Surfactant-free oil-in-water emulsion stabilized by hollow thermoplastic particles
US5637291A · kind A · utility
70Cited by
2References
25Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 11, 1995 |
| Grant date | Jun 10, 1997 |
| Priority date | — |
| Expiry date | Jul 11, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q19/002
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An emulsion of an oily phase in a surfactant-free gelled aqueous phase containing expanded hollow thermoplastic particles of acrylonitrile polymer or copolymer. The particles ensure the dispersion of the oily phase in the gelled aqueous phase and are preferably particles of expanded copolymers of acrylonitrile and acrylic or styrene-based monomers and/or vinylidene chloride. The emulsion obtained can be employed, for example, for the care or cleansing of skin and/or hair or for use in a skin make-up. It can also form a dermatological product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.