POLYETHERPOLYOL PRODUCTION METHOD

FIELD: polymer production. ^ SUBSTANCE: invention, in particular, relates to improved method for producing polyetherpolyols using double metal cyanide catalysts. Method is accomplished via polyaddition of alkylene oxides to initial compounds having molecular mass between 18 and 2000 and 1 to 8 hydro...

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Bibliographische Detailangaben
Hauptverfasser:	KHOFMANN JORG, KLINKZIK BERND, KLESCHEVSKI BERT, OBENDORF LARS, PAZOS KHOSE F, SHTAJNLJAJN KRISTIAN, EHLERS SHTEFAN
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	FIELD: polymer production. ^ SUBSTANCE: invention, in particular, relates to improved method for producing polyetherpolyols using double metal cyanide catalysts. Method is accomplished via polyaddition of alkylene oxides to initial compounds having molecular mass between 18 and 2000 and 1 to 8 hydroxyl groups containing active hydrogen atoms, reaction being effected in presence of double metal cyanide catalysts. During the polyaddition reaction, reaction mixture is at least once passed through jet disperser, in which power density is at least 105-106 J/m3 and residence time of reaction mixture per pass is at least 10-5 sec. ^ EFFECT: enhanced process efficiency and expanded synthetic possibilities. ^ 1 dwg, 3 ex