Infused sponge delivery system
US8546640B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2007 |
| Grant date | Oct 1, 2013 |
| Priority date | — |
| Expiry date | Sep 13, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q19/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method for delivering active ingredients to a wet substrate from a flexible, three-dimensional, water-absorbent substrate material comprised of a web of substantially water-insoluble fibers into which is infused a solid anhydrous composition having a melting point of from about 45° C. to about 55° C. said anhydrous composition comprising (i) at least one surfactant selected from the group consisting of cationic quaternary surfactants, anionic surfactants or nonionic surfactants or one multi-lamellar liquid crystal emulsifier system, (ii) at least one fatty alcohol, (iii) at least one emollient selected from the group consisting of cosmetically-acceptable oils, esters and liquid triglycerides, (iv) at least one active ingredient and (v) optionally, a solid cleansing agent having a melting point from about 50° C. to about 70° C. Preferred active ingredients are skincare and haircare actives, including emollients, humectants, conditioning agents, sunscreens and sunblocks, and artificial tanning agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.