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    USE OF ALCOHOLS WHICH CONTAIN AT LEAST TWO URETHANE GROUPS FOR PRODUCING POLYETHER CARBONATE POLYOLS
    4.
    发明申请
    USE OF ALCOHOLS WHICH CONTAIN AT LEAST TWO URETHANE GROUPS FOR PRODUCING POLYETHER CARBONATE POLYOLS 审中-公开

    公开(公告)号：US20180291149A1

    公开(公告)日：2018-10-11

    申请号：US15573996

    申请日：2016-05-24

    申请人： Covestro Deutschland AG

    发明人： Urs Rauwald ,  Jörg Hofmann ,  Bert Klesczewski ,  Hartmut Nefzger ,  Aurel Wolf ,  Jens Langanke

    IPC分类号： C08G64/34

    CPC分类号： C08G64/34 ,  C08G18/163 ,  C08G18/1833 ,  C08G18/244 ,  C08G18/4018 ,  C08G18/44 ,  C08G18/4837 ,  C08G18/5045 ,  C08G65/2603 ,  C08G65/2606 ,  C08G65/2618 ,  C08G65/2663 ,  C08G71/04 ,  C08G2101/0008 ,  C08G2101/005 ,  C08G2101/0083

    摘要： The present invention relates to a method for producing polyether carbonate polyols by attaching alkyloxides and carbon dioxide to H-functional starter compounds, characterized in that at least one alcohol containing at least two urethane groups is used as the H-functional starter compound. The invention further relates to polyether carbonate polyols containing a structural unit of the formula (IV), wherein: R1 denotes a linear or branched C2 to C24-alkylene, which optionally can be interrupted by heteroatoms of O, S or N and can be substituted, preferably by CH2—CH2 or CH2—CH(CH3); R2 denotes a linear or branched C2 to C24-alkylene, C3 to C24-cycloalkylene, C4 to C24-alkylene, C5 to C24-aralkylene, C2 to C24-alkenylene, C2 to C24-alkynylene, each of which can optionally be interrupted by heteroatoms such as O, S or N and/or can be substituted with alkyl, aryl and/or hydroxyl groups, preferably C2 to C24-alkyls; R3 denotes H, linear or branched C1 to C24-alkyl, C3 to C24-cycloalkyl, C4 to C24-aryl, C5 to C24-aralkyl, C2 to C24-alkenyl, C2 to C24-alkynyl, each of which can optionally be interrupted by heteroatoms such as O, S or N and/or can each be substituted with alkyl, aryl and/or hydroxyl groups, preferably H; R4 denotes H, a linear of branched C1 to C24-alkyl, C3 to C24-cycloalkyl, C4 to C24-aryl, C5 to C24-aralkyl, C2 to C24-alkenyl, C2 to C24-alkynyl, each of which can optionally be interrupted by heteroatoms such as O, S or N and/or can each be substituted with alkyl, aryl and/or hydroxyl groups, preferably H; R5 denotes a linear or branched C2 to C24-alkylene, which can optionally be interrupted by heteroatoms such as O, S or N and can be substituted, preferably by CH2—CH2 or CH2—CH(CH3); and wherein R1 to R5 can be identical or different to each other.