Enhanced oil delivery from structured surfactant formulations
US7749951B2 · kind B2 · utility
6Cited by
16References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 30, 2007 |
| Grant date | Jul 6, 2010 |
| Priority date | — |
| Expiry date | Jan 30, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D1/90
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Described are methods for preparing compositions that include the steps of (a) premixing a cationic guar gum in water; (b) adding a surfactant component to the premix of (a); (c) adding about 1 to about 3 weight % of salt to the mixture obtained in (b); (d) applying shear to the mixture obtained in (c) at a shear rate not exceeding about 20 sec−1 to form a spherulite composition; and (f) mixing an oil phase with the spherulite composition. Also included are compositions prepared by this process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.