Diofan® PVDC coatings are widely used in pharmaceutical blister packaging to protect sensitive solid-dose drug preparations as well as in the packaging of delicate food and similar other consumer goods. They can be applied on both plastic and paper-based substrates and are often preferred for their unique combination of water vapor and oxygen barrier.
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Diofan® Ultra736 PVDC coating was custom-engineered to maximize the water vapor barrier without sacrificing its high oxygen barrier, chemical resistance or transparency. The product also exhibits excellent thermoformability, enabling smaller pack sizes with higher pill density if compared with incumbent alternative coating solutions.
Thanks to its ultra-high barrier performance, Diofan® Ultra736 allows the reduction of the coating thickness compared to incumbent mid to high barrier PVDC coatings, without impacting the functionality. In particular, it has been shown that, for Duplex barrier structures, Diofan® Ultra736 enables halving the number of base coat layers while delivering the same water vapor barrier. This approach can contribute to decreasing the overall carbon footprint of final blister film structures by up to 13%.
Diofan® is a registered trademark of Solvay.
With regulatory compliance for pharmaceutical-contact applications, Diofan® Ultra736 PVDC is globally available for sampling. (Photo: Solvay, PR090)
Solvay has launched Diofan® Ultra736, a new PVDC coating solution that offers a superior combination of ultra-high water vapor barrier properties at reduced coating thickness for more sustainable pharmaceutical blister films. (Photo: Solvay, PR090)
PVC emulsions (polyvinyl chloride)are purpose-built for applications that need to be flame retardant and chemical, scuff and mar resistance, such as in paper, textile, composites and building materials. PVDC emulsions (polyvinylidene chloride) are used for their ability to provide a barrier to oxygen and moisture, making them well-suited for use in anti-corrosion coatings for metal.
Lubrizol has developed an extensive range of PVC emulsions that are designed for coating a wide variety of substrates and for impregnation and saturation of fibrous materials like paper, nonwovens and textiles. Our polyvinyl chloride emulsions enable coating formulations with diverse levels of hardness and can be fine-tuned to the stiffness/flexibility requirements of a wide range of surfaces&#;while offering a variety of physical properties for specialty applications, such as tg, stiffness and chloride content, as well as adhesion, abrasion resistance, heat sealability and flame retardant properties.
Lubrizol PVDC emulsions deliver excellent moisture barrier properties, plus emulsion stability and long product shelf life. They are well suited for use in 1K water-based primers for metal corrosion protection, with protection that rivals that delivered by 2K systems. Permax&#; vinylidene chloride resins from Lubrizol provide outstanding corrosion resistance, coupled with the adhesion flexibility and durability necessary for metal coatings in industrial environments. They are fast-drying PVDC emulsions that enable greater process efficiencies, such as faster line speeds.
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We also work directly with customers to enhance our PVC and PVDC chemistries as needed to meet their unique challenges.
Typical Applications
Lubrizol PVC emulsions and PVDC emulsions are used in a variety of applications, including:
Paper and nonwovens&#;to impart flame retardance, durability, hardness, abrasion resistance, and heat seal in engineered paper.
Building & constructions&#;to provide moisture barrier properties.
Protective coatings, transportation coatings and industrial OEM&#;to enhance corrosion protection.
Get help with product recommendations, formulation questions, application issues, and more from a Lubrizol expert on PVC/PVDC Emulsions technologies.
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