会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 56. 发明授权
    • Method for producing hexamethylene diamine
    • 六亚甲基二胺的制备方法
    • US06359178B1
    • 2002-03-19
    • US09762798
    • 2001-02-13
    • Rolf FischerPeter BasslerHermann LuykenFrank OhlbachJohann-Peter MelderMartin MergerAndreas AnsmannAlwin RehfingerGuido Voit
    • Rolf FischerPeter BasslerHermann LuykenFrank OhlbachJohann-Peter MelderMartin MergerAndreas AnsmannAlwin RehfingerGuido Voit
    • C07C20948
    • C07C209/48C07C211/12
    • A process for catalytic hydrogenation of adiponitrile to hexamethylenediamine at elevated temperature and elevated pressure in the presence of catalysts based on elemental iron as catalytically active component and ammonia as solvent comprises a) hydrogenating adiponitrile at from 70 to 220° C. and from 100 to 400 bar in the presence of catalysts based on elemental iron as catalytically active component and ammonia as solvent to obtain a mixture comprising adiponitrile, 6-aminocapronitrile, hexamethylenediamine and high boilers until the sum total of the 6-aminocapronitrile concentration and the adiponitrile concentration is within the range from 1 to 50% by weight, based on the ammonia-free hydrogenation mixture, b) removing ammonia from the hydrogenation effluent, c) removing hexamethylenediamine from the remaining mixture, d) separating 6-aminocapronitrile and adiponitrile from high boilers individually or together, and e) returning 6-aminocapronitrile, adiponitrile or mixtures thereof into step a).
    • 在基于作为催化活性组分的元素铁和作为溶剂的氨的催化剂存在下,在升高的温度和升高的压力下将己二腈催化氢化为己二胺的方法包括在70-220℃和100-400巴下氢化己二腈 在基于作为催化活性成分的元素铁和作为溶剂的氨的催化剂存在下,得到包含己二腈,6-氨基己腈,六亚甲基二胺和高沸点剂的混合物,直到6-氨基己腈浓度和己二腈浓度的总和在范围内 基于无氨氢化混合物,从1至50重量%,b)从氢化流出物中除去氨,c)从剩余的混合物中除去六亚甲基二胺,d)分别或一起从高锅炉中分离6-氨基己腈和己二腈, 和),返回6-氨基己腈,己二腈或其混合物 n步骤a)。
    • 59. 发明授权
    • Method of producing reactive halogen-free, polyisobutene
    • 生产无活性无卤聚异丁烯的方法
    • US5945575A
    • 1999-08-31
    • US11100
    • 1998-01-27
    • Christoph SigwartEugen GehrerUlrich MullerHans Peter RathRolf Fischer
    • Christoph SigwartEugen GehrerUlrich MullerHans Peter RathRolf Fischer
    • C08F4/02C08F4/06C08F4/16C08F4/18C08F10/10C07C2/02C08F10/00
    • C08F10/10
    • A process for the preparation of halogen-free, reactive polyisobutene having a content of terminal double bonds of more than 50 mol % and an average molecular weight M.sub.n of from 500 to 5000 dalton by the cationic polymerization of isobutene or isobutene-containing hydrocarbon mixtures in the liquid phase, wherein the polymerization is carried out at a temperature of from -30.degree. to +40.degree. C. over a heterogeneous polymerization catalyst containing at least one element acting as promoter and selected from Group IB, Group IIB, Group IIIB, Group IVB, Group VB, Group VIIB, or Group VIIIB of the Periodic Table or from Group IIA, Group IIIA, Group IVA, Group VA, or Group VIA of the Periodic Table or a number of said elements in each case in the form of an oxygen-containing compound and zirconium in the form of an oxygen-containing compound, said polymerization catalyst containing no industrially effective amounts of halogens.
    • PCT No.PCT / EP96 / 03441 Sec。 371日期:1998年1月27日 102(e)日期1998年1月27日PCT提交1996年8月5日PCT公布。 公开号WO97 / 06189 日期1997年2月20日通过异丁烯或异丁烯的阳离子聚合制备末端双键含量大于50摩尔%,平均分子量Mn为500-5000道尔顿的无卤,活性聚异丁烯的方法 其中聚合在-30℃至+ 40℃的温度下进行,所述非均相聚合催化剂含有至少一种作为助催化剂的元素,选自组IB,组IIB ,第IIIB组,第IVB组,第VBB组,第VIIB组或第VIIIB组,或第IIA组,第IIIA组,IVA组,VA组或第VIA组,或每种情况下所述组分数目 以含氧化合物和含氧化合物形式的锆的形式,所述聚合催化剂不含工业上有效量的卤素。