MPDiol Glycol 2-Methyl-1,3-Propanediol 2163-42-0 Lyondell North America South and Central America Central and Eastern Europe Middle East and Central Asia Asia / Pacific Glycol Monomers Coatings Soluble in water MPDiol glycol (2-Methyl-1,3-Propanediol) is a clear, colorless, low viscosity liquid diol available from Lyondell Chemical Company. This new, commercially available diol is produced via a proprietary hydroformylation of allyl alcohol—a propylene oxide derivative—at Lyondell’s facility in Channelview, Texas. Because of its unique molecular structure, MPDiol glycol provides the user an exceptional set of properties. MPDiol glycol is a branched, aliphatic diol with two primay hydroxyls. Therefore, MPDiol glycol benefits from both molecular characteristics as an intermediate. The particular areas of use and the specific industries which can benefit from using MPDiol glycol are numerous. The unique molecular structure of MPDiol glycol brings significant process and property advantages to unsaturated polyester resins. The all-primary hydroxyl, high boiling point character of MPDiol glycol increases esterification rates and kettle productivity. Light color resins with excellent styrene miscibility are obtained. MPDiol glycol provides an excellent balance of tensile strength, elongation and flexibility to the final product. Molding resins can achieve higher elongations and toughness without sacrificing modulus. And, unlike other flexibilizing diols, methyl propanediol will not lead to a loss in chemical resistance, water resistance or weatherability. The exacting requirements of gel coat systems will benefit from the inherent characteristics of MPDiol glycol. Gel coats formulated with MPDiol glycol have higher strength and elongation, excellent blister resistance and good weatherability. MPDiol glycol provides a unique balance of performance characteristics to the manufacturer and supplier of high performance saturated polyester resins for coating applications. The ease of handling liquid MPDiol glycol, combined with rapid polyesterifications and low color products, provide greater plant productivity with better product quality. The unique non-crystallizing nature of MPDiol glycol-based polyesters provides the resin manufacturer the ability to design the resin to fit the customer’s specific needs. Very hard, but flexible, coatings with excellent stain resistance and good chemical resistance can be designed with MPDiol glycol. The unique non-crystallizing nature of MPDiol glycol-based diesters and polyester plasticizers can provide significant handling benefits to the thermoplastics (PVC) compounder. In addition, the very low glass transition temperature of the MPDiol glycol based derivatives ensures efficient utilization of such premium plasticizers. 2-Methyl-1,3-Propanediol. Used for coatings. Provides very good balance of tensile strength, elongation and flexibility. Exhibits very good blister resistance and good weatherability.