Ultraviolet light screening compositions
OwnerJohn Knowland, Peter Dobson +1inventors
InventorsJohn Knowland, Peter Dobson, Gareth Wakefield
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Abstract
A UV screening composition comprising particles which are capable of absorbing UV light so that electrons and positively charged holes are formed within the particles, characterised in that the particles are adapted to minimise migration to the surface of the particles of the electrons and/or the positively charged holes when said particles are exposed to UV light in an aqueous environment.
Claims21
A UV screening composition comprising particles which are capable of absorbing UV light so that electrons and positively charged holes are formed within the particles, characterised in that the particles are adapted to minimise migration to the surface of the particles of the electrons and/or the positively charged holes when said particles are exposed to UV light in an aqueous environment.
Dependencies are inferred from the claim text.