Alkoxylated ethylene glycol diamine bottoms products for rigid urethane foams
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United States of America Patent
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Oct 31, 1989
Grant Date -
N/A
app pub date -
Oct 30, 1987
filing date -
Oct 30, 1987
priority date (Note) -
Expired
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Abstract
Novel amino polyols made by alkoxylating ethylene glycol diamine bottoms products, such as triethylene glycol diamine bottoms products, and tetraethylene glycol diamine bottoms products are described. For example, these bottoms products, alone or together, maybe propoxylated in a non-catalytic reaction to give amino polyols that are useful in producing rigid polyurethane foams. The resultant foams have better K-factors and a higher percentage of closed cells than comparable foams made with conventional amino polyols.
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