专利名称：Method of fabrication of a dyeing aid发明人：TITTMANN, ROLF, DR.,ROTH, RUTH申请号：EP95810439.0申请日：19950704公开号：EP0692511A1公开日：19960117
摘要：The prodn. of basic polycondensates (I) comprises (a) reacting an amine offormula (1) with an ammonium salt (2) in presence of a non-aq. solvent (3); R1-R4 = H oralkyl (opt. substd. with amino, OH, CN or 1-4C alkoxy); A = alkylene (opt. substd. or opt.contg. in-chain heteroatom(s)); and then (b) reacting the protonated prod. from (a) with acyanamide (4) at elevated temp..
申请人：CIBA SPECIALTY CHEMICALS HOLDING INC.
地址：Klybeckstrasse 141 CH-4002 Basel CH
国籍：CH
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