Device to produce polyurethane articles, relative method and polyurethane articles thus obtained

A method to produce, inside a mold, at least one polyurethane article covered with a film, wherein polyurethane is injected inside a molding cavity defined by a coupling of a female part and a male part, at least one of the two parts, male and female, being heated, wherein there are present, in association with the perimeter of said female part, means able to perform a connection function in substantial cooperation with a zone of discontinuity between said female part and said male part, said means allowing to form a perimeter undercut in correspondence with an edge of said article, wherein, in order to insert a segment of said film into the mold, the method provides that said means are taken first to a position outside said mold so that said segment of film can be loaded and clamped onto at least part of a perimeter of said means, then that said means are translated to a position inside the mold and positioned at least partly overlapping the perimeter of said female part.

At least one polyurethane article having high surface quality and obtained through injection and molding, in a single step, inside a mold comprising at least a male part and a female part, wherein at the end of the molding process the at least one article has a visible surface of a finished article which is lacking of any signs, prints or other marks of any type which could have been produced by vacuum means inside the mold, and the at least one article has a perimeter edge equipped with a perimeter undercut, the formation of which is at least partly defined by rigid auxiliary means able to perform a function of connection in substantial cooperation with a zone of discontinuity between the female part and the male part of the mold.