Patent US4466805A successfully refreshed from Google Patents.
US4466805A
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Hairdyeing composition and method
Assignee: Merck Patent GmbH
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Filing: 1980-08-20
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Granted: 1984-08-21
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Expires: 2000-08-20
Abstract
Abstract Compounds of the formula R--C(R.sup.2)═C(R.sup.3)--C(R.sup.4)═C(R.sup.5)--R wherein R is --CHO, --CH(OR 6 ) 2 , 1,3-dioxolan-2-yl, 4-methyl-1,3-dioxolan-2-yl or 1,3-dioxan-2-yl; R 2 , R 3 , R 4 and R 5 independently are hydrogen, methyl or ethyl; and R 6 is C 1-8 alkyl are highly useful as cosmetic active ingredients, e.g., as hair dyes and skin tanning agents. Compositions of these compounds with other active ingredients such as dihydroxyacetone are also quite effective.
Inventors
- 👤 Reiner Walters
- 👤 Gernot Moschl
- 👤 Hans-Dieter Allardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:10
CPC Classifications
C; C07; C07C; C07C47/00; C07C47/20; C07C47/21; A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/33; A61K8/35; A61Q; A61Q19/00; A61Q19/04; A61Q5/00; A61Q5/06; A61Q5/065; C07C45/00; C07C45/61; C07C45/67; C07C45/68; C07C45/72; Y; Y10; Y10S; Y10S424/00; Y10S424/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
60 words
A hairdyeing composition comprising an amount, effective to dye hair, of at least one compound of formula II R.sup.7 --C(R.sup.2)═C(R.sup.3)--C(R.sup.4)═C(R.sup.5)--R.sup.7(II) wherein R 7 is --CH (OR 12 ) 2 ; R 12 is C 1-8 alkyl; and R 2 , R 3 , R 4 and R 5 independently are hydrogen, methyl or ethyl; and an adjuvant acceptable in cosmetics.
Claim 2
Dependent Claim
60 words
A hairdyeing composition comprising an amount, effective to dye hair, of at least one compound of formula II R.sup.7 --C(R.sup.2)═C(R.sup.3)--C(R.sup.4)═C(R.sup.5)--R.sup.7(II) wherein R 7 is --CH (OR 12 ) 2 ; R 12 is C 1-8 alkyl; and R 2 , R 3 , R 4 and R 5 independently are hydrogen, methyl or ethyl; and an adjuvant acceptable in cosmetics.
Claim 3
Dependent Claim
28 words
A composition of claim 1, wherein R 12 is methyl, ethyl, propyl or butyl; and R 2 , R 3 , R 4 and R 5 are hydrogen.
Claim 4
Dependent Claim
13 words
A composition of claim 1, wherein the compound of formula II is 1,1,6,6-tetraethoxy-2,4-hexadiene.
Claim 5
Dependent Claim
8 words
A composition of claim 1 further comprising dihydroxyacetone.
Claim 6
Dependent Claim
8 words
A composition of claim 2 further comprising dihydroxyacetone.
Claim 7
Dependent Claim
8 words
A composition of claim 3 further comprising dihydroxyacetone.
Claim 8
Dependent Claim
29 words
A method of drying human hair which comprises applying to the hair an amount of a cosmetic composition of claim 1, 2 or 3 effective for dyeing human hair.
Claim 9
Dependent Claim
26 words
A method of dyeing human hair which comprises applying to the hair an amount of a cosmetic composition of claim 4 effective for dyeing human hair.
Claim 10
Dependent Claim
26 words
A method of dyeing human hair which comprises applying to the hair an amount of a cosmetic composition of claim 5 effective for dyeing human hair.
Claim 11
Dependent Claim
26 words
A method of dyeing human hair which comprises applying to the hair an amount of a cosmetic composition of claim 6 effective for dyeing human hair.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-08-21 | 1988-02-20 | 1988-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-21 | 1992-02-20 | 1992-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-21 | 1996-02-20 | 1996-08-21 | $7700.00 | Window Closed / Lapsed |