US5034015A — Process for dyeing keratin fibres with a monohydr…

Claim 1

Independent Claim 331 words

A process for dyeing keratin fibers comprising applying to said fibers at least one composition (A) comprising, in a medium suitable for dyeing said fibers, at least one indole colorant having the formula ##STR3## wherein R 1 represents hydrogen or C 1 -C 4 alkyl; R 2 and R 3 , each independently, represent hydrogen, C 1 -C 4 lower alkyl, carboxyl or C 1 -C 4 alkoxycarbonyl; the OH radical occupying position 4, 5, 6 or 7, with the proviso that when said OH radical occupies position 5, at least one of R 1 , R 2 or R 3 is other than hydrogen, a salt of said indole or a precursor of said indole, said indole being present in an amount ranging from 0.01 to 5 percent by weight based on the total weight of said composition, and (a) a source of iodide ions present in an amount ranging from 0.007 to 4 percent by weight expressed as I - ions based on the total weight of said composition (A), or (b) a solution of hydrogen peroxide at a concentration of 1-40 volumes having a pH ranging from 2 to 12 when said medium suitable for dyeing said fibers is water or a water-organic solvent mixture, said composition (A) being applied to said keratin fibers either prior to or subsequent to the application to said keratin fibers of a composition (B) comprising, in a medium suitable for dyeing said fibers (i) a solution of hydrogen peroxide at a concentration of 1-40 volumes having a pH ranging from 2-12 when said medium suitable for dyeing said fibers is water or a water-organic solvent mixture, when said composition (A) contains said iodide ions, or (ii) a source of iodide ions present in an amount ranging from 0.007 to 4 percent by weight, expressed as I - ions, based on the total weight of said composition (B) at a pH ranging from 2 to 11, when said composition (A) contains hydrogen peroxide.

Claim 2

Dependent Claim 331 words

A process for dyeing keratin fibers comprising applying to said fibers at least one composition (A) comprising, in a medium suitable for dyeing said fibers, at least one indole colorant having the formula ##STR3## wherein R 1 represents hydrogen or C 1 -C 4 alkyl; R 2 and R 3 , each independently, represent hydrogen, C 1 -C 4 lower alkyl, carboxyl or C 1 -C 4 alkoxycarbonyl; the OH radical occupying position 4, 5, 6 or 7, with the proviso that when said OH radical occupies position 5, at least one of R 1 , R 2 or R 3 is other than hydrogen, a salt of said indole or a precursor of said indole, said indole being present in an amount ranging from 0.01 to 5 percent by weight based on the total weight of said composition, and (a) a source of iodide ions present in an amount ranging from 0.007 to 4 percent by weight expressed as I - ions based on the total weight of said composition (A), or (b) a solution of hydrogen peroxide at a concentration of 1-40 volumes having a pH ranging from 2 to 12 when said medium suitable for dyeing said fibers is water or a water-organic solvent mixture, said composition (A) being applied to said keratin fibers either prior to or subsequent to the application to said keratin fibers of a composition (B) comprising, in a medium suitable for dyeing said fibers (i) a solution of hydrogen peroxide at a concentration of 1-40 volumes having a pH ranging from 2-12 when said medium suitable for dyeing said fibers is water or a water-organic solvent mixture, when said composition (A) contains said iodide ions, or (ii) a source of iodide ions present in an amount ranging from 0.007 to 4 percent by weight, expressed as I - ions, based on the total weight of said composition (B) at a pH ranging from 2 to 11, when said composition (A) contains hydrogen peroxide.

Claim 3

Dependent Claim 31 words

The process of claim 1 where in the precursor of said indole the OH group is protected in the OZ form wherein Z is a C 2 -C 5 acyl group.

Claim 4

Dependent Claim 11 words

The process of claim 2 wherein Z is an acetyl group.

