An apparatus and process to maintain control of the temperature of low-melting compounds, high melt flow polymers, and thermally sensitive materials for the pelletization of such materials. The addition of a cooling extruder, and a second melt cooler if desired, in advance of the die plate provides for regulation of the thermal, shear, and rheological characteristics of narrow melting-range materials and polymeric mixtures, formulations, dispersions or solutions. The apparatus and process can then be highly regulated to produce consistent, uniform pellets of low moisture content for these otherwise difficult materials to pelletize.

A thermoregulation system of rotating metal cylinders in plants for the extrusion and conversion/transformation of plastic films includes heating elements applied to each rotating cylinder, wherein the heating elements are infrared heating elements, and wherein the rotating cylinder includes a metal tube rotating around a fixed shaft, which is rigidly connected to two side plates.

The invention relates to pelletizing thermoplastic road marking substance containing light-reflective agents, such as glass beads. A dry formulation of the ingredients is transported to a heating station, where the dry mix is heated to a molten state. The melted mix is extruded into form pockets of a moving conveyor. As the conveyor moves through a cooling station, the molten substance in the form pockets solidifies forming individual pellets. The pellets are then removed from the form pockets, packaged and shipped to customers.

The invention relates to pelletizing thermoplastic road marking substance containing light-reflective agents, such as glass beads. A dry formulation of the ingredients is transported to a heating station, where the dry mix is heated to a molten state. The melted mix is extruded into form pockets of a moving conveyor. As the conveyor moves through a cooling station, the molten substance in the form pockets solidifies forming individual pellets. The pellets are then removed from the form pockets, packaged and shipped to customers.

A method of separating a composite material stack comprising multiple elements (12) in contact with one another is discloses. Each element (12) comprises reinforcement fibers and an uncured resin matrix, and the method comprises the steps of temperature treating the stack and/or applying a stress to the stack to separate the elements.

The present invention relates to self-foaming hot melt adhesive compositions and methods of making and using the same. Self-foaming hot melt adhesive compositions are formed by admixing a dispersion concentrate including a chemical blowing agent and a compatible carrier (liquid or molten) with a molten base hot melt adhesive composition at a temperature below the decomposition temperature of the chemical blowing agent. The resolidified material is processed through a device that heats the material above the decomposition temperature of the chemical agent and cools it below such temperature before being dispensed. The device preferably includes sensors and a controller configured to prevent the material from accumulating an adverse thermal history during processing.

A compostable material and methods of forming the same are described. The compostable material includes about 90% to about 99% by weight of a compostable polymeric material and a nucleating agent. The compostable material has a degree of crystallinity of about 5% to about 45%.

In a blow-molding apparatus, a cooling device and a heating device are each driven by being supplied with electricity of a predetermined voltage from a supply power source. The blow-molding apparatus comprises: a monitoring device configured to constantly monitor fluctuation of the predetermined voltage; and an output automatic control mechanism configured to, in a case where the predetermined voltage monitored by the monitoring device fluctuates beyond a normal range, automatically fluctuate an output of at least one of the heating device and the cooling device to keep the output in a certain range, thereby adjusting at least one of the preform temperature and the ambient temperature to fall within a normal temperature range.

Technologies are described for a method of making an encapsulated reactant having a desired shape or size. The method comprises providing solid reactant particles and an encapsulating material. The encapsulating material is heated above its solidification temperature to form a molten, semi-solid, or liquid encapsulating material. The solid reactant particles are added to the molten, semi-solid, or liquid encapsulating material and mixed to disperse the solid reactant particles in the encapsulating material and form a mixture. The mixture may be extruded or formed into the desired shape or size of the encapsulated reactant, or the mixture may be solidified and extruded, granulated, shredded, ground, or pressed into the desired shape or size.

Technologies are described for a method of making an encapsulated reactant having a desired shape or size. The method comprises providing solid reactant particles and an encapsulating material. The encapsulating material is heated above its solidification temperature to form a molten, semi-solid, or liquid encapsulating material. The solid reactant particles are added to the molten, semi-solid, or liquid encapsulating material and mixed to disperse the solid reactant particles in the encapsulating material and form a mixture. The mixture may be extruded or formed into the desired shape or size of the encapsulated reactant, or the mixture may be solidified and extruded, granulated, shredded, ground, or pressed into the desired shape or size.