Novel Rigid Polyurethane Formulations Offering Combined High Energy Efficiency and Fast Productivity for Outstanding Performance in the Domestic Appliance Industry

摘要

Polyurethane systems employed in domestic appliance applications typically give the refrigeration industry either stronginsulation performance or greater productivity levels due to short demold-times.In recent years, the energy efficiency requirements have become increasingly stringent. This need for improved energyefficiency combined with the demand in the industry for high productivity has driven the DOW Chemical Company todevelop new foam systems offering outstanding performance using various blowing agents, with a strong focus towardshydrocarbons.In the paper the development of alternative technology options to improve the energy efficiency are described and thefoam-performance of the different routes is compared.The resulting newly developed series of polyurethane systems for domestic appliance allows the refrigeratormanufacturers to get both enhanced insulation performance and high productivity, addressing specific technical issues of therefrigeration industry in each region of the globe. These new solutions have been fully validated and commercialized atBosch und Siemens Hausger?te GmbH, allowing BSHG to process the best in class energy efficient foam usinghydrocarbons in a conventional single shot injection foaming process.