Patents Assigned to Edulan A/S
  • Method for the manufacture of a heat insulating foamed plastic material and blowing agent to be used by the method
    Patent number: 5266251
    Abstract: Method for the manufacture of a heat insulating foamed plastic material by foaming of a plastic material or plastic precursor material by means of a blowing agent where a mixture of krypton and xenon is at least partially used as a blowing agent. When using a mixture of krypton and xenon as the blowing agent, the ecological damages, particularly to the ozone layer, caused by the conventional CFC gases are avoided while a good heat insulating capacity is obtained at the same time.
    Type: Grant
    Filed: July 20, 1992
    Date of Patent: November 30, 1993
    Assignee: Edulan A/S
    Inventor: Torben H. Jensen