US6074439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation dye composition for keratin fibers containing an oxidation dye precursor and an anionic amphiphilic polymer
Assignee: L'Oréal SA
•
Filing: 1999-04-16
•
Granted: 2000-06-13
•
Expires: 2019-04-16
Abstract
Abstract An oxidation dye composition for keratin fibers, in particular for human keratin fibers such as the hair, this composition comprising, in a medium which is suitable for dyeing, at least one oxidation dye precursor and optionally one or more couplers, and also an anionic amphiphilic polymer containing at least one hydrophilic unit, and at least one allyl ether unit containing a fatty chain, and dyeing processes and dyeing devices using the oxidation composition.
Inventors
- 👤 Roland de la Mettrie
- 👤 Françoise Boudy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:09
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/10; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61K8/411; A61K8/72; A61K8/81; A61K8/8141; A61K8/8152; A61K2800/00; A61K2800/80; A61K2800/88
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
119 words
An oxidation dye composition for keratin fibers, said composition comprising, in a medium which is suitable for dyeing, at least one oxidation dye precursor and at least one anionic amphiphilic polymer containing at least one hydrophilic unit and at least one allyl ether unit containing a fatty chain, wherein said allyl ether unit containing a fatty chain is a monomer of the formula (I) CH.sub.2 =CR'CH.sub.2 OB.sub.n R (I) in which R' denotes H or CH 3 , B denotes an ethylenoxy radical, n is zero or denotes an integer ranging from 1 to 100, and R denotes a hydrocarbon radical selected from alkyl, arylalkyl, aryl, alkylaryl, and cycloalkyl radicals wherein R comprises from 8 to 30 carbon atoms.
Claim 2
Dependent Claim
119 words
An oxidation dye composition for keratin fibers, said composition comprising, in a medium which is suitable for dyeing, at least one oxidation dye precursor and at least one anionic amphiphilic polymer containing at least one hydrophilic unit and at least one allyl ether unit containing a fatty chain, wherein said allyl ether unit containing a fatty chain is a monomer of the formula (I) CH.sub.2 =CR'CH.sub.2 OB.sub.n R (I) in which R' denotes H or CH 3 , B denotes an ethylenoxy radical, n is zero or denotes an integer ranging from 1 to 100, and R denotes a hydrocarbon radical selected from alkyl, arylalkyl, aryl, alkylaryl, and cycloalkyl radicals wherein R comprises from 8 to 30 carbon atoms.
Claim 3
Dependent Claim
130 words
An oxidation dye composition for keratin fibers, said composition comprising water, propylene glycol, sodium sulphite, at least one oxidation dye precursor, at least one coupler, at least one anionic amphiphilic polymer containing at least one hydrophilic unit and at least one allyl ether unit containing a fatty chain, at least one cationic polymer, and at least one oxidizing agent, wherein said at least one oxidation dye precursor is selected from para-phenylenediamine, and acid addition salts of N,N-bis(β-hydroxyethyl)-para-phenylenediamine, said at least one coupler is selected from 1,3-dihydroxybenzene, 2-methyl-5-aminophenol, heterocyclic couplers, 3-aminophenol, and acid addition salts of 1,3-diaminobenzene, said at least one anionic amphiphilic polymer is a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol, and said oxidizing agent is hydrogen peroxide.
Claim 4
Dependent Claim
130 words
An oxidation dye composition for keratin fibers, said composition comprising water, propylene glycol, sodium sulphite, at least one oxidation dye precursor, at least one coupler, at least one anionic amphiphilic polymer containing at least one hydrophilic unit and at least one allyl ether unit containing a fatty chain, at least one cationic polymer, and at least one oxidizing agent, wherein said at least one oxidation dye precursor is selected from para-phenylenediamine, and acid addition salts of N,N-bis(β-hydroxyethyl)-para-phenylenediamine, said at least one coupler is selected from 1,3-dihydroxybenzene, 2-methyl-5-aminophenol, heterocyclic couplers, 3-aminophenol, and acid addition salts of 1,3-diaminobenzene, said at least one anionic amphiphilic polymer is a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol, and said oxidizing agent is hydrogen peroxide.
Claim 5
Dependent Claim
49 words
An oxidation dye composition according to claim 2, wherein said crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol is an aqueous emulsion containing 30% of a crosslinked terpolymer of methacrylic acid, of ethyl acrylate, and of steareth-10 allyl ether.
