POLYURETHANE ENCAPSULATE

Embodiments relate to a polyurethane coating film that has improved water barrier properties combined with mechanical strength. According to embodiments, a polyurethane encapsulate includes a polyurethane film that is a reaction product of an aromatic isocyanate and a polyol, and the polyol includes...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WATKINS, AVERY L, MEDINA, JUAN CARLOS, LATHAM, DWIGHT
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:Embodiments relate to a polyurethane coating film that has improved water barrier properties combined with mechanical strength. According to embodiments, a polyurethane encapsulate includes a polyurethane film that is a reaction product of an aromatic isocyanate and a polyol, and the polyol includes a butylene oxide based polyether polyol in an amount of at least 35 wt % based on a total weight of the polyol. The polyurethane encapsulate further includes a particulate material that is enclosed by the polyurethane film.