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Cosmestic compositions containing a cationic polymer and an anionic polymer as thickening agent

  • US 4,839,166 A
  • Filed: 05/15/1987
  • Issued: 06/13/1989
  • Est. Priority Date: 05/16/1986
  • Status: Expired due to Term
First Claim
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1. Thickening agent resulting from the ionic interaction of a cationic polymer consisting of a copolymer of cellulose or of a cellulose derivative which is grafted with a quaternary ammonium salt of a water-soluble monomer, said cationic polymer having an absolute capillary viscosity at 1% in water at 30°

  • C. which is less than 0.025 Pa s, and of a carboxylic anionic polymer having a molecular weight of 500 to 3,000,000, said carboxylic anionic polymer having an absolute capillary viscosity at a concentration of 5% in dimethylformamide or methanol at 30°

    C. which is less than or equal to 0.030 Pa s, said thickening agent having an Epprecht-Drage viscosity, module 3, higher than or equal to 0.45 Pa s in solution at a concentration of 1% in water at 21°

    C., and the weight ratio of said cationic polymer to said carboxylic anionic polymer in said thickening agent being in the range of 1/5 to 5/1.

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