公开(公告)号：US6127493A

公开(公告)日：2000-10-03

申请号：US185998

申请日：1998-11-04

申请人： Charles J. Maurer ,  Gordon Shaw ,  Vicky S. Smith

发明人： Charles J. Maurer ,  Gordon Shaw ,  Vicky S. Smith

IPC分类号： C08F2/00 ,  C08G63/183 ,  C08G63/78 ,  C08F6/00

CPC分类号： C08G63/78 ,  C08G63/183 ,  Y02P20/582

摘要： A process is disclosed for the preparation of a polyester polymer or polyester copolymer under superatmospheric pressure conditions in a pipe or tubular reaction under turbannular flow conditions. Reaction material having a glycol equivalents to carboxylic acid equivalents mole ratio of from 1.0:1 to 1.2:1, together with a superatmospheric dense gaseous medium are fed co-currently to the reactor. Dicarboxylic acid and/or diol raw materials may be injected into any of the reaction zones in the process during operation to achieve the overall desired mole ratio balance. The process operates at temperatures of from about 220.degree. C. to about 320.degree. C., with turbannular flow achieved before the polymer product and gas exit the reactor process. The pressure in the reaction zones can be in the range from 15 psia to 2500 psia. A polymer product having a DP of a greater than 40, more preferably at least about 70, is achieved by the transfer of water from the reacting material polymer melt to the gaseous medium in the reactor.

摘要翻译： 公开了一种在超大气压条件下在管道或管状反应中在涡流流动条件下制备聚酯聚合物或聚酯共聚物的方法。 将具有1.0:1至1.2:1的羧酸当量摩尔比的二醇当量的反应物质与超大气密度气体介质一起同时加入到反应器中。 在操作过程中，可将二羧酸和/或二醇原料注入任何反应区，以达到总体所需的摩尔比平衡。 该方法在约220℃至约320℃的温度下操作，在聚合物产物和气体离开反应器过程之前达到涡旋流。 反应区中的压力可以在15psia至2500psia的范围内。 通过将水从反应材料聚合物熔体转移到反应器中的气态介质，获得DP大于40，更优选至少约70的聚合物产物。

公开(公告)号：US6111064A

公开(公告)日：2000-08-29

申请号：US325442

申请日：1999-06-03

申请人： Charles J. Maurer ,  Gordon Shaw ,  Vicky S. Smith ,  Steven J. Buelow ,  William Tumas ,  Veronica Contreras ,  Ronald J. Martinez

发明人： Charles J. Maurer ,  Gordon Shaw ,  Vicky S. Smith ,  Steven J. Buelow ,  William Tumas ,  Veronica Contreras ,  Ronald J. Martinez

IPC分类号： C08G63/78 ,  C08F6/00 ,  C08F2/00

CPC分类号： C08G63/78

摘要： A process is disclosed for the preparation of a polyester polymer or polyester copolymer under superatmospheric pressure conditions in a pipe or tubular reaction under turbannular flow conditions. Reaction material having a glycol equivalents to carboxylic acid equivalents mole ratio of from 1.0:1 to 1.2:1, together with a superatmospheric dense gaseous medium are fed co-currently to the reactor. Dicarboxylic acid and/or diol raw materials may be injected into any of the reaction zones in the process during operation to achieve the overall desired mole ratio balance. The process operates at temperatures of from about 220.degree. C. to about 320.degree. C., with turbannular flow achieved before the polymer product and gas exit the reactor process. The pressure in the reaction zones can be in the range from 15 psia to 2500 psia. A polymer product having a DP of a greater than 40, more preferably at least about 70, is achieved by the transfer of water from the reacting material polymer melt to the gaseous medium in the reactor.

公开(公告)号：US06310233B1

公开(公告)日：2001-10-30

申请号：US09185997

申请日：1998-11-04

申请人： Charles J. Maurer ,  Gordon Shaw ,  Vicky S. Smith

发明人： Charles J. Maurer ,  Gordon Shaw ,  Vicky S. Smith

IPC分类号： C07C6976

CPC分类号： C07C67/26 ,  C07C69/82

摘要： A pressure process for preparing a hydroxyalkyl ester monomer and oligomer that can be used to prepare a polyester such as polyethylene terephthalate (PET) is disclosed. The process includes the steps of reacting, by ethoxylation, dicarboxylic acid and alkylene oxide in the presence of a compressed gas medium to form a specified mixture of monohydroxyalkyl ester and bishydroxyalkyl ester. The reaction pressure is such that the density of the gas medium is greater than or equal to half the critical density of the compressed gas medium. The mole ratio of the alkylene oxide to the dicarboxylic acid is less than about 2:1, and preferably 1.1:1.2. The DP of all reaction products is less than 5. The reactant product may be polymerized into a polyester. The process may optionally employ catalysts such as amines or amino acids. The compressed gas medium can be a solvent and an optional cosolvent. The temperature of reaction is from about 100° C. to 240° C. at a pressure of 50-5000 psi.

摘要翻译： 公开了用于制备可用于制备聚对苯二甲酸乙二醇酯（PET）的聚酯的羟烷基酯单体和低聚物的压力方法。 该方法包括在压缩气体介质存在下通过乙氧基化二羧酸和环氧烷反应以形成特定的单羟基烷基酯和双羟烷基酯的混合物的步骤。 反应压力使得气体介质的密度大于或等于压缩气体介质的临界密度的一半。 环氧烷与二羧酸的摩尔比小于约2:1，优选为1.1:1.2。 所有反应产物的DP小于5.反应产物可聚合成聚酯。 该方法可以任选地使用催化剂，例如胺或氨基酸。 压缩气体介质可以是溶剂和任选的助溶剂。 在50-5000psi的压力下，反应温度为约100℃至240℃。