公开(公告)号：US3787359A

公开(公告)日：1974-01-22

申请号：US3787359D

申请日：1972-01-11

Applicant: BASF AG

Inventor： HORN P ,  JOSCHEK H ,  SCHUSTER L ,  FALKENSTEIN G

IPC: C08G64/20 ,  C08G64/24 ,  C08G17/13

CPC classification number: C08G64/24 ,  C08G64/205

Abstract: CONTINUOUS MANUFACTURE OF HIGH MOLECULAR WEIGHT LINEAR POLYCARBONATES OF HIGH PURITY FROM ORGANIC DIHYDROXY COMPOUNDS AND PHOSGENE IN ONE OR MORE PACKED REACTORS, WHEREIN THE REACTION IS CARRIED OUT UNDER "TRANSITION FLOW" CONDITIONS, CONVENIENTLY WITH RECYCLING OF THE REACTION MIXTURE.