Particulate metal oxide

Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...

Reexamination Certificate

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Details

C106S419000, C106S425000, C106S429000, C106S432000, C106S442000, C106S443000, C106S447000, C106S450000, C106S452000, C106S453000, C106S455000, C106S456000, C106S460000, C106S461000, C106S471000, C106S479000, C106S480000, C106S482000, C106S491000, C106S499000, C424S059000

Reexamination Certificate

active

11266214

ABSTRACT:
A particulate metal oxide having the mean length of the primary particles in the range from 50 to 90 nm, the mean width of the primary particles in the range from 5 to 20 nm, and the median volume particle diameter of the secondary particles is less than 45 nm. The metal oxide can be used in a sunscreen product that exhibits both effective UV protection and improved transparency.

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