Rigid polyurethane foams are made using a polyol component that includes toluene diamine-initiated polyols containing specified levels of oxyethylene groups. Foams made from these polyols have low k-factors and excellent demold expansion values.
US Patent 07691913 Rigid polyurethane foam based on toluene diamine-initiated polyolsUS Patent 7691913 Rigid polyurethane foam based on toluene diamine-initiated polyols
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Patent Number
076919130
Patent Number
76919130
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