Methods Of Producing Amine-Terminated Caprolactone Polymers And Uses Of The Produced Polymers
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United States of America Patent
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Issued Date -
Feb 7, 2008
app pub date -
Oct 17, 2005
filing date -
Oct 15, 2004
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Abandoned
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Abstract
A method for the preparation of an amine-terminated caprolactone polymer having at least two terminal ends with a primary amine located thereon, comprising the steps of: (a) using a polycarboxylic acid as an initiator in the ring opening poly- merization of epsilon-caprolactone to produce a polycaprolactone polymer having at least two terminal ends with a carboxylic acid located thereon; and then (b) reacting the product of step (a) with a polyamine at a temperature of above 50.degree. C. to produce an amine-terminated polycaprolactone polymer.
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