Hair treatment compositions incorporating hair substantive polymers
US8298519B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2007 |
| Grant date | Oct 30, 2012 |
| Priority date | — |
| Expiry date | Sep 15, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/57
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention provides a hair treatment composition comprising a hair substantive polymer, the hair substantive polymer comprising a polymeric backbone bearing: (a) at least one side chain which is formed from a hair fiber targeting group which is covalently linked to the polymeric backbone, the hair fiber targeting group being a non-cationic species which is capable of specifically interacting with the protein surface of the hair fiber in a non-covalent interaction having a bond energy ranging from 0.5 to 3 Kcal/mol, when the composition is applied to hair; (b) preferably, at least one side chain which is different to side chain (a) and which comprises a hair benefit agent. Compositions of the invention provide for deposition and delivery of benefit agents to hair in a more efficient and targeted manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.