FOERFARANDE FOER FRAMSTAELLNING AV ETT OMDISPERGERBART PLASTMJOEL

Redispersible powders are obtained from an aqueous dispersion of a polymer built up from 20-60% of acrylic or methacrylic acid and 40-80% of alkyl esters of acrylic or methacrylic acid and having a minimum film-forming temperature (MFT) of below 60 degrees C and a dynamic freezing point (T lambda ma...

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Bibliographische Detailangaben
Hauptverfasser:	KLESSE, WOLFGANG, LEHMANN, KLAUS, MAGER, THEODOR, RAUCH, HUBERT
Format:	Patent
Sprache:	fin
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CASTING CHEMISTRY COMPOSITIONS BASED THEREON FOUNDRY MOULDING GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS POWDER METALLURGY THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING-UP
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Beschreibung
Zusammenfassung:	Redispersible powders are obtained from an aqueous dispersion of a polymer built up from 20-60% of acrylic or methacrylic acid and 40-80% of alkyl esters of acrylic or methacrylic acid and having a minimum film-forming temperature (MFT) of below 60 degrees C and a dynamic freezing point (T lambda max) of the polymer of below 150 degrees C by spray drying at an inlet temperature Ti and an outlet temperature To where MFT < Ti < T lambda max and MFT < To < 65 degrees C.