Polyurethane formulation for coating substrates
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United States of America Patent
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app pub date -
Feb 9, 2001
filing date -
Jul 17, 1998
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Abandoned
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Abstract
This invention relates to aqueous polyurethane formulations comprising (a) at least one dispersed polyurethane not having groups that can react with NCO groups to form additional urethane or urea functionalities, and (b) at least one NCO prepolymer based on a polyester polyol and/or a polyether polyol, that are particularly suitable for producing thick coatings on substrates such as split leather or textiles.
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