Sealant composition comprising moisture curable isocyanurate containing compound
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United States of America Patent
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Apr 27, 1993
Grant Date -
N/A
app pub date -
Jun 13, 1991
filing date -
Jun 15, 1990
priority date (Note) -
Expired
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Abstract
At least some of the isocyanate groups in the cured polyurethane sealant of this invention have the isocyanurate structure. A moisture-curing sealant composition of the invention comprises an active isocyanato-terminated isocyanate prepolymer containing a polyol component with a molecular weight of 2,000 to 20,000 and an isocyanurating agent. The sealant composition of the present invention is particularly excellent in initial bond strength due to sharp viscosity buildup.
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