US5489330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copper phthalocyanine liquid finished preparation
Assignee: Bayer AG
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Filing: 1993-10-29
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Granted: 1996-02-06
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Expires: 2013-10-29
Abstract
Abstract The new aqueous finished preparations of copper phthalocyanine dyestuffs comprising a dyestuff of the formula ##STR1## where CuPc, A, R 1 , R 2 , x and y have the meaning given in the description, are storage-stable and are outstandingly suitable for dyeing and printing cellulose-containing materials.
Inventors
- 👤 Klaus Wunderlich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:20
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0071; C09B67/0072; C09B67/0073; C09B47/00; C09B47/04; C09B47/08; C09B47/24; C09B47/26
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
135 words
A stable concentrated aqueous dyestuff solution which comprises one or more copper phthalocyanine compounds which, in the form of the free acid, correspond to the formula ##STR12## wherein CuPc represents a copper phthalocyanine radical, A represents substituted or unsubstituted, straight-chain or branched C 2 -C 6 -alkylene, R 1 and R 2 independently of one another represent hydrogen, substituted or unsubstituted, straight-chain or branched C 1 -C 6 -alkyl or substituted or unsubstituted, straight-chain or branched C 1 -C 6 -hydroxyalkyl, with the proviso that at least one radical R 1 or R 2 represents substituted or unsubstituted, straight-chain or branched C 1 -C 6 -hydroxyalkyl, x represents 1 to 3.5, y represents 0.5 to 3, and the sum of x and y is 2.5 to 4, and has a pH of 8 to 13.
Claim 2
Dependent Claim
135 words
A stable concentrated aqueous dyestuff solution which comprises one or more copper phthalocyanine compounds which, in the form of the free acid, correspond to the formula ##STR12## wherein CuPc represents a copper phthalocyanine radical, A represents substituted or unsubstituted, straight-chain or branched C 2 -C 6 -alkylene, R 1 and R 2 independently of one another represent hydrogen, substituted or unsubstituted, straight-chain or branched C 1 -C 6 -alkyl or substituted or unsubstituted, straight-chain or branched C 1 -C 6 -hydroxyalkyl, with the proviso that at least one radical R 1 or R 2 represents substituted or unsubstituted, straight-chain or branched C 1 -C 6 -hydroxyalkyl, x represents 1 to 3.5, y represents 0.5 to 3, and the sum of x and y is 2.5 to 4, and has a pH of 8 to 13.
Claim 3
Dependent Claim
15 words
A dyestuff solution according to claim 1 which has a pH of 11 to 13.
Claim 4
Dependent Claim
48 words
A solution according to claim 1 wherein A represents ethylene or propylene, R 1 represents hydrogen, unsubstituted straight-chain or branched C 1 -C 3 -alkyl or straight-chain or branched C 1 -C 3 -alkyl which is substituted by hydroxyl and R 2 represents --CH 2 CH 2 OH.
Claim 5
Dependent Claim
19 words
A solution according to claim 1 wherein I comprises one or more compounds of the formula (II) ##STR13## .
Claim 6
Dependent Claim
14 words
A solution according to claim 1 which contains no organic additives which improve solubility.
Claim 7
Dependent Claim
20 words
A solution according to claim 1 in which the pH has been adjusted by addition of an alkali metal hydroxide.
Claim 8
Dependent Claim
16 words
A process for dyeing cellulose-containing material which composes applying thereto a solution according to claim 1.
Claim 9
Dependent Claim
14 words
The process of claim 7, in which the cellulose-containing material is paper or cellulose.
Claim 10
Dependent Claim
20 words
The process of claim 7, in which the cellulose-containing material is paper or cellulose which is dyed in the pulp.
Claim 11
Dependent Claim
20 words
The process of claim 7, in which the cellulose-containing material is paper or cellulose which is dyed on the surface.
Claim 12
Dependent Claim
31 words
In the printing of a carrier material by applying thereto an ink jet recording liquid, the improvement which comprises employing as the liquid an aqueous dyestuff solution according to claim 1.
Claim 13
Dependent Claim
44 words
Ink jet recording liquid which comprises a) 0.5-15% of an alkali metal salt or ammonium salt of a dyestuff of the formula (I) of claim 1, b) 0-30% of one or more water-soluble organic solvents and c) water and has a pH of 8.5-12.0.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-02-05 | 1999-08-07 | 2000-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-02-05 | 2003-08-07 | 2004-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-02-05 | 2007-08-07 | 2008-02-06 | $7700.00 | Window Closed / Lapsed |