A system for halogenating olefinic-based elastomer, the system comprising a first extruder, a first kneader vessel downstream of said first extruder and in fluid communication with said first extruder, a second extruder downstream of said first kneader vessel and in fluid communication with said first kneader vessel, a second kneader vessel downstream of said second extruder and in fluid communication with said second extruder; and a third extruder downstream of said second kneader vessel and in fluid communication with said second kneader vessel.

Continuous method including: mixing water and cementitous powder to form slurry; mixing the slurry and reinforcement fibers in a single pass horizontal continuous mixer to form fiber-slurry mixture, the mixer including an elongated mixing chamber having a reinforcement fiber inlet port, and upstream of the fiber inlet port is an inlet port to introduce water and cementitous powder together as one stream or at least two inlet ports to introduce water and dry cementitous powder separately as separate streams into the chamber, a rotating horizontal shaft/s within the chamber, part of the chamber for mixing the fibers and slurry and moving the fiber-slurry mixture to a mixture outlet; discharging the fiber-slurry mixture from the mixer outlet; forming and setting the fiber-slurry mixture on a moving surface; cutting the set mixture into fiber reinforced concrete panels and removing the panels from the moving surface.

Provided is a vacuum devolatilizer for use in a polymer manufacturing or processing plant. The devolatilizer comprises a vacuum chamber having an inlet for a polymer melt, an outlet for a polymer melt, a vacuum port through which volatiles may be removed and a stirrer shaft port for the entry of a stirrer shaft. The stirrer shaft passes through the at least one stirrer shaft port and extends into the vacuum chamber and carries an agitation means. The stirrer shaft seal is associated with each stirrer shaft port for sealing against the stirrer shaft and each stirrer shaft seal has an external portion outside the vacuum chamber. The devolatilizer is provided with a motor located outside of the vacuum chamber for rotating shaft and comprises means for blanketing the external portion of the stirrer shaft seal with a low oxygen content gas or vapor, e.g., nitrogen, helium, steam, or carbon dioxide.

A method for treating a mixture in a single-shaft or multi-shaft mixer (M), especially a kneader-mixer, especially for preparing a spinning solution. A solvent or solvent mixture is added to the product over the length of a product chamber in order to reduce a viscosity of the solvent or of the mixture and to increase an evaporative capacity. The viscosity of the solution or of the mixture is determined and/or modified in predetermined locations in the product chamber.

A method for treating a mixture in a single-shaft or multi-shaft mixer (M), especially a kneader-mixer, especially for preparing a spinning solution. A solvent or solvent mixture is added to the product over the length of a product chamber in order to reduce a viscosity of the solvent or of the mixture and to increase an evaporative capacity. The viscosity of the solution or of the mixture is determined and/or modified in predetermined locations in the product chamber.

The method of producing a colored powder of a polymeric material includes the steps of selecting a feedstock of said polymeric material, pulverizing said polymeric material in a pulverizer to produce a powder, moving the powder directly from the pulverizer to a mixer; spraying a liquid formulation including a colorant into the powder within the mixer, and mixing the liquid formulation and powder.

The method of producing a colored powder of a polymeric material includes the steps of selecting a feedstock of said polymeric material, pulverizing said polymeric material in a pulverizer to produce a powder, moving the powder directly from the pulverizer to a mixer; spraying a liquid formulation including a colorant into the powder within the mixer, and mixing the liquid formulation and powder.

A method of manufacturing a particulate polymer includes introducing a polymer latex into a vessel; distributing the polymer latex in the vessel to a coagulator via a distribution member and a redistribution member; introducing a coagulant and steam into the coagulator; breaking the polymer latex; and separating the particulate polymer. The distribution member and the redistribution member are mounted on an agitator shaft of the coagulator, and are configured such that the polymer latex in the vessel enters the open top and exits the open bottom of the distribution member and flows into the redistribution member. The polymer latex in the redistribution member then overflows into the coagulator.

A method for manufacturing an elastic layer on site provides for downsizing an aged artificial turf into artificial turf fragments, processing the artificial turf fragments for generating a plastic melt, after the plastic melt solidifies, downsizing the solidified plastic melt into plastic particles, mixing the plastic particles with a binding agent for forming a fluid elastic composite, and applying the fluid elastic composite on a substrate at the site for forming the elastic layer.

The invention relates to a method for manufacturing a composite product comprising organic natural fiber material and matrix material, wherein the method comprises mixing the organic natural fiber material with the matrix material in a primary mixing stage to form a mixture. The primary mixing stage comprises a contacting step in which the organic natural fiber material comes in contact with the matrix material that is at least partly in a form of melt, and bulk density of the organic natural fiber material is less than 500 kg/m.sup.3. The method further comprises forming a composite product comprising the mixture. Further, the invention relates to a composite product, a use of the composite product, and a system for manufacturing a composite product.