Method for producing highly condensed solid-phase polyesters
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United States of America Patent
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Jul 12, 2011
Grant Date -
Aug 2, 2007
app pub date -
Feb 25, 2005
filing date -
Mar 4, 2004
priority date (Note) -
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Abstract
The invention relates to a continuous or discontinuous method for the production of highly condensed polyesters in the solid state, comprising a crystallization of a polyester material, wherein the crystallization is carried out in the presence of a gas with a dew point of (less than or equal to) ≦approximately −10° C. The invention also relates to a method for the production of polyester formed bodies using the polyester material obtained for the production of bottles, films and high strength threads.
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