Ian Robert Tooley,Robert Michael Sayer,Paul Martin Staniland
申请号：
US13515208
公开号：
US09682869B2
申请日:
2010.12.22
申请国别(地区):
US
年份:
2017
代理人:
摘要：
A particulate titanium dioxide has a median volume particle diameter of greater than 70 nm. The titanium dioxide can be produced by calcining precursor particles. The titanium dioxide has enhanced UVA efficacy. The particulate titanium dioxide can be used to form dispersions. The particulate titanium dioxide or dispersions can be used to produce sunscreen products having a UV protection which is at least one third of the label SPF value.
