Preparation of recyclate polyols, and the use thereof in the preparation of polyurethanes
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United States of America Patent
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Oct 18, 1994
Grant Date -
N/A
app pub date -
Oct 7, 1993
filing date -
Oct 12, 1992
priority date (Note) -
Expired
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Abstract
A process for the preparation of recyclate polyols obtained by glycolysis of polyurethanes and/or polyurea-polyurethanes comprises metering in monofunctional and/or difunctional glycidyl ethers over the entire course of the reaction; the low-amine recyclate polyols obtained in this way are used for the preparation of cellular or noncellular polyurethanes.
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