Verfahren zum Faerben von Polyacrylnitrilgebilden

• Main Authors: HEES,WALTER, SCHMITT,ERNST,DR, QUAEDVLIEG,MATHIEU,DR
• Format: Patent
• Language: German
• Published: 09.06.1971
• Subjects: ACCESSORIES THEREFOR; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; CINEMATOGRAPHY; DYEING LEATHER, FURS, OR SOLID MACROMOLECULAR SUBSTANCES INANY FORM; DYEING OR PRINTING TEXTILES; ELECTROGRAPHY; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; HOLOGRAPHY; LAUNDERING; PHOTOGRAPHY; PHYSICS; TEXTILES; TREATMENT OF TEXTILES OR THE LIKE

Quaternization products are obtained by reacting olefins of formula R-CH2-CH = CH2 with maleic anhydride to give the alkenyl-succinic anhydrides of formula <FORM:1119628/C2/1> which is then reacted with a diamine of formula <FORM:1119628/C2/2> to give a compound of formula <FORM:1119628/C2/3> which is then quaternized, in the above formulae R is an alkyl radical of 6-22 carbon atoms, R1 and R2 are alkyl radicals of 1-3 carbon atoms and n is 2-6. In examples the compounds <FORM:1119628/C2/4> <FORM:1119628/C2/5> are prepared.ALSO:Polyacrylonitrile materials including copolymers (as defined) are dyed with cationic dyes in the presence of a quarternisation product of an alkenyl-succinic acid imidamine of the formula <FORM:1119628/D1-D2/1> in which R is an alkyl radical of 6-22 carbon atoms, R1 and R2 are independently of one another alkyl radicals of 1-3 carbon atoms and n is 2-6. Any conventional cationic dye may be used, the quarternisation product being generally present in amounts of 0.5-2.5% by weight of the polyacrylonitrile material. The polyacrylonitrile material may be dyed by dyeing processes in which the dye is added with the quaternisation product or afterwards. Conventional salts e.g. sodium acetate or sulphate and acids e.g. formic and acetic may also be used. Very level dyeings are obtained.