Production of transparent plastics plate with over-injected opaque plastics region, useful e.g. in plasma TV screens, by injecting and compressing transparent material in mold, then injecting opaque material

摘要

Production of plates (1) of transparent plastics (A) with over-injected parts (2) of opaque plastics (B) is carried out in a mold first and second molding stations with respective first and second injector(s) oriented directly towards peripheral region(s) of the plate, by: (a) molding (A) at the first station by injection-compression molding, to limit the stresses at the injection point and provide a transparent plate (1) having indications or markings of the injection; and (b) injecting (B) at the second station using the second injector(s) to form the overmolded part (2) covering the indications or markings of the first injection.