Methods of transforming an ultra-high molecular weight polymer into a processable material and compositions resulting from those methods. The methods may include a combination of applying a shear force to a polymer and heating the polymer. Also described are methods for using the compositions.

Methods of transforming an ultra-high molecular weight polymer into a processable material and compositions resulting from those methods. The methods may include a combination of applying a shear force to a polymer and heating the polymer. Also described are methods for using the compositions.

An apparatus for producing plastic containers is provided, comprising a heating device that heats plastic preforms, and including a shaping device provided downstream of this heating device in the transport direction of the plastic preforms, which shaping device shapes the plastic preforms into the plastic containers, wherein a tempering device for tempering the plastic preforms heated by the heating device is provided in the transport direction of the plastic preforms between the heating device and the shaping device, which tempering device has at least one tempering unit provided on a carrier rotatable about a predetermined rotary axis, and which tempering unit has at least two contacting devices, between which at least one section of the plastic preform can be received, which contacting devices can be moved in relation to one another along a predetermined direction.

An apparatus for producing plastic containers is provided, comprising a heating device that heats plastic preforms, and including a shaping device provided downstream of this heating device in the transport direction of the plastic preforms, which shaping device shapes the plastic preforms into the plastic containers, wherein a tempering device for tempering the plastic preforms heated by the heating device is provided in the transport direction of the plastic preforms between the heating device and the shaping device, which tempering device has at least one tempering unit provided on a carrier rotatable about a predetermined rotary axis, and which tempering unit has at least two contacting devices, between which at least one section of the plastic preform can be received, which contacting devices can be moved in relation to one another along a predetermined direction.

In one or more rubber mixtures for vehicle tires, production processes and systems are provided for control of water content in a rubber mixture as a function of controlling temperature and water flow rate.

In one or more rubber mixtures for vehicle tires, production processes and systems are provided for control of water content in a rubber mixture as a function of controlling temperature and water flow rate.

A process for grinding materials includes grinding a frozen plastic material to form a first-stage plastic material in a first mill. The first-stage plastic material is processed in a second mill to form material having a particle size less than about 100 ?m.

A pellet production method comprising: an operation in which a strand comprising a glass-fiber-reinforced polyamide resin composition containing 50 mass % to 80 mass % of glass fiber is extruded from an orifice at a die; an operation in which the strand is drawn into water within a tank and is cooled; and an operation in which the cooled strand is cut to obtain a pellet; wherein an angle of incidence at which the strand enters the water within the tank is not less than 70? but is less than 90?; and wherein a ratio of a diameter of the pellet to a diameter of the orifice (diameter of the pellet/diameter of the orifice) is 0.65 to 0.97.

A method for manufacturing a plastic composition, comprising: mixing thermoplastic polymer material particles and thermoset composition particles comprising cured thermoset polymer, the mixing comprising rising the temperature of the composition and at least partly melting the surface of thermoplastic polymer material particles, and simultaneously mixing the particles allowing thermoset composition particles adhere to the thermoplastic polymer material particles, and cooling the composition.

The invention relates to an apparatus for cooling a plurality of preforms made of thermoplastic material which continuously move on a conveyor belt. The apparatus includes a cylindrical casing with a vertical extension formed by two coaxial cylinders, such a casing contains a guide crossed by a chain or a cable for transporting the preforms therein. The guide, which forms a closed path, comprises a first helical stretch, which raises from the lower plane starting from a station in which the preforms coming from a conveying device are hooked by the chain or by the cable, a second straight stretch, which returns the preforms to the lower plane once they have reached the upper plane, and a third flat stretch at the height of the lower plane, which returns the preforms to the arrival station. The helical stretch of the guide is contained within a cooling tunnel formed in the gap between the two walls of the outer cylinder and the inner cylinder of said casing. The cooling air is conveyed within the cooling tunnel by a specific manifold which is located within the casing.