-reflective film wherein the light reflective film shows through the cutout silhouette.

The present invention relates to a metal card and a card manufacturing method, and the metal card includes a metal sheet, a machined part made of a plastic material in such a manner as to be inserted into one side surface of the metal sheet, an insulating sheet with a ferromagnetic insulating material in such a manner as to be attached to the underside of the metal sheet, and an inlay sheet with antenna coils in such a manner as to be attached to the underside of the insulating sheet, wherein the metal sheet has a machined part insertion portion formed on one side surface thereof to insert the machined part, and the ferromagnetic insulating material has the shape of one or more pieces or powder.

A multilayer tube, particularly for fluids, includes a sheath made of fluorinated polymers which is located in an innermost layer, which is adapted to be in contact with a circulating fluid, and is constituted by coupling a first, nonconducting material to a second, black-pigmented material that is electrically at least antistatic in the form of one or more continuous strips. The sheath has a smooth internal surface and is reinforced with external layers that are predominantly made of rubber.

An aspect of the present invention relates to a resin composition, which contains a modified polyphenylene ether compound of which a terminal is modified with a substituent having a carbon-carbon unsaturated double bond and a free radical compound, in which the free radical compound has at least one free radical group selected from the group consisting of structures represented by Formulas (1), (2), (3) and (4) in a molecule.

One aspect of the present application relates to a resin composition including a modified polyphenylene ether compound having a carbon-carbon unsaturated double bond at a molecular end, a maleimide compound having two or more N-substituted maleimide groups in one molecule, and a liquid styrene-butadiene copolymer having a weight average molecular weight of less than 10000 and having a 1,2-vinyl group.

An object of the present disclosure is to provide a laminate comprising a fluoropolymer layer with insulating properties, hardness, or transparency. The present disclosure relates to a laminate comprising a fluoropolymer layer, wherein the fluoropolymer comprises, as a main component, a monomer unit represented by formula (1):

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wherein R.sup.1 to R.sup.4 are each independently a fluorine atom, a fluoroalkyl group, or a fluoroalkoxy group.

An instrument having a vacuum chamber, wherein a wall of the vacuum chamber includes a layer of carbon fiber reinforced thermoset having a thickness in a range of 1-10 mm, a first and a second layer of ceramic material having a thickness in a range of 40-60 μm, and a layer of aluminum having a thickness in a range of 0.5-10 mm. The first layer of ceramic material is positioned between the layer of carbon fiber reinforced thermoset and the layer of aluminum. The layer of aluminum is positioned between the first layer of ceramic material and the second layer of ceramic material. The second layer of ceramic material is positioned most to a side of an interior surface of the wall of the vacuum chamber.

A metal-clad laminate includes an insulating layer that contains a cured product of a resin composition containing a polymer having a structural unit represented by Formula (1) in a molecule and a metal foil that is laminated on the insulating layer and is a metal foil in which a nickel element amount on a surface on a side in contact with the insulating layer and a nickel element amount on the surface when the surface is sputtered for 1 minute at 3 nm/min in terms of SiO.sub.2 are each 4.5 at % or less with respect to the total element amount on each surface.

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In Formula (1), Z represents an arylene group, R.sub.1-R.sub.3 each independently represent a hydrogen atom or an alkyl group, and R.sub.4-R.sub.6 each independently represent a hydrogen atom or an alkyl group having 1-6 carbon atoms.