There's lots of work out there on bio-based polyesters that can be made into coatings (some of the work I've seen personally) but they have a solvent-based process to generate the emulsion from the solid resin, which defeats some of the environmental advantage (if there was one to begin with -- which is also debatable).
There's lots of work out there on bio-based polyesters that can be made into coatings (some of the work I've seen personally) but they have a solvent-based process to generate the emulsion from the solid resin, which defeats some of the environmental advantage (if there was one to begin with -- which is also debatable).
Are you talking about the PLA/PCL/PHA space?
Not really, more like conventional diol-diacid polyesters from dimer acids, forestry waste derived monomers, etc.