RESIN BASES WITH A LIGHT-RESISTANT TITANIC ACID COATING FILM

摘要

The invention provides a titanic acid coating film excellent in light resistance and resin bases with titanic acid coating films, namely, a light-resistant titanic acid coating film obtained by applying a suspension of flaky titanic acid to a substrate and drying the coating, characterized in that the suspension of flaky titanic acid is an aqueous suspension of flaky titanic acid which is prepared by treating a layered titanate with an acid, making an organic basic compound act on the obtained product to conduct interlaminar swelling or delamination, and then replacing the organic basic compound by cesium ions and, preferably, in that the layered titanate is one represented by the general formula: A x M y –¡ z Ti 2-(y+z) O 4 [wherein A and M are different from each other and are each a mono-to tri-valent metal; –¡ represents a Ti-defective site; x is a positive real number satisfying the relationship: 0<x<1; and y and z are 0 or positive real numbers satisfying the relationship: 0<y+z<1].