Polyols for the production of rigid polyurethane foams
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United States of America Patent
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Apr 1, 1986
Issued Date -
N/A
app pub date -
Jan 10, 1985
filing date -
Feb 21, 1984
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Expired
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Abstract
A polyol comprising an alkoxylated modified resole, said modified resole being formed by the reaction of (i) a phenolic compound and/or mixtures of homologues thereof, (ii) urea and/or melamine, (iii) an organic primary and/or secondary amine group-containing compound, and (iv) an aldehyde.
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