Diol blends and methods for making and using the same
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United States of America Patent
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Oct 16, 2001
Grant Date -
N/A
app pub date -
Sep 10, 1999
filing date -
Sep 10, 1999
priority date (Note) -
Expired
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Abstract
Novel diol blends are disclosed. The blends are comprised of an aromatic diol portion derived from dihydric phenol and an aliphatic diol portion in a ratio of aromatic to aliphatic of 5:95 to 95:5. The aromatic portion is the reaction product of a dihydric phenol and one or more alkylene carbonates using a stoichiometric excess of carbonate. Methods for preparing these diol blends are also disclosed, as are methods for using these compounds in the preparation of cast elastomers. Cast elastomers prepared from these blends are also disclosed; the elastomers have physical and mechanical properties that make them appropriate for use in many demanding applications.
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