During the tradeshow "World Appliance Expo" in Shanghai on March 16, 2011, Dow Polyurethanes, along with Haier, the world's foremost manufacturer of refrigerators and freezers, presented a Dow patented breakthrough rigid polyurethane insulation technology. Pascal technology is an advanced combination of excellent polyurethane insulation and efficient appliance case filling that addresses the productivity needs of manufacturers and the energy efficiency demands of consumers. This technology increases energy efficiency in refrigerators and freezers and supports appliance companies to meet the energy efficiency standards of governments around the world for the next 25 years.