Method for preparing microtubular halloysite nanopowders
US8540957B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2010 |
| Grant date | Sep 24, 2013 |
| Priority date | — |
| Expiry date | Nov 1, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2004/13
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention provides a method for preparing microtubular halloysite nanopowders by cutting halloysite nanotubes at a high pressure, microtubular halloysite nanopowders prepared by the method, and a cosmetic composition comprising the microtubular halloysite nanopowders. According to the method of the present invention, it is possible to prepare the halloysite nanopowders with a tubular shape using natural halloysite and effectively select a halloysite nanopowder having a desired shape. The microtubular halloysite nanopowders can be used in many industrial fields and used as a container or a carrier for nanoparticles or organic materials such as drugs, air fresheners, cosmetics, agricultural chemical materials, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.