Cover film on lipstick sampler
US4755433A · kind A · utility
22Cited by
5References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1986 |
| Grant date | Jul 5, 1988 |
| Priority date | — |
| Expiry date | Oct 30, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31895
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Wax-base or emollient-base cosmetic compositions may be provided as samples on paper carrying sheets by providing the paper with materials that prevent absorption of oleic materials and providing the cosmetic compositions with a lower sheet that is oleophobic. A binder layer of an oleophilic wax or polymer may be used between said paper and the cosmetic composition. A frangible, thin polymeric film is placed over the cosmetic composition to prevent shear forces and pressure from smearing the composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.