An air adsorbing and sound absorbing structure with a first portion comprising a first material comprising an open-celled foam with an air-adsorbing material coupled to the foam, where the first portion has a first air adsorption capacity and a first density. There is a second portion fixed to or integral with the first portion, wherein the second portion comprises one or more of: a different material than the first material, a second air adsorption capacity that is different than the first air adsorption capacity, and a second density that is different than the first density.

The present invention relates to a particulate carbon material that can be produced from renewable raw materials, in particular from biomass containing lignin, comprising: a MC content that corresponds to that of the renewable raw materials, said content being preferably greater than 0.20 Bq/g carbon, especially preferably greater than 0.23 Bq/g carbon, but preferably less than 0.45 Bq/g carbon in each case; a carbon content in relation to the ash-free dry substance of between 60 ma. % and 80 ma. %; an STSA surface area of the primary particles of at least 5 m.sup.2/g and at most 200 m.sup.2/g; and an oil absorption value (OAN) of between 50 ml/100 g and 150 ml/100 g. The present invention also relates to a method for producing said carbon material and to the use thereof.

The resin composition of the present invention comprises a prepolymer (P) and a thermosetting component, the prepolymer (P) being obtained by polymerizing an alkenyl-substituted nadimide (A), a maleimide compound (B), and an amino-modified silicone (C).

Disclosed herein is a composite metamaterial comprising a polymer foam layer having one or both of a low dielectric constant of less than or equal to 2 and a low magnetic constant of less than or equal to 1, both determined at a frequency of 100 Hz and a temperature of 23 C.; wherein the polymer foam layer comprises a first surface, a second surface, and a plurality of vias that each independently at least partially extend from one or both of the first surface and the second surface into the polymer foam layer; and a via material having one or both of a high dielectric constant greater than the low dielectric constant and a high magnetic constant greater than the low magnetic constant disposed in and filling the plurality of vias.

Rapidly curable electrically conductive clear coatings are applied to substrates. The electrically conductive clear coating includes to clear layer having a resinous binder with ultrafine non-stoichiometric tungsten oxide particles dispersed therein. The clear coating may be rapidly cured by subjecting the coating to infrared radiation that heats the tungsten oxide particles and surrounding resinous binder. Localized heating increases the temperature of the coating to thereby thermally cure the coating, while avoiding unwanted heating of the underlying substrate.

This invention relates to an additive for a thermoset resin matrix having a core and a reactive cross-linked thermoset coating. The reactive cross-linked thermoset coating is the reaction product of a thermoset resin and a curative in a dispersant.

A composition may include a resin and a plurality of polymer nanoparticles included in the resin to form a resin mixture. The polymer nanoparticles may alter the properties of the resin mixture and improve the processing, manufacturability, and performance of an article manufactured with the polymer nanoparticles.

A method is described for producing a fiber-reinforced plastic substrate that simultaneously satisfies three points of joinability, mechanical characteristics, and productivity, the method including the following components [A], [B], and [C], wherein at least the following drawing step, first impregnating step, second impregnating step, and take-up step are continuously and sequentially performed while the component [A] is caused to run: [A] a reinforcing fiber [B] a thermoplastic resin [C] a thermosetting resin <drawing step> step of drawing a continuous reinforcing fiber sheet containing the component [A]; <first impregnating step> step of impregnating either the component [B] or the component [C] from one surface of the continuous reinforcing fiber sheet to obtain a fiber-reinforced plastic intermediate in which either the component [B] or the component [C] is disposed on a first surface; <second impregnating step> step of impregnating the other of the component [B] or the component [C] from a second surface opposite to the first surface to obtain a fiber-reinforced plastic substrate; and <take-up step> step of taking up the fiber-reinforced plastic substrate.

A polyphenylene ether derivative having at least one N-substituted maleimide group represented by the following general formula (I) in a molecule, and a heat curable resin composition, a prepreg, a metal-clad laminate, and a multilayer printed wiring board, each of which uses the polyphenylene ether derivative: ##STR00001##
wherein R.sub.1 each independently represents a hydrogen atom, an aliphatic hydrocarbon group having 1 to 5 carbon atoms, or a halogen atom, R.sub.2 each independently represents a hydrogen atom, an aliphatic hydrocarbon group having 1 to 5 carbon atoms, or a halogen atom, A.sub.1 represents a residual group represented by a specific general formula, m is an integer of 1 or more as the number of the structural unit, and x and y each is an integer of 1 to 4.

An air adsorbing and sound absorbing structure with a first portion comprising a first material comprising an open-celled foam with an air-adsorbing material coupled to the foam, where the first portion has a first air adsorption capacity and a first density. There is a second portion fixed to or integral with the first portion, wherein the second portion comprises one or more of: a different material than the first material, a second air adsorption capacity that is different than the first air adsorption capacity, and a second density that is different than the first density.