Producing a nano-composite, useful e.g. as coating, comprises contacting a nano-particle and a dispersing agent containing nano-particle dispersion with e.g. a supercritical liquid extracting agent and a polymer melt

摘要

Production of a nano-composite (1) exhibiting at least a thermoplastic matrix polymer (2) and a nano-particle dispersed in the matrix polymer, comprises contacting a nano-particle and at least a dispersing agent exhibiting the nano-particle dispersion (4) with at least a supercritical or compressed liquid extracting agent (6) immiscible with the dispersing agent (3), optionally at least a boundary surface-active aggregate (7), a polymer melt exhibiting the matrix polymer and optionally at least a further aggregate (10), where the process takes place in at least a contact arrangement (5). An independent claim is included for a device for the production of a nano-composite comprising at least a contact arrangement for the extraction of nano-particles from a nano-particle dispersion with a supercritical or compressed liquid, which is immiscible with the dispersing agent of the nano-particle dispersion, as extracting agent and optionally for the dispersion of the nano-particles, which after extraction are contained in the extracting agent, in the polymer melt exhibiting the matrix polymer.