公开(公告)号：EP1926766A1

公开(公告)日：2008-06-04

申请号：EP06815270.1

申请日：2006-09-22

申请人： E.I. du Pont de Nemours and Company

发明人： MARKS, David Neil ,  WAGGONER, Marion Glen ,  CITRON, Joel David

IPC分类号： C08G63/00

CPC分类号： C08G63/78 ,  C08G63/19 ,  C08G63/605 ,  C08G63/785

摘要： Aromatic polyesters are made in a continuous process in an extruder or extruder-like apparatus by reacting at elevated temperatures dicarboxylic acids, aliphatic esters of aromatic diols, and optionally aliphatic esters of aromatic hydroxyacids in an extruder while removing byproduct aliphatic carboxylic acid. The resulting aromatic polyesters, especially thermotropic liquid crystalline aromatic polyesters, are useful as molding resins for a variety of uses, for example electronic and electrical parts.

公开(公告)号：EP1926766B1

公开(公告)日：2011-09-21

申请号：EP06815270.1

申请日：2006-09-22

申请人： E.I. DU PONT DE NEMOURS AND COMPANY

发明人： MARKS, David Neil ,  WAGGONER, Marion Glen ,  CITRON, Joel David

IPC分类号： C08G63/00

CPC分类号： C08G63/78 ,  C08G63/19 ,  C08G63/605 ,  C08G63/785

摘要： Aromatic polyesters are made in a continuous process in an extruder or extruder-like apparatus by reacting at elevated temperatures dicarboxylic acids, aliphatic esters of aromatic diols, and optionally aliphatic esters of aromatic hydroxyacids in an extruder while removing byproduct aliphatic carboxylic acid. The resulting aromatic polyesters, especially thermotropic liquid crystalline aromatic polyesters, are useful as molding resins for a variety of uses, for example electronic and electrical parts.