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Patent US4112229A successfully refreshed from Google Patents.
US4112229A
Expired / Lapsed
US
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Diphenylamines for dyeing keratinous fibers
Assignee: L'Oréal SA
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Filing: 1977-05-18
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Granted: 1978-09-05
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Expires: 1997-05-18
Abstract
Abstract Diphenylamines of the formula <IMAGE> wherein R1 and R2 each independently represent hydrogen, halogen or lower alkyl containing 1-4 carbon atoms with at least one of R1 and R2 being other than hydrogen; R3, R4, R5, R6, and R7 each independently represent hydrogen or lower alkyl optionally substituted with hydroxy, carbamyl, piperidinyl or acylamino; R3 and R6 or R4 and R7 also optionally forming together with the carbon and nitrogen atoms to which they are attached, a dihydrooxazine or pyrroline heterocycle; and Z represents amino, acylamino or hydroxy; and the acid salts of said diphenylamines. These diphenylamines are usefully employed in cosmetic compositions for the hair including hair dye compositions and hair setting lotion compositions.
Inventors
- 👤 Gregoire Kalopissis
- 👤 Andree Bugaut
- 👤 Francoise Estradier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:39
CPC Classifications
C; C07; C07C; C07C275/00; C07C275/28; C07C275/40; A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61K8/413; A61Q; A61Q5/00; A61Q5/10; C09; C09B; C09B53/00; C09B53/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
71 words
A diphenylamine of the formula ##STR32## wherein R 1 is selected from the group consisting of methyl and chlorine, R 2 is selected from the group consisting of hydrogen and methyl, R 3 is selected from the group consisting of hydrogen and methyl, R 5 is hydrogen, R 6 is selected from the group consisting of hydrogen and methyl and Z is selected from the group consisting of amino and hydroxy.
Claim 2
Dependent Claim
71 words
A diphenylamine of the formula ##STR32## wherein R 1 is selected from the group consisting of methyl and chlorine, R 2 is selected from the group consisting of hydrogen and methyl, R 3 is selected from the group consisting of hydrogen and methyl, R 5 is hydrogen, R 6 is selected from the group consisting of hydrogen and methyl and Z is selected from the group consisting of amino and hydroxy.
Claim 3
Dependent Claim
59 words
A diphenylamine of the formula ##STR33## wherein R 1 is selected from the group consisting of methyl and chlorine, R 2 is selected from the group consisting of hydrogen and methyl, R 3 is selected from the group consisting of hydrogen and methyl, R 5 is hydrogen and Z is selected from the group consisting of amino and hydroxy.
Claim 4
Dependent Claim
59 words
A diphenylamine of the formula ##STR33## wherein R 1 is selected from the group consisting of methyl and chlorine, R 2 is selected from the group consisting of hydrogen and methyl, R 3 is selected from the group consisting of hydrogen and methyl, R 5 is hydrogen and Z is selected from the group consisting of amino and hydroxy.
Claim 5
Dependent Claim
9 words
The diphenylamine of claim 2 wherein Z is amino.
Claim 6
Dependent Claim
9 words
The diphenylamine of claim 2 wherein Z is hydroxy.
Claim 7
Dependent Claim
10 words
The diphenylamine of claim 2 which is N-[(6'-amino-1'-oxa-4'-aza 1',2',3',4'-tetrahydro)7'-naphthyl]-4-amino-2-methyl phenol.
Claim 8
Dependent Claim
9 words
The diphenylamine of claim 2 which is N-[(6'-hydroxy-1'-oxa-4'-aza-1',2',3',4'-tetrahydro)7'-naphthyl]-4-amino-2-methyl phenol.
References Cited (Backward Citations)
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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) | 1981-09-04 | 1982-03-06 | 1982-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-04 | 1986-03-06 | 1986-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-04 | 1990-03-06 | 1990-09-05 | $7700.00 | Window Closed / Lapsed |