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126 条记录 (耗时 0.021 秒)

    Process for the preparation of aromatic dicarboxylic acids and aromatic hydrocarbons
    121.
    发明授权
    Process for the preparation of aromatic dicarboxylic acids and aromatic hydrocarbons 失效
    制备芳族二羧酸和芳香烃的方法

    公开(公告)号：US5183926A

    公开(公告)日：1993-02-02

    申请号：US759794

    申请日：1991-09-13

    申请人： Richard Weider ,  Thomas Scholl

    发明人： Richard Weider ,  Thomas Scholl

    IPC分类号： C07C13/28 ,  C07C51/255 ,  C07C69/76 ,  C07C309/65

    CPC分类号： C07C309/65 ,  C07C13/28 ,  C07C51/255 ,  C07C69/76 ,  C07C2101/14

    摘要： Aromatic dicarboxylic acids of the formula ##STR1## in which R.sup.1, R.sup.2, m, n, and X have the meaning mentioned in the description,can be prepared from the bisphenols, on which they are based, of the formula ##STR2## if the bisphenols are first reacted to give the bissulphonates, the sulphonate groups are removed catalytically with H.sub.2 and the hydrocarbons obtained in this way are doubly acylated in a known manner and the acyl groups are oxidized to the carboxyl groups.Many of the aromatic dicarboxylic acids which can be prepared in this way are new.

    摘要翻译： 其中R 1，R 2，m，n和X具有说明书中提到的含义的式（I）的芳族二羧酸可由其所基于的双酚制备，具有下式：IMAGE 如果双酚首先反应得到双磺酸盐，用H2催化除去磺酸盐基团，以这种方式得到的烃以已知的方式进行双重酰化，酰基被氧化成羧基。 可以以这种方式制备的许多芳族二羧酸是新的。

    Condensation products of thioalkylene oxides of polythio-alkylene oxides with polyalkylene oxides, their preparation and their use as breakers for water-in-oil emulsions
    124.
    发明授权
    Condensation products of thioalkylene oxides of polythio-alkylene oxides with polyalkylene oxides, their preparation and their use as breakers for water-in-oil emulsions 失效
    聚硫化烯氧化物的硫代环氧烷与聚环氧烷的缩合产物，它们的制备及其作为油包水乳液的破乳剂的用途

    公开(公告)号：US4745175A

    公开(公告)日：1988-05-17

    申请号：US821568

    申请日：1986-01-22

    申请人： Thomas Scholl ,  Wolfgang Oberkirch ,  Hermann Perrey

    发明人： Thomas Scholl ,  Wolfgang Oberkirch ,  Hermann Perrey

    IPC分类号： C08G65/34 ,  C08G81/00 ,  C10G33/04 ,  C10M105/08

    CPC分类号： C10G33/04 ,  C08G65/34 ,  C08G81/00

    摘要： New sulphur-containing polyethers based on optionally polymeric thioalkylene oxides and polyalkylene oxides, method for their preparation and their use as breakers for water-in-oil emulsions, in particular, as breakers for crude oil emulsions. The polyethers are of the formula ##STR1## in which R.sub.1 and R.sub.2, independently of each other, represent hydrogen and/or a straight-chain or branched C.sub.1 to C.sub.20 alkyl group,R.sub.3 and R.sub.4, independently of each other and independently of adjacent ##STR2## groups, represent in each case hydrogen, a straight-chain or branched C.sub.1 to C.sub.20 alkyl group and/or for --A--O--B, whereA denotes a straight-chain or branched C.sub.1 to C.sub.20 alkylene group andB denotes a straight-chain or branched C.sub.1 to C.sub.20 alkylene-OH group or a ##STR3## group with R.sub.1 and R.sub.2 as defined above, n represents an integer from 1 to 100 andm represents an integer from 10 to 2,500.

    摘要翻译： 基于任选的聚合硫代亚烷基氧化物和聚环氧烷的新型含硫聚醚，其制备方法及其作为油包水乳液的破乳剂，特别是作为原油乳液的破碎剂。 聚醚具有式（I）的化合物，其中R 1和R 2彼此独立地表示氢和/或直链或支链C 1至C 20烷基，R 3和R 4彼此独立地且独立地 相邻的“IMAGE”基团表示氢，直链或支链C1至C20烷基和/或-AOB，其中A表示直链或支链C1至C20亚烷基，B表示直链 链或支链C1至C20亚烷基-OH基团或具有如上定义的R1和R2的基团，n表示1至100的整数，m表示10至2,500的整数。