PROCESS FOR PRODUCING HEAT INSULATING PLASTIC FOAM AND FOAMING AGENT USABLE IN THE PROCESS
PCT No. PCT/DK90/00347 Sec. 371 Date Jul. 20, 1992 Sec. 102(e) Date Jul. 20, 1992 PCT Filed Dec. 28, 1990 PCT Pub. No. WO91/09901 PCT Pub. Date Jul. 11, 1991.Method for the manufacture of a heat insulating foamed plastic material by foaming of a plastic material or plastic precursor material by mean...
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Zusammenfassung: | PCT No. PCT/DK90/00347 Sec. 371 Date Jul. 20, 1992 Sec. 102(e) Date Jul. 20, 1992 PCT Filed Dec. 28, 1990 PCT Pub. No. WO91/09901 PCT Pub. Date Jul. 11, 1991.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. |
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