Patent ID: 7438836
Filing Date: 2008-10-21
Classification: B82Y,C01P,C03C,C08K,C09C,C09D

Abstract:
1. A dispersion comprising zinc oxide powder and at least one additive, wherein said zinc oxide powder has: a BET specific surface area of 10 to 200 m an average secondary particle size in the dispersion of less than 300 nm; and a solid content of between 0.1 and 60 wt. % in relation to the total quantity of the dispersion, wherein the zinc oxide in said zinc oxide powder is in the form of aggregates, wherein said aggregates comprise particles of varying morphology and wherein the aggregates are present: 0-10% in a circular form; 30-50% in an ellipsoidal form; 30-50% in a linear form; and 20-30% in a branched form.