Polyurethane-based uv absorber

A polyurethane-based UV absorber, obtained by reacting a UV absorber having a reactive hydrogen with a polyisocyanate and a diol or polyol; wherein the weight average molecular weight of the polyurethane-based UV absorber is in a range of 10,000 to 200,000.

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Bibliographische Detailangaben
Hauptverfasser: KO, TZU-HENG, LAI, PAO-KUN, PAN, YUAN-PIN, YANG, HUEI-JEN, CHOU, DER-GUN, LU, MEI-TING
Format: Patent
Sprache:chi ; eng
Schlagworte:
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Beschreibung
Zusammenfassung:A polyurethane-based UV absorber, obtained by reacting a UV absorber having a reactive hydrogen with a polyisocyanate and a diol or polyol; wherein the weight average molecular weight of the polyurethane-based UV absorber is in a range of 10,000 to 200,000.