摘要 |
<p>In prodn. of pearl pigments based on metal oxide-coated mica flakes, in which rutile TiO2 and SnO2 are ppted. from aq. metal salt solns. onto the mica flakes in aq. suspension, followed by washing, drying and firing the pigment, the novelty is that SnO2 pption is completed before addn. of the Ti salt soln..</p> |