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    • 2. 发明申请
    • POLYMER MANUFACTURING PROCESS
    • 聚合物制造工艺
    • WO2008121337A1
    • 2008-10-09
    • PCT/US2008/004079
    • 2008-03-28
    • BEAULIEU GROUP, LLC D/B/A BEAULIEU OF AMERICASALSMAN, Robert, Keith
    • SALSMAN, Robert, Keith
    • C08G64/00
    • C08G63/916C08G18/30C08G18/4252C08G2101/0008C08G2101/0083C09D5/02C09D5/03C09D11/30
    • Embodiments relate to a relatively rapid transesterification process including transesterifying condensation polymers such as polyethylene terephthalate (PET), or other polyesters used in commerce, with a modifying monomer mix containing other monomers to manufacture new polymers containing the pre-condensed moieties. The process preferably only involves transesterification as a reaction mechanism. The process preferably produces a rapid buildup of molecular weight and/or polymer uniformity by the high temperature transesterification of the condensation polymer with the modifying monomer mixture. The process can be performed in any suitable vessel including an extrusion line, and it has the advantage of greatly reduced cycle times over currently used condensation polymer utilization processes such as the recycling of PET into other materials.
    • 实施方案涉及相对快速的酯交换方法,包括将缩合聚合物如聚对苯二甲酸乙二醇酯(PET)或商业使用的其它聚酯与含有其它单体的改性单体混合物酯交换反应以制备含有预缩合部分的新聚合物。 该方法优选仅涉及酯交换作为反应机理。 该方法优选通过缩合聚合物与改性单体混合物的高温酯交换产生分子量和/或聚合物均匀性的快速累积。 该方法可以在包括挤出生产线的任何合适的容器中进行,并且其优点在于比目前使用的缩合聚合物利用过程大大缩短了循环时间,例如将PET再循环到其它材料中。