We have studied different ways of preparing UV resistant oligomers with terminated cyclocarbonates, epoxy and amino groups. We have studied possibility of preparing HNIPU UV stable coatings. Linear and branched amino containing oligomers based on di‐ and tricyclocarbonates and primary diamines were investigated. It was found that oligomers should be used for curing epoxy‐saturated resins, but since the residual quantity of amines this system can't be used for UV resistant coatings. The same problem was in system on the base of nonisocyanate epoxy‐urethane oligomers cured by tertiary amines. Coating on the base of acrylic cyclocarbonates and oligomers with primary amines are similar to conventional polyurethane coatings on the base of acrylic hydroxyl containing oligomers and isocyanates, but mechanical properties and chemical resistance are better.

The article reviews production and application of the nonisocyanate polyurethanes based on cyclic carbonate oligomers. Nonisocyanate polyurethane (NIPU) networks are obtained by the reaction between the polycyclic carbonate oligomers and aliphatic or cycloaliphatic polyamines with primary amino groups. The result is a crosslinked polymer with β-hydroxyurethane groups of different structure defined as a polyhydroxyurethane polymer. The article discusses NIPU and hybrid NIPU (HNIPU), which also contains epoxy and acrylic compounds. Significant attention was paid to the formation of the materials based on renewable raw materials. The authors provide an overview of the recent publications in this field with a more detailed description of the Polymate Ltd. achievements.

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