Dow Chemical Co. plans to introduce an anti-scratch additive for compounding with polycarbonate to compete with ultraviolet-light-cured polycarbonate hard coatings. While polycarbonate is temperature resistant, tough and clear, it has poor scratch resistance and needs a hard coating—usually an acrylic monomer—to maintain its glossy appearance, the company says. The new additive is designed to eliminate the hard coating and decrease the costs associated with obtaining a hardened polycarbonate.
Potential applications for additive-enhanced polycarbonate include electronic-device housings and touch screens, automotive components such as knobs and dashboards, and eyeglass optics. The additive is expected to be available in the second half of 2012.blog comments powered by Disqus