Oxytetramethylene glycol copolymer and method for producing the same
    3.
    发明申请
    Oxytetramethylene glycol copolymer and method for producing the same 有权
    聚四亚甲基二醇共聚物及其制造方法

    公开(公告)号:US20070173631A1

    公开(公告)日:2007-07-26

    申请号:US11730523

    申请日:2007-04-02

    IPC分类号: C08G65/00 C08G65/28 C08L71/00

    摘要: Disclosed is an oxytetramethylene glycol copolymer, which is obtained by copolymerizing tetrahydrofuran and neopentyl glycol and which has a specific number average molecular weight. Mn, a specific molecular weight distribution Mn/Mw, a specific neopentyl glycol copolymerization whole ratio Nw and a specific neopentyl glycol copolymerization partial ratio Nh, and a method for producing the same. Also disclosed is a method for purifying an oxytetramethylene glycol copolymer, which comprises adding a fresh tetrahydrofuran to a reaction mixture comprising an oxytetramethylene glycol copolymer and an unreacted diol, wherein the amount of added tetrahydrofuran is not less than the weight of the unreacted diol contained in the reaction mixture, and distilling off the unreacted diol together with the added tetrahydrofuran.

    摘要翻译: 公开了通过四氢呋喃和新戊二醇的共聚得到的具有特定数均分子量的氧四亚甲基二醇共聚物。 Mn,特定分子量分布Mn / Mw,特定的新戊二醇共聚整体比N N和特定的新戊二醇共聚部分比例N ,以及其制备方法 一样。 还公开了一种用于纯化含氧四亚甲基二醇共聚物的方法,其包括向包含氧化四亚甲基二醇共聚物和未反应的二醇的反应混合物中加入新鲜的四氢呋喃,其中加入的四氢呋喃的量不小于 反应混合物,并与加入的四氢呋喃一起蒸馏出未反应的二醇。

    Oxytetramethylene glycol copolymer and process for producing the same
    4.
    发明授权
    Oxytetramethylene glycol copolymer and process for producing the same 有权
    氧四亚甲基二醇共聚物及其制备方法

    公开(公告)号:US07217783B2

    公开(公告)日:2007-05-15

    申请号:US10250859

    申请日:2001-04-16

    IPC分类号: C08F6/10 C08J3/02

    摘要: An oxytetramethylene glycol copolymer obtained by copolymerizing tetrahydrofuran and neopentyl glycol which has a specific number average molecular weight Mn, a specific molecular weight distribution Mw/Mn, a specific neopentyl glycol copolymerization whole ratio Nw and a specific neopentyl glycol copolymerization partial ratio Nh; a method for producing the same; and a method for purifying an oxytetramethylene glycol copolymer using fresh tetrahydrofuran.

    摘要翻译: 通过将具有特定数均分子量Mn,特定分子量分布Mw / Mn,特定的新戊二醇共聚整体比N N和特定的新戊基二醇的新戊二醇共聚得到的氧化四亚甲基二醇共聚物 二醇共聚部分比例N H 2; 其制造方法; 以及使用新鲜四氢呋喃纯化氧四亚甲基二醇共聚物的方法。

    Oxytetramethylene glycol copolymer and method for producing the same
    7.
    发明授权
    Oxytetramethylene glycol copolymer and method for producing the same 有权
    聚四亚甲基二醇共聚物及其制造方法

    公开(公告)号:US07485696B2

    公开(公告)日:2009-02-03

    申请号:US11730523

    申请日:2007-04-02

    IPC分类号: C08F6/10 C08F2/06

    摘要: Disclosed is an oxytetramethylene glycol copolymer, which is obtained by copolymerizing tetrahydrofuran and neopentyl glycol and which has a specific number average molecular weight Mn, a specific molecular weight distribution Mw/Mn, a specific neopentyl glycol copolymerization whole ratio Nw and a specific neopentyl glycol copolymerization partial ratio Nh, and a method for producing the same. Also disclosed is a method for purifying an oxytetramethylene glycol copolymer, which comprises adding a fresh tetrahydrofuran to a reaction mixture comprising an oxytetramethylene glycol copolymer and an unreacted diol, wherein the amount of added tetrahydrofuran is not less than the weight of the unreacted diol contained in the reaction mixture, and distilling off the unreacted diol together with the added tetrahydrofuran.

    摘要翻译: 公开了通过四氢呋喃和新戊二醇的共聚获得的氧化四亚甲基二醇共聚物,其具有特定的数均分子量Mn,特定分子量分布Mw / Mn,特定的新戊二醇共聚合比Nw和特定的新戊二醇共聚 部分比例Nh及其制造方法。 还公开了一种用于纯化含氧四亚甲基二醇共聚物的方法,其包括向包含氧化四亚甲基二醇共聚物和未反应的二醇的反应混合物中加入新鲜的四氢呋喃,其中加入的四氢呋喃的量不小于 反应混合物,并与加入的四氢呋喃一起蒸馏出未反应的二醇。