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Polyurethane coating

Patent image
NRL

A polyurethane coating made by: applying to a surface a polyol composition and an isocyanate composition, such that a mixture of the polyol composition and the isocyanate composition is formed during the application; and allowing the mixture to cure to the polyurethane coating. The polyol composition has a polyol monomer having the chemical formula: R1 is a divalent radical selected from aliphatic, aromatic, and ether-containing group. R2 is a monovalent radical selected from aliphatic, aromatic, ester-containing group, ether-containing group, and acrylic-containing group. R2 is free of —O—CH2—CH(OH)— groups, and the polyol monomer is free of epoxy groups and amino hydrogens. The isocyanate composition comprises an isocyanate compound having at least two isocyanate groups. The polyol composition or the isocyanate composition comprises a water scavenger. The polyol composition or the isocyanate composition comprises a polyurethane catalyst.

Inventors: 
Verborgt, Jozef; Webb, Arthur A.
Patent Number: 
Technical domain: 
Materials and Coatings
FIle Date: 
2007-07-26
Grant Date: 
2009-11-24
Grant time: 
852 days
Grant time percentile rank: 
15
Claim count percentile rank: 
6
Citations percentile rank: 
2
'Cited by' percentile rank: 
1
Assignee: 
US NAVY