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公开(公告)号：US20210380750A1
公开(公告)日：2021-12-09
申请号：US17297276
申请日：2019-11-27
Applicant: BASF SE
Inventor： Stephan SALZINGER , Robert REICHARDT
Abstract: The presently claimed invention provides a continuous process for preparing a polyurethane composition which behaves as a rheology modifier upon addition to paint and coating formulations. The present process employs mixers for homogenization of highly viscous polyurethane polymers and by adjusting the process parameters and reactor conditions in specified ranges obtained a polyurethane composition. The polyurethane composition obtained from the process of the present invention is used as thickener in water-borne paint and coating formulations.
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