PROCESS FOR TROUBLEFREE COATING OF HYDROPHOBIC MATERIALS WITH POLYURETHANES

The present invention relates to a process for troublefree, i.e. Flaw-free and uniform, coating of a support which can accept a large amount of electrostatic charge, such as, for example, polycarbonate foils, with a solution of fully reacted polyurethane in organic solvents, more precisely after pri...

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Bibliographic Details
Main Authors KARL SCHRANZ, ALEXANDER RIEBEL, WALTHER COHNEN
Format Patent
LanguageEnglish
Published 30.08.1990
Edition5
Subjects
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
CHEMISTRY
COMPOSITIONS BASED THEREON
GENERAL PROCESSES OF COMPOUNDING
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL
SPRAYING OR ATOMISING IN GENERAL
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
WORKING-UP
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Summary:The present invention relates to a process for troublefree, i.e. Flaw-free and uniform, coating of a support which can accept a large amount of electrostatic charge, such as, for example, polycarbonate foils, with a solution of fully reacted polyurethane in organic solvents, more precisely after prior coating of the polycarbonate foil with an organic solution of the sodium salt of polystyrenesulphonic acid.
Bibliography:Application Number: AU19890035136