Hydrophilic ester polyurethane foams
    1.
    发明申请
    Hydrophilic ester polyurethane foams 审中-公开
    亲水酯聚氨酯泡沫

    公开(公告)号:US20070191502A1

    公开(公告)日:2007-08-16

    申请号:US11353816

    申请日:2006-02-14

    IPC分类号: C08G18/00

    摘要: An ester polyurethane foam is prepared by reacting one or a mixture of hydrophilic polyester polyols with one or more isocyanates and a cell opening surfactant. The cured foam does not require post-foaming processing to achieve a water absorption rate of at least 20 pounds of water per square foot per minute, preferably at least 25 pounds of water per square foot per minute. The foam may be bonded to a substrate to form an absorbent article, such as a sponge, mop head, or a medical or industrial wipe.

    摘要翻译: 通过使一种或多种亲水性聚酯多元醇与一种或多种异氰酸酯和开孔表面活性剂反应制备酯聚氨酯泡沫。 固化的泡沫不需要后发泡处理,以达到每平方英尺每分钟至少20磅的水的吸水率,优选每平方英尺每分钟至少25磅的水。 泡沫可以结合到基底上以形成吸收制品,例如海绵,拖把头,或医疗或工业擦拭物。