Sealant compositions or coating mixtures containing functional silane or siloxane adhesion promotors nonreactive with blocked isocyanates
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United States of America Patent
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Jul 11, 1989
Grant Date -
N/A
app pub date -
May 23, 1988
filing date -
May 23, 1988
priority date (Note) -
Expired
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Abstract
A sealant or coating composition admixture contains a blocked isocyanate-terminated prepolymer in which generally all of the NCO groups are blocked, a curing agent such as a polyamine or a polyimine, and a functional silane or siloxane nonreactive with blocked isocyanates. The sealants or coating compositions when cured have improved properties such as adhesion.
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