Patent EP0241821A1 successfully refreshed from Google Patents.
EP0241821A1
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EP
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Water-soluble yellow monoazo dyestuff mixtures and their use for dyeing carbonamide and/or hydroxy groups containing materials
Assignee: CNA Holdings LLC
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Filing: 1987-04-03
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Granted: —
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Expires: 2007-04-03
Abstract
Abstract Mixtures of water-soluble, fiber-reactive, yellow dyestuffs which exhibit superior build-up and colour properties over those properties obtained with the individual components of the mixtures, the dyestuffs conforming to the general formula wherein R is each independently selected from alkyl of 1 to 4 carbon atoms and alkoxy of 1 to 4 carbon atoms and hydrogen, with the proviso that at least one of said R moieties is selected from alkyl of 1 to 4 carbon atoms in at least one of said both dyestuffs and that each of said both dyestuffs contains at least two R moieties selected from alkoxy of 1 to 4 carbon atoms, X is vinyl or is a group of the general formula -CH 2 -CH 2 -Z, in which Z is chlorine, bromine, sulfato, thiosulfato, phosphato or alkyl-amino with an alkyl of 1 to 4 carbon atoms, or dialkyl-amino with alkyls each having independently 1 to 4 carbon atoms, and M is hydrogen or an alkali metal.
Inventors
- 👤 Thomas S. Phillips
- 👤 Anthony J. C/O Hoechst Celanese Corp. Corso
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 02:32
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0033; C09B67/0046; C09B67/0051; C09B67/0052; C09B67/0054; C09B62/00; C09B62/44; C09B62/503; C09B62/507; C09B62/51; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/918
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
153 words
A water-soluble mixture of monoazo dyestuffs comprising a first and a second azo dyestuff conforming to the general formula (1) wherein R is each independently selected from alkyl of 1 to 4 carbon atoms and alkoxy of 1 to 4 carbon atoms and hydrogen, with the proviso that at least one of said R moieties is selected from alkyl of 1 to 4 carbon atoms in at least one of said both dyestuffs and that each of said both dyestuffs contains at least two R moieties selected from alkoxy of 1 to 4 carbon atoms, X is vinyl or is a group of the general formula -CH 2 -CH 2 -Z , in which Z is chlorine, bromine, sulfato, thiosulfato, phosphato or alkyl-amino with an alkyl of 1 to 4 carbon atoms, or dialkyl-amino with alkyls each having independently 1 to 4 carbon atoms, and M is hydrogen or preferably an alkali metal.
Claim 2
Dependent Claim
153 words
A water-soluble mixture of monoazo dyestuffs comprising a first and a second azo dyestuff conforming to the general formula (1) wherein R is each independently selected from alkyl of 1 to 4 carbon atoms and alkoxy of 1 to 4 carbon atoms and hydrogen, with the proviso that at least one of said R moieties is selected from alkyl of 1 to 4 carbon atoms in at least one of said both dyestuffs and that each of said both dyestuffs contains at least two R moieties selected from alkoxy of 1 to 4 carbon atoms, X is vinyl or is a group of the general formula -CH 2 -CH 2 -Z , in which Z is chlorine, bromine, sulfato, thiosulfato, phosphato or alkyl-amino with an alkyl of 1 to 4 carbon atoms, or dialkyl-amino with alkyls each having independently 1 to 4 carbon atoms, and M is hydrogen or preferably an alkali metal.
Claim 3
Dependent Claim
34 words
A dyestuff mixture according to Claim 1, wherein the moieties R are in 2,5- and 2',5'-positions, the group -S0 2 -X is in the 4'-position and the group M0 3 S- in the 4-position.
Claim 4
Dependent Claim
82 words
A dyestuff mixture according to Claim 1 or 2, wherein R is each independently selected from alkyl of 1 to 4 carbon atoms and alkoxy of 1 to 4 carbon atoms, with the proviso that at least one of said R moieties is selected from alkyl of 1 to 4 carbon atoms in at least one of said both dyestuffs and that each of said both dyestuffs contains at least two R moieties selected from alkoxy of 1 to 4 carbon atoms.
Claim 5
Dependent Claim
18 words
A dyestuff mixture according to any one or more of Claims 1 to 3, wherein Z is sulfato.
Claim 6
Dependent Claim
31 words
A dyestuff mixture according to Claim 1, wherein said first monoazodyestuff has the formula (A) and said second monoazodyestuff has the formula (B) wherein M is defined as in Claim 1.
Claim 7
Dependent Claim
31 words
A dyestuff mixture according to Claim 1, wherein said first monoazodyestuff has the formula (A) and said second monoazodyestuff has the formula (C) wherein M is defined as in Claim 1.
Claim 8
Dependent Claim
56 words
A dyestuff mixture according to Claim 1, wherein said first monoazodyestuff has the formula (B) said second monoazodyestuff has the formula (C) wherein M is defined as in Claim 1, and wherein Dyestuff (B) is present in an amount from 95 % to 80 % by weight, calculated of the total amount of (B) and (C).
Claim 9
Dependent Claim
33 words
A dyestuff mixture according to Claim 5, wherein said Dyestuff (A) is present in an amount from 80 % to 20 % by weight, calculated of the total amount of (A) and (B).
Claim 10
Dependent Claim
33 words
A dyestuff mixture according to Claim 5, wherein said Dyestuff (A) is present in an amount from 60 % to 40 % by weight, calculated of the total amount of (A) and (B).
Claim 11
Dependent Claim
33 words
A dyestuff mixture according to Claim 6, wherein said Dyestuff (A) is present in an amount from 80 % to 20 % by weight, calculated of the total amount of (A) and (C).
Claim 12
Dependent Claim
33 words
A dyestuff mixture according to Claim 6, wherein said Dyestuff (A) is present in an amount from 60 % to 40 % by weight, calculated of the total amount of (A) and (C).
Claim 13
Dependent Claim
33 words
A dyestuff mixture according to Claim 7, wherein said Dyestuff (B) is present in an amount from 90 % to 80 % by weight, calculated of the total amount of (B) and (C).
Claim 14
Dependent Claim
32 words
A dyestuff mixture according to Claim 7, wherein said Dyestuff (B) is present in an amount from 87 to 83 % by weight, calculated of the total amount of (B) and (C).
Claim 15
Dependent Claim
65 words
An aqueous liquid dyestuff composition comprising 25 to 50 weight % of a mixture of dyestuffs according to one or more of Claims 2 to 13, 0 to 10 % by weight of an inorganic electrolyte salt and 50 to 75 % by weight of water, said liquid dyestuff composition having a pH of about 2.5 to 4.5 and being substantially free of buffer substances.
Claim 16
Dependent Claim
49 words
An aqueous liquid dyestuff composition comprising 25 to 50 % by weight of a mixture of dyestuffs according to Claim 5, and 50 to 75 % by weight of water, said liquid dyestuff composition having a pH of about 2.5 to 4.5 and being substantially free of buffer substances.
Claim 17
Dependent Claim
49 words
An aqueous liquid dyestuff composition comprising 25 to 50 % by weight of a mixture of dyestuffs according to Claim 6, and 50 to 75 % by weight of water, said liquid dyestuff composition having a pH of about 2.5 to 4.5 and being substantially free of buffer substances.
Claim 18
Dependent Claim
49 words
An aqueous liquid dyestuff composition comprising 25 to 50 % by weight of a mixture of dyestuffs according to Claim 7, and 50 to 75 % by weight of water, said liquid dyestuff composition having a pH of about 2.5 to 4.5 and being substantially free of buffer substances.
References Cited (Backward Citations)
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