专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2015056377A1 METHODS AND MATERIALS FOR DEPOLYMERIZING POLYESTERS 审中-公开
标题翻译：聚酯多元醇的方法和材料
公开(公告)号：WO2015056377A1
公开(公告)日：2015-04-23
申请号：PCT/JP2014/004047
申请日：2014-08-01
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM JAPAN, LTD.
发明人： ALLEN, Robert David , BAJJURI, Krishna Mohan , BREYTA, Gregory , HEDRICK, James Lupton , LARSON, Carl Eric
IPC分类号： C07C51/09 , C08G63/00 , C08J11/18 , C08J11/24
CPC分类号： C08J11/24 , C07C51/09 , C08J11/28 , C08J2367/02 , C08J2367/03 , Y02W30/706 , C07C63/26
摘要： Provided is a method of depolymerizing polyesters from post-consumer products, such as beverage bottles, to produce a high purity reaction product. For the depolymerization reaction, the polyesters are reacted with an alcohol having 2 to 5 carbons and an amine organocatalyst at a temperature of about 150 degrees C to about 250 degrees C. In one application, the use an organocatalyst with a boiling point significantly lower than the boiling point of the reactant alcohol allows for the ready recycling of the amine organocatalyst. In another application, performing the depolymerization reaction under pressure at a temperature above that of the alcohol allows for accelerated depolymerization rates and the recovery of the organocatalyst with no further heat input. In a further application, glycolytic depolymerization of poly(ethylene terephthalate) (PET) from post-consumer beverage bottles produces a pure reaction product of bis(2-hydroxyethyl)terephthalate (BHET), which may in turn be used to produce high purity beverage bottle grade PET, in a closed loop process with minimal output and waste.
摘要翻译：提供了一种从消费后产品如饮料瓶中解聚聚酯的方法，以产生高纯度的反应产物。对于解聚反应，聚酯在约150℃至约250℃的温度下与具有2至5个碳的醇和胺有机催化剂反应。在一个应用中，使用沸点显着低于反应物醇的沸点允许胺有机催化剂的容易再循环。在另一个应用中，在高于醇的温度下在压力下进行解聚反应允许加速解聚速率和有机催化剂的回收，而没有进一步的热输入。在进一步的应用中，来自消费后饮料瓶的聚（对苯二甲酸乙二醇酯）（PET）的糖酵解解产生了双（2-羟乙基）对苯二甲酸酯（BHET）的纯反应产物，其可以用于生产高纯度饮料瓶级PET，在闭环过程中具有最小的产出和浪费。

IPRDB

热门服务

关于我们

友情链接

联系方式