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公开(公告)号：US20220064358A1
公开(公告)日：2022-03-03
申请号：US17010036
申请日：2020-09-02
发明人： Ibrahim SENDIJAREVIC
摘要： A method of producing a closed-cell and rigid foam. The method comprises reacting an isocyanate composition including one or more polyisocyanates and a polyol composition including one or more polyols including one or more aromatic polyester polyols having a hydroxyl functionality of greater than 2 and one or more physical and/or chemical blowing agents including methylal to form a closed-cell and rigid foam configured to retain at least 85% of an initial volume of the closed-cell and rigid foam when exposed to about 97% relative humidity at about 70° C. for at least seven or more days.
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公开(公告)号：US11655328B2
公开(公告)日：2023-05-23
申请号：US17010036
申请日：2020-09-02
发明人： Ibrahim Sendijarevic
CPC分类号： C08G18/3215 , C08G18/14 , C08J9/142 , C08G2110/0025 , C08J2203/12 , C08J2205/052 , C08J2205/10
摘要： A method of producing a closed-cell and rigid foam. The method comprises reacting an isocyanate composition including one or more polyisocyanates and a polyol composition including one or more polyols including one or more aromatic polyester polyols having a hydroxyl functionality of greater than 2 and one or more physical and/or chemical blowing agents including methylal to form a closed-cell and rigid foam configured to retain at least 85% of an initial volume of the closed-cell and rigid foam when exposed to about 97% relative humidity at about 70° C. for at least seven or more days.
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