Process for the preparation of dodecamethylenebismelamine
    41.
    发明授权
    Process for the preparation of dodecamethylenebismelamine 失效
    制备十二亚甲基三胺的方法

    公开(公告)号:US4683307A

    公开(公告)日:1987-07-28

    申请号:US833693

    申请日:1986-02-27

    CPC分类号: C07D251/70 C07C45/86

    摘要: The invention relates to a process for preparing dodecamethylenebismelamine (DMB) by reacting 2,4-diamino-6-chloro-1,3,5-triazine with 1,12-diaminododecane in an alkaline aqueous suspension, to which the diamine has been added in a water-miscible solvent. The product is used to stabilize aqueous formaldehyde solutions.

    摘要翻译: 本发明涉及一种通过使2,4-二氨基-6-氯-1,3,5-三嗪与1,12-二氨基十二烷在碱性水悬浮液中反应制备十二亚甲基双胺胺(DMB)的方法,其中加入二胺 在水溶性溶剂中。 该产品用于稳定甲醛水溶液。

    Process for the production of carbon black containing pigment-synthetic
resin concentrates
    42.
    发明授权
    Process for the production of carbon black containing pigment-synthetic resin concentrates 失效
    用于生产含黑色素的合成树脂浓缩物的方法

    公开(公告)号:US4379871A

    公开(公告)日:1983-04-12

    申请号:US865968

    申请日:1977-12-30

    CPC分类号: C08J3/226

    摘要: There is disclosed a process for the production of a pigment-synthetic resin concentrate containing an organic solvent soluble polymer and carbon black having quicker distributability in organic media such as lacquer binding media, printing inks, etc., such concentrates being especially suitable for the production of molded parts, castings, films and/or synthetic fibers, the process comprising continuously homogenizing in a mixer powdery pigment and powdery synthetic resin jointly with an organic solvent in a given case also containing plasticizer, stabilizer and/or dispersing acid, dispersing the pigment in the mixture, removing the solvent from the dispersion, comminuting the resulting pigment-synthetic resin concentrated and grinding the product.

    摘要翻译: 公开了一种用于生产含有有机溶剂可溶性聚合物的颜料合成树脂浓缩物的方法和在有机介质如漆结合介质,印刷油墨等中具有更快分配能力的炭黑,这种浓缩物特别适用于生产 模制件,铸件,膜和/或合成纤维,该方法包括在含有增塑剂,稳定剂和/或分散酸的给定情况下,在混合粉末颜料和粉末合成树脂中与有机溶剂连续均化,分散颜料 在混合物中,从分散体中除去溶剂,粉碎所得的颜料合成树脂,并研磨该产物。