Hair care composition comprising polydimethylsiloxane polymer emulsion
US10463599B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 26, 2015 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Sep 17, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K8/416
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention provides a hair care composition obtainable by blending a conditioning gel phase with an aqueous polydimethylsiloxane polymer emulsion; the conditioning gel phase being formed from a cationic surfactant, a high melting point (25° C. or higher) fatty compound and an aqueous carrier; and the aqueous polydimethylsiloxane polymer emulsion having an aqueous continuous phase consisting of water and a blend of nonionic and cationic surfactants and a dispersed phase consisting of a polydimethylsiloxane polymer and a hydrocarbon oil, wherein the polydimethylsiloxane polymer has a dynamic viscosity of 50,000 to 110,000 cP at 25° C., and the hydrocarbon oil has a kinematic viscosity of 1 to 35 cSt at 40° C. and a specific gravity of 0.76 to 0.87 at 25° C., and the weight ratio of the polydimethylsiloxane polymer to the hydrocarbon oil is 45:55 to 70:30.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.