The present invention relates to an improved process for manufacturing an extruded composite product comprising natural fibers and a thermoplastic polymer. According to the present invention, mixing as well as crosslinking takes place inside an extruder. The natural fibers may be provided for example in the form of pulp or wood particles.

A single-cavity multi-runner applied to oriented arrangement extrusion molding equipment of graphene fibers includes a first extrusion cavity, the first extrusion cavity includes a first inlet and a first outlet arranged opposite to each other; a first molding cavity, the first molding cavity is arranged in an inclined manner, a second inlet is arranged at the high position end, a second outlet is arranged at the low position end of the first molding cavity, and the second inlet is connected to the first outlet; flow channels, the flow channels are formed by dividing the first molding cavity using baffle plates arranged horizontally and along the flowing direction of a heat-conducting mixture; a second molding cavity, the second molding cavity includes a third inlet and a third outlet arranged opposite to each other, the third inlet is connected to the outflow end of the flow channels.

A single-cavity multi-runner applied to oriented arrangement extrusion molding equipment of graphene fibers includes a first extrusion cavity, the first extrusion cavity includes a first inlet and a first outlet arranged opposite to each other; a first molding cavity, the first molding cavity is arranged in an inclined manner, a second inlet is arranged at the high position end, a second outlet is arranged at the low position end of the first molding cavity, and the second inlet is connected to the first outlet; flow channels, the flow channels are formed by dividing the first molding cavity using baffle plates arranged horizontally and along the flowing direction of a heat-conducting mixture; a second molding cavity, the second molding cavity includes a third inlet and a third outlet arranged opposite to each other, the third inlet is connected to the outflow end of the flow channels.

Thin PTFE layers are described having little or no node and fibril microstructure and methods of manufacturing PTFE layers are disclosed that allow for controllable permeability and porosity of the layers. In some embodiments, the PTFE layers may act as a barrier layer in an endovascular graft or other medical device.

Thin PTFE layers are described having little or no node and fibril microstructure and methods of manufacturing PTFE layers are disclosed that allow for controllable permeability and porosity of the layers. In some embodiments, the PTFE layers may act as a barrier layer in an endovascular graft or other medical device.

A liquid colorant for use in molding or extruding plastic products comprises pigment dispersed in cottonseed oil.

A liquid colorant for use in molding or extruding plastic products comprises pigment dispersed in cottonseed oil.

Method for the manufacture of a colored polymer composition comprising a polymer, a release agent and a colorant, the method comprising the steps of feeding a solid form of a release agent composition comprising said release agent and said colorant to a feed section of a melt mixing device, feeding said polymer to said melt mixing device and mixing said release agent composition and said polymer in said melt mixing device at a temperature above the melting temperature of said polymer, whereinsaid colorant is a pigment, or a dye which is soluble in said release agent, said polymer comprises or consists of polycarbonate, the release agent is selected from the group consisting of penta-erythritol tetra stearate, glycerol monostearate, glycerol tristearate and mixtures thereof.

The present invention relates to an improved process for manufacturing an extruded composite product comprising natural fibers and a thermoplastic polymer. According to the present invention, mixing as well as crosslinking takes place inside an extruder. The natural fibers may be provided for example in the form of pulp or wood particles.

The present invention relates to an improved process for manufacturing an extruded composite product comprising natural fibers and a thermoplastic polymer. According to the present invention, mixing as well as crosslinking takes place inside an extruder. The natural fibers may be provided for example in the form of pulp or wood particles.