Vadim G. Kessler,Gulaim A. Seisenbaeva,Sebastian Håkansson,Maria Unell
申请号：
US12304513
公开号：
US08455554B2
申请日:
2007.06.12
申请国别(地区):
US
年份:
2013
代理人:
摘要：
A process for preparing a hydrosol of one or more metal oxides, e.g. titanium dioxide, comprising preparing a metal alkoxide solution in a water-miscible organic solvent, e.g. an alcohol providing an aqueous solvent mixing the metal alkoxide solution with the aqueous solvent in a volume or weight proportion to form a single-phase aqueous sol colloid (hydrosol) of hydrated metal oxide in absence of a non-ionic block polymer surfactant. Also disclosed is a corresponding hydrogel water-insoluble particles encapsulated in hydrated metal oxide and a process for their encapsulation uses of the encapsulation products.
