Poly(trimethylene terephthalate)-PTT:from biotech&biomass-based PDO which is po-lymerised together with petrochemica-based PTA or DMT:production to be realised soon.
Poly(butylene terephthalate)-PBT:from biotech&biomass-based BDO which is polymerised together with petrochemical based PTA or DMT:is still theory, Chemo-PBT is biodegradable
Poly(butylene succinate)-PBS: from biotech&biomass-based BDO which is polymerised with biotech& biomass-based succinic acid:biotech route to succinic acid is in development phase.