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40 条记录 (耗时 0.012 秒)

    Synthetic tanning agents and process for their production
    6.
    发明公开
    Synthetic tanning agents and process for their production 失效
    合成调味剂及其生产工艺

    公开(公告)号：EP0037250A3

    公开(公告)日：1981-10-14

    申请号：EP81301293

    申请日：1981-03-26

    申请人： BP Chemicals Limited

    发明人： Currie, Andrew Christopher ,  Yeomans, Bertram

    IPC分类号： C14C03/20 ,  C08G08/18 ,  C08G08/28

    CPC分类号： C14C3/20 ,  C08G8/18 ,  C08G8/28

    摘要： This invention relates to a process for producing syntans from a phenolic material rich in ortho- and para- substituted alkyl phenols. The alkyl phenols are subjected to sulphonation and condensation reaction with formaldehyde to produce a synthetic sulphonated resin. It has been found that the phenolic material used produces a sulphonated resin which is superior in solubility and colour to those conventionally produced from alkyl phenols rich in the meta- isomer. The process also enables the use of a crude alkylate from phenol directly without any purification without adversely affecting the quality of the resin.

    摘要翻译： 本发明涉及由富含邻位和对位取代的烷基酚的酚类物质制备合成鞣剂的方法。 烷基酚与甲醛进行磺化和缩合反应，生成合成磺化树脂。 已经发现，使用的酚醛树脂产生的磺化树脂的溶解性和颜色优于通常由富含间位异构体的烷基酚制备的那些。 该方法还可以直接使用来自苯酚的粗烷基化物，而不需要任何纯化，而不会不利地影响树脂的质量。

    Hydroxy-aromatic compound, process for the preparation thereof, and use of the compound
    8.
    发明公开
    Hydroxy-aromatic compound, process for the preparation thereof, and use of the compound 审中-公开
    Hydroxyaromatische Verbindung，deren Herstellung und Verwendung

    公开(公告)号：EP1698648A1

    公开(公告)日：2006-09-06

    申请号：EP05075496.9

    申请日：2005-03-01

    申请人： DSM IP Assets B.V.

    发明人： Van Benthem, Rudolfus Antonius Theodorus Maria ,  Kierkels, Renier Henricus Maria

    IPC分类号： C08G14/12 ,  C08G14/04 ,  C07C69/732

    CPC分类号： C07C69/732 ,  C08G8/18 ,  C08G8/28 ,  C08G14/04

    摘要： The invention relates to a hydroxy-aromatic compound of formula (I)-

    wherein:

    ■ at least one of the set consisting of R 1 , R 3 , and R 5 is a group of formula (II); any remaining one or two of the set consisting of R 1 , R 3 , and R 5 being H, OH, a C 1 -C 12 alkyl group or an oligomeric or polymeric system;
    ■ R 2 and R 4 are H, OH, a C 1 -C 12 alkyl group or an oligomeric or polymeric system;
    ■ formula (II) is the following group:


    wherein EWG is an electron-withdrawing group.

    摘要翻译： 本发明涉及式（I）的羟基 - 芳族化合物，其中： - 由R 1，R 3和R 5组成的组中的至少一个是式（II）的基团。 由R 1，R 3和R 5组成的组中的任何剩余的一个或两个为H，OH，C 1 -C 12烷基或低聚或聚合体系; -R 2和R 4是H，OH，C 1 -C 12烷基或低聚或聚合体系; - 式（II）是以下基团：其中EWG是吸电子基团。