A resin powder for solid freeform fabrication includes a particle having a pillar-like form, wherein the ratio of the height of the particle to the diameter or the long side of the bottom of the particle is 0.5 to 2.0, the particle has a 50 percent cumulative volume particle diameter of from 5 to 200 μm, and the ratio (Mv/Mn) of the volume average particle diameter (Mv) to the number average particle diameter (Mn) of the particle is 2.00 or less.

The invention relates to a vaporizer unit (21) for a vaporizer device (2) of an inhaler, in particular of an electronic cigarette (1), the vaporizer unit (21) consisting of a material that comprises at least one thermoplastic, preferably a high-performance thermoplastic. The invention also relates to a method for producing such a vaporizer unit (21).

The invention relates to a method for the production of a textile object having electrostatically charged fibres and to a textile object. A die arrangement comprising at least two separate dies or a multipolymer die is used for the production of fibres from different polymers, whereby the polymers are spaced sufficiently apart in a triboelectric series. During the process, the fibres produced from the polymers are co-mingled, at least in sections, and charged triboelectrically. Alternatively or in addition, the fibres are charged triboelectrically by means of an uncomplicated finishing process. Filters with quality factors greater than 0.2 can be produced with the textile object.

Monofilaments comprising particles of polysiloxane from 10 nm to 200 m in diameter in a matrix of thermoplastic polymer are provided. The monofilaments are useful in the manufacture of papermachine clothings in particular and are notable for abrasion resistance, dimensional stability, glideability and soiling resistance.

A resin powder for solid freeform fabrication includes a particle having a pillar-like form, wherein the ratio of the height of the particle to the diameter or the long side of the bottom of the particle is 0.5 to 2.0, the particle has a 50 percent cumulative volume particle diameter of from 5 to 200 m, and the ratio (Mv/Mn) of the volume average particle diameter (Mv) to the number average particle diameter (Mn) of the particle is 2.00 or less.

A process for manufacturing a fiber including polyetherketoneketone including the steps of: mixing polyetherketoneketone and sulfuric acid having a concentration of at least 90 wt % to obtain a spin dope and passing the spin dope through a spinneret into a coagulation bath, wherein the polyetherketoneketone is dissolved in the sulfuric acid to a concentration of 12 to 22 wt %. Also disclosed are fibers obtainable by the process and polyetherketoneketone fibers having a sulfur content of 0.001 to 5 wt %, based on the weight of the fiber, in particular such fibers having low or high crystallinity, as well as, hybrid yarns and composite materials.

A process for producing a polymer includes polymerizing a monomer system containing a compound of formula: ArOArC(O)XC(O)ArOAr in a reaction medium containing a Lewis acid. In the formula, X is an aliphatic moiety, and Ar is an aromatic moiety. The reaction medium further includes a dielectrophile. The dielectrophile is a compound of formula: L-(O)CArC(O)-L, in which L is a leaving group.

Stretched filaments based on aromatic polyethers, wherein the filaments have been stretched at a temperature between glass transition temperature and melting point and wherein the filaments are cooled down to below the glass transition temperature under full tensile load and a process for production thereof and use thereof.

A polyarylene ether copolymer comprising i) at least one block comprising in polymerized form A) isosorbide, isomannide, isoidide or a mixture thereof and B) at least one unit comprising at least one difunctional compound comprising at least one dichlorodiaryl sulfone, a dichlorodiaryl ketone or a mixture thereof and ii) at least one block comprising in polymerized form C) at least one polyalkylene oxide, a process for its preparation and its use in the preparation of coatings, films, fibers, foams, membranes or molded articles.

A resin powder for solid freeform fabrication includes a particle having a pillar-like form, wherein the ratio of the height of the particle to the diameter or the long side of the bottom of the particle is 0.5 to 2.0, the particle has a 50 percent cumulative volume particle diameter of from 5 to 200 m, and the ratio (Mv/Mn) of the volume average particle diameter (Mv) to the number average particle diameter (Mn) of the particle is 2.00 or less.