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公开(公告)号：US07524921B2
公开(公告)日：2009-04-28
申请号：US11638978
申请日：2006-12-14
申请人： John Harvey Eng , Emily A. Blum , Daniel Albert Green , Carl J. Giardino , Gene Parrish , Robert E. Trotter , Gary J. Wilson
发明人： John Harvey Eng , Emily A. Blum , Daniel Albert Green , Carl J. Giardino , Gene Parrish , Robert E. Trotter , Gary J. Wilson
CPC分类号： C08G63/78 , Y10T29/49005
摘要： This invention relates to a continuous process for production of poly(trimethylene terephthalate), wherein gaseous 1,3-propanediol by-product resulting from the process is condensed in a condenser, the total amount of any trimethylene terephthalate cyclic dimer and poly(trimethylene terephthalate) in the condensed by-product 1,3-propanediol is adjusted, and a portion of the condensed by-product is recycled to the condenser while another portion is recycled back into the process.
摘要翻译： 本发明涉及生产聚（对苯二甲酸丙二醇酯）的连续方法，其中由该方法得到的气态1,3-丙二醇副产物在冷凝器中冷凝，任何三亚甲基对苯二甲酸酯环状二聚体和聚（对苯二甲酸丙二醇酯 ）在缩合的副产物1,3-丙二醇中进行调节，一部分冷凝的副产物被再循环到冷凝器中，而另一部分被循环回到该方法中。
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公开(公告)号：US07531617B2
公开(公告)日：2009-05-12
申请号：US11638919
申请日：2006-12-14
申请人： John Harvey Eng , Emily A. Blum , Daniel Albert Green , Carl J. Giardino , Gene Parrish , Robert E. Trotter , Gary J. Wilson
发明人： John Harvey Eng , Emily A. Blum , Daniel Albert Green , Carl J. Giardino , Gene Parrish , Robert E. Trotter , Gary J. Wilson
CPC分类号： C08G63/78 , C08G63/183 , Y10T29/49005
摘要： This invention relates to a continuous process for production of poly(trimethylene terephthalate), wherein gaseous 1,3-propanediol by product resulting from the process is condensed in a condenser, and a portion of the condensed by-product is recycled back into the process.
摘要翻译： 本发明涉及用于生产聚（对苯二甲酸丙二醇酯）的连续方法，其中由该方法产生的产物中的气态1,3-丙二醇在冷凝器中冷凝，并且一部分冷凝副产物再循环回该方法 。
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公开(公告)号：US07504474B2
公开(公告)日：2009-03-17
申请号：US11638917
申请日：2006-12-14
申请人： John Harvey Eng , Emily A. Blum , Daniel Albert Green , Gene Parrish , Robert E. Trotter , Gary J. Wilson
发明人： John Harvey Eng , Emily A. Blum , Daniel Albert Green , Gene Parrish , Robert E. Trotter , Gary J. Wilson
CPC分类号： C08G63/78 , C08G63/183 , Y10T428/2913 , Y10T428/2929 , Y10T428/2931
摘要： This invention relates to a continuous process for production of poly(trimethylene terephthalate), wherein gaseous 1,3-propanediol by product resulting from the process is condensed in a condenser, and a portion of the condensed by-product is recycled to the condenser while anther portion is recycled back into the process.
摘要翻译： 本发明涉及一种生产聚（对苯二甲酸丙二醇酯）的连续方法，其中由该方法得到的产物中的气态1,3-丙二醇在冷凝器中冷凝，一部分冷凝的副产物再循环至冷凝器，而 花药部分被循环回到该过程中。
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