Use of polymerizable ultraviolet absorber in polyurethane and composition for preparing polyurethane comprising the same
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United States of America Patent
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Jan 17, 2019
app pub date -
Jun 11, 2018
filing date -
Jun 11, 2018
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Abstract
A use of a polymerizable ultraviolet absorber is disclosed, which is applied to a polyurethane preparation. The polymerizable ultraviolet absorber is obtained by reacting an UV absorber having a reactive hydrogen group with a polyisocyanate having three —NCO groups. In addition, a composition for forming polyurethane comprising the aforementioned polymerizable ultraviolet absorber is also disclosed.
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