Claim 5

Dependent Claim 39 words

The process of claim 1 wherein said indole colorant is selected from the group consisting of 6-hydroxyindole, 6-hydroxy-1-methylindole, 6-hydroxymethoxy-3-carbonylindole, 6-hydroxy-1-methyl-3-methoxycarbonylindole, 6-acetoxy-1-methyl-3-methoxycarbonylindole, 6-acetoxy-1-methyl-2,3-dimethoxycarbonylindole, 6-acetoxy-1,2-dimethylindole, 6-hydroxy-1,2-dimethylindole, 6-hydroxy-2-methylindole, 6-hydroxy-2-carboxyindole, 6-hydroxy-2,3-dimethylindole, 6-hydroxy-3-carboxyindole, 6-hydroxy-3-ethoxycarbonylindole, 6-hydroxy-2-ethoxycarbonylindole, 6-acetoxyindole, 6-hydroxy-3-methylindole, 7-hydroxyindole, 4-hydroxyindole, 5-hydroxy-3-methylindole, 7-hydroxy-3-methylindole, 5-hydroxy-2-carboxyindole and 5-hydroxy-2-ethoxycarbonylindole.

Claim 6

Dependent Claim 25 words

The process of claim 1 wherein said indole colorant is selected from the group consisting of 4-hydroxyindole, 6-hydroxyindole, 7-hydroxyindole, 6-hydroxy-1-methylindole, 5-hydroxy-3-methylindole, 5-hydroxy-2-carboxyindole, 7-hydroxy-3-methylindole and 6-hydroxy-2,3-dimethylindole.

Claim 7

Dependent Claim 27 words

The process of claim 1 wherein said composition (A) contains said indole colorant and said source of iodide ions and said composition (B) contains said hydrogen peroxide.

Claim 8

Dependent Claim 17 words

The process of claim 1 wherein said composition (B) has a pH ranging from 2 to 9.

Claim 9

Dependent Claim 24 words

The process of claim 1 wherein said source of iodide ions is an alkali metal iodide, an alkaline earth metal iodide or ammonium iodide.

Claim 10

Dependent Claim 25 words

The process of claim 1 where, in said solution of hydrogen peroxide, said hydrogen peroxide is present in a concentration of 2 to 20 volumes.

Claim 11

Dependent Claim 23 words

The process of claim 1 wherein the application of compositions (A) and (B) to said keratin fibers is separated by a rinsing stage.

Claim 12

Dependent Claim 34 words

The process of claim 1 wherein each of said composition (A) and (B) is permitted to remain in contact with said fibers for a period of time ranging from 10 seconds to 45 minutes.

Claim 13

Dependent Claim 33 words

The process of claim 1 wherein each of said compositions (A) and (B) is permitted to remain in contact with said fibers for a period of time ranging from 2 to 25 minutes.

Claim 14

Dependent Claim 25 words

The process of claim 1 wherein said medium suitable for dyeing said fibers in said compositions (A) and (B) is water or a water-solvent mixture.

Claim 15

Dependent Claim 62 words

The process of claim 13 wherein said solvent is selected from the group consisting of ethyl alcohol, propyl alcohol, isopropyl alcohol, tert. butyl alcohol, ethylene glycol, ethylene glycol monomethylether, ethylene glycol monoethylether, ethylene glycol monobutylether, diethylene glycol monomethylether, diethylene glycol monoethylether, diethyleneglycol monobutylether, ethylene glycol monomethylether acetate, ethylene glycol monoethylether acetate, propylene glycol, propylene glycol monomethylether, dipropylene glycol monomethylether and methyl lactate.

Claim 16

Dependent Claim 17 words

The process of claim 1 wherein said medium suitable for dyeing said fibers is an anhydrous solvent.

Claim 17

Dependent Claim 63 words

The process of claim 15 wherein said anhydrous solvent is selected from the group consisting of ethyl alcohol, propyl alcohol, isopropyl alcohol, tert. butyl alcohol, ethylene glycol, ethylene glycol monomethylether, ethylene glycol monoethylether, ethylene glycol monobutylether, diethylene glycol monomethylether, diethylene glycol monoethylether, diethyleneglycol monobutylether, ethylene glycol monomethylether acetate, ethylene glycol monoethylether acetate, propylene glycol, propylene glycol monomethylether, dipropylene glycol monomethylether and methyl lactate.

Claim 18

Dependent Claim 34 words

The process of claim 1 wherein said indole colorant is present in said composition (A) in an amount ranging from 0.03 to 3 percent by weight based on the total weight of said composition.

