US4035397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyfluoro acid anthraquinone dyestuffs their preparation and their use
Assignee: Produits Chimiques Ugine Kuhlmann
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Filing: 1974-07-11
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Granted: 1977-07-12
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Expires: 1994-07-11
Abstract
Abstract Dyestuffs of the formula: <IMAGE> (I) in which R represents a hydroxy, amino, alkylamino or cyclo-alkylamino group, or a residue of the formula: <IMAGE> (II) n is equal to 0 or 1, X represents a hydrogen or halogen atom, a sulphonic group or an alkyl residue containing 1 to 4 carbon atoms, Y represents a hydrogen atom or a sulphonic group in position 5, 6, 7 or 8 at least one of the symbols X and Y representing a sulphonic group if n is equal to 0; process for the preparation of such dyestuffs; process for the coloration of natural or synthetic polyamide fibres with such dyestuffs and natural or synthetic polyamides dyed or printed with such dyestuffs.
Inventors
- 👤 Jacques Pierre Edmond Pechmeze
- 👤 Philippe Jean-Marie Touratier
- 👤 Louis Antoine Cabut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:56
CPC Classifications
C; C09; C09B; C09B1/00; C09B1/16; C09B1/20; C09B1/26; C09B1/32; C09B1/34; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/917; Y10S8/92; Y10S8/924
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
85 words
Dyestuffs of the formula: ##STR8## in which R represents a hydroxy amino, alkylamino or cycloalkylamino group, or a residue of the formula: ##STR9## n is equal to 0 or 1, X represents a hydrogen or halogen atom, a sulphonic group or an alkyl residue containing 1 to 4 carbon atoms, Y represents a hydrogen atom or a sulphonic group in position 5, 6, 7 or 8 at least one of the symbols X and Y representing a sulphonic group if n is equal to 0.
Claim 2
Dependent Claim
85 words
Dyestuffs of the formula: ##STR8## in which R represents a hydroxy amino, alkylamino or cycloalkylamino group, or a residue of the formula: ##STR9## n is equal to 0 or 1, X represents a hydrogen or halogen atom, a sulphonic group or an alkyl residue containing 1 to 4 carbon atoms, Y represents a hydrogen atom or a sulphonic group in position 5, 6, 7 or 8 at least one of the symbols X and Y representing a sulphonic group if n is equal to 0.
Claim 3
Dependent Claim
17 words
Dyestuffs according to claim 1 wherein R is an alkylamino group containing 1 to 4 carbon atoms.
Claim 4
Dependent Claim
11 words
Dyestuffs according to claim 1 wherein R is a cyclohexylamino group.
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) | 1980-07-11 | 1981-01-10 | 1981-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-11 | 1985-01-10 | 1985-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-11 | 1989-01-10 | 1989-07-12 | $7700.00 | Window Closed / Lapsed |