Weak acid skin cleanser
US6582687B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1999 |
| Grant date | Jun 24, 2003 |
| Priority date | — |
| Expiry date | Nov 12, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q19/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A weak acid skin cleanser containing an alkali salt of N-acylamino acid and maltitolhydroxy aliphatic ether, or a hydroxy ether carboxylic acid-based anionic surfactant, or polyethylene powder, as well as water and an organic acid. Also, a weak acid skin cleanser containing an alkali salt of N-acylamino acid, a betaine-based ampholytic surfactant, water, and an organic acid. The weak acid skin cleansers mentioned above provide creamy and rich foaming, rapid rinsing, refreshing sensation during use, moist skin sensation after cleaning, and shelf stability of the base agent (separation, offensive odor, discoloration, etc.), and are free of increasing hardness over time at room temperature and below.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.