Patent · US Active

Means for oxidative dyeing of keratin fibers containing novel tetra-substituted derivatives of pyrimidine

US9636288B2 · kind B2 · utility

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1References
13Claims
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Key dates

Filing dateJun 16, 2016
Grant dateMay 2, 2017
Priority date
Expiry dateJun 16, 2036

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61K2800/88
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

Agents for oxidatively dyeing keratinous fibers include, in a cosmetic carrier, as an oxidation dye precursor of the developer type, at least one compound of formula (I) as set forth herein, in which R1, R2 can stand independently of each other, for a hydrogen atom, different substituted alkyl groups, and/or different substituted acrylic groups, and Y stands for a hydroxyl group, an amino group, or a C1-C6 alkylamino group, with the proviso that at least one of the moieties from the group R1 and R2 does not stand for a hydrogen atom, and/or the physiologically compatible salt thereof.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.