IN WHICH R AND R1 EACH REPRESENT THE SAME OR DIFFERENT LOWER ALKYL RADICALS, PREFERABLY METHYL OR ETHYL, R2 REPRESENTS A LOWER ALKYL RADICAL WHICH MAY BE SUBSTITUTED BY A NON-IONIC AND NON-CHROMOPHORIC SUBSTITUENT SUCH AS FOR EXAMPLE A LOWER ALKOXYGROUP, N REPRESENTS A WHOLE NUMBER GREATER THAN 1, PREFERABLY 2 OR 3, AND AO REPRESENTS A MONOVALENT ANION.
IN WHICH ONE X REPRESENTS A HYDROGEN ATOM AND THE OTHER A
-N(-R1)-R2
RADICAL WHEREIN R1 AND R2 EACH REPRESENT HYDROGEN OR AN ALKYL, CYCLOALKYL, ARYL OR ARALKYL GROUP, BUT NOT SIMULATANEOUSLY AN ARYL GROUP, OR R1 AND R2 TOGETHER WITH THE NITROGEN TO WHICH THEY ARE LINKED FORM A HETEROCYCLIC NUCLEUS. THE PREPARATION OF SUCH DYESTUFFS AND THEIR USE IN THE COLOURATION OF FIBRES BASED ON POLYAMIDES, POLYURETHANES, POLYESTERS, CELLULOSE ACETATE OR CELLULOSE TRIACETATE.
IN WHICH THE ALKYL GROUPS IN THE 1- AND 2-POSITIONS ARE THE SAME OR DIFFERENT AND CONTAIN NO MORE THAN 4 CARBON ATOMS, WHEREIN R REPRESENTS AN OH OR SO3H RADICAL, AND THE NUCLEUS A IS UNSUBSTITUTED OR SUBSTITUTED BY HALOGEN ATOMS OR NITRO GROUPS, MAY BE USED EFFECTIVELY TO PRODUCE 1,2-DIALKYL-3-INDAZOLONE-IMONIUM SALTS WHICH ARE USEFUL AS INDAZOLIUM DYESTUFF INTERMEDIATES.
摘要:
IN WHICH Hal represents a halogen, R represents an alkyl group containing 1 to 5 carbon atoms either unsubstituted or substituted by a non-ionic and non-chromophoric -chromophoric group, each of the substituents R1, R2 or R3, which are the same or different, representing a hydrogen or halogen atom, or an alkyl group comprising from 1 to 3 carbon atoms, or an aryl group; processes for their preparation and their use as fluorencent brightening agents for polyester fibres.
摘要:
THE PRESENT INVENTION RELATES TO CATIONIC DYESUFF DERIVED FROM NAPHTHOYLENE-BENZIMIDAZOLIUM COMPOUNDS, TO THE PREPARATION OF THE DYESTUFFS, TO THEIR USE IN THE COLORATION OF POLYMERS OR COPOLYMERS OF ACRYLONITRILE WHICH THEY DYE IN FAST SHADES, AND TO THE COLORED POLYMERS OR COPOLYMERS.