发明授权
US06348515B1 Blowing agent blends 失效
发泡剂混合

Blowing agent blends
摘要:
Foam blowing agents blends of HFC-134a and a pentane selected from n-pentane, i-pentane and i-pentane/cyclopentane are provided, as are polyol premixes and polyurethane foam compositions containing such blends.
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