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    • 1. 发明授权
    • Process for the formation and recovery of
poly(bisbenzimidazoenzophenanthroline)
    • 聚(双苯并咪唑并苯并菲菲)的形成和回收方法
    • US4005058A
    • 1977-01-25
    • US655339
    • 1976-02-05
    • Edward C. CheneveyHarry T. Hanson
    • Edward C. CheneveyHarry T. Hanson
    • C08G73/20C08G20/00C08G20/20C08G20/32C08G33/02
    • C08G73/20
    • An improved overall process is provided wherein poly(bisbenzimidazobenzophenanthroline) is formed on an expeditious basis and is recovered from the reaction mass in substantially pure form. Appropriate quantities of 1,4,5,8-tetracarboxy naphthalene dianhydride and 3,3',4,4' -tetraaminobiphenyl are condensed as defined) in a reaction zone while dissolved in molten antimony trichloride, and the resulting reaction mass containing the dissolved product is discharged into a precipitation zone containing hydrochloric acid (as defined). The resulting solid product is separated and dried. The liquid portion which is separated from the solid product contains antimony trichloride dissolved in hydrochloric acid and is subjected to distillation which substantially separates these components. The antimony trichloride is recycled to the reaction zone, and the hydrochloric acid is recycled to the precipitation zone.
    • 提供了一种改进的总体方法,其中快速形成聚(双苯并咪唑基苯并菲罗啉),并以基本上纯的形式从反应物质中回收。 合适量的1,4,5,8-四羧基萘二酐和3,3',4,4'-四氨基联苯在反应区中缩合,同时溶解在熔融的三氯化锑中,所得反应物质含有溶解的 将产物排入含有盐酸的沉淀区(定义)。 将所得固体产物分离并干燥。 与固体产物分离的液体部分含有溶解在盐酸中的三氯化锑,并进行基本分离这些组分的蒸馏。 将三氯化锑再循环至反应区,将盐酸再循环至沉淀区。
    • 4. 发明授权
    • Process for preparing triketoimidazolidines and product
    • 制备三酮咪唑烷和产物的方法
    • US3887507A
    • 1975-06-03
    • US21869172
    • 1972-01-18
    • REICHHOLD ALBERT CHEMIE AG
    • REESE JOHANNESKRAFT KURT
    • C07D233/96C08G18/34C08G18/38C08G18/83C08G73/06C08G33/02C08G33/10
    • C08G73/0616C07D233/96C08G18/34C08G18/3821C08G18/838
    • A process for the manufacture of modified N,N''-substituted 2,4,5-triketoimidazolidines which comprises reacting (a) at least one oxamidic ester having the group -NH-CO-CO-ORv wherein Rv is an aliphatic hydrocarbon group having up to 18 carbon atoms, a cycloaliphatic hydrocarbon group with up to 8 carbon atoms, a mononuclear aromatic hydrocarbon group having up to 14 carbon atoms, a mononuclear aromatic hydrocarbon group being substituted by one or more hydrocarbon groups having a total of up to 14 carbon atoms, (b) at least one isocyanate or isocyanate forming compound and (D) at least one compound selected from the group consisting of (d) an azomethine of formula (37) (cf. formula sheet), (e) a metal chelate of component (d), (f) an azo compound of formula (38), (g) a metal chelate component (f), (h) a combination of at least two of compounds (d) to (g) and, if desired, (c) a polycarboxylic acid, and a film, coating or shaped article prepared from said reaction product.
    • 制备改性的N,N'-取代的2,4,5-三酮咪唑烷的方法,其包括使(a)至少一种具有基团-NH-CO-CO-ORv的酰胺基酯,其中Rv是脂族烃基, 至多18个碳原子,具有至多8个碳原子的脂环族烃基,具有至多14个碳原子的单核芳族烃基,单核芳烃基团被一个或多个总共多达14个碳原子的烃基取代 原子,(b)至少一种异氰酸酯或异氰酸酯形成化合物和(D)至少一种选自(d)式(37)的偶氮甲碱(参见式)的化合物,(e)金属螯合物 组分(d),(f)式(38)的偶氮化合物,(g)金属螯合物组分(f),(h)化合物(d)至(g)中的至少两种的组合, 所需的(c)多羧酸,以及由所述反应产物制备的薄膜,涂层或成型制品。