Claim 19

Dependent Claim 46 words

The process of claim 1 wherein said source of iodide ions is present in said compositions (A) or (B) in an amount ranging from 0.08 to 1.5 percent by weight, expressed as I - ions, based on the total weight of said compositions (A) or (B).

Claim 20

Dependent Claim 24 words

The process of claim 1 wherein the weight ratio of said indole colorant to said source of iodide ions is between 0.05 and 10.

Claim 21

Dependent Claim 24 words

The process of claim 1 wherein the weight ratio of said indole colorant to said source of iodide ions is between 0.5 to 2.

Claim 22

Dependent Claim 72 words

The process of claim 1 wherein at least one of said compositions (A) and (B) also contains at least one additive selected from the group consisting of a fatty amide; an anionic, cationic, nonionic or amphoteric surfactant or a mixture thereof; a thickening agent; a fragrance; a sequestering agent; a film-forming agent; a treatment agent; a dispersing agent; a conditioning agent; a preservative; an opacifying agent; and a keratin fiber swelling agent.

Claim 23

Dependent Claim 51 words

The process of claim 1 wherein said composition (A) is prepared at the time of use by admixing composition (A 1 ) comprising, in a medium suitable for dyeing said fibers, said indole colorant with composition (A 2 ) comprising, in a medium suitable for dyeing said fibers, said hydrogen peroxide.

Claim 24

Dependent Claim 16 words

The process of claim 1 wherein said composition (A) also contains 5,6-dihydroxyindole or a derivative thereof.

Claim 25

Dependent Claim 20 words

The process of claim 1 wherein at least one of said compositions (A) and (B) also contains an oxidation colorant.

Claim 26

Dependent Claim 39 words

The process of claim 1 wherein at least one of said compositions (A) and (B) also contains a direct colorant selected from the group consisting of a nitrobenzene dye, an anthraquinone dye, a naphthoquinone dye and a benzoquinone dye.

Claim 27

Dependent Claim 12 words

The process of claim 1 wherein said keratin fibers are human hair.

Claim 28

Dependent Claim 153 words

A composition for dyeing keratin fibers comprising, in a medium suitable for dyeing said fibers, at least one indole colorant having the formula ##STR4## wherein R 1 represents hydrogen or C 1 -C 4 alkyl; R 2 and R 3 , each independently, represent hydrogen, C 1 -C 4 lower alkyl, carboxyl or C 1 -C 4 alkoxycarbonyl; the OH radical occupying position 4, 5, 6 or 7, with the proviso that when said OH radical occupies position 5, at least one of R 1 , R 2 or R 3 is other than hydrogen, or a salt of said indole or a precursor of said indole, said indole being present in an amount ranging from 0.01 to 5 percent by weight based on the total weight of said composition, and a source of iodide ions present in an amount ranging from 0.007 to 4 percent by weight expressed as I - ions.

Claim 29

Dependent Claim 153 words

A composition for dyeing keratin fibers comprising, in a medium suitable for dyeing said fibers, at least one indole colorant having the formula ##STR4## wherein R 1 represents hydrogen or C 1 -C 4 alkyl; R 2 and R 3 , each independently, represent hydrogen, C 1 -C 4 lower alkyl, carboxyl or C 1 -C 4 alkoxycarbonyl; the OH radical occupying position 4, 5, 6 or 7, with the proviso that when said OH radical occupies position 5, at least one of R 1 , R 2 or R 3 is other than hydrogen, or a salt of said indole or a precursor of said indole, said indole being present in an amount ranging from 0.01 to 5 percent by weight based on the total weight of said composition, and a source of iodide ions present in an amount ranging from 0.007 to 4 percent by weight expressed as I - ions.

Claim 30

Dependent Claim 9 words

The composition of claim 27 which also contains 5,6-dihydroxyindole.

