| 摘要 |
<p>THIS INVENTION PROVIDES A THERMOPLASTIC MULTILAYER RESINOUS FILM IN WHICH TWO OR MORE RESINOUS MATERIALS FORM A PLURALITY OF VERY THIN LAYERS OF SUBSTANTIALLY UNIFORM THICKNESS, THE LAYERS BEING SUBSTANTIALLY PARALLEL, THE CONTIGUOUS ADJACENT LAYERS BEING OF DIFFERENT TRANSPARENT THERMOPLASTIC RESINOUS MATERIALS DIFFERING IN REFRACTIVE INDEX, EACH OF THE OUTERMOST SKIN LAYERS BEING AT LEAST 5% OF THE TOTAL THICKNESS OF THE FILM AND THE MULTILAYER FILM CONTAINING A SUFFICIENT QUANTITY OF A PEARLESCENT PIGMENT TO RENDER IT NON-GLOSSY.</p> |
