By Dr. Cameron Chai
A new category of acrylated allophanate oligomers is the answer to meet the demand for superior-functionality, 100% solids, low-viscosity, and ultraviolet-cure coatings. The new class of oligomers allows ultraviolet coatings formulators to reduce the quantity of acrylated monomer, while optimizing the system performance.
Bayer MaterialScience’s UV-cure coatings expert, Mike Dvorchak will discuss the new category of oligomers at the Photopolymerization Fundamentals 2011. Dvorchak’s presentation titled ‘New 100% Solids Acrylated Allophanate Oligomers Offer Low Viscosity and High Functionality While Maximizing UV Coatings System Performance’ will come under the ‘Hybrid Organic-Inorganic Polymerizations and Novel Concepts in Photopolymerizations’ session.
During the presentation, Dvorchak will discuss the application of allophanate polyisocyanate chemistry in the manufacture of low-viscosity resins, ensuing higher solids formulation in ultraviolet-cure coatings. Low viscosity resins are eco-friendly coatings, as they could eliminate the inclusion of organic solvents or reactive diluents.
Dvorchak will also explain the optimization process of acrylated allophanate products, their outdoor stability and usage in direct-to-metal and plastic applications. Colorado Photopolymer Solutions and RadTech International have sponsored the Photopolymerization Fundamentals 2011.
Dvorchak commented that allophanate polyisocyanates feature numerous attractive properties and are suitable for today's coatings formulators. Their low viscosity quality offers more options during the development of high-solid systems. He also noticed that allophanate polyisocyanates’ outdoor stability equals that of isocyanurate-based ultraviolet oligomers. Allophanates are superior metal coatings as they have better adhesion properties.