PROCESS FOR THE SURFACE TREATMENT OF METAL MOULDS FOR THE INJECTION OF PLASTIC MATERIALS THEREINTO AND MOULDS TREATED THEREWITH

摘要

A process consisting of the treatment of moulds for the production of plastic materials (injection, compression, rotational moulding, etc) characterised by the fact that such process envisages the application in the mould of an alcohol-based solution containing an active agent from the silane family capable of lending the metal surface a property consisting in the non-adhesion to molten polymer, forming an ultra-thin, extremely resistant and long-lasting layer. The invention also relates to the mould for the production of plastic materials to which the treatment claimed herein is applied.