C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
400/7430
C09D 175/04 (2006.01) C08G 18/08 (2006.01) C08G 18/10 (2006.01) C08K 5/37 (2006.01)
Patent
CA 1324857
STABILIZED MOISTURE CURABLE POLYURETHANE COATINGS ABSTRACT OF THE DISCLOSURE Disclosed is a method for improving the pot life of moisture curable polyurethane coating compositions. Such enhancement is accomplished by blending with said coating composition a stabilizing amount of a stabilizing agent from the group of a mercapto compound, a polyphenol characterized by being reactable with an isocyanate group in the presence of a tertiary amine catalyst, and mixtures thereof. Stabilizing amounts of the stabilizing agent typically range from about 1% to 10% by weight. The enhanced pot life is realized even in the presence of significant quantities of water. -12-
555268
Blakley Brent A.
Carlson Gary M.
Schoener Thomas E.
Gowling Lafleur Henderson Llp
The Sherwin-Williams Company
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