Improved process for the production of poly (ether ketone) - PEK- and its monomer

Improved process for the production of poly (ether ketone) - PEK- and its monomer

4-Chloro-4'-hydroxybenzophenone - preferably prepared by reaction of 4-chlorobenzoyl chloride and phenol using AlCl 3 catalyst in orthodichlorobenzene solvent - is purified by distillation under vacuum, more conveniently in combination with a solvent such as diphenyl sulfone, to give a high pur...

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Bibliographische Detailangaben
Hauptverfasser: MATHEW, ABRAHAM, MALTE, ASHOKKUMAR MAGANLAL, MATHUR, SUCHET SARAN, GHARDA, KEKI HORSMUSJI, JOSEPH, PULINATTU CHERIAN
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC CHEMISTRY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:4-Chloro-4'-hydroxybenzophenone - preferably prepared by reaction of 4-chlorobenzoyl chloride and phenol using AlCl 3 catalyst in orthodichlorobenzene solvent - is purified by distillation under vacuum, more conveniently in combination with a solvent such as diphenyl sulfone, to give a high purity monomer which can be polymerized, using, e.g.,K 2 CO 3 at 330°C, to yield poly(ether ketone) - PEK - with excellent properties.