AT382405B - Use of N-substituted benzimidazoles for optical brightening - Google Patents

Use of N-substituted benzimidazoles for optical brightening

Info

Publication number
AT382405B
AT382405B AT0568877A AT568877A AT382405B AT 382405 B AT382405 B AT 382405B AT 0568877 A AT0568877 A AT 0568877A AT 568877 A AT568877 A AT 568877A AT 382405 B AT382405 B AT 382405B
Authority
AT
Austria
Prior art keywords
alkoxy
alkyl
conr6r7
carbonyl
carboxyl
Prior art date
Application number
AT0568877A
Other languages
German (de)
Other versions
ATA568877A (en
Original Assignee
Sandoz Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB32457/76A external-priority patent/GB1577127A/en
Application filed by Sandoz Ag filed Critical Sandoz Ag
Priority to AT0568877A priority Critical patent/AT382405B/en
Publication of ATA568877A publication Critical patent/ATA568877A/en
Application granted granted Critical
Publication of AT382405B publication Critical patent/AT382405B/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/60—Optical bleaching or brightening
    • D06L4/614—Optical bleaching or brightening in aqueous solvents

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Plural Heterocyclic Compounds (AREA)

Abstract

Use of N-substituted benzimidazoles of the formula Ia, where R1, R2, R3 and R4 are independently hydrogen, C1-4 alkyl, C1-4 alkoxy, halogen, cyano, carboxyl, (C1-4 alkoxy)carbonyl, -CONR6R7, -SO2NR6R7, -SO2R8, (C1-4 alkyl)carbonyloxy phenyl-, (C1-4 alkoxy)carbonyl-, cyano-, carboxyl- or CONR6R7-monosubstituted C1-4 alkoxy or R1 and R2 when adjacent to each other and/or R3 and R4 when adjacent to each other combine to form a fused-on benzene ring, R5 is phenyl or optionally hydroxyl-, cyano- , phenyl-, C2-4 alkenyl-, carboxyl-, (C1-4 alkoxy)carbonyl- or CONR6R7-monosubstituted C1-4 alkyl, R6 and R7 are independently hydrogen or C1-4 alkyl, R8 is C1-4 alkyl and X is O or S, subject to the proviso that at least one of R1 and R2 and not more than one of R3 and R4 represent cyano, carboxyl, (C1-4 alkoxy)carbonyl, -CONR6R7, -SO2NR6R7 or -SO2-R8, in the form of the free base, of an acid adduct or of the quaternary ammonium salt for optical brightening of substrates which are brightenable with cationic optical brighteners. Preference is given to using the monoprotonated and especially the monoquaternized compounds. <IMAGE>
AT0568877A 1976-08-04 1977-08-02 Use of N-substituted benzimidazoles for optical brightening AT382405B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT0568877A AT382405B (en) 1976-08-04 1977-08-02 Use of N-substituted benzimidazoles for optical brightening

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB32457/76A GB1577127A (en) 1976-08-04 1976-08-04 Benzotriazole derivatives and their use as optical brightening agents
GB798277 1977-02-25
AT0568877A AT382405B (en) 1976-08-04 1977-08-02 Use of N-substituted benzimidazoles for optical brightening

Publications (2)

Publication Number Publication Date
ATA568877A ATA568877A (en) 1986-07-15
AT382405B true AT382405B (en) 1987-02-25

Family

ID=27150450

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0568877A AT382405B (en) 1976-08-04 1977-08-02 Use of N-substituted benzimidazoles for optical brightening

Country Status (1)

Country Link
AT (1) AT382405B (en)

Also Published As

Publication number Publication date
ATA568877A (en) 1986-07-15

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee