| 摘要 |
<p>The invention comprises a blowing agent composition useful in the production of insulating styrenic foams comprising ethylchoride, propane and a halogenated ethane selected from the group consisting of 1,1,1-trifluoro-2-fluoroethane, 1-chloro-1,1-difluoro-2,2,2-trifluoroethane,and 1-chloro-1,1-difluoroethane The invention further comprises a method to produce dimensionally stable insulating styrenic foams using the blowing agent composition. The blowing agent composition has a significantly reduced ozone reactivity potential compared to previous commercial styrenic foam blowing agents.</p> |
