Provided is a composition suitable for a process of building a three-dimensional object layer-by-layer by electromagnetic radiation-generated sintering, including at least one poly(aryl-ether-ketone) (PAEK), where the composition has an aromatic ether content of from 0 and 0.4% by mass, based on the total mass of the composition, and an aluminium mass content of lower than 1000 ppm. The composition may be used in process for building an object comprising sintering the composition with electromagnetic radiation. The present invention also includes a three-dimensional object obtained by such a process. A process for preparing the composition is also provided.

The invention relates to a Poly(aryl-ether-ketone) (PAEK) composition, useful in a process for building a three-dimensional object layer by layer by electromagnetic radiation-generated sintering, said composition being characterized in that it has an aromatic ether content comprised between 0 and 0.4% by mass and an aluminium mass content lower than 1000 ppm, preferably lower than 600 ppm and more preferably lower than 500 ppm.

A resist underlayer film-forming composition formed into a flat film which can exhibit high etching resistance, a good dry etching velocity ratio and a good optical constant, has a good covering property even against a so-called step-structure substrate, and has a small film thickness difference after being embedded. Also, a method for producing a polymer suitable for the resist underlayer film-forming composition; a resist underlayer film using the resist underlayer film-forming composition; and a method for manufacturing a semiconductor device. A resist underlayer film-forming composition containing a reaction product of an aromatic compound having 6 to 60 carbon atoms with a carbonyl group in a cyclic carbonyl compound having 3 to 60 carbon atoms and a solvent, wherein the reaction product has such a structure that one of the carbon atoms in the cyclic carbonyl compound links two molecules of the aromatic compound to each other.

The present invention generally relates a composite material containing fibers and a resin matrix that comprises a PEEK-PEoEK copolymer having R.sub.PEEK and R.sub.PEoEK repeat units in a molar ratio R.sub.PEEK/R.sub.PEoEK ranging from 95/5 to 5/95 in contact with at least a part of the surface of such fibers. The present invention also relates to methods for making such composite materials, shaped articles made from such composite materials, and methods of making such articles.

The present invention generally relates a composite material containing fibers and a resin matrix that comprises a PEEK-PEoEK copolymer having R.sub.PEEK and R.sub.PEoEK repeat units in a molar ratio R.sub.PEEK/R.sub.PEoEK ranging from 95/5 to 5/95 in contact with at least a part of the surface of such fibers. The present invention also relates to methods for making such composite materials, shaped articles made from such composite materials, and methods of making such articles.

[Problem to be Solved] An object is to provide a compound with good heat resistance. And another object is to provide a coating made exhibits less film shrinkage, good gap filling property and good planarization. [Solution] The present invention provides an ethynyl derived composite and a composition comprising thereof. And the present invention provides a method for manufacturing a coating by it, and a method for manufacturing a device.

[Problem to be Solved] An object is to provide a compound with good heat resistance. And another object is to provide a coating made exhibits less film shrinkage, good gap filling property and good planarization. [Solution] The present invention provides an ethynyl derived composite and a composition comprising thereof. And the present invention provides a method for manufacturing a coating by it, and a method for manufacturing a device.

The present invention relates to an ion conductor, a method for producing the same, and an ion exchange membrane, a polymer electrolyte membrane and a fuel cell including the same. The ion conductor includes a repeat unit represented by the following Formula 1, and a repeat unit represented by the following Formula 2 or a repeat unit represented by the following Formula 5. Formulae 1, 2 and 3 are described as in the Detailed Description of the Invention. The ion conductor contains a hydrocarbon-based block copolymer which has an easily changeable structure because it includes a hydrophilic region and a hydrophobic region, wherein characteristics of the block copolymer and the ion conductor can be easily regulated through control over the structure of the hydrophilic region and the hydrophobic region, and ion conductivity and durability of the ion conductor are improved within the whole humidity range through micro-phase separation between the hydrophilic region and the hydrophobic region which are structurally controlled.

The present invention relates to an ion conductor, a method for producing the same, and an ion exchange membrane, a polymer electrolyte membrane and a fuel cell including the same. The ion conductor includes a repeat unit represented by the following Formula 1, and a repeat unit represented by the following Formula 2 or a repeat unit represented by the following Formula 5. Formulae 1, 2 and 3 are described as in the Detailed Description of the Invention. The ion conductor contains a hydrocarbon-based block copolymer which has an easily changeable structure because it includes a hydrophilic region and a hydrophobic region, wherein characteristics of the block copolymer and the ion conductor can be easily regulated through control over the structure of the hydrophilic region and the hydrophobic region, and ion conductivity and durability of the ion conductor are improved within the whole humidity range through micro-phase separation between the hydrophilic region and the hydrophobic region which are structurally controlled.

The present disclosure provides phosphonated polymers that can be used, for example, as polymer electrolyte membranes (PEMs) and/or catalyst ionomeric binders for electrodes in PEM fuel cells, and more particularly for high-temperature PEM fuel cells. High-temperature PEM fuel cells that use phosphonated polymers of the present disclosure suffer from reduced or no acid leaching because, in at least some examples, phosphonic acid moieties are covalently bound to the backbone of the polymers. A phosphonated polymer include a backbone having one or more aromatic monomers, with each aromatic monomer having one or more phosphonic acid groups. A phosphonic acid group may include phosphonic acid or a functional group that is hydrolysable into phosphonic acid.