Anti-dandruff compositions and hair care formulations containing zinc pyrithione and quaternary ammonium salt
US9968537B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Sep 2, 2014 |
| Grant date | May 15, 2018 |
| Priority date | — |
| Expiry date | Sep 2, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/591
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention discloses a stable biocidal composition with enhanced antifungal activity at low concentration of active (s) and a process for preparing the same. The composition comprises: zinc pyrithione, C8-C18 quaternary ammonium salt (preferably cetylpyridinium chloride), water miscible glycol/polyol/glycol ether/lactam, organic amine and/or alkanol amine. The composition can be formulated into: hair care formulations, antidandruff hair care formulations, water based paints, coatings, adhesives, hard surface cleaners, fabric care compositions, wood products, plastic products and medical products. The biocidal compositions and the resulting formulations are transparent or opaque and are stable at varying pH and humidity conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.