EP 0644876 A1 19950329 - ULTRA WHITE N,N'-ETHYLENE-BIS(TETRABROMOPHTHALIMIDE) AND ITS PRODUCTION IN AQUEOUS ACETIC ACID.
Title (en)
ULTRA WHITE N,N'-ETHYLENE-BIS(TETRABROMOPHTHALIMIDE) AND ITS PRODUCTION IN AQUEOUS ACETIC ACID.
Title (de)
SEHR WEISSES N,N'-ETHYLEN-BIS(TETRABROMOPHTHALIMIDE) UND DEREN HERSTELLUNG IN WASSERIGEN ESSIGSÄURE.
Title (fr)
N,N'-ETHYLENE-BIS(TETRABROMOPHTALIMIDE) ULTRA BLANC ET PRODUCTION DE CELUI-CI DANS L'ACIDE ACETIQUE.
Publication
Application
Priority
- EP 9301403 W 19930601
- GB 9212243 A 19920608
- US 95428092 A 19920930
- US 58862496 A 19960119
Abstract (en)
[origin: WO9325526A1] A process for preparing a highly white N,N'-ethylene-bis(tetrabromophthalimide) product, comprising: reacting ethylene diamine and tetrabromophthalic anhydride in aqueous acetic acid to produce N,N'-ethylene-bis(tetrabromophthalimide); recovering the N,N'-ethylene-bis(tetrabromophthalimide) in a white precipitate; and drying the precipitate, so as to form an N,N'-ethylene-bis(tetrabromophthalimide) product. Also disclosed is a flame retardant composition predominantly comprised of N,N'-ethylene-bis(tetrabromophthalimide) and having unprecedented color and high purity.
IPC 1-7
IPC 8 full level
C07D 209/48 (2006.01); C08K 5/00 (2006.01); C08K 5/3417 (2006.01)
CPC (source: EP)
C07D 209/48 (2013.01); C08K 5/0066 (2013.01); C08K 5/3417 (2013.01)
Citation (search report)
See references of WO 9325526A1
Designated contracting state (EPC)
BE DE FR GB NL SE
DOCDB simple family (publication)
WO 9325526 A1 19931223; AU 4322393 A 19940104; EP 0644876 A1 19950329
DOCDB simple family (application)
EP 9301403 W 19930601; AU 4322393 A 19930601; EP 93912875 A 19930601