A parylene microcapillary is manufactured by drawing a polyethylene carbonate (PEC) fiber from a 0 C. solution of 12-25% PEC in chloroform to create a PEC fiber that has a constant diameter over several centimeters. Parylene is deposited in a chamber over the PEC fiber, and then the coated PEC fiber is heated above 180 C. This heating melts and decomposes the PEC fiber such that it self-expels from the coating, leaving a microcapillary. The self-expulsion allows for meters-long lengths of microcapillaries. Alternatively, a serpentine fiber channel of PEC is created by deposition, photolithography, and etching within a sandwich of parylene. It is heated above 180 C. to expel the PEC leaving a hollow channel within a mass of parylene. The resulting microcapillaries may have residues of cyclic ethylene carbonate remaining from the decomposed PEC.

Provided are polyketone toothbrush bristles and a toothbrush comprising the same. The toothbrush bristles are made using a polyketone material having high rigidity, high elasticity and excellent wear resistance and thus shows reduced bristle gap-widening and increased service life. The toothbrush bristles obtained by using the polyketone according to the present disclosure have excellent elasticity and are suitable for removal of plaque on the severely indented tooth surfaces. Particularly, in the case of fine bristles, it is possible to remove interdental plaque, which, otherwise cannot be removed well by the conventional toothbrushes.

A method for removing retroviruses from liquid samples and a nanofiber containing liquid filtration medium that simultaneously exhibits high liquid permeability and high microorganism retention is disclosed. Retroviruses are removed from a liquid by passing the liquid through a porous nanofiber containing filtration medium having a retrovirus LRV greater than about 6, and the nanofiber(s) has a diameter from about 10 nm to about 100 nm. The filtration medium can be in the form of a fibrous electrospun polymeric nanofiber liquid filtration medium mat.

A method for removing retroviruses from liquid samples and a nanofiber containing liquid filtration medium that simultaneously exhibits high liquid permeability and high microorganism retention is disclosed. Retroviruses are removed from a liquid by passing the liquid through a porous nanofiber containing filtration medium having a retrovirus LRV greater than about 6, and the nanofiber(s) has a diameter from about 10 nm to about 100 nm. The filtration medium can be in the form of a fibrous electrospun polymeric nanofiber liquid filtration medium mat.

A plant and method for making continuous yarns made of silicone material comprises at least an extrusion station, into which the material is introduced in an amorphous condition, and extrusion means which cause the material to exit from the extrusion station along an extrusion axis. The plant also comprises a vulcanization station, located downstream of the extrusion station, at a determinate distance therefrom, in which the continuous yarn is vulcanized in a direction of treatment. The plant also comprises a drawing unit, disposed downstream of the vulcanization station.

A plant and method for making continuous yarns made of silicone material comprises at least an extrusion station, into which the material is introduced in an amorphous condition, and extrusion means which cause the material to exit from the extrusion station along an extrusion axis. The plant also comprises a vulcanization station, located downstream of the extrusion station, at a determinate distance therefrom, in which the continuous yarn is vulcanized in a direction of treatment. The plant also comprises a drawing unit, disposed downstream of the vulcanization station.

The disclosure relates to benzyl -(1.fwdarw.3)-glucan, compositions comprising benzyl -(1.fwdarw.3)-glucan, and blends comprising benzyl -(1.fwdarw.3)-glucan and one or more polymers. Also disclosed are fibers comprising benzyl -(1.fwdarw.3)-glucan, and articles comprising such fibers, including articles such as a carpet, a textile, a fabric, yarn, or apparel.

The disclosure relates to benzyl -(1.fwdarw.3)-glucan, compositions comprising benzyl -(1.fwdarw.3)-glucan, and blends comprising benzyl -(1.fwdarw.3)-glucan and one or more polymers. Also disclosed are fibers comprising benzyl -(1.fwdarw.3)-glucan, and articles comprising such fibers, including articles such as a carpet, a textile, a fabric, yarn, or apparel.

A manufacturing method of a tow prepreg, comprising: an impregnation process of impregnating a reinforcement fiber with an anhydrous epoxy resin to obtain a tow prepreg; and a process of irradiating a specific surface of the tow prepreg with laser beam to cure the epoxy resin on the specific surface.

A manufacturing method of a tow prepreg, comprising: an impregnation process of impregnating a reinforcement fiber with an anhydrous epoxy resin to obtain a tow prepreg; and a process of irradiating a specific surface of the tow prepreg with laser beam to cure the epoxy resin on the specific surface.