Add time:08/22/2019 Source:sciencedirect.com
Non-toxic coating formulations, i.e. without isocyanate, formaldehyde and toxic amines are a topic in the coating industries since decades. The replacement of cross-linking agents or functional groups to non-toxic compounds reduced often the mechanical properties of the coating film or just one toxic compounds are replaced by another toxic one. In the presenting work a biocatalytic route to functionalized POLYESTER (cas 113669-97-9) is presented forming reactive cyclic carbonates on the resin. The resin could be cross-linked by catalytic amount of amine to form a polyester-network with promising mechanical properties in comparison to polyester-melamine networks.
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