Glycidyl carbamate (GC) functional polymers combine the benefits of a polyurethane, but the curing mechanism of epoxy resins. Synthesized from polyisocyanates and glycidol, glycidyl carbamate functional resins contain no residual isocyanates. GC resins can self-crosslink at elevated temperatures and can also be cured using polyfunctional amines. GC resins can be made in different architectures to yield different viscosities and coatings properties. By modifying the resin with hydrophilic groups, water dispersible coatings systems can be prepared that require no surfactant or organic solvent. Hybrid sol-gel systems have been explored and linear GC resins leading to highly flexible, but hard and solvent resistant, coatings have been made. Coatings made from GC resins are hard and tough and since they combine the properties of polyurethanes and epoxy resins, can potentially be used in single-coat applications, replacing the need for separate primer and topcoats.<br/>

Glycidyl carbamate functional polymers: A non-isocyanate polyurethane

2019 Spring National Meeting

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