METHOD FOR PREPARING A (CO)POLYESTER
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United States of America
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Feb 3, 2022
app pub date -
Dec 5, 2019
filing date -
Dec 5, 2019
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Abstract
The present invention relates to a process for producing a (co)polyester, wherein the (co)polyester at least partially consists of 1,4-butylene dicarboxylate units, in a degassing plant, wherein the crude (co)polyester is degassed in the presence of 0.1% to 5% by weight, based on the total weight of the input materials, of an entraining agent at a pressure between 5 to 300 mbar.
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