A polymer composition that contains a polyaryletherketone and a liquid crystalline polymer that includes repeating units derived from naphthenic hydroxycarboxylic acids, naphthenic dicarboxylic acids, or a combination thereof in an amount of about 15 mol. % or less of the polymer is provided. The composition optionally contains reinforcing fibers (e.g., glass fibers) in an amount of no more than about 10 wt. %.

The present invention provides high performance polymer (HPP) compositions, methods, processes, and systems for the manufacture of three-dimensional articles made of polymers using molding or 3D printing. The HPP compositions comprise a first HPP dissolved in a solvent and a second HPP present as a solid.

A method for producing a semiconductor device, which includes forming an underlayer film on a semiconductor substrate with a resist underlayer film forming composition that contains a solvent, and a polymer containing a unit structure of Formula (2):
O—Ar.sub.2—O—Ar.sub.3-T-Ar.sub.4  Formula (2)
where Ar.sub.2, Ar.sub.3, and Ar.sub.4 are individually a C.sub.6-50 arylene group or an organic group containing a heterocyclic group; at least one of Ar.sub.3 and Ar.sub.4 is a phenylene group; and T is a carbonyl group. The resist underlayer film forming composition has a solid content of 0.1 to 70 mass % of a total mass of the composition.

The present invention provides: a polymer electrolyte composition which can achieve excellent proton conductivity under slightly humidified conditions, excellent mechanical strength and excellent physical durability, has excellent practicality, and can be produced using a nitrogen-containing additive, wherein the nitrogen-containing additive can prevent the elution of the additive under a strongly acidic atmosphere during the operation of a fuel cell, has excellent chemical stability so as to tolerate a strongly acidic atmosphere, can be dissolved in various general-purpose organic solvents, has superior processability, can be mixed with an ionic-group-containing polymer, can prevent the occurrence of phase separation during the formation of a film, and can prevent the formation of an island-in-sea-like phase separation structure or the occurrence of bleeding out during the formation of a film; and a polymer electrolyte membrane, a membrane electrode assembly and a polymer electrolyte fuel cell, each of which is produced using the polymer electrolyte composition. The polymer electrolyte composition according to the present invention comprises at least an ionic-group-containing polymer (A) and a nitrogen-containing additive (B), said polymer electrolyte composition being characterized in that the nitrogen-containing additive (B) is represented by a specific structural formula.

A polyarylene ether comprising in polymerized form A) at least one tri- or higher functional compound and B) isosorbide, isomannide, isoidide or a mixture thereof, wherein the polyarylene ether is a polyarylene ether sulfone or a polyarylene ether ketone, a process for its preparation and its use in the preparation of a coating, film, fiber, foam, membrane or molded article.

The present disclosure relates to an additive manufacturing (AM) method for making a three-dimensional (3D) object, comprising a) the provision of providing a powdered polymer material (M) comprising at least one poly(ether ether ketone) (PEEK) polymer, and at least one poly(aryl ether sulfone) (PAES) polymer, b) the deposition of successive layers of the powdered polymer material; and c) the selective sintering of each layer prior to the deposition of the subsequent layer, wherein the powdered polymer material (M) is heated before step c) to a temperature Tp (° C.): Tp<Tg+40, wherein Tg (° C.) is the glass transition temperature of the PAES polymer, as measured by differential scanning calorimetry (DSC) according to ASTM D3418.

The present application discloses an insulated wire and a preparation method thereof, a coil and an electronic/electrical device. According to the insulated wire, a bonding layer containing PEEK nano-powder is arranged between a conductor and a PEEK resin insulating layer, and a bonding agent for forming the bonding layer contains organic solvent, polyamide-imide resin and PEEK nano-powder material which are mixed. The bonding layer can be well bonded with both the conductor material and the PEEK resin insulating layer, so that the produced insulated wire rod has good adhesion, and cracking and detachment will not appear during application.

The present specification relates to a fluorine-based compound for a brancher, a polymer using the same, a polymer electrolyte membrane using the same, a fuel cell using the same, and a redox flow battery including the same.

A mobile electronic device comprising at least one part made of a polymer composition [composition (C), herein after] comprising at least one part made of a polymer composition [composition (C), herein after] comprising from at least one polyaryletherketone polymer [(PAEK) polymer], and at least one nitride (NI) of an element having an electronegativity (∈) of from 1.3 to 2.5, as defined in <<Handbook of Chemistry and Physics>>, CRC Press, 64.sup.th edition, pages B-65 to B-158, based on the total weight of the composition (C).

A blend comprising: (i) a polymeric material (A) having a repeat unit of formula

—O—Ph—O—Ph—CO—Ph—  I

and a repeat unit of formula

—O—Ph—Ph—O—Ph—CO—Ph—  II

wherein Ph represents a phenylene moiety; and (ii) a polymeric material (B) having a repeat unit of formula (XX)

##STR00001##

wherein t1 and w1 independently represent 0 or 1 and v1 represents 0, 1 or 2.