| 摘要 |
The subject invention relates to the use of certain iron oxide spinels to color plastics. The iron oxide spinels are acicular particles having an average length of less than 0.1 micron and are represented by the formulae XFe2O4 or YFe5O8 in which X is a metal selected from the group consisting of Zn, Sn, Cu, Ca, Cd, Co, Ba, Sr, Mg, Al, and Mn, and Y is Li. The spinels are incorporated into plastics by methods which are known to those of ordinary skill in the art. The resulting plastics can be made with a wide variety of colors and can be used to coat surfaces without hiding the underlying surface.
|
