CURABLE POLYURETHANE PREPOLYMER COMPOSITION
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United States of America Patent
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Issued Date -
Apr 13, 2023
app pub date -
Mar 5, 2021
filing date -
Mar 6, 2020
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Abstract
The present invention relates generally to a curable polyurethane prepolymer composition comprising polyurethane prepolymer obtained by the reaction of toluene diisocyanate (TDI) and at least one polyol and an ortho alkyl disubstituted dianiline, preferably 4,4′-methylene-bis-(3-chloro-2,6-diethylaniline) (MCDEA), wherein 50 to 100 wt % of the at least one polyol is at least one polycarbonate polyol.
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