ANTIMICROBIAL HYDROPHILIC POLYURETHANE FOAM SPONGES
    1.
    发明申请
    ANTIMICROBIAL HYDROPHILIC POLYURETHANE FOAM SPONGES 审中-公开
    抗微生物亲水聚氨酯泡沫海绵

    公开(公告)号:WO2018080788A1

    公开(公告)日:2018-05-03

    申请号:PCT/US2017/056033

    申请日:2017-10-11

    Abstract: The inventors of the present disclosure recognized that, surprisingly, the antimicrobial treatments used on cellulosic sponges do not work in hydrophilic polyurethane sponges. As such, the inventors of the present disclosure discovered a need for an antimicrobial treatment for use on hydrophilic polyurethane foam sponges. The present inventors invented one antimicrobial composition for use on hydrophilic polyurethane foam sponges including an acetate salt solution humectant. The present inventors invented another antimicrobial composition for use on hydrophilic polyurethane foam sponges including a non-halogen humectant comprising a salt solution having a pH between about 3 and 10 and a water activity of less than 0.9 at 25° C.

    Abstract translation: 本发明的发明人意外地认识到,在纤维素海绵上使用的抗微生物处理剂在亲水性聚氨酯海绵中不起作用。 如此,本公开的发明人发现需要用于亲水性聚氨酯泡沫海绵的抗微生物处理。 本发明人发明了一种用于包括乙酸盐溶液保湿剂的亲水性聚氨酯泡沫海绵的抗微生物组合物。 本发明人发明了另一种用于亲水性聚氨酯泡沫海绵的抗微生物组合物,其包括非卤素湿润剂,其包含pH值在约3至10之间且在25℃时水活度小于0.9的盐溶液。 下进行。

    SULFOBETAINE-MODIFIED POLYURETHANE OR POLYUREA FOAM

    公开(公告)号:WO2021074857A1

    公开(公告)日:2021-04-22

    申请号:PCT/IB2020/059725

    申请日:2020-10-15

    Abstract: A hydrophilic foam comprises a polymer formed from a betaine prepolymer that is a reaction product of a betaine of formula (I) with one or more polyether glycols and a polyfunctional isocyanate compound of formula (II), (I) wherein R1, R2, R3, and R4 are each hydrocarbon groups having from 1 to 4 carbon atoms, A- is an anionic functional group, and X+ is a cationic atom, (II) wherein R5 is a linear or branched aliphatic hydrocarbon group having from 2 to 12 carbon atoms, or a 5- or 6-membered aliphatic or aromatic carbocyclic group having from 5 to 50 carbon atoms, and b is an integer having a value of 1, 2, or 3.

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