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US4145340A Expired / Lapsed US ⏱️ 0.0 years remaining

Water-soluble reactive monoazo dye containing a nonylphenoxy, chlorotriazine group

Assignee: Imperial Chemical Industries Ltd
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Filing: 1977-02-02
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Granted: 1979-03-20
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Expires: 1997-02-02
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Abstract

Abstract A water-soluble azo dye having the general formula: ##STR1## wherein A represents the residue of a diazo component of the benzene or naphthalene series; E represents the residue of a coupling component of the arylamine, naphthol, phenol, 5-pyrazolone, 5-aminopyrazole or acylacetarylamide series; X represents ═N--, ═C--Cl or ═C--CN; Y represents chlorine or bromine, Q 1 represents --O--, --S-- or --NR 4 -- in which R 4 represents hydrogen or lower alkyl; Q 2 represents a direct link, --O--, --S--, --CO--, --SO 2 --, --SO 2 NH--, --NHSO 2 --, --CONH--, --NHCO--, --COO--, --OCO--, --OSO 2 -- or --NR 5 -- in which R 5 represents hydrogen or lower alkyl; R 1 represents an arylene radical; R 2 represents an optionally substituted alkyl, cycloalkyl, aralkyl or aryl radical such that R 1 and R 2 together contain from 14 to 18 carbon atoms; R 3 represents hydrogen or lower alkyl and n is a whole number having a value from 1 to 3. These dyes are useful for coloring cellulosic textile materials as well as textile materials based on natural or synthetic nitrogenous fibers such as wool, silk and nylon.

Inventors

  • 👤 Denis R. A. Ridyard

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 16:03
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/02; C09B62/022; C09B62/026; C09B62/028

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 12 words
A water-soluble azo dye having the formula ##STR8## the sodium salt thereof.
Claim 2
Dependent Claim 12 words
A water-soluble azo dye having the formula ##STR8## the sodium salt thereof.

References Cited (Backward Citations)

US2795576A Cited
US2891941A Cited
US2979498A Cited
US2964520A Cited
US3135731A Cited
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US3663526A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1982-03-19 1982-09-18 1983-03-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1986-03-19 1986-09-18 1987-03-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1990-03-19 1990-09-18 1991-03-20 $7700.00 Window Closed / Lapsed

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