Patent · US Expired

Quaternized copolymers suitable as active ingredients in cosmetic formulations, such as hair styling compositions

US5869032A · kind A · utility

8Cited by
2References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 27, 1997
Grant dateFeb 9, 1999
Priority date
Expiry dateMar 27, 2017

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61Q5/06
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

Quaternized copolymers suitable as active ingredients in hair styling compositions are obtainable from N-vinylimidazoles, N-vinylcaprolactam, N-vinylpyrrolidone and, if required, further monomers.

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