Most pessimistic estimates suggest that by 2050, 20% of the total fossil oil consumed every year could be used to produce plastics. (4,5) However, polymeric materials are almost exclusively produced from nonrenewable resources, which is problematic. (1−3) They have been key drivers to improve food conservation, to address healthcare needs, and to fuel the implementation of electric vehicles. Plastics are currently the material of choice for a variety of applications because of their easy processability, durability, and performances. Finally, a case study of the issues associated with the scale-up process of novel biobased polyols will be discussed in detail. Subsequently, the gaps that are currently preventing the transition from academic laboratories to industrial plants will be commented upon, highlighting in particular the use of nonscalable chemical transformations and the lack of competitive biobased raw material suppliers. Different natural resources, including lignocellulose, lipids, or carbohydrates for the synthesis of biobased polyester- or polyether-based polyols and polyphenols will be reviewed. This Perspective aims to summarize current strategies to produce polyols from biomass and the problems associated with their market implementation. For this reason, the demand of biobased polyols has grown rapidly and offers new opportunities to valorize biomass into technical grade polyols for the polyurethane industry. In the interest of improving the sustainability of the polyurethane industry, for more than a decade the market has undergone a shift toward biobased polyols made from renewable resources. Polyols are most commonly employed as the main component in the synthesis of polyurethanes, which is the sixth most important polymer family produced with a global production that reached around 22 Mt in 2019. The global market for polyols was US$26.2 billion in 2019 and is expected to grow up to US$34.4 billion by 2024.

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