Abstract:
Färben oder Bedrucken von Textilmaterial aus Cellulosefasern oder Gemischen derselben mit synthetischen Fasern mit in Wasser schwer löslichen oder unlöslichen Farbstoffen in Gegenwart spezifischer Hilfsmittel, unter anderem der Lactamreihe. Diese Hilfsmittel bewirken eine erhöhte Farbausbeute, insbesondere auf dem Cellulosematerial, und bei Verwendung von Mischgeweben egaleTon-in-Ton Färbungen.
Abstract:
A process of treating a ketoxime or aldoxime-containing amide mixture resulting from a Beckmann rearrangement of the corresponding ketoxime or aldoxime. The process involves hydrolysis of the mixture to remove the remaining ketoxime or aldoxime which are converted to the corresponding ketone or aldehyde and then separated off from the mixture. Any amino acid resulting from the hydrolysis can be reconverted to the corresponding amide by raising the temperature of the mixture.
Abstract:
The instant invention relates to a method for purifying lactams wherein the lactam to be purified is contacted in the fused state with inorganic adsorption agents.The said method comprises contacting the lactam to be purified in the fused state with an inorganic adsorbent, then separating the lactam from the adsorbent and regenerating said adsorbent if desired, wherein said adsorbent is impregnated with at least one impregnation compound selected from the group consisting of an acid and the alkali metal salts which are thermally stable and exert no action on the lactam at temperatures lower tha 250.degree.C.
Abstract:
Diene-lactam block polymers are produced from a metal salt of a lactam, a halogen-substituted isocyanate, a lithium-containing polymer and a lactam.
Abstract:
The invention relates to the hydrogenation of an unsaturated elastomer in the presence of a catalyst which is the reaction product of cobaltous salt of lactam or another amide or urea reduced by a trialkyl or triaryl aluminum or a dialkyl or diaryl aluminum hydride.