Copoly(phenylene sulfide)
    101.
    发明授权
    Copoly(phenylene sulfide) 失效
    共聚(苯硫醚)

    公开(公告)号:US5021546A

    公开(公告)日:1991-06-04

    申请号:US536049

    申请日:1990-06-11

    CPC classification number: C08G75/0227 C08G75/0263 C08G75/14

    Abstract: A process for producing elemental iodine and a copoly(arylene sulfide) corresponding to the structure ##STR1## wherein y is in the range of 0.001 to 0.15, x is in the range of 0.02 to 0.65 and n is at least 100, consisting essentially of (1) reacting at a temperature above about 175.degree. C., a mixture of diiodobenzene and diiodobiphenyl and elemental sulfur to produce the copoly(arylene sulfide), and (2) recovering the elemental iodine.

    Abstract translation: 对应于结构 + TR 的元素碘和共聚(亚芳基硫醚)的方法,其中y在0.001至0.15的范围内,x在0.02至0.65的范围内,n至少为 100,基本上由(1)在高于约175℃的温度下反应,二碘苯和二碘联苯和元素硫的混合物产生共聚(亚芳基硫醚),和(2)回收元素碘。

    Carbonylation process for the production of aromatic
    102.
    发明授权
    Carbonylation process for the production of aromatic 失效
    羰基化方法生产芳香族

    公开(公告)号:US4845273A

    公开(公告)日:1989-07-04

    申请号:US188113

    申请日:1988-04-25

    CPC classification number: C07C51/10

    Abstract: Disclosed is a process for the production of aromatic carboxylic acids by the carbonylation of aromatic iodides in the presence of a rhodium catalyst and a Bronsted base in a hydrocarbon carboxylic acid reaction medium.

    Abstract translation: 公开了在烃羧酸反应介质中在铑催化剂和布朗斯台德碱存在下通过芳族碘化物的羰基化生产芳族羧酸的方法。

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