A method for manufacturing an acrylic fiber uses a spinning solution in which an acrylic polymer is dissolved in an organic solvent, the method including reducing an amount of organic solvent by repeatedly spraying water onto coagulated filaments obtained by solidifying the spinning solution and pressing the coagulated filaments with nip rolls. The nip rolls may apply a nip pressure of 0.2 MPa or higher. Thus, a method for manufacturing an acrylic fiber with which an organic solvent in the acrylic fiber can be removed within a short period of time without using a water bath is provided.

A method for manufacturing an acrylic fiber uses a spinning solution in which an acrylic polymer is dissolved in an organic solvent, the method including reducing an amount of organic solvent by repeatedly spraying water onto coagulated filaments obtained by solidifying the spinning solution and pressing the coagulated filaments with nip rolls. The nip rolls may apply a nip pressure of 0.2 MPa or higher. Thus, a method for manufacturing an acrylic fiber with which an organic solvent in the acrylic fiber can be removed within a short period of time without using a water bath is provided.

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.

The invention relates to a polymer fibre with improved dispersibility, a method for producing said fibre and the use of said fibre. The polymer fibre according to the invention comprises at least one synthetic polymer and 0.1 and 20 wt. % of a silicone. The polymer forming the fibre forms a solid dispersion medium at room temperature (25 C.) for the silicone present in solid form also at room temperature (25 C.) which forms the more disperse phase. The polymer fibre according to the invention possesses an improved dispersibility and is therefore suitable for producing aqueous suspensions which are used, for example, in the formation of textile fabrics, e.g. nonwovens.

The invention relates to a polymer fibre with improved dispersibility, a method for producing said fibre and the use of said fibre. The polymer fibre according to the invention comprises at least one synthetic polymer and 0.1 and 20 wt. % of a silicone. The polymer forming the fibre forms a solid dispersion medium at room temperature (25 C.) for the silicone present in solid form also at room temperature (25 C.) which forms the more disperse phase. The polymer fibre according to the invention possesses an improved dispersibility and is therefore suitable for producing aqueous suspensions which are used, for example, in the formation of textile fabrics, e.g. nonwovens.

Disclosed are melt-spun fibers comprising thermoplastic aliphatic polyketone as a first polymer and a selected polymeric component as a second polymer.

These fibers are distinguished by excellent mechanical properties, such as good bending recovery, by very good sliding properties, by high hydrolysis resistance and by high abrasion resistance.

Disclosed are melt-spun fibers comprising thermoplastic aliphatic polyketone as a first polymer and a selected polymeric component as a second polymer.

These fibers are distinguished by excellent mechanical properties, such as good bending recovery, by very good sliding properties, by high hydrolysis resistance and by high abrasion resistance.

The disclosure relates to a method of making carbon fiber, the method comprising pyrolyzing poly(p-phenylene) (PPP) fiber at a temperature sufficient to convert PPP fiber substantially to carbon fiber. The disclosure also relates to pre-PPP polymer, methods for making PPP fiber from pre-PPP polymer and, in turn, making carbon fiber from PPP fiber.

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.