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US3884625A Expired / Lapsed US ⏱️ 0.0 years remaining

Indophenols dyes for coloring keratin fibers

Assignee: L'Oréal SA
•
Filing: 1973-02-28
•
Granted: 1975-05-20
•
Expires: 1993-02-28
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Abstract

Abstract WHEREIN R1 and R3 each independently represent a member selected from the group consisting of hydrogen, halogen, lower alkyl and NHCOR wherein R is lower alkyl; R2 represents a member selected from the group consisting of ureido, -NHCOR wherein R is lower alkyl and -NHR8 wherein R8 represents a member selected from the group consisting of hydrogen, lower alkyl and carbamylmethyl, with the proviso that when R2 is -NHR8, R3 is not hydrogen; and R4, R5, R6 and R7 each independently represent a member selected from the group consisting of hydrogen, halogen, lower alkyl and lower alkoxy. The said indophenol is present in the composition in amounts ranging from 0.01 to 0.5 weight percent thereof. A composition for coloring keratin fibers comprises a solution of an indophenol in a solvent selected from the group consisting of water and an aqueous solution of a lower alkanol, said indophenol having the formula

Inventors

  • 👤 Gregoire Kalopissis
  • 👤 Andree Bugaut
  • 👤 Francoise Estradier

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 13:05
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/10; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61K8/413; Y; Y10; Y10S; Y10S8/00; Y10S8/907; Y10S8/908; Y10S8/909

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 35 words
A COMPOSITION FOR COLORING KERATIN FIBERS COMPRISING A SOLUTION OF AN INDOPHENOL IN A SOLVENT SELECTED FROM THE GROUP CONSISTING OF WATER AND AN AQUEOUS SOLUTION OF A LOWER ALKANOL, SAID INDOPHENOL HAVING THE FORMULA
Claim 2
Dependent Claim 35 words
A COMPOSITION FOR COLORING KERATIN FIBERS COMPRISING A SOLUTION OF AN INDOPHENOL IN A SOLVENT SELECTED FROM THE GROUP CONSISTING OF WATER AND AN AQUEOUS SOLUTION OF A LOWER ALKANOL, SAID INDOPHENOL HAVING THE FORMULA
Claim 3
Dependent Claim 15 words
The composition of claim 1 having a pH ranging between about 5 to about 11.
Claim 4
Dependent Claim 11 words
The composition of claim 2 having a pH ranging between 7-11.
Claim 5
Dependent Claim 121 words
The composition of claim 1 wherein the solvent is an aqueous solution of a lower alkanol and said composition also includes a film forming resin in amounts of about 1 to 3 weight percent based on the weight of said composition, said film forming resin being selected from the group consisting of polyvinylpyrrolidone having a molecular weight ranging from about 10,000 to 700,000; copolymer of vinylpyrrolidone and vinyl acetate wherein the ratio of VP to VA ranges between 30:70-70:30; terpolymer of 20% methyl methacrylate, 23% stearyl methacrylate and 57% dimethyl methacrylate; terpolymer of 80% vinyl acetate, 15% allyl stearate and 5% allyloxyacetic acid; and copolymer of 90% vinyl acetate and 10% crotonic acid having a molecular weight ranging from 45, 000-50,000.
Claim 6
Dependent Claim 19 words
The composition of claim 4 wherein the lower alkanol is selected from the group consisting of ethanol and isopropanol.
Claim 7
Dependent Claim 23 words
The composition of claim 4, wherein said lower alkanol is present in amounts of about 20 to 50 weight percent of said composition.
Claim 8
Dependent Claim 11 words
A composition according to claim 1 which also contains an indoaniline.
Claim 9
Dependent Claim 58 words
A method for dyeing human hair which comprises impregnating the hair with a dye composition according to claim 1 in amounts effective to dye the hair, permitting said composition to remain in contact with said hair for a period of time ranging from about 5 to about 30 minutes, rinsing said hair with water and drying said hair.
Claim 10
Dependent Claim 37 words
A method for temporary dyeing and setting human hair which comprises impregnating wet hair with a composition according to claim 4 in amounts effective to dye and set said hair and rolling up and drying the hair.

References Cited (Backward Citations)

US1102028A Cited
US3516778A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-05-19 1978-11-18 1979-05-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-05-19 1982-11-18 1983-05-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-05-19 1986-11-18 1987-05-20 $7700.00 Window Closed / Lapsed

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