Claim 6
Dependent Claim
98 words
A kit for dyeing human hair, said kit comprising at least two compartments, one of said compartments containing an oxidation dye composition comprising water; propylene glycol; sodium sulphite; at least one oxidation dye precursor selected from para-phenylenediamine and acid addition salts of N,N-bis(β-hydroxyethyl)-para-phenylenediamine; at least one coupler selected from 1,3-dihydroxybenzene, 2-methyl-5-aminophenol, heterocyclic couplers, 3-aminophenol, and acid addition salts of 1,3-diaminobenzene; and at least one cationic polymer, and a second of said compartments containing a composition comprising hydrogen peroxide and a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol.
Claim 7
Dependent Claim
98 words
A kit for dyeing human hair, said kit comprising at least two compartments, one of said compartments containing an oxidation dye composition comprising water; propylene glycol; sodium sulphite; at least one oxidation dye precursor selected from para-phenylenediamine and acid addition salts of N,N-bis(β-hydroxyethyl)-para-phenylenediamine; at least one coupler selected from 1,3-dihydroxybenzene, 2-methyl-5-aminophenol, heterocyclic couplers, 3-aminophenol, and acid addition salts of 1,3-diaminobenzene; and at least one cationic polymer, and a second of said compartments containing a composition comprising hydrogen peroxide and a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol.
Claim 8
Dependent Claim
62 words
A kit for dyeing human hair according to claim 4, wherein said crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol is an aqueous emulsion containing 30% of a crosslinked terpolymer of methacrylic acid, of ethyl acrylate, and of steareth-10 allyl ether and wherein said heterocyclic couplers are selected from 1-phenyl-3-methylpyrazol-5-one, and 1-H-3-methylpyrazol-5-one.
Claim 9
Dependent Claim
72 words
A kit for dyeing human hair, said kit comprising at least two compartments, one of said compartments containing an oxidation dye composition comprising water, propylene glycol, sodium sulphite, para-phenylenediamine, 1,3-dihydroxybenzene, heterocyclic couplers, 3-aminophenol, and an acid addition salt of 1,3-diaminobenzene, and a second of said compartments containing a composition comprising hydrogen peroxide and a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol.
Claim 10
Dependent Claim
72 words
A kit for dyeing human hair, said kit comprising at least two compartments, one of said compartments containing an oxidation dye composition comprising water, propylene glycol, sodium sulphite, para-phenylenediamine, 1,3-dihydroxybenzene, heterocyclic couplers, 3-aminophenol, and an acid addition salt of 1,3-diaminobenzene, and a second of said compartments containing a composition comprising hydrogen peroxide and a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol.
Claim 11
Dependent Claim
67 words
A kit for dyeing human hair, said kit comprising at least two compartments, one of said compartments containing an oxidation dye composition comprising water, propylene glycol, sodium sulphite, para-phenylenediamine, 1,3-dihydroxybenzene, heterocyclic couplers, 3-aminophenol, and 2-methyl-1,3-dihydroxybenzene, and a second of said compartments containing a composition comprising hydrogen peroxide and a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol.
Claim 12
Dependent Claim
67 words
A kit for dyeing human hair, said kit comprising at least two compartments, one of said compartments containing an oxidation dye composition comprising water, propylene glycol, sodium sulphite, para-phenylenediamine, 1,3-dihydroxybenzene, heterocyclic couplers, 3-aminophenol, and 2-methyl-1,3-dihydroxybenzene, and a second of said compartments containing a composition comprising hydrogen peroxide and a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol.
Claim 13
Dependent Claim
79 words
A kit for dyeing human hair, said kit comprising at least two compartments, one of said compartments containing an oxidation dye composition comprising water, propylene glycol, sodium sulphite, para-phenylenediamine, an acid addition salt of N,N-bis(β-hydroxyethyl)-para-phenylenediamine, 1,3-dihydroxybenzene, heterocyclic couplers, 3-aminophenol, 2-methyl-5-aminophenol, and an acid addition salt of 1,3-diaminobenzene, and a second of said compartments containing a composition comprising hydrogen peroxide and a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol.
