John Sebastian Knowland,Peter James Dobson,Gareth Wakefield
申请号：
US11054188
公开号：
US08642019B2
申请日:
2005.02.09
申请国别(地区):
US
年份:
2014
代理人:
摘要：
A UV screening composition comprises particles which are capable of absorbing UV light so that electrons and positively charged holes are formed within the particles. The particles are adapted to minimize migration to the surface of the particles of the electrons and/or the positively charged holes when the particles are exposed to UV light in an aqueous environment.
