Branched aromatic polycarbonates
    21.
    发明授权
    Branched aromatic polycarbonates 失效
    支链芳族聚碳酸酯

    公开(公告)号:US3897392A

    公开(公告)日:1975-07-29

    申请号:US40898173

    申请日:1973-10-23

    Applicant: BAYER AG

    CPC classification number: C08G64/14

    Abstract: Thermoplastic branched aromatic polycarbonates and novel orthoester branching agents. The polycarbonates may be characterized by structural elements of the formula

    Abstract translation: 热塑性支链芳族聚碳酸酯和新型原酯支化剂。 聚碳酸酯的特征可以在于式[R'(ODO-CO)nO-DO] 3C-X'的结构单元,其中X'= -ODO - ( - CO-ODO)n R',[-ODO -ODO)n R'] 3 D =并且可以相同或不同Z = C1-C10亚烷基或C3-C10亚环烷基,C2-C15亚烷基或C3-C15亚环烷基,单键,-O - , - S-, -SO - , - SO 2 - , - CO-或CH 3 CH 3 | | C -C - | CH 3 CH 3 R R = H,C 1 -C 4烷基或卤素,R'= H或-CO-O-芳基和N,N '=标识或不同,0和50之间,所有的N和N'在聚碳酸酯分子中的比例至少为1。

    1,2,4-oxadiazoles
    23.
    发明授权
    1,2,4-oxadiazoles 失效
    1,2,4-OXADIAZOLES

    公开(公告)号:US3862168A

    公开(公告)日:1975-01-21

    申请号:US19400571

    申请日:1971-10-29

    Applicant: BAYER AG

    CPC classification number: C07D271/06

    Abstract: Substituted oxadiazoles useful in the pesticide field having the general formula

    WHEREIN R is chlorine or a radical selected from the group of aliphatic, cycloaliphatic, lower alkyl, lower haloalkyl, Alpha dichloromethyl isocyanide dichloride, aryl, substituted aryl, heterocyclic and substituted heterocyclic are prepared by reacting a compound having the formula

    Abstract translation: 用于农药领域的取代的恶二唑可以制备为通式为WHEREIN R为氯或选自脂族,脂环族,低级烷基,低级卤代烷基,α-二氯甲基异氰化物二氯化物,芳基,取代的芳基,杂环和取代的杂环基团 通过使式R-CCl 2 -N = CClR的化合物与羟胺或其盐在0℃至200℃下反应。

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