Polyphenylene ether resin
    1.
    发明授权
    Polyphenylene ether resin 失效
    聚苯醚树脂

    公开(公告)号:US5861437A

    公开(公告)日:1999-01-19

    申请号:US930433

    申请日:1997-10-07

    CPC分类号: C08L71/126 C08G65/485

    摘要: A poly(phenylene ether) resin composed of structural units represented by the general formula: ##STR1## (wherein R.sup.1, R.sup.2 and R.sup.3 represent each alkyl, cycloalkyl, etc. or H (provided that two or more of R.sup.1, R.sup.2 and R.sup.3 do not represent H at the same time), or one of R.sup.1, R.sup.2 and R.sup.3 represents alkyl or H while the others together form a saturated ring, or R.sup.1, R.sup.2 and R.sup.3 together form an aromatic ring; A represents alkyl; p is an integer of from 3 to 5; and Y.sup.- represents a pharmaceutically acceptable acid residue) and/or structural units represented by the general formula: ##STR2## (wherein R.sup.4, R.sup.5 and R.sup.6 represents each alkyl, cycloalkyl, etc. or H (provided that two or more of R.sup.4, R.sup.5 and R.sup.6 do not represent H at the same time), or one of R.sup.4, R.sup.5 and R.sup.6 represents alkyl or H while the others together form a saturated ring, or R.sup.4, R.sup.5 and R.sup.6 together form an aromatic ring; and A, p and Y.sup.- have same meanings as defined above) and structural units represented by the general formula: ##STR3## (wherein R.sup.7 and R.sup.8 represents each alkyl, cycloalkyl, etc. or together form a saturated ring; q is an integer of from 3 to 20; and A, p, and Y.sup.- have same meanings as defined above) wherein the sum of the contents of the structural units represented by the general formula (I) and the structural units represented by the general formula (II) amounts to 40 to 96% by mole and the content of the structural units represented by the general formula (III) amounts to 4 to 60% by mole based upon the content of phenylene ether component and a process for producing the same. The poly(phenylene ether) resins have the effect of adsorbing bile acids and are useful as a cholesterol reducing agent.

    摘要翻译: PCT No.PCT / JP96 / 00931 Sec。 371日期1997年10月7日第 102(e)日期1997年10月7日PCT提交1996年4月5日PCT公布。 公开号WO96 / 32435 日期:1996年10月17日由以下通式表示的结构单元构成的聚苯醚树脂:烷基,环烷基等或H(前提是R1,R2和R3中的两个或更多个不表示相同的H 时间),或者R1,R2和R3中的一个表示烷基或H,而另一个一起形成饱和环,​​或者R1,R2和R3一起形成芳香环; A代表烷基; p是3至5的整数; 和/或由以下通式表示的结构单元:其中R 4,R 5和R 6表示各自的烷基,环烷基等或H(条件是两个或多个 R4,R5和R6不同时表示H),或者R4,R5和R6中的一个表示烷基或H,而另一个共同形成饱和环,​​或者R4,R5和R6一起形成芳香环; A,p和Y-具有与上述相同的含义)和由通式(III)表示的结构单元(其中R 7和R 8表示各个烷基,环烷基等或一起形成饱和环; q为 3〜20的整数,A,p,Y-具有与上述相同的含义),其中由通式(I)表示的结构单元的含量和由通式 (II)表示的结构单元的含量为40〜96摩尔%,通式(I)表示的结构单元的含量 II)相对于亚苯基醚成分的含量为4〜60摩尔%及其制造方法。 聚苯醚树脂具有吸附胆汁酸的作用,可用作胆固醇降低剂。