US4904274A
Expired / Lapsed
US
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Coloring hair with aminoalkyl-or aminohydroxyalkyl-catechols
Assignee: P&G Hair Care Holding Inc
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Filing: 1988-05-12
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Granted: 1990-02-27
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Expires: 2008-05-12
Abstract
Abstract A process for coloring hair in which a functional metal ion and aminoalkyl or aminohydroxyalkyl catechols are used in combination or applied sequentially to dye the hair rapidly.
Inventors
- 👤 Thomas M. Schultz
- 👤 Leszek J. Wolfram
- 👤 Keith C. Brown
- 👤 Giuseppe Prota
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:27
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61K8/19; A61K8/20; A61K8/22; A61Q; A61Q5/00; A61Q5/06; A61Q5/065
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
182 words
A process for coloring hair which comprises treating said hair with a metal salt capable of assisting the conversion of a catechol compound to a melanin-like material and an aminoalkyl- or aminohydroxyalkyl-catechol having the formula: ##STR3## wherein: (a) R 1 and R 2 are radicals selected from the group consisting of H, OH, alkyl, alkoxy, alkoxyalkyl, NO 2 , --COOH and carboalkoxy; (b) R 3 is selected from the group consisting of R 1 and NH 2 ; (c) R 4 is selected from the group consisting of H, --CH 2 NHR 5 , --CHOHNHR 5 , --CH(alkyl)NHR 5 , --CH(NHR 2 ) NHR 5 , CH(NO 2 )NHR 5 , --CH(alkoxy)NHR 5 , CH(NHR 2 )NHR 5 , --CH(alkoxy)NHR 5 --CH(carboxy)NHR 5 , --CH(carboalkoxy)NHR 5 ), --CH(aryl)NHR 5 --CH(aryloxy)NHR 5 , or --CH(halogen)NHR 5 ; wherein R 5 is selected from H, alkyl or aryl, and wherein (d) at least one of R 1 , R 2 , R 3 or R 4 is an amino group bonded to a ring carbon atom of said formula through an alkylene bridging group.
Claim 2
Dependent Claim
182 words
A process for coloring hair which comprises treating said hair with a metal salt capable of assisting the conversion of a catechol compound to a melanin-like material and an aminoalkyl- or aminohydroxyalkyl-catechol having the formula: ##STR3## wherein: (a) R 1 and R 2 are radicals selected from the group consisting of H, OH, alkyl, alkoxy, alkoxyalkyl, NO 2 , --COOH and carboalkoxy; (b) R 3 is selected from the group consisting of R 1 and NH 2 ; (c) R 4 is selected from the group consisting of H, --CH 2 NHR 5 , --CHOHNHR 5 , --CH(alkyl)NHR 5 , --CH(NHR 2 ) NHR 5 , CH(NO 2 )NHR 5 , --CH(alkoxy)NHR 5 , CH(NHR 2 )NHR 5 , --CH(alkoxy)NHR 5 --CH(carboxy)NHR 5 , --CH(carboalkoxy)NHR 5 ), --CH(aryl)NHR 5 --CH(aryloxy)NHR 5 , or --CH(halogen)NHR 5 ; wherein R 5 is selected from H, alkyl or aryl, and wherein (d) at least one of R 1 , R 2 , R 3 or R 4 is an amino group bonded to a ring carbon atom of said formula through an alkylene bridging group.
Claim 3
Dependent Claim
18 words
The process according to claim 1 wherein said metal salt and said aminoalkyl- or aminohydroxyalkyl-catechol are applied concurrently.
Claim 4
Dependent Claim
18 words
The process according to claim 1 wherein said metal salt and said aminoalkyl- or aminohydroxyalkyl-catechol are applied sequentially.
Claim 5
Dependent Claim
37 words
The process according to claim 3 in which said metal salt is first applied to the hair to form a metal ion deposit on the hair which is followed by an application of the aminoalkyl- or aminohydroxyalkyl-catechol.
Claim 6
Dependent Claim
19 words
The process according to claim 4 wherein said composition containing said aminoalkyl- or aminohydroxyalkyl-catechol also contains a metal salt.
Claim 7
Dependent Claim
18 words
The process according to claim 4 wherein said composition containing said aminoalkyl- or aminohydroxyalkyl-catechol also contains an oxidant.
