Patent US4648993A successfully refreshed from Google Patents.
US4648993A
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Cationic phthalocyanine dyes
Assignee: BASF SE
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Filing: 1985-07-08
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Granted: 1987-03-10
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Expires: 2005-07-08
Abstract
Abstract A compound useful for dyeing acid-modified fibers, having the formula ##STR1## where R 5 is hydrogen, methyl or ethyl; R 2 and R 3 are each methyl, ethyl, β-hydroxyethyl, β-hydroxypropyl or benzyl; A - is an anion; m is 2 or 3 and n is 0.1 to 1 based on statistical averages.
Inventors
- 👤 Horst Colberg
- 👤 Udo Mayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:46
CPC Classifications
C; C09; C09B; C09B47/00; C09B47/04; C09B47/32
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
52 words
A compound useful for dyeing acid-modified fibers, having the formula ##STR20## where R 5 is hydrogen, methyl or ethyl; R 2 and R 3 are each methyl, ethyl, β-hydroxyethyl, β-hydroxypropyl or benzyl; A - is an anion, m is 2 or 3 and n is 0.1 to 1 based on statistical averages.
Claim 2
Dependent Claim
52 words
A compound useful for dyeing acid-modified fibers, having the formula ##STR20## where R 5 is hydrogen, methyl or ethyl; R 2 and R 3 are each methyl, ethyl, β-hydroxyethyl, β-hydroxypropyl or benzyl; A - is an anion, m is 2 or 3 and n is 0.1 to 1 based on statistical averages.
Claim 3
Dependent Claim
11 words
The compound according to claim 1, wherein R 5 is methyl.
Claim 4
Dependent Claim
53 words
The compound according to claim 1, wherein A - is an anion selected from the group consisting of chloride, bromide, hydrogen sulfate, sulfate, nitrate, phosphate, hydrogen phosphate, dihydrogen phosphate, carbonate, bicarbonate, tetrachlorozincate, aminosulfonate, methylsulfonate, methylsulfate, ethylsulfate, formate, acetate, hydroxyacetate, aminoacetate, methoxyacetate, propionate, lactate, maleate, malonate, citrate, benzoate, phthalate, benzenesulfonate, toluenesulfonate, oleate and dodecylbenzenesulfonate.
Claim 5
Dependent Claim
9 words
The compound according to claim 1, which is ##STR21##
Claim 6
Dependent Claim
9 words
The compound according to claim 1, which is ##STR22##
Claim 7
Dependent Claim
9 words
The compound according to claim 1, which is ##STR23##
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-03-09 | 1990-09-08 | 1991-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-09 | 1994-09-08 | 1995-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-09 | 1998-09-08 | 1999-03-10 | $7700.00 | Window Closed / Lapsed |