Claims
- 1. A non-toxic oxidation hair dye composition comprising an aqueous carrier, as a para component from about .1% to 6% by weight based on the total weight of the composition of a compound of formula:
- a. ##SPC10##
- or acid addition salts thereof and
- b. from about 0.1% to 8% by weight based on the total weight of the composition of an oxidatively couplable component comprising a phenol which couples with said para component to give blue or violet compounds wherein:
- R.sub.1 is hydroxyalkyl;
- R.sub.2 is hydrogen or hydroxyalkyl;
- R.sub.3 is hydrogen, alkyl, alkoxy or halogen; and
- R.sub.4 occupies any one of the remaining positions on the benzene ring and is hydrogen, alkyl, alkoxy or halogen;
- and wherein the alkyl or alkoxy contains 1 to 6 carbon atoms and the hydroxyalkyl contains 2 to 6 carbon atoms;
- providing that R.sub.2 is hydrogen when R.sub.3 is alkyl, alkoxy or halogen;
- and providing that at least two of R.sub.2, R.sub.3 or R.sub.4 are other than hydrogen.
- 2. A non-toxic oxidation hair dye composition comprising an aqueous carrier, as a para component from about 0.1% to 6% by weight based on the total weight of the composition of a compound of formula:
- a. ##SPC11## or acid addition salts thereof and
- b. from about .1% to 8% by weight based on the total weight of the composition of an oxidatively couplable component comprising a phenol which couples with said para component and is selected from the group consisting of pyrogallol, resorcinol, pyrocatechol and alpha-naphthol wherein:
- R.sub.1 is hydroxyalkyl;
- R.sub.2 is hydrogen or hydroxyalkyl;
- R.sub.3 is hydrogen, alkyl, alkoxy or halogen; and
- R.sub.4 occupies any one of the remaining positions on the benzene ring and is hydrogen, alkyl, alkoxy or halogen;
- and wherein the alkyl or alkoxy contains 1 to 6 carbon atoms and the hydroxyalkyl contains 2 to 6 carbon atoms;
- providing that R.sub.2 is hydrogen when R.sub.3 is alkyl, alkoxy or halogen;
- and providing that at least two of R.sub.2, R.sub.3 or R.sub.4 are other than hydrogen.
- 3. A composition according to claim 2 wherein said phenol is alpha-naphthol.
- 4. A composition according to claim 2 wherein R.sub.1 and R.sub.2 are hydroxyalkyl and R.sub.3 and R.sub.4 are hydrogen.
- 5. A composition according to claim 4 wherein R.sub.1 and R.sub.2 are 2-hydroxyethyl.
- 6. A composition according to claim 2 wherein R.sub.1 is hydroxyalkyl, R.sub.2 is hydrogen, R.sub.3 is alkyl and R.sub.4 is hydrogen.
- 7. A composition according to claim 6 wherein R.sub.1 is 2-hydroxyethyl and R.sub.3 is methyl.
- 8. A composition according to claim 2 wherein R.sub.1 and R.sub.2 are hydroxyalkyl, R.sub.3 is hydrogen and R.sub.4 is alkyl which occupies position number 3 on the benzene nucleus.
- 9. A composition according to claim 8 wherein R.sub.1 and R.sub.2 are 2-hydroxyethyl and R.sub.4 is methyl which occupies position number 3 on the benzene nucleus.
- 10. A composition according to claim 2 in which both R.sub.1 and R.sub.2 are 2-hydroxyethyl.
- 11. A composition according to claim 2 wherein said para component is N,N-bis(2-hydroxyethyl)-p-phenylenediamine sulfate and said phenol is alphanaphthol.
- 12. A composition according to claim 2 including as an additional para component a compound selected from the group consisting of p-toluenediamine, p-aminophenol, p-aminodiphenylamine; 4,4'-diaminodiphenylamine; p-phenylenediamine; 2,6-dimethyl-p-phenylenediamine and 2,5-diaminopyridine.
- 13. A composition according to claim 12 wherein R.sub.1 and R.sub.2 are 2-hydroxyethyl, R.sub.3 and R.sub.4 are hydrogen and also containing p-phenylenediamine.
- 14. A composition according to claim 12 wherein R.sub.1 and R.sub.2 are 2-hydroxyethyl, R.sub.3 and R.sub.4 are hydrogen and wherein the additional para component is p-toluenediamine.
- 15. A method for dyeing hair which comprises applying the composition of claim 2 with an oxidizing agent to the hair until the hair is dyed.
Parent Case Info
This is a division of Application Ser. No. 186,475 filed Oct. 4, 1971 now U.S. Pat. No. 3,884,627.
US Referenced Citations (5)
Divisions (1)
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Number |
Date |
Country |
Parent |
186475 |
Oct 1971 |
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