| 摘要 |
<p>The flexible, weatherable decorative sheet material provided by the present invention comprises a thermoformable decorative paint film having an inner surface and a weatherable outer surface suitable for forming an exterior finish for a part, such as an automobile body part. The sheet material includes an extensible mask releasably adhered to the outer surface of the paint film to form a protective film overlying the paint film. The mask comprises no more than about 50mg/m2 of N-methyl-2-pyrrolidone, preferably about 6 to about 50 mg/m2 of N-methyl-2-pyrrolidone. The mask may comