G. N. Robinson, J. Alderman, T. Johnson
1993
Citations
0
Influential Citations
5
Citations
Journal
Journal of Coatings Technology
Abstract
A research program was initiated to determine whether an oxazolidine moisture scavenger could overcome the inherent disadvantages of physical and chemical moisture scavengers commonly employed in polyurethane coating systems. Oxazolidines were selected for this study because of their potential reactivity with water and generally good toxicity characteristics. Commercially available oxazolidines are unacceptable due to their high molecular weight and slow reactivity. A wide range of oxazolidine molecules were investigated. Oxazolidines from amino alcohol/ketone reactions demonstrated excellent hydrolysis characteristics. Ketone-based oxazolidines were then shown to effectively reduce moisture in single-package, moisture cured, pigmented polyurethane coatings.