公开(公告)号：DE2624509A1

公开(公告)日：1977-12-22

申请号：DE2624509

申请日：1976-06-01

Applicant: BASF AG

Inventor： PALMA FELLENBERG ALFREDO DIPL ,  DEMMLER KURT DIPL CHEM DR ,  FISCHER HERMANN DIPL CHEM DR ,  KOCHENDOERFER ERNST DIPL CHEM

IPC: C08G63/52 ,  C08G63/54 ,  C08G63/553 ,  C08G63/682

公开(公告)号：DE2714898A1

公开(公告)日：1978-10-05

申请号：DE2714898

申请日：1977-04-02

Applicant: BASF AG

Inventor： FISCHER HERMANN DIPL CHEM DR ,  THOMA RICHARD DIPL ING DR ,  KAEPPEL HANSHELMUT ING GRAD ,  KOCHENDOERFER ERNST DIPL CHEM ,  LAGALY WERNER

IPC: C08G63/00 ,  C08G63/52

Abstract: An economical and environmentally advantageous process for the continuous manufacture of unsaturated polyesters, wherein the vapors formed during the polycondensation are purified, in a two-part distillation column, to a degree where the residual content of organic starting materials is less than 1.5 percent by weight, based on the total weight of the effluent, and the unconverted starting materials are recycled to the process.