Permanent waving composition
US5350572A · kind A · utility
54Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 18, 1993 |
| Grant date | Sep 27, 1994 |
| Priority date | — |
| Expiry date | Feb 18, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K8/46
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An entirely new class of reducing agents with substantially enhanced beneficial results is attained by employing polyoxyethyleneglycol dimercaptoalkylester compounds in a permanent waving lotion. This new class of reducing agents are water soluble, non-volatile and provide a substantially reduced malodor effect. Furthermore, by employing the dithiol compounds of the present invention as the reducing agent, long lasting hair conditioning and enhanced physical attributes, such as shine, luster, softness, manageability, and hair thickness, are also realized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.