Claim 31

Dependent Claim 185 words

A multi-compartment kit for dyeing keratin fibers comprising a first compartment containing a composition comprising in a medium suitable for dyeing said keratin fibers at least one indole colorant having the formula ##STR5## R 1 represents hydrogen or C 1 -C 4 alkyl; R 2 and R 3 , each independently, represent hydrogen, C 1 -C 4 lower alkyl, carboxyl or C 1 -C 4 alkoxycarbonyl; the OH radical occupying position 4, 5, 6 or 7, with the proviso that when said OH radical occupies position 5, at least one of R 1 , R 2 or R 3 is other than hydrogen, a salt of said indole or a precursor of said indole, said indole being present in an amount ranging from 0.01 to 5 percent by weight based on the total weight of said composition, and a source of iodide ions present in an amount ranging from 0.007 to 4 percent by weight expressed as I - ions and a second compartment containing an aqueous solution of hydrogen peroxide at a concentration of 1-40 volumes having a pH ranging from 2 to 12.

Claim 32

Dependent Claim 185 words

A multi-compartment kit for dyeing keratin fibers comprising a first compartment containing a composition comprising in a medium suitable for dyeing said keratin fibers at least one indole colorant having the formula ##STR5## R 1 represents hydrogen or C 1 -C 4 alkyl; R 2 and R 3 , each independently, represent hydrogen, C 1 -C 4 lower alkyl, carboxyl or C 1 -C 4 alkoxycarbonyl; the OH radical occupying position 4, 5, 6 or 7, with the proviso that when said OH radical occupies position 5, at least one of R 1 , R 2 or R 3 is other than hydrogen, a salt of said indole or a precursor of said indole, said indole being present in an amount ranging from 0.01 to 5 percent by weight based on the total weight of said composition, and a source of iodide ions present in an amount ranging from 0.007 to 4 percent by weight expressed as I - ions and a second compartment containing an aqueous solution of hydrogen peroxide at a concentration of 1-40 volumes having a pH ranging from 2 to 12.

Claim 33

Dependent Claim 211 words

A multi-compartment kit for dyeing keratin fibers comprising (i) a first compartment containing a composition comprising, in an anhydrous medium suitable for dyeing said fibers, at least one indole coloration having the formula ##STR6## wherein R 1 represents hydrogen or C 1 -C 4 alkyl; R 2 and R 3 , each independently, represent hydrogen, C 1 -C 4 lower alkyl, carboxyl or C 1 -C 4 alkoxycarbonyl; the OH radical occupying position 4, 5, 6 or 7, with the proviso that when said OH radical occupies position 5, at least one of R 1 , R 2 or R 3 is other than hydrogen, a salt of said indole or a precursor of said indole, said indole being present in an amount ranging from 0.01 to 5 percent by weight based on the total weight of said composition, and a source of iodide ions present in an amount ranging from 0.007 to 4 percent by weight expressed as I - ions, (ii) a second compartment containing an aqueous solution of hydrogen peroxide at a concentration of 1-40 volumes having a pH ranging from 2 to 12, and (iii) a third compartment containing an aqueous medium to be mixed at the time of use with the contents of said first compartment.

Claim 34

Dependent Claim 211 words

A multi-compartment kit for dyeing keratin fibers comprising (i) a first compartment containing a composition comprising, in an anhydrous medium suitable for dyeing said fibers, at least one indole coloration having the formula ##STR6## wherein R 1 represents hydrogen or C 1 -C 4 alkyl; R 2 and R 3 , each independently, represent hydrogen, C 1 -C 4 lower alkyl, carboxyl or C 1 -C 4 alkoxycarbonyl; the OH radical occupying position 4, 5, 6 or 7, with the proviso that when said OH radical occupies position 5, at least one of R 1 , R 2 or R 3 is other than hydrogen, a salt of said indole or a precursor of said indole, said indole being present in an amount ranging from 0.01 to 5 percent by weight based on the total weight of said composition, and a source of iodide ions present in an amount ranging from 0.007 to 4 percent by weight expressed as I - ions, (ii) a second compartment containing an aqueous solution of hydrogen peroxide at a concentration of 1-40 volumes having a pH ranging from 2 to 12, and (iii) a third compartment containing an aqueous medium to be mixed at the time of use with the contents of said first compartment.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1994-07-22	1995-01-21	1995-07-23	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1998-07-22	1999-01-21	1999-07-23	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2002-07-22	2003-01-21	2003-07-23	$7700.00	Window Closed / Lapsed

Process for dyeing keratin fibres with a monohydroxyindole associated with an iodide and hydrogen peroxide

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