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4 条记录 (耗时 0.036 秒)

    Method of producing a polyether prepolymer
    1.
    发明授权
    Method of producing a polyether prepolymer 失效
    聚醚预聚物的制备方法

    公开(公告)号：US4792603A

    公开(公告)日：1988-12-20

    申请号：US914515

    申请日：1986-10-02

    申请人： Takeo Saegusa ,  Jiro Horikawa ,  Masahiro Niwano ,  Takenobu Kanazawa

    发明人： Takeo Saegusa ,  Jiro Horikawa ,  Masahiro Niwano ,  Takenobu Kanazawa

    IPC分类号： C08G69/40 ,  C07D207/00 ,  C07D211/36 ,  C08G69/14

    CPC分类号： C08G69/40

    摘要： A method for producing a polyether-polyamide block copolymer is disclosed, comprising copolymerizing, in the presence of an anionic polymerization catalyst, a lactam and a polyether prepolymer presented by the formula: ##STR1## wherein R.sup.1 is an aliphatic hydrocarbon residual group having 2 to 6 carbon atoms, R.sup.2 is an aliphatic hydrocarbon residual group having 3 to 12 carbon atoms, and n is an integer of 4 to 450. The polyester prepolymer is prepared by reacting a polyoxyalkylene having two terminal hydroxy groups with an N-chlorocarbonyl lactam. The polyether-polyamide block according to the invention has high impact strength and is substantially colorless.

    摘要翻译： 公开了一种制备聚醚 - 聚酰胺嵌段共聚物的方法，该方法包括在阴离子聚合催化剂存在下共聚内酰胺和由下式表示的聚醚预聚物：其中R1是脂族烃残基， 6个碳原子，R 2是具有3至12个碳原子的脂族烃残基，n是4至450的整数。聚酯预聚物通过具有两个末端羟基的聚氧化烯与N-氯羰基内酰胺反应制备。 根据本发明的聚醚 - 聚酰胺嵌段具有高的冲击强度，并且基本上是无色的。

    Star block copolymer from lactam and polyol and process for the production thereof
    2.
    发明授权
    Star block copolymer from lactam and polyol and process for the production thereof 失效
    来自内酰胺和多元醇的星形嵌段共聚物及其制备方法

    公开(公告)号：US4650608A

    公开(公告)日：1987-03-17

    申请号：US763089

    申请日：1985-08-06

    申请人： Saegusa Takeo ,  Jiro Horikawa ,  Masahiro Niwano ,  Takenobu Kanazawa

    发明人： Saegusa Takeo ,  Jiro Horikawa ,  Masahiro Niwano ,  Takenobu Kanazawa

    IPC分类号： C08G65/26 ,  C08G65/333 ,  C08G69/18 ,  C08G69/40 ,  C08G67/00

    CPC分类号： C08G65/33396 ,  C08G65/26 ,  C08G69/18 ,  C08G69/40

    摘要： A novel star block copolymer represented by the general formula as shown below and a process for the production thereof are described. The copolymer has superior physical properties, particularly impact strength and, furthermore, is reduced in coloration. Thus the copolymer can find numerous uses; for example, it can be used in preparation of fibers, foams, automotive parts, and electrical components. The copolymer is produced by copolymerizing a star-shaped polyether prepolymer and a lactam, said prepolymer being prepared by reacting a star-shaped polyoxyalkylene having at least 3 terminal hydroxy groups and an N-chlorocarbonyl lactam, in the presence of an anionic polymerization catalyst. ##STR1## In this formula, all the symbols are as defined hereinbefore.

    摘要翻译： 对由下述通式表示的新型星形嵌段共聚物及其制造方法进行说明。 共聚物具有优异的物理性能，特别是冲击强度，此外，着色减少。 因此共聚物可以发现许多用途; 例如，它可用于制备纤维，泡沫，汽车部件和电气部件。 共聚物通过使星形聚醚预聚物和内酰胺共聚来制备，所述预聚物通过使具有至少3个末端羟基的星形聚氧化烯和N-氯羰基内酰胺在阴离子聚合催化剂存在下反应来制备。 在该公式中，所有符号如上文所定义。