METAL COMPOSITE MATERIALS AND USE OF A PUR OR PIR FOAM OBTAINABLE FROM POLYESTERPOLYOLS WHICH ARE OBTAINABLE BY A METHOD FOR PRODUCING POLYESTER POLYOLS HAVING LOW VOLUME OF DIOXANE WASTE FOR MANUFACTURING METAL COMPOSITE MATERIALS

摘要

The invention relates to the production and use of polyester polyols, formed from at least one carboxylic acid anhydride and ethylene glycol, wherein a specialized reaction control substantially suppresses the formation of 1,4-dioxane from diethylene glycol.