Patent ID: 6682696
Filing Date: 2004-01-27
Classification: A61L,B65B

Abstract:
Method of sterilizing package material having a plastic surface by hydrogen peroxide in a gaseous phase being supplied to the previously heated plastic surface, wherein the plastic surface, comprising a polyethylene terephthalate, is heated to a temperature which is higher than the dew point for the hydrogen peroxide in gaseous phase, wherein the dew point is the temperature that the gaseous hydrogen peroxide must be cooled to in order to obtain a condensation, and the entire sterilization procedure is performed with the hydrogen peroxide in a gaseous phase such that any residual hydrogen peroxide remaining on said plastic surface is 3 ppm or less after two seconds of ventilation time with the application of sterile air at 80Â° C. having a flow rate of 60 gk/h.