Process and apparatus for continuous production of aqueous polyurethane dispersions

The application relates to a process for continuously producing aqueous polyurethane dispersions, which is characterized by the use of microstructured mixing elements and addition of water twice during the dispersion step. The energy input in the mixing of the dispersion is low. In addition, the app...

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Main Authors WITKOWSKI, REINER, PROSS, ALEXANDER, SCHUBERT, STEPHAN, RITTER, JOACHIM, GRABLOWITZ, HANS GEORG, HAHN, CHRISTIAN JOACHIM, BREUER, HOLGER, GESTERMANN, SVEN
Format Patent
LanguageChinese
English
Published 16.05.2017
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
MAKING GRANULES OR PREFORMS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED
RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Summary:The application relates to a process for continuously producing aqueous polyurethane dispersions, which is characterized by the use of microstructured mixing elements and addition of water twice during the dispersion step. The energy input in the mixing of the dispersion is low. In addition, the application describes an apparatus suitable for execution of the aforementioned process.
Bibliography:Application Number: TW20165121550