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公开(公告)号:JPS5297914A
公开(公告)日:1977-08-17
申请号:JP1218877
申请日:1977-02-08
IPC分类号: D06M13/02 , C07C273/18 , C07C275/62 , D06M13/322 , D06M13/395 , D06M13/425 , D06M15/564
摘要: Bisulphite adducts of biuret-polyisocyanates are prepared by reacting an aqueous solution containing more than 200 gm/l. of sodium bisulphite with a selected alcohol and a biuret-polyisocyanate having one of the following structures: (III) +TR (IV) (V) wherein R in each occurrence is the same or different divalent alkyl, cycloalkyl, aryl or aralkyl radical. A preferred adduct is the adduct of N,N',N''-tris(6-isocyanatohexyl) biuret. The adducts are useful for the treatment of fibrous materials, particularly as shrink-resisting agents, for surface coatings and for forming elastomers.