Claim 14
Dependent Claim
79 words
A kit for dyeing human hair, said kit comprising at least two compartments, one of said compartments containing an oxidation dye composition comprising water, propylene glycol, sodium sulphite, para-phenylenediamine, an acid addition salt of N,N-bis(β-hydroxyethyl)-para-phenylenediamine, 1,3-dihydroxybenzene, heterocyclic couplers, 3-aminophenol, 2-methyl-5-aminophenol, and an acid addition salt of 1,3-diaminobenzene, and a second of said compartments containing a composition comprising hydrogen peroxide and a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol.
Claim 15
Dependent Claim
123 words
An oxidation dye composition for keratin fibers, said composition comprising water, propylene glycol, sodium sulphite, at least one oxidation dye precursor, at least one coupler, at least one anionic amphiphilic polymer containing at least one hydrophilic unit and at least one allyl ether unit containing a fatty chain, and at least one oxidizing agent, wherein said at least one oxidation dye precursor is selected from para-phenylenediamine, para-aminophenol, and acid addition salts of N,N-bis(β-hydroxyethyl)-para-phenylenediamine, said at least one coupler is selected from 1,3-dihydroxybenzene, 2-methyl-1,3-dihydroxybenzene, 2-methyl-5-aminophenol, heterocyclic couplers, α-naphthol, and 3-aminophenol, said at least one anionic amphiphilic polymer is a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol, and said oxidizing agent is hydrogen peroxide.
Claim 16
Dependent Claim
123 words
An oxidation dye composition for keratin fibers, said composition comprising water, propylene glycol, sodium sulphite, at least one oxidation dye precursor, at least one coupler, at least one anionic amphiphilic polymer containing at least one hydrophilic unit and at least one allyl ether unit containing a fatty chain, and at least one oxidizing agent, wherein said at least one oxidation dye precursor is selected from para-phenylenediamine, para-aminophenol, and acid addition salts of N,N-bis(β-hydroxyethyl)-para-phenylenediamine, said at least one coupler is selected from 1,3-dihydroxybenzene, 2-methyl-1,3-dihydroxybenzene, 2-methyl-5-aminophenol, heterocyclic couplers, α-naphthol, and 3-aminophenol, said at least one anionic amphiphilic polymer is a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol, and said oxidizing agent is hydrogen peroxide.
Claim 17
Dependent Claim
49 words
An oxidation dye composition according to claim 9, wherein said crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol is an aqueous emulsion containing 30% of a crosslinked terpolymer of methacrylic acid, of ethyl acrylate, and of steareth-10 allyl ether.
Claim 18
Dependent Claim
91 words
A kit for dyeing human hair, said kit comprising at least two compartments, one of said compartments containing an oxidation dye composition comprising water; propylene glycol; sodium sulphite; at least one oxidation dye precursor selected from para-phenylenediamine, para-aminophenol, and acid addition salts of N,N-bis(β-hydroxyethyl)-para-phenylenediamine; and at least one coupler selected from 1,3-dihydroxybenzene, 2-methyl-1,3-dihydroxybenzene, 2-methyl-5-aminophenol, heterocyclic couplers, α-naphthol, and 3-aminophenol, and a second of said compartments containing a composition comprising hydrogen peroxide and a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol.
Claim 19
Dependent Claim
91 words
A kit for dyeing human hair, said kit comprising at least two compartments, one of said compartments containing an oxidation dye composition comprising water; propylene glycol; sodium sulphite; at least one oxidation dye precursor selected from para-phenylenediamine, para-aminophenol, and acid addition salts of N,N-bis(β-hydroxyethyl)-para-phenylenediamine; and at least one coupler selected from 1,3-dihydroxybenzene, 2-methyl-1,3-dihydroxybenzene, 2-methyl-5-aminophenol, heterocyclic couplers, α-naphthol, and 3-aminophenol, and a second of said compartments containing a composition comprising hydrogen peroxide and a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol.
Claim 20
Dependent Claim
62 words
A kit for dyeing human hair according to claim 11, wherein said crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol is an aqueous emulsion containing 30% of a crosslinked terpolymer of methacrylic acid, of ethyl acrylate, and of steareth-10 allyl ether and wherein said heterocyclic couplers are selected from 1-phenyl-3-methylpyrazol-5-one, and 1-H-3-methylpyrazol-5-one.
