Hydrolytically degradable polymers and hydrogels made therefrom
    1.
    发明授权
    Hydrolytically degradable polymers and hydrogels made therefrom 有权
    水解可降解的聚合物和水凝胶

    公开(公告)号:US06348558B1

    公开(公告)日:2002-02-19

    申请号:US09459312

    申请日:1999-12-10

    IPC分类号: C08G6400

    摘要: A water soluble polymer is provided having two or more oligomers linked to each other by hydrolytically degradable carbonate linkages. The polymer can be hydrolytically degraded into oligomers (e.g., oligomers of ethylene oxide) under physiological conditions. The polymer can be conjugated to biologically active agents such as proteins or peptides to impart improved water solubility, reduced immunogenicity, reduced rate of renal clearance, and increased stability. The polymer is useful in making hydrolytically degradable hydrogels which can be used in drug delivery and related biomedical applications. One example of the polymer is a poly(ether carbonate) of the formula X—O—[(—CH2CH2—O—)n—CO2—]n—(CH2CH2))n-y where X and Y are independently H, alkyl, alkenyl, aryl, or a reactive moiety, and at least one of X and Y is a reactive moiety.

    摘要翻译: 提供了具有两个或多个通过可水解降解的碳酸酯键相互连接的低聚物的水溶性聚合物。 在生理条件下,聚合物可以水解降解成低聚物(例如环氧乙烷的低聚物)。 聚合物可以与生物活性剂如蛋白质或肽缀合以赋予改善的水溶性,降低的免疫原性,降低的肾清除率和增加的稳定性。 该聚合物可用于制备可用于药物递送和相关生物医学应用的水解可降解水凝胶。 聚合物的一个实例是式XO - [( - CH 2 CH 2 -O-)n -CO 2 - ] n - (CH 2 CH 2))ny的聚(醚碳酸酯),其中X和Y独立地为H,烷基,烯基,芳基 ,或反应性部分,X和Y中的至少一个是反应性部分。

    Hydrolytically degradable polymers and hydrogels made therefrom
    7.
    发明授权
    Hydrolytically degradable polymers and hydrogels made therefrom 有权
    水解可降解的聚合物和水凝胶

    公开(公告)号:US07074878B1

    公开(公告)日:2006-07-11

    申请号:US10412642

    申请日:2003-04-10

    IPC分类号: C08G64/00

    摘要: A water soluble polymer is provided having two or more oligomers linked to each other by hydrolytically degradable carbonate linkages. The polymer can be hydrolytically degraded into oligomers (e.g., oligomers of ethylene oxide) under physiological conditions. The polymer can be conjugated to biologically active agents such as proteins or peptides to impart improved water solubility, reduced immunogenicity, reduced rate of renal clearance, and increased stability. The polymer is useful in making hydrolytically degradable hydrogels which can be used in drug delivery and related biomedical applications. On example of the polymer is a poly (ether carbonate) of the formula X—O—[(—CH2CH2—O—)n—CO2—]n—(CH2CH2))n-y where X and Y are independently H, alkyl, alkenyl, aryl, or a reactive moiety, and at least one of X and Y is a reactive moiety.

    摘要翻译: 提供了具有两个或多个通过可水解降解的碳酸酯键相互连接的低聚物的水溶性聚合物。 在生理条件下,聚合物可以水解降解成低聚物(例如环氧乙烷的低聚物)。 聚合物可以与生物活性剂如蛋白质或肽缀合以赋予改善的水溶性,降低的免疫原性,降低的肾清除率和增加的稳定性。 该聚合物可用于制备可用于药物递送和相关生物医学应用的水解可降解水凝胶。 聚合物的实例是式XO的聚(醚碳酸酯) - [( - CH 2 CH 2 -O - ) - N - -CO 2 - - - - - (CH 2 CH 2)) - (CH 2 CH 2) -y其中X和Y独立地是H,烷基,烯基,芳基或反应性部分,X和Y中的至少一个是反应性部分。

    Hydrolytically degradable polymers and hydrogels made therefrom
    8.
    发明授权
    Hydrolytically degradable polymers and hydrogels made therefrom 有权
    水解可降解的聚合物和水凝胶

    公开(公告)号:US07259224B2

    公开(公告)日:2007-08-21

    申请号:US11377973

    申请日:2006-03-17

    IPC分类号: C08G64/00

    摘要: A water soluble polymer is provided having two or more oligomers linked to each other by hydrolytically degradable carbonate linkages. The polymer can be hydrolytically degraded into oligomers (e.g., oligomers of ethylene oxide) under physiological conditions. The polymer can be conjugated to biologically active agents such as proteins or peptides to impart improved water solubility, reduced immunogenicity, reduced rate of renal clearance, and increased stability. The polymer is useful in making hydrolytically degradable hydrogels which can be used in drug delivery and related biomedical applications. On example of the polymer is a poly (ether carbonate) of the formula X—O—[(—CH2CH2-O-)n—CO2—]n—(CH2CH2))n -y where X and Y are independently H, alkyl, alkenyl, aryl, or a reactive moiety, and at least one of X and Y is a reactive moiety.

    摘要翻译: 提供了具有两个或多个通过可水解降解的碳酸酯键相互连接的低聚物的水溶性聚合物。 在生理条件下,聚合物可以水解降解成低聚物(例如环氧乙烷的低聚物)。 聚合物可以与生物活性剂如蛋白质或肽缀合以赋予改善的水溶性,降低的免疫原性,降低的肾清除率和增加的稳定性。 该聚合物可用于制备可用于药物递送和相关生物医学应用的水解可降解水凝胶。 聚合物的实例是式XO的聚(醚碳酸酯) - [( - CH 2 CH 2 -O - ) - N - -CO 2 - - - - - (CH 2 CH 2)) - (CH 2 CH 2) -y其中X和Y独立地是H,烷基,烯基,芳基或反应性部分,X和Y中的至少一个是反应性部分。

    Hydrolytically degradable polymers and hydrogels made therefrom
    10.
    发明授权
    Hydrolytically degradable polymers and hydrogels made therefrom 有权
    水解可降解的聚合物和水凝胶

    公开(公告)号:US07608678B2

    公开(公告)日:2009-10-27

    申请号:US11890162

    申请日:2007-08-03

    IPC分类号: C08G64/00 C08G63/02

    摘要: A water soluble polymer is described, the water soluble polymer comprising multiple hydrolytically degradable carbonate linkages in a backbone and, for each carbonate linkage in the backbone, an oligomer linked thereto by the carbonate linkage, wherein the oligomer is branched and, prior to being linked by the carbonate linkage, has the formula: R3[O—(—CHR1CH2—O—)n—]mH where R3 is a core branching moiety, R1 is H, (n) can range from 2 to 2000, and m is at least 3.

    摘要翻译: 描述了水溶性聚合物,水溶性聚合物在骨架中包含多个可水解降解的碳酸酯键,并且对于主链中的每个碳酸酯键,由碳酸酯键连接的低聚物,其中低聚物是分支的,并且在连接之前 通过碳酸酯键合具有下式:R 3 [O - ( - CHR 1 CH 2 -O-)n - ] mH,其中R 3是核心支化部分,R 1是H,(n)可以在2至2000的范围内,m是 至少3。