Acid perspiration resistant fluorescent compounds for treating hair
View Patent ↗Described herein is a hair treatment composition including one or more fluorescent compounds. The one or more fluorescent compounds each include a fluorophore, one or two permanent cations, one to four incipient cations, and one or more hydrophobic moieties. The incipient cations are pendant to the core structure and are neutral. The one or more fluorescent compounds enter the hair shaft after the hair treatment composition is applied to the hair. The hair treatment composition has a pH of from about 7 to about 11.
1. A hair treatment composition comprising a fluorescent compound of Formula V, Formula VIII, Formula X, Formula XII, Formula XIV, Formula XVI, Formula XXVI, Formula XXVII, homologs thereof, the partially or fully protonated forms thereof, and any combination thereof wherein these Formulas and homologs thereof have the following structures:
or a homolog thereof wherein the C8 alkyl hydrophobe bonded to the tertiary nitrogen is replaced by a C5 to C9 alkyl hydrophobe and one, two or three of the ethylenyl linkers bonded to the quaternary nitrogen are replaced by a propylenyl linker group;
or a homolog thereof wherein one or two of the C6 alkyl hydrophobe groups bonded to the quaternary nitrogen of the right side of Formula VIII are replaced by a C5 to C9 alkyl hydrophobe and one, two or three of the propylenyl linkers bonded to either or both of the quaternary nitrogens are replaced by an ethylenyl linker group;
or a homolog thereof wherein the C8 alkyl hydrophobe group bonded to the benzoxazolyl group is replaced by a C5 to C9 alkyl hydrophobe and one or two of the propylenyl linkers bonded to the imidazolyl group are replaced by an ethylenyl linker group;
or a homolog thereof wherein the C8 alkyl hydrophobe group bonded to the benzoxazolyl group is replaced by a C5 to C9 alkyl hydrophobe and one or two of the propylenyl linkers bonded to the imidazolyl group are replaced by an ethylenyl linker group;
or a homolog thereof wherein the C8 alkyl hydrophobe group bonded to the nitrogen of the quinolinyl group is replaced by a C5 to C9 alkyl hydrophobe and the propylenyl linker bonded to the nitrogen of the benzothiazolyl group is replaced by an ethylenyl linker group;
or a homolog thereof wherein the C6 alkyl hydrophobe groups bonded to the nitrogen at position 8 of the phenanthridinyl group are replaced by C5 to C9 alkyl hydrophobes and one or both of the propylenyl linkers bonded to the nitrogen at position 3 of the phenanthridinyl group are replaced by an ethylenyl liker group;
or a homolog thereof wherein the C6 alkyl hydrophobe groups bonded to the 3 position of the indolyl groups are replaced by C5 to C9 alkyl hydrophobes and the propylenyl linkers bonded to the nitrogen of the indolyl groups are replaced by an ethylenyl linker group;
or a homolog thereof wherein the C6 alkyl hydrophobe group bonded to the nitrogen of the benzothiazolyl group is replaced by a C5 to C9 alkyl hydrophobe and the propylenyl linker bonded to the nitrogen of the pyridinyl group is replaced by an ethylenyl linker group; and, wherein the hair treatment composition has a pH of from about 7 to about 11.
2. The hair treatment composition of claim 1 , wherein the one or more fluorescent compounds each comprise two incipient cations.
3. The hair treatment composition of claim 1 , wherein the one or more fluorescent compounds each has a molecular weight of less than about 1,000 g/mol.
4. The hair treatment composition of claim 1 , wherein the hair treatment composition further comprises one or more oxidative dye precursors.
5. The hair treatment composition of claim 1 , wherein the hair treatment composition further comprises one or more direct dyes.
6. The hair treatment composition of claim 1 , wherein the hair treatment composition has a pH of from about 9 to about 11.
7. The hair treatment composition of claim 1 , wherein the hair treatment composition has a pH of from about 7 to about 9.
8. The hair treatment composition of claim 1 , wherein the one or more fluorescent compounds is an optical brightening compound.
9. The hair treatment composition of claim 1 , wherein the hair treatment composition further comprises an oxidizing agent.
10. The hair treatment composition of claim 9 , wherein the oxidizing agent is selected from the group consisting of peroxides, perborates, percarbonates, persulfates, peroxidases and their substrates, laccases and their substrates, uricases and their substrates, oxidases and their substrates, and combinations thereof.