Polyurethane sealant system
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United States of America Patent
Stats
-
Aug 18, 1981
Grant Date -
N/A
app pub date -
May 14, 1980
filing date -
May 14, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A polyurethane sealant including a polyurethane having terminal isocyanate groups and containing a dual curing catalysti of organic bismuth and organic tin, said polyurethane being the reaction product of a liquid poly (lower) alkylene polyol having a molecular weight of 6,000 or more and three to five hydroxyl groups and a sterically unhindered aromatic diisocyanate. The polyurethane sealant may be used in conjunction with a silane based primer and when applied to glass surfaces provides a high strength and rapidly curing seal.
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Cited Art Landscape
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