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US 7,097,702 B2Granted
Acidic mono azo dyestuffs
AssigneeClariant Finance (BVI) Limited
InventorLudwig Hasemann
Life of this patent
Estimating the term…
Abstract
Disclosed are novel dyestuff for printing recording materials, especially textile fiber materials, paper and papery substrates and plastic films and plastic transparencies by the inkjet printing process of the formula (I) wherein all substituents are defined in the claims.
Claims17
A dyestuff of formula (I)
- wherein
- R1 is H;
- C1-4alkyl;
- substituted C1-4alkyl;
- phenyl or substituted phenyl,
- R2 is H;
- C1-4alkyl;
- substituted C1-4alkyl;
- C1-4alkoxy;
- —COOH;
- —COOCH3;
- —CF3;
- —SO3H or —CN,
- R3 is H;
- C1-4alkyl;
- substituted C1-4alkyl;
- C1-4alkoxy;
- —SO3H;
- —CN;
- acetylamino;
- —OH;
- —CF3 or —SO2R5,
- wherein
- R5 is unsubstituted C1-4alkyl or substituted C1-4alkyl,
- R4 is H;
- unsubstituted C1-4alkyl or substituted C1-4alkyl,
- A is a radical of formula
- wherein
- B is C1-4alkylene,
- X is —SO3H or —SO2R5 wherein
- R5 has the same meanings as defined above,
- or A is a radical of formula —SO2R6,
- wherein
- R6 is unsubstituted C1-4alkyl;
- substituted C1-4alkyl,
- m is 0 or 1.
33 more elements
Dyestuff having the formula (Ia)
- wherein
- R1 is H;
- —CH3;
- —CH2CH3;
- substituted C2-alkyl;
- phenyl;
- monosubstituted phenyl or disubstituted phenyl,
- R2 is H;
- —OCH3;
- —COOH or —COOCH3,
- R3 is H, —SO3H;
- —CN;
- —CF3;
- —CH3;
- —OCH3 or acetylamino,
- m is 0 or 1, and
- n is 1, 2 or 3.
14 more elements
Dyestuff having the formula (Ib)
- wherein
- R1 is H;
- —CH3;
- —CH2CH3;
- substituted C2-alkyl;
- phenyl;
- monosubstituted phenyl or disubstituted phenyl,
- R2 is H;
- —OCH3;
- —COOH or —COOCH3,
- R3 is H;
- —SO3H;
- CN;
- —CF3;
- —CH3 or —OCH3,
- n is 1, 2 or 3
- m is 0 or 1.
14 more elements
Dyestuff having the formula (Ic)
- wherein
- R1 is —CH3;
- —CH2CH3;
- substituted C2-alkyl;
- phenyl;
- monosubstituted phenyl or disubstituted phenyl,
- R3 is H;
- —SO3H;
- —CN;
- —CF3;
- —CH3 or —OCH3,
- R6 is unsubstituted C1-4alkyl;
- unsubstituted phenyl;
- monosubstituted phenyl or disubstituted phenyl,
- m is 0 or 1.
12 more elements
A process for preparing a dyestuff comprising the steps of reacting a compound of formula (VII)
- with a compound of formula (VIIIa)
- in H2O/NaOH to form the compound of formula (IX);
- and
- reacting the compound of formula (IX)
- with Na2SO3 or NaSO2R5 in an aqueous media to obtain a compound according to formula (I′)
- wherein
- R1 is H;
- C1-4alkyl;
- substituted C1-4alkyl;
- phenyl or substituted phenyl,
- R2 is H;
- C1-4alkyl;
- substituted C1-4alkyl;
- C1-4alkoxy;
- —COOH;
- —COOCH3;
- —CF3;
- —SO3H or —CN,
- R3 is H;
- C1-4alkyl;
- substituted C1-4alkyl;
- C1-4alkoxy;
- —SO3H;
- —CN;
- acetylamino;
- —OH;
- —CF3 or —SO2R6,
- wherein
- R5 is unsubstituted C1-4alkyl or substituted C1-4alkyl,
- R4 is H;
- unsubstituted C1-4alkyl or substituted C1-4alkyl,
- A is a radical of formula
- wherein
- B is unsubstituted phenylene;
- substituted phenylene or C1-4alkylene,
- X is —SO3H or —SO2R6 wherein
- R5 has the same meanings as defined above,
- or A is a radical of formula —SO2R6,
- wherein
- R6 is unsubstituted alkyl;
- substituted C1-4alkyl;
- unsubstituted phenyl or substituted phenyl,
- m is 0 or 1.
40 more elements
Dyestuff having the formula (Ic)
- wherein
- R1 is H;
- —CH3;
- —CH2CH3;
- substituted C2-alkyl;
- phenyl;
- monosubstituted phenyl or disubstituted phenyl,
- R3 is H;
- —SO3H;
- —CN;
- —CF3;
- —CH3 or —OCH3,
- R6 is unsubstituted C1-4alkyl,
- m is 0 or 1.
11 more elements
Dependencies are inferred from the claim text.