A core-sheath conjugate fiber for artificial hair including a core part and a sheath part is provided. The core part contains a polyester-based resin composition containing a polyester-based resin, and the sheath part contains a polyamide-based resin composition containing a polyamide-based resin. The core-sheath conjugate fiber for artificial hair has a core-to-sheath area ratio of core:sheath=2:8 to 8:2 and includes a hollow part, and the area of the hollow part constitutes 7% or more and 40% or less of the area of a fiber cross section. A core-sheath conjugate fiber for artificial hair that has a touch close to that of human hair and good voluminousness and curl setting property, and a hair ornament product including the same, and a method for producing the same are provided.

Spoolable composite pipes for oil and gas flowlines may include an inner extruded tubular liner, a reinforcement layer surrounding the inner extruded tubular liner, and an outer extruded tubular cover surrounding the reinforcement layer. In these spoolable composite pipes, the inner extruded tubular liner may include an aliphatic polyketone. Internally lined pipes for oil and gas flowlines for oil and gas flowlines may include inner extruded tubular liner containing an aliphatic polyketone, and a carbon steel pipe surrounding the inner extruded tubular liner. The spoolable composite pipes and the internally lined pipes may be configured to operate at temperatures of up to about 110° C., and to carry hydrocarbons having an aromatic content of up to about 35% by volume of the total hydrocarbons content.

The instant disclosure relates to saponified pellets of an ethylene-vinyl ester based copolymer as well as a film and a multilayer structure formed therefrom. The saponified pellets of an ethylene-vinyl ester based copolymer has an ethylene content of 24-35 mole %, and the pellets have a turbidity of less than 300 NTU when dissolved in a 60% (w/w) methanol aqueous solution; or the pellet has an ethylene content of 36-48 mole %, and the pellets have a turbidity of less than 200 NTU when dissolved in a 80% (w/w) methanol aqueous solution. The present invention controls the amount of aggregates by controlling the turbidity of the saponified pellets of an ethylene-vinyl ester based copolymer dissolved in methanol aqueous to reduce the amount of gel produced after film formation.

A composite material is formed by combining an expandable polymer having a charge with another polymer having an opposite charge to produce. In particular, the composite material can be prepared by combining the polymers with a medium such as and water, and expanding the mixture using a treatment that expands the mixture to produce, for example, insoluble porous foam-like composites.

The present disclosure provides methods and compositions for directed to synthetic block copolymer proteins, expression constructs for their secretion, recombinant microorganisms for their production, and synthetic fibers (including advantageously, microfibers) comprising these proteins that recapitulate many properties of natural silk. The recombinant microorganisms can be used for the commercial production of silk-like fibers.

Various embodiments related to three dimensional printers, and reinforced filaments, and their methods of use are described. In one embodiment, a void free reinforced filament is fed into an conduit nozzle. The reinforced filament includes a core, which may be continuous or semi-continuous, and a matrix material surrounding the core. The reinforced filament is heated to a temperature greater than a melting temperature of the matrix material and less than a melting temperature of the core prior to drag the filament from the conduit nozzle.

A method for the active adjustment of the profile of a film produced with blown extrusion technology, a film obtained with such method and a reel resulting from the winding of the film.

The invention relates to a polymeric fibre derived from a copolymer of polyacrylonitrile and a comonomer. The fibre comprises a metal ion and/or silicon at from about 1 to about 15 wt %. A process for making the fibre is also described.

The present invention relates to a molded product manufactured from a high heat resistant bio-based polycarbonate ester. More specifically, the molded product has excellent heat resistance, and thus can be applied to various fields such as those of automobiles, electrical electronics, displays, aviation, machines, lighting, medicine or food.

A method of forming a balloon for a medical device is provided including extruding a cylindrical tube of silicone material, partially curing the cylindrical tube, inflating the cylindrical tube, and fully curing the balloon. The cylindrical tube is partially cured by exposing the cylindrical tube to a first ultraviolet light source. The cylindrical tube is inflated within a mold to form the balloon. The balloon is fully cured by exposing the balloon to a second ultraviolet light source.