Formulations and application methods for permanent wave enhancements
US5241973A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 1, 1992 |
| Grant date | Sep 7, 1993 |
| Priority date | — |
| Expiry date | May 1, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K8/46
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
By providing a composition for use with a conventional keratin reducing agent which comprises at least one mono or dimercaptopolyoxyethylene compound, a substantially improved and enhanced permanent wave is attained which provides a substantially increased long-lasting and durable hair set retention, as well as enhanced hair conditioning, sheen and manageability. In the preferred embodiment, the composition of the present invention is employed either as a post treatment after the application of a conventional hair keratin reducing agent or as an additive in the conventional reducing formulation. Furthermore, the preferred mono or dimercaptopolyoxyethylene compound employed preferably comprises a molecular weight ranging between about 200 and 800.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.