Claim 21
Dependent Claim
66 words
A kit for dyeing human hair, said kit comprising at least two compartments, one of said compartments containing an oxidation dye composition comprising water, propylene glycol, sodium sulphite, para-phenylenediamine, 1,3-dihydroxybenzene, α-naphthol, and heterocyclic couplers, and a second of said compartments containing a composition comprising hydrogen peroxide and a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol.
Claim 22
Dependent Claim
66 words
A kit for dyeing human hair, said kit comprising at least two compartments, one of said compartments containing an oxidation dye composition comprising water, propylene glycol, sodium sulphite, para-phenylenediamine, 1,3-dihydroxybenzene, α-naphthol, and heterocyclic couplers, and a second of said compartments containing a composition comprising hydrogen peroxide and a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol.
Claim 23
Dependent Claim
68 words
A kit for dyeing human hair, said kit comprising at least two compartments, one of said compartments containing an oxidation dye composition comprising water, propylene glycol, sodium sulphite, para-phenylenediamine, 1,3-dihydroxybenzene, 2-methyl-1,3-dihydroxybenzene, 2-methyl-5-aminophenol, heterocyclic couplers, and 3-aminophenol, and a second of said compartments containing a composition comprising hydrogen peroxide and a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol.
Claim 24
Dependent Claim
68 words
A kit for dyeing human hair, said kit comprising at least two compartments, one of said compartments containing an oxidation dye composition comprising water, propylene glycol, sodium sulphite, para-phenylenediamine, 1,3-dihydroxybenzene, 2-methyl-1,3-dihydroxybenzene, 2-methyl-5-aminophenol, heterocyclic couplers, and 3-aminophenol, and a second of said compartments containing a composition comprising hydrogen peroxide and a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol.
Claim 25
Dependent Claim
67 words
A kit for dyeing human hair, said kit comprising at least two compartments, one of said compartments containing an oxidation dye composition comprising water, propylene glycol, sodium sulphite, para-phenylenediamine, para-aminophenol, 1,3-dihydroxybenzene, heterocyclic couplers, and 3-aminophenol, and a second of said compartments containing a composition comprising hydrogen peroxide and a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol.
Claim 26
Dependent Claim
67 words
A kit for dyeing human hair, said kit comprising at least two compartments, one of said compartments containing an oxidation dye composition comprising water, propylene glycol, sodium sulphite, para-phenylenediamine, para-aminophenol, 1,3-dihydroxybenzene, heterocyclic couplers, and 3-aminophenol, and a second of said compartments containing a composition comprising hydrogen peroxide and a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol.
Claim 27
Dependent Claim
67 words
A kit for dyeing human hair, said kit comprising at least two compartments, one of said compartments containing an oxidation dye composition comprising water, propylene glycol, sodium sulphite, para-phenylenediamine, para-aminophenol, 2-methyl-1,3-dihydroxybenzene, 2-methyl-5-aminophenol, and heterocyclic couplers, and a second of said compartments containing a composition comprising hydrogen peroxide and a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol.
Claim 28
Dependent Claim
67 words
A kit for dyeing human hair, said kit comprising at least two compartments, one of said compartments containing an oxidation dye composition comprising water, propylene glycol, sodium sulphite, para-phenylenediamine, para-aminophenol, 2-methyl-1,3-dihydroxybenzene, 2-methyl-5-aminophenol, and heterocyclic couplers, and a second of said compartments containing a composition comprising hydrogen peroxide and a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol.
Claim 29
Dependent Claim
68 words
A kit for dyeing human hair, said kit comprising at least two compartments, one of said compartments containing an oxidation dye composition comprising water, propylene glycol, sodium sulphite, para-phenylenediamine, para-aminophenol, 1,3-dihydroxybenzene, 2-methyl-5-aminophenol, heterocyclic couplers, and α-naphthol, and a second of said compartments containing a composition comprising hydrogen peroxide and a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol.
Claim 30
Dependent Claim
68 words
A kit for dyeing human hair, said kit comprising at least two compartments, one of said compartments containing an oxidation dye composition comprising water, propylene glycol, sodium sulphite, para-phenylenediamine, para-aminophenol, 1,3-dihydroxybenzene, 2-methyl-5-aminophenol, heterocyclic couplers, and α-naphthol, and a second of said compartments containing a composition comprising hydrogen peroxide and a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol.
