Process for producing 2-(4-hydroxyphenoxy) propionate derivatives
    1.
    发明授权
    Process for producing 2-(4-hydroxyphenoxy) propionate derivatives 失效
    2-(4-羟基苯氧基)丙酸酯衍生物的制备方法

    公开(公告)号:US4537984A

    公开(公告)日:1985-08-27

    申请号:US604156

    申请日:1984-04-26

    IPC分类号: C07C69/712 C07C69/76

    CPC分类号: C07C69/712

    摘要: A process for producing a 2-(4-hydroxyphenoxy) propionate derivative represented by the formula: ##STR1## where Alk is a C.sub.1 -C.sub.5 alkyl group, which comprises reacting a phenoxy propionate derivative represented by the formula: ##STR2## where Alk is as defined above, with a peroxide to obtain a formate derivative represented by the formula: ##STR3## where Alk is as defined above, and hydrolyzing the formate of the formula III.

    摘要翻译: 一种制备式(Ⅰ)所示的2-(4-羟基苯氧基)丙酸酯衍生物的方法,其中Alk是C1-C5烷基,其中包括使由下式表示的苯氧基丙酸酯衍生物: (II)其中Alk如上所定义,与过氧化物反应,得到式(III)表示的甲酸酯衍生物,其中Alk如上所定义,并水解式III的甲酸酯。

    Thermosetting resin composition comprising perfluoro containing amine
terminated oligomer and polymaleimide
    2.
    发明授权
    Thermosetting resin composition comprising perfluoro containing amine terminated oligomer and polymaleimide 失效
    包含全氟含胺封端的低聚物和聚马来酰亚胺的热固性树脂组合物

    公开(公告)号:US5194518A

    公开(公告)日:1993-03-16

    申请号:US884892

    申请日:1992-05-18

    摘要: A thermosetting resin composition, and a resin sheet, a prepreg and a laminated sheet using the composition are disclosed, which composition comprises (A) an amine-terminated oligomer represented by formula (I): ##STR1## wherein Ar.sub.1 represents a divalent aromatic group, AR.sub.2 represents a tetravalent aliphatic or aromatic group, and a represents an integer of at least 1; and (B) a polymaleimide represented by formula (II): ##STR2## wherein Ar.sub.3 represents an aliphatic group having two or more carbon atoms or an aromatic group, and b represents an integer of at least 2, provided that a part of the whole of hydrogen atoms of at least one group of Ar.sub.1, Ar.sub.2 and Ar.sub.3 in formulae (I) and (II) is substituted by fluorine atoms.

    摘要翻译: 公开了一种热固性树脂组合物和树脂片,预浸料和使用该组合物的层压片,该组合物包含(A)由式(I)表示的胺封端的低聚物:其中Ar 1表示 二价芳族基团,AR2表示四价脂肪族或芳香族基团,a表示1以上的整数, 和(B)由式(II)表示的聚马来酰亚胺:其中Ar 3表示具有两个或更多个碳原子或芳族基团的脂族基团,b表示至少2的整数,条件是部分 的式(I)和(II)中的至少一个Ar 1,Ar 2和Ar 3基团的全部氢原子被氟原子取代。