Polyolefin foams made with isopentane-based blowing agents
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United States of America Patent
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May 16, 2006
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N/A
app pub date -
Jul 2, 2002
filing date -
Jul 2, 2002
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Abstract
A blowing agent blend for making polyolefin foams comprising isopentane and at least one co-blowing agent. The co-blowing agent is either a physical co-blowing agent having a boiling point less than 28.degree. C., or a chemical co-blowing agent, or combinations thereof. The blowing agent blend comprises less than about 99 mol % isopentane.
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