×

Agents for reducing the damage to hair during bleaching and dyeing

  • US 4,138,478 A
  • Filed: 11/03/1976
  • Issued: 02/06/1979
  • Est. Priority Date: 11/04/1975
  • Status: Expired due to Term
First Claim
Patent Images

1. An aqueous composition adapted to change the color of hair by the action of nascent oxygen therein, said composition having water, an oxidizing agent and an effective content of a diphosphonic compound selected from the group consisting of aminopropane diphosphonic acids of the formula ##STR2## wherein R1 and R2 each represent H or C1-3 alkyl, and the water-soluble salts thereof as an agent inhibiting the effect of said oxygen in degrading said hair.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×