초록 ▼

An uncrosslinked, closed cell, low density ethylenic polymer foam having a density of less than 150 kg/m3 is prepared from, for example, uncrosslinked low density polyethylene using inorganic blowing agents, such as carbon dioxide, argon, or mixtures thereof. A process for preparing such uncrosslink

An uncrosslinked, closed cell, low density ethylenic polymer foam having a density of less than 150 kg/m3 is prepared from, for example, uncrosslinked low density polyethylene using inorganic blowing agents, such as carbon dioxide, argon, or mixtures thereof. A process for preparing such uncrosslinked, closed cell, low density ethylenic polymer foam comprising extruding a ethylenic polymer of suitable melt tension using a 100 percent inorganic blowing agent, such as carbon dioxide, argon, or mixtures thereof, and the foams produced with this process are also disclosed.

대표청구항 ▼

An uncrosslinked, closed cell, low density ethylenic polymer foam prepared from a foaming composition comprising an uncrosslinked low density ethylenic polymer having a melt index of less than about 25 grams per 10 minutes and a melt tension between about 2.0 grams and about 9.0 g and an inorganic h

An uncrosslinked, closed cell, low density ethylenic polymer foam prepared from a foaming composition comprising an uncrosslinked low density ethylenic polymer having a melt index of less than about 25 grams per 10 minutes and a melt tension between about 2.0 grams and about 9.0 g and an inorganic halogen-free blowing agent.