METHOD FOR THE TREATMENT OF POLYURETHANE FOAM WITH MICROWAVE RADIATION
    2.
    发明申请
    METHOD FOR THE TREATMENT OF POLYURETHANE FOAM WITH MICROWAVE RADIATION 审中-公开
    用微波辐射处理聚氨酯泡沫的方法

    公开(公告)号:US20090227694A1

    公开(公告)日:2009-09-10

    申请号:US12398679

    申请日:2009-03-05

    IPC分类号: C08J9/00

    摘要: The present invention concerns a method for the treatment of polyurethane foam, wherein the polyurethane foam is obtainable from a reaction mixture comprising an ethylene oxide/propylene oxide polyol component with an OH number of ≧20 mg KOH/g to ≦45 mg KOH/g and an isocyanate component with an NCO content of ≧20 weight-% to ≦49 weight-% which is selected from the group comprising diphenylmethane diisocyanate, toluene diisocyanate, their prepolymers with an ethylene oxide/propylene oxide polyol whose OH number is from ≧20 mg KOH/g to ≦45 mg KOH/g and/or their allophanates, ureas, biurets, uretdiones, isocyanurates or carbodiimides. The invention further concerns a polyurethane foam which has been treated by such a method. After the foam formation has finished, the polyurethane foam is irradiated with microwave radiation and the irradiated energy, in relation to the volume accessible by the microwave radiation, is from ≧1.0 kilojoules/liter to ≦2.23 kilojoules/liter. Such polyurethane foams may be used as flexible molded foams in furniture applications.

    摘要翻译: 本发明涉及一种用于处理聚氨酯泡沫的方法,其中聚氨酯泡沫可从含有OH => 20mg KOH / g至<= 45mg KOH的环氧乙烷/环氧丙烷多元醇组分的反应混合物获得 / g和NCO含量≥20重量%至<= 49重量%的异氰酸酯组分,其选自二苯基甲烷二异氰酸酯,甲苯二异氰酸酯,它们的预聚物与环氧乙烷/环氧丙烷多元醇,其OH数 来自> = 20mg KOH / g至<= 45mg KOH / g和/或其脲基甲酸酯,脲,缩二脲,脲二酮,异氰脲酸酯或碳二亚胺。 本发明还涉及通过这种方法处理的聚氨酯泡沫。 在泡沫形成完成之后,用微波辐射照射聚氨酯泡沫,相对于微波辐射可接近的体积照射的能量为≥1.0千焦/升至2.23千焦/升。 这种聚氨酯泡沫可以用作家具应用中的柔性模塑泡沫。