Patent ID: 6056815
Filing Date: 2000-05-02
Classification: C01P,C09C,Y10T

Abstract:
A method for producing platelet substrates with a TiO.sub.2 coating having a rutile structure, comprising the steps of:(1) precipitating at least one hydrolyzed Ti(III) salt onto at least one platelet substrate to form a primary coated substrate coated with a Ti initiating layer;(2) precipitating at least one hydrolyzed Ti(IV) salt onto the Ti initiating layer to form a secondary coated substrate, coated with a Ti initiating layer and a Ti coating layer;(3) heat treating the secondary coated substrate for a sufficient time and at a sufficient temperature to convert the Ti in both the Ti initiating layer and the Ti coating layer to TiO.sub.2 having a rutile structure.