#Unsaturatedpolyesterresins (#UPRs) are a versatile class of thermosetting polymers widely used in various industries for their excellent combination of properties and ease of processing. They are formed by the polycondensation reaction of unsaturated dicarboxylic acids or anhydrides with diols, usually in the presence of a vinyl monomer such as styrene. The global Unsaturated #polyesterResin (UPRs) market size was estimated to be USD 9.6 billion in 2021 and is projected to reach USD 12.9 billion by 2026, at a CAGR of 6.1% between 2021 and 2026. https://www.marketsandmarkets.com/Market-Reports/unsaturated-polyester-resin-upr-market-891.html