EP 1530561 A1 20050518 - METHOD FOR PRODUCING PHTHALIC ACID DICHLORIDE
Title (en)
METHOD FOR PRODUCING PHTHALIC ACID DICHLORIDE
Title (de)
VERFAHREN ZUM HERSTELLEN VON PHTHALSÄUREDICHLORID
Title (fr)
PROCEDE DE FABRICATION DE DICHLORURE D'ACIDE PHTALIQUE
Publication
Application
Priority
- DE 10237579 A 20020816
- EP 0308684 W 20030806
Abstract (en)
[origin: DE10237579A1] A method for the production of phthalic acid dichloride (I) by reacting phthalic anhydride with phosgene in an inert diluent at 20-150C in presence of a N,N-dialkylformamide (II) involves adding the required amounts of phosgene and (II) continuously or semi-continuously and independently of one another.
IPC 1-7
IPC 8 full level
C07C 51/60 (2006.01)
CPC (source: EP US)
C07C 51/60 (2013.01 - EP US)
C-Set (source: EP US)
Citation (search report)
See references of WO 2004022520A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 10237579 A1 20040226; AU 2003250214 A1 20040329; EP 1530561 A1 20050518; US 2006122426 A1 20060608; WO 2004022520 A1 20040318
DOCDB simple family (application)
DE 10237579 A 20020816; AU 2003250214 A 20030806; EP 0308684 W 20030806; EP 03793692 A 20030806; US 52474805 A 20050818