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INVISTA: Diol Products
INVISTA, formerly DuPont Textiles & Interiors (DTI) Specialty Intermediates, has introduced two unique 12-carbon diol products, C12 CD (a cyclic 12-carbon diol) and C12 LD (a linear 12-carbon diol). These high-quality products have applications in lubricants, polyurethanes, organic-based printing inks, coatings, adhesives, polymer chain extenders and fragrance chemicals. The addition of C12 CD (cyclododecanediol isomer mixture) to polyester polyol formulations can improve hydrolytic stability, reduce crystallinity and improve flexibility. These large, unique molecular structures provide differentiating properties for polyurethane applications due to their bulky size and secondary alcohol structure. C12 CD has applications as a building block in polyols and as a chain extender where it could provide unique advantages compared to HQEE, BDO and CHDM. C12 LD (1,12-dodecanediol) can impart increased flexibility and better hydrophobicity, leading to increased hydrolytic stability in polyurethanes. C12 LD can be used as a building block in polyols or as a chain extender. Application focus is in coatings, elastomers and adhesives.