Patent No. U.S. 6,218,500 B1
Tennant Co., Minneapolis, MN, has been awarded a U.S. patent covering a urethane resin composition. The composition is comprised of greater than 55% by weight of primary amine-terminated urethane oligomers free of—NCON—R1—NOCN—linkages between isocyanate groups, where R1 is a hydrocarbon moiety and free of crosslinking between a terminal amine and an isocyanate linkage. The composition is substantially free of ketones and is comprised of less than 10% by mole equivalent or carboxylate groups of volatile organic acids relative to amine groups of said primary amine terminated urethane oligomer.
Urethane Resin Composition
Published August 9, 2005
Related Breaking News
Related Paint & Coatings Manufacturer News