Patents Assigned to Commer, S.p.A.
  • Process and apparatus for coinjection molding of articles having complex shape
    Patent number: 6251326
    Abstract: An article having complex geometrical shape is obtained by consecutively coinjection molding a first and a second material substantially without stopping time between the two injections. Pressure, temperature and mass flow rate are controlled to obtain a homogeneous distribution of the several flows of injected material and to have them meet in a fluid condition and melt together at the meeting point.
    Type: Grant
    Filed: June 20, 1996
    Date of Patent: June 26, 2001
    Assignee: Commer, S.p.A.
    Inventors: Dante Siano, Luigi Vecchiarino