PROCESS FOR THE PREPARATION OF A CONDENSATION PRODUCT

The invention relates to a process for the preparation of a condensation product preferably a polyester. The process is carried out under supercritical conditions in the presence of a supercritical solvent. The condensation by-products are selectively removed. The selective removal is effected by a...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	STEVELMANS, SANDRA, WOSGIEN, IRENE, WEULTJES, IWAN, JOHANNES, WILHELMUS, BAKKER, REMCO, ALEF, HOENEN, RONALD, JOZEF, HUBERTUS, DEKKERS, PETRUS, JOHANNES, STANKIEWICZ, ANDRZEJ, IGNACY, PRONK, WOUTER
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE THEIR RELEVANT APPARATUS TRANSPORTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention relates to a process for the preparation of a condensation product preferably a polyester. The process is carried out under supercritical conditions in the presence of a supercritical solvent. The condensation by-products are selectively removed. The selective removal is effected by a membrane separation process for example a pervaporation or a vapour permeation process. The solvent may be a ketone. The invention also relates to a coating composition containing a condensation product obtained with said process. Cette invention a trait à un procédé de préparation d'un condensat, un polyester de préférence. Le processus se déroule dans des conditions supercritiques en présence d'un solvant supercritique. Les sous-produits de condensation sont extraits de manière sélective. On effectue cette extraction sélective grâce à une technique de séparation membranaire, notamment une pervaporation ou une perméation en phase vapeur. Le solvant peut être une cétone. L'invention concerne également une composition d'enduction contenant un condensat obtenu par la mise en oeuvre de ce procédé.