中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

10 records (took 0.022 seconds)

    7.
    发明专利
    未知

    公开(公告)号：DE1045360B

    公开(公告)日：1958-12-04

    申请号：DEB0037653

    申请日：1955-10-25

    Applicant: BASF AG

    Inventor： BRUNKHORST DR WILHELM ,  KERN DR EMIL ,  BAUMANN DR HANS

    IPC: C09B23/10

    Abstract: Textile materials of polyacrylonitrile or copolymers containing acrylonitrile are spindyed with basic dyestuffs of the formula: or in which X and Y = divalent groups which with the nitrogen atoms make up 5- or 6-membered rings, R=an alkyl, cycloalkyl, aryl or aralkyl group and Z-=an anion of a medium strong to strong acid such as halogen hydracids, sulphuric and methylsulphuric acids, p-toluene sulphonic acid and perchloric acid. Mixtures of the above dyes with diazacyanine may be employed. The dyestuff is incorporated in a spinning solution of polyacrylonitrile in dimethylformamide. The heterocyclic rings containing the radical X in the above formul may be thiazole, selenazole, pyridine, pyrimidine or indolenine rings; the radical Y with the nitrogen atom forms an indole, carbazole or quinoline ring which is hydrogenated at the nitrogen atom. All the rings may carry neutral substitutents and orthocondensed benzene or naphthalene rings, which may also be further substituted by neutral groups. Specification 616,385, [Group IV (c)], is referred to.ALSO:Textile materials of polyacrylonitrile or copolymers containing acrylonitrile are dyed with basic dyestuffs of the formula or in which X and Y=divalent groups which with the nitrogen atom make up 5- or 6-membered rings, R=an alkyl, cycloalkyl, aryl or aralkyl group and Z-=an anion of a medium strong to strong acid such as halogen hydracids, sulphuric and methylsulphuric acids, p-toluene sulphonic acid and perchloric acid. Mixtures of the above dyes with diazacyanine may be employed. Dyeing may be effected in acid, neutral or weakly alkaline baths or, if desired, spin dyeing may be effected by incorporating the dyestuff in a spinning solution of polyacrylonitrile in dimethylformamide. The heterocyclic rings containing the radical X in the above formul may be thiazole, selenazole, pyridine, pyrimidine or indolenine rings; the radical Y with the nitrogen atom forms an indole, carbazole or quinoline ring which is hydrogenated at the nitrogen atom. All the rings may carry neutral substituents and ortho-condensed benzene or naphthalene rings, which may also be further substituted by neutral groups. The dyestuffs may be prepared by condensing aldehydes of the formula with secondary amines of the formula or by condensing methylene compounds of the formula or their salts with formyl compounds of the formula or with heterocyclic imines of the formula in the presence of formylating agents such as formylamides. Specification 616,385 is referred to.

Patent Agency Ranking