Claim 31
Dependent Claim
69 words
A kit for dyeing human hair, said kit comprising at least two compartments, one of said compartments containing an oxidation dye composition comprising water, propylene glycol, sodium sulphite, para-phenylenediamine, para-aminophenol, 1,3-dihydroxybenzene, 2-methyl-1,3-dihydroxybenzene, 2-methyl-5-aminophenol, heterocyclic couplers, and 3-aminophenol, and a second of said compartments containing a composition comprising hydrogen peroxide and a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol.
Claim 32
Dependent Claim
69 words
A kit for dyeing human hair, said kit comprising at least two compartments, one of said compartments containing an oxidation dye composition comprising water, propylene glycol, sodium sulphite, para-phenylenediamine, para-aminophenol, 1,3-dihydroxybenzene, 2-methyl-1,3-dihydroxybenzene, 2-methyl-5-aminophenol, heterocyclic couplers, and 3-aminophenol, and a second of said compartments containing a composition comprising hydrogen peroxide and a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol.
Claim 33
Dependent Claim
72 words
A kit for dyeing human hair, said kit comprising at least two compartments, one of said compartments containing an oxidation dye composition comprising water, propylene glycol, sodium sulphite, para-phenylenediamine, an acid addition salt of N,N-bis(β-hydroxyethyl)-para-phenylenediamine, 1,3-dihydroxybenzene, heterocyclic couplers, and α-naphthol, and a second of said compartments containing a composition comprising hydrogen peroxide and a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol.
Claim 34
Dependent Claim
72 words
A kit for dyeing human hair, said kit comprising at least two compartments, one of said compartments containing an oxidation dye composition comprising water, propylene glycol, sodium sulphite, para-phenylenediamine, an acid addition salt of N,N-bis(β-hydroxyethyl)-para-phenylenediamine, 1,3-dihydroxybenzene, heterocyclic couplers, and α-naphthol, and a second of said compartments containing a composition comprising hydrogen peroxide and a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol.
Claim 35
Dependent Claim
66 words
A kit for dyeing human hair, said kit comprising at least two compartments, one of said compartments containing an oxidation dye composition comprising water, propylene glycol, sodium sulphite, para-aminophenol, 2-methyl-1,3-dihydroxybenzene, 2-methyl-5-aminophenol, and heterocyclic couplers, and a second of said compartments containing a composition comprising hydrogen peroxide and a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol.
Claim 36
Dependent Claim
66 words
A kit for dyeing human hair, said kit comprising at least two compartments, one of said compartments containing an oxidation dye composition comprising water, propylene glycol, sodium sulphite, para-aminophenol, 2-methyl-1,3-dihydroxybenzene, 2-methyl-5-aminophenol, and heterocyclic couplers, and a second of said compartments containing a composition comprising hydrogen peroxide and a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol.
Claim 37
Dependent Claim
73 words
A kit for dyeing human hair, said kit comprising at least two compartments, one of said compartments containing an oxidation dye composition comprising water, propylene glycol, sodium sulphite, para-phenylenediamine, an acid addition salt of N,N-bis(β-hydroxyethyl)-para-phenylenediamine, 1,3-dihydroxybenzene, heterocyclic couplers, α-naphthol, and 3-aminophenol, and a second of said compartments containing a composition comprising hydrogen peroxide and a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol.
Claim 38
Dependent Claim
73 words
A kit for dyeing human hair, said kit comprising at least two compartments, one of said compartments containing an oxidation dye composition comprising water, propylene glycol, sodium sulphite, para-phenylenediamine, an acid addition salt of N,N-bis(β-hydroxyethyl)-para-phenylenediamine, 1,3-dihydroxybenzene, heterocyclic couplers, α-naphthol, and 3-aminophenol, and a second of said compartments containing a composition comprising hydrogen peroxide and a crosslinked terpolymer of methacrylic acid, of ethyl acrylate and of polyethylene glycol (10 EO) ether of stearyl alcohol.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2003-06-13 | 2003-12-13 | 2004-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-06-13 | 2007-12-13 | 2008-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-06-13 | 2011-12-13 | 2012-06-13 | $7700.00 | Window Closed / Lapsed |