Crosslinked branched polyesters
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United States of America Patent
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Jul 15, 2003
Grant Date -
Feb 13, 2003
app pub date -
Jul 30, 2002
filing date -
Apr 26, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A gum base comprising a crosslinked branched polyester gel prepared from the process comprising: a) providing a first pre-gel composition having carboxyl end groups; b) providing a second pre-gel composition having hydroxyl end groups; c) removing either or both of the first and second pre-gel compositions from their respective reactors; d) combining the first and second pre-gel compositions to form a mixture; and e) processing the mixture in an extruder, a continuous processor, or a container thereby providing a crosslinked branched polyester gel.
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