Patent EP0042204A2 successfully refreshed from Google Patents.
EP0042204A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Reactive dyestuffs
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1981-04-02
•
Granted: —
•
Expires: 2001-04-02
Abstract
Abstract Cellulose reactive dyes which in the free acid form are of the formula: wherein A is where n is 1 or 2; where Y is H, Cl or SO 3 H; R is H or C 1-4 normal alkyl; R' and R" are each independently H, CH 3 or C 2 H 5 ; T is Cl, Br, F, SO 3 H or a quaternary ammonium group; and where Z is H, SO 3 N, or COOH; m is 1 or 2; and W is H, Cl, CH 3 or OCH 3 . These dyes are valuable for the colouration of cellulose textiles showing good strength and build up.
Inventors
- 👤 Herbert Francis Andrew
- 👤 Clive Hugh Barlow
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 21:51
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/02; C09B62/04; C09B62/043
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
95 words
Cellulose reactive dyes which in the free acid form are of the formula: wherein A is where n is 1 or 2; where Y is H, Cl or SO 3 H; R is H or C 1-4 normal alkyl; R' and R" are each independently H, CH 3 or C 2 H 5 ; T is Cl, Br, F, SO 3 H or a quaternary ammonium group; and D is where Z is H, SO 3 H, or COOH; m is 1 or 2; and W is H, Cl, CH 3 or OCH 3 .
Claim 2
Dependent Claim
95 words
Cellulose reactive dyes which in the free acid form are of the formula: wherein A is where n is 1 or 2; where Y is H, Cl or SO 3 H; R is H or C 1-4 normal alkyl; R' and R" are each independently H, CH 3 or C 2 H 5 ; T is Cl, Br, F, SO 3 H or a quaternary ammonium group; and D is where Z is H, SO 3 H, or COOH; m is 1 or 2; and W is H, Cl, CH 3 or OCH 3 .
Claim 3
Dependent Claim
12 words
Dyes as claimed in claim 1 in which A is 1,5- disulphonaphth-2-yl.
Claim 4
Dependent Claim
15 words
Dyes as claimed in claims 1 or 2 in which B is 1-hydroxy-3,5-disulpho- or 1-hydroxy-3-sulpho-2,6-naphthylene.
Claim 5
Dependent Claim
18 words
Dyes as claimed in any one of claims 1 to 3 in which T is F or Cl.
Claim 6
Dependent Claim
34 words
Dyes as claimed in any one of claims 1 to 4 in which R is H or CH3 and one of R' and R" is H or CH 3 and the other is H.
Claim 7
Dependent Claim
29 words
Dyes as claimed in any one of claims 1 to 6 in which Z is H or SO 3 H, m is 1 and W is H or methyl.
Claim 8
Dependent Claim
16 words
Dyes as claimed in claim 1 and herein particularly described in any one of the Examples.
Claim 9
Dependent Claim
62 words
A process for the manufacture of dyes as claimed in claim 1 in which T is Cl, Br or F which comprises reacting a diamine of the formula: with two moles of a triazinyl compound of the formula: where A, B, R, R', R", W, Z and m have the meanings given in claim 1 and T' is Cl, Br or F.
Claim 10
Dependent Claim
54 words
A process for the manufacture of dyes as claimed in claim 1 in which T is SO 3 H or a quaternary ammonium group which comprises reacting a dye of formula (1) in which T is Cl, Br or F with an alkali metal hydrogen sulphite or the appropriate tertiary amine or pyridine compound.
Claim 11
Dependent Claim
28 words
A process for the colouration of cellulose textile materials which comprises applying dyestuffs as claimed in claim 1 in conjunction with a treatment with an acid binding agent.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.