Block copolymers from macrocyclic oligoesters and dihydroxyl-functionalized polymers
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United States of America Patent
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Aug 20, 2002
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N/A
app pub date -
Jul 16, 2001
filing date -
Jul 16, 2001
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Abstract
Block copolymers are prepared from polymerization of a macrocyclic oligoester and a dihydroxyl-functionalized polymer at an elevated temperature in the presence of a polymerization catalyst.
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