Patent · US Active

Product for keratin-containing fibers, containing at least a specific copolymer of the N-vinylpyrrolidone and at least a polymer with structural units derived from maleic acid ester

US9132079B2 · kind B2 · utility

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17Claims
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Key dates

Filing dateNov 20, 2012
Grant dateSep 15, 2015
Priority date
Expiry dateNov 20, 2032

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61K2800/594
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

Agents for treating keratin-containing fibers, in particular human hair, and methods for the use of such agents are provided. The agent includes at least one copolymer (a) and at least one copolymer (b). The copolymer (a) includes at least one structural unit of a formula (I) and at least one structural unit of a formula (II). Copolymer (b) includes at least one structure unit of formula (AI) and at least one structural unit of formula (A2). The agent is contained in a cosmetically acceptable carrier.

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