Invention Grant
- Patent Title: Resorcinol-free hair colouring compositions
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Application No.: US17655585Application Date: 2022-03-21
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Publication No.: US11517514B2Publication Date: 2022-12-06
- Inventor: Antonio Consoli , Katiuscia Grevalcuore , Monica Besozzi , Emanuela Facchetti , Massimo Fabbi
- Applicant: BEAUTY & BUSINESS S.p.A.
- Applicant Address: IT Milan
- Assignee: BEAUTY & BUSINESS S.p.A.
- Current Assignee: BEAUTY & BUSINESS S.p.A.
- Current Assignee Address: IT Milan
- Agency: Silvia Salvadori, P.C.
- Agent Silvia Salvadori
- Priority: IT102021000007352 20210325
- Main IPC: A61Q5/10
- IPC: A61Q5/10 ; A61K8/41 ; A61K8/49

Abstract:
The present invention relates to hair colouring compositions free of resorcinol, 2-methyl resorcinol, 4-chloro resorcinol and resorcinol derivatives and free of methoxymethyl-p-phenylenediamine, said compositions comprising at least three dyes selected from at least one primary dye selected from p-toluenediamine sulphate, p-aminophenol, N-methyl-p-aminophenol sulphate and 1-hydroxyethyl-4,5-diamino pyrazole sulphate, and at least two secondary dyes selected from hydroxyethyl 3,4-methylenedioxyaniline HCl, 2-amino-3-hydroxypyridine and 2-methyl-5-hydroxyethylaminophenol, or at least two primary dyes selected from p-toluenediamine sulphate, p-aminophenol, N-methyl-p-aminophenol sulphate and 1-hydroxyethyl-4,5-diamino pyrazole sulphate, and at least one secondary dye selected from hydroxyethyl 3,4-methylenedioxyaniline HCl, 2-amino-3-hydroxypyridine and 2-methyl-5-hydroxyethylaminophenol.
Public/Granted literature
- US20220304908A1 RESORCINOL-FREE HAIR COLOURING COMPOSITIONS Public/Granted day:2022-09-29
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