Process for producing aqueous polyurethane formulations

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United States of America Patent

PATENT NO 9624401
APP PUB NO 20150368511A1
SERIAL NO

14767121

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Abstract

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A process for producing aqueous polyurethane preparations comprises the steps of:

    A) providing a solution in at least one solvent of at least one polymeric polyurethane bearing ionizable groups,B) using at least one neutralizing agent to partially neutralize the at least one polymeric polyurethane bearing ionizable groups,C) dispersing the at least one polymeric polyurethane bearing ionizable groups in water,D) optionally removing the at least one solvent,E) optionally diluting the mixture after solvent removal with further water,F) admixing neutralizing agent after solvent removal.

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Patent Owner(s)

Patent OwnerAddress
BASF SELUDWIGSHAFEN GERMANY LUDWIGSHAFEN RHINELAND-PALATINATE

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Adams, Stefan Ludwigshafen, DE 21 117
Bach, Volker Basel, CH 41 292
Haeberle, Karl Speyer, DE 48 477
Treiber, Reinhard Leimen, DE 9 71

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