The invention is targeted mainly at a process for the preparation of a semifinished product comprising a PAEK-based resin and reinforcing fibers, comprising the stages of: a. preparation of a dispersion comprising a PAEK-based resin in the pulverulent form dispersed in an aqueous phase comprising a surfactant; b. bringing the reinforcing fibers into contact with said aqueous dispersion; c. drying the fibers impregnated with dispersion; and d. heating the impregnated fibers to a temperature sufficient for the melting of the resin, so as to form a semifinished product,
characterized in that the surfactant is a thermally stable surfactant. It is furthermore targeted at the dispersion of use in said process. Finally, it is targeted at the semifinished products capable of being obtained and also at their use in the manufacture of composite materials.

Disclosed are films comprising Ag, In, Ga, and S (AIGS) nanostructures and at least one ligand bound to the nanostructures. In some embodiment, the AIGS nanostructures have a photon conversion efficiency of greater than 32% and a peak wavelength emission of 480-545 nm. In some embodiments, the nanostructures have an emission spectrum with a FWHM of 24-38 nm.

Provided is a process of making a polyphenylene oxide prepolymer, comprising a step of reacting a reactive cycloolefin and a vinyl-containing polyphenylene oxide in the presence of a ruthenium catalyst. The reactive cycloolefin may be selected from dicyclopentadiene monomer, dicyclopentadiene oligomer, dicyclopentadiene polymer, norbornene monomer, norbornene oligomer, norbornene polymer, and a combination thereof; the vinyl-containing polyphenylene oxide may be selected from divinylbenzyl polyphenylene oxide resin, vinylbenzyl-modified polyphenylene oxide resin, methacrylic polyphenylene oxide resin, and a combination thereof; the ruthenium catalyst may be a Grubbs catalyst. Also provided are a polyphenylene oxide prepolymer made by the process, a resin composition containing the polyphenylene oxide prepolymer, and a product made from the resin composition.

A non-photosensitive resin composition including: a self-cross-linkable copolymer having structural units of Formulae (1) and (2): ##STR00001##
wherein each R.sup.0 is independently a hydrogen atom or methyl group; X is an —O— group or an —NH— group; R.sup.1 is a single bond or a C.sub.1-6 alkylene group; R.sup.2 is a C.sub.1-6 alkyl group; a is an integer of 1 to 5, b is an integer of 0 to 4, and when a and b satisfy 1≦a+b≦5, and b is 2, 3, or 4, such R.sup.2 optionally differ from each other; R.sup.3 is a divalent organic group of Formula (I), Formula (II), or Formula (III), and R.sup.4 is an organic group having an epoxy group: ##STR00002##
wherein c is an integer of 0 to 3, d is an integer of 1 to 3, and each e is independently an integer of 2 to 6; and a solvent.

A curable composition including a radically polymerizable compound containing an unsaturated bond within the molecule, an inorganic filler containing a metal oxide, and a dispersant containing an acidic group and a basic group. The content of the metal oxide is between 80 parts by mass and 100 parts by mass (inclusive) relative to the amount of the inorganic filler of 100 parts by mass. Components of the curable composition other than the inorganic filler are organic components. A content of the inorganic filler is between 80 parts by mass and 400 parts by mass (inclusive) relative to the amount of the organic components of 100 parts by mass. A content of the dispersant is between 0.1 part by mass and 5 parts by mass (inclusive) relative to the amount of the inorganic filler of 100 parts by mass.

A process for producing an ion exchange precursor resin membrane involves co-extruding an ion exchange precursor resin with an incompatible polymer to form a multilayer film having a layer of the ion exchange precursor resin supported on a layer of the incompatible polymer. The layer of incompatible polymer is then removed from the layer of ion exchange precursor resin to provide the ion exchange precursor resin membrane. The ion exchange precursor resin membrane may be converted to an ion exchange resin membrane by hydrolysis, and subsequent acidification if desired. Ion exchange resin membranes and ion exchange precursor resin membranes having a uniform thickness of 25 microns or less may be formed by the process.

To provide an ion exchange membrane for alkali chloride electrolysis which has high membrane strength and low membrane resistance, thereby capable of reducing the electrolysis voltage during alkali chloride electrolysis. In this ion exchange membrane (1) for alkali chloride electrolysis, a reinforcing material 20 formed by weaving reinforcing yarns 22 and sacrificial yarns 24 is disposed in a layer (S) 14, and layer (S) 14 has elution portions 28 formed by elution of at least portions of the sacrificial yarns 24. In a cross section perpendicular to reinforcing yarns of the warp, the average distance (d1) from the center of a reinforcing yarn 22 to the center of the adjacent reinforcing yarn 22, the total area (P) obtained by adding the cross-sectional area of an elution portion 28 and the cross-sectional area of a sacrificial yarn 24 remaining in the elution portion 28, the number (n) of elution portions between adjacent reinforcing yarns 22, and the ion exchange capacity of a layer (Sa) located on the most anode side in the layer (S) 14 during alkali chloride electrolysis, are controlled to be within specific ranges, respectively.

An article includes a layer including a melt processable fluoropolymer, wherein the fluoropolymer includes a copolymer of a tetrafluoroethylene and a perfluoroether, wherein the article has an ultraviolet transmittance of at least about 50% at a thickness of about 0.040 inches to about 0.062 inches when exposed to ultraviolet radiation of about 200 nm to about 280 nm. Further provided is a method of making the article and an apparatus for purifying water including an article, such as a flexible tube.

Articles useful as graphic films are presented. Specifically, the present disclosure is directed to an article comprising a film layer, the film layer comprising a polymer blend comprising a thermoplastic polyurethane and a polyvinyl butyral, and an adhesive layer adjacent the film layer.

The invention pertains to a method of making cured parts from a composition comprising certain fluoroelastomers and certain bromine-containing compounds under conditions suitable for delivering cured parts possessing outstanding mechanical and sealing properties and incorporating suitable amounts of bromine-containing compounds, so that these cured parts, when submitted to wear/damage would release Br-containing compounds, which can easily detected using appropriate analytical techniques, so as to monitor and anticipate critical failures thereof.