Saturated polyester- and alkyd resins have been used for many years to produce high-performance materials, such as industrial- and architectural coatings (solvent-Si waterborne). Over time, priorities have changed towards the preferred use of reduced Volatile Organic Compounds (VOC) products. The current industry challenge is to reduce the carbon footprint of coating systems. Possibilities for the reduction in carbon footprint can be provided by using materials from renewable resources. These raw materials should not only contribute to a reduction of carbon footprint over the life cycle of the coating, but should also be cost-efficient and provide equal, or better, coating performance than their petrochemical alternatives. Corbion Purac has developed a new biobased building block that offers opportunities to reduce carbon footprint, Lactide. This sustainable product can be used as a chemical building block to create saturated polyester- and alkyd resins for different kind of coating applications, such as decorative paints, and can-, wood- and powder coatings.
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