Claim 8
Dependent Claim
27 words
The process according to claim 6 wherein said oxidant is selected from the group consisting of a peroxide, an iodate, a persulfate, a periodate and combination thereof.
Claim 9
Dependent Claim
30 words
The process according to claim 4 including the step of post-treating hair colored in accordance therewith with an aqueous composition of hydrogen peroxide for sufficient time to lighten the color.
Claim 10
Dependent Claim
30 words
The process according to claim 7 including the step of post-treating hair colored in accordance therewith with an aqueous composition of hydrogen peroxide for sufficient time to lighten the color.
Claim 11
Dependent Claim
164 words
The process according to claim 4 wherein said aminoalkyl- or aminohydroxyalkyl-catechol is of the formula: ##STR4## wherein: (a) R 1 and R 2 are radicals selected from the group consisting of H, OH, alkyl, alkoxy, alkoxyalkyl, NO 2 , COOH and carbalkoxy; (b) R 3 is selected from the group consisting of R 1 and NH 2 ; (c) R 4 is selected from the group consisting of H,--CH 2 NHR 5 , --CHOHNHR 5 , --CH(alkyl)NHR 5 , --CH(NHR 2 )NHR 5 , --CH(NO 2 )NHR 5 , --CH(alkoxy)NHR 5 , --CH(NHR 2 )NHR 5 , --CH(NO 2 )NHR 5 , --CH(alkoxy)NHR 5 --CH(carboxy) NHR 5 , --CH(carboalkoxy)NHR 5 ), --CH(aryl)NHR 5 --CH(aryloxy)NHR 5 , or --CH(halogen)NHR 5 ; wherein R 5 is selected from H, alkyl or aryl, and wherein (d) at least one of R 1 , R 2 , R 3 or R 4 amino group bonded to a ring carbon atom of formula I through an alkylene bridging group.
Claim 12
Dependent Claim
72 words
A process according to claim 4 wherein said metal salt is present in said first composition in the concentration of from about 0.001% to about 2% by weight based on the total weight of said first composition and said aminoalkyl- or aminohydroxyalkyl-catechol is present in said second composition in the concentration in the range of from about 0.05% to about 2% by weight based on the total weight of said second composition.
Claim 13
Dependent Claim
38 words
The process according to claim 11 wherein said second composition also contains an oxidant at a concentration in the range of from about 0.05% to about 3% by weight based on the total weight of said second composition.
Claim 14
Dependent Claim
26 words
The process according to claim 11 wherein said aminoalkyl- or aminohydroxyalkyl-catechol is selected from the group consisting of: 3-(3,4-dihydroxyphenylal-anine), epinephrine, 3,4-dihydroxyphenylethylamine, 2-hydroxy-(3,4-dihydroxyphenyl)-ethylamine, 3,4-hydroxybenzyl-amine, and mixtures thereof.
Claim 15
Dependent Claim
25 words
The process of claim 12 wherein said aminoalkyl- or aminohydroxyalkyl-catechol is selected from the group consisting of: 3-(3,4-dihydroxyphenylalanine), epinephrine, 3,4-dihydroxyphenylethylamine, 2-hydroxy-3,4-dihydroxyphenyl)-ethylamine, 3,4-hydroxybenzyl-amine, and mixtures thereof.
Claim 16
Dependent Claim
28 words
The process of claim 10 wherein the metallic moiety in the metal salt is at least one of copper, titanium, zinc, iron, nickel, cobalt, lead, silver and manganese.
Claim 17
Dependent Claim
61 words
A process for dyeing human hair comprising the step of contacting said hair with at least one metal salt capable of assisting the conversion of a catechol compound to a melanine-like material and with at least one compound of the formula ##STR5## wherein R 1 is H or OH; R 2 is H or alkyl; and n is 0 or 1.
Claim 18
Dependent Claim
61 words
A process for dyeing human hair comprising the step of contacting said hair with at least one metal salt capable of assisting the conversion of a catechol compound to a melanine-like material and with at least one compound of the formula ##STR5## wherein R 1 is H or OH; R 2 is H or alkyl; and n is 0 or 1.
References Cited (Backward Citations)
JPH0372836A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-26 | 1993-08-28 | 1994-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-26 | 1997-08-28 | 1998-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-26 | 2001-08-28 | 2002-02-27 | $7700.00 | Window Closed / Lapsed |