EP0194885A1
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Azo compound and aqueous ink composition comprising the same
Assignee: Taoka Chemical Co Ltd
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Filing: 1986-03-13
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Granted: —
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Expires: 2006-03-13
Abstract
Abstract An azo compound of the formulawherein M<sub>1</sub>. M<sub>2</sub> and M<sub>3</sub> are, the same or different, each a hydrogen atom, an alkali metal atom, an ammonium group or an organic ammonium group; R<sub>1</sub> and R<sub>2</sub> are, the same or different, each a C-c<sub>3</sub> alkyl group, a C<sub>1</sub>-C<sub>3</sub> alkoxy group, a halogen atom or a hydrogen atom; m is 1 or 2; and X and Y are, the same or different, each a C<sub>6</sub>-C<sub>18</sub> alkylamine, alkoxyalkylamine, arylamine, aralkylamine, alkanolamine or alkarylamine residue, which is useful as a magenta color dyestuff for an aqueous ink composition, particularly for ink jet recording.
Inventors
- 👤 Hideo Kawashita
- 👤 Mitsuhiro Ota
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 13:43
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/32; C09D11/328; C07; C07D; C07D251/00; C07D251/02; C07D251/12; C07D251/26; C07D251/40; C07D251/54; C07D251/70; C09B; C09B29/00; C09B29/24; C09B29/28; C09B29/30; C09B43/00; C09B43/12; C09B43/136; C09B43/16; Y; Y10; Y10S; Y10S534/00; Y10S534/02
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
93 words
An azo compound of the formula: wherein M1 , M2 and M3 are, the same or different, each a hydrogen atom, an alkali metal atom, an ammonium group or an organic ammonium group; R 1 and R 2 are, the same or different, each a C 1 -C 3 alkyl group, a C 1 -C 3 alkoxy group, a halogen atom or a hydrogen atom; m is 1 or 2; and X and Y are, the same or different, each a C 6 -C 18 alkylamine, alkoxyalkylamine, arylamine, aralkylamine, alkanolamine or alkarylamine residue.
Claim 2
Dependent Claim
93 words
An azo compound of the formula: wherein M1 , M2 and M3 are, the same or different, each a hydrogen atom, an alkali metal atom, an ammonium group or an organic ammonium group; R 1 and R 2 are, the same or different, each a C 1 -C 3 alkyl group, a C 1 -C 3 alkoxy group, a halogen atom or a hydrogen atom; m is 1 or 2; and X and Y are, the same or different, each a C 6 -C 18 alkylamine, alkoxyalkylamine, arylamine, aralkylamine, alkanolamine or alkarylamine residue.
Claim 3
Dependent Claim
12 words
The azo compound according to claim 1, wherein m is 1 (one).
Claim 4
Dependent Claim
26 words
The azo compound according to claim 2, wherein the residue -M 1 O 3 S is present at an ortho-position with respect to the azo group.
Claim 5
Dependent Claim
22 words
The azo compound according to claim 1, claim 2 or claim 3 wherein R 1 and R 2 are both hydrogen atoms.
Claim 6
Dependent Claim
23 words
The azo compound according to any one of the preceding claims, wherein M 1 , M 2 and M 3 are all sodium.
Claim 7
Dependent Claim
19 words
The azo compound according to any one of the preceding claims, wherein X and Y are both alkoxyalkylamine residues.
Claim 8
Dependent Claim
26 words
The azo compound according to any one of claims 1 to 5 wherein X is an alkoxyalkyl or alkoxyalkylamine residue and Y is an aralkylamine residue.
Claim 9
Dependent Claim
20 words
The azo compound according to claim 6 or claim 7 wherein the or an alkoxyalkylamine residue is a 2-ethylhexylamine residue.
Claim 10
Dependent Claim
22 words
The azo compound according to claim 7 or claim 8 wherein the aralkylamine residue is a benzylamine residue or a dibenzylamine residue.
Claim 11
Dependent Claim
20 words
The azo compound according to claim 7, claim 8 or claim 9 wherein the alkoxyalkylamino residue is a 2-ethylhexyloxypropylamino residue.
Claim 12
Dependent Claim
16 words
An aqueous ink composition comprising an azo compound according to any one of the preceding claims.
Claim 13
Dependent Claim
39 words
The aqueous ink composition according to claim 11, which comprises 0.5 to 20 parts by weight, preferably 1 to 15 parts by weight of the azo compound of the formula (I) per 100 parts by weight of the composition.
Claim 14
Dependent Claim
31 words
The aqueous ink composition according to claim 11 or claim 12, which comprises 10 to 80 parts by weight of the wetting agent per 100 parts by weight of the composition.
Claim 15
Dependent Claim
28 words
The aqueous ink composition according to claim 11, claim 12, or claim 13 wherein the wetting agent is at least one selected from polyhydric alcohols, cellosolves and carbitols.
Claim 16
Dependent Claim
22 words
The aqueous ink composition according to any one of claims 11 to 14 which is an ink composition for ink jet recording.
References Cited (Backward Citations)
DE2062163A1
Cited
FR2386589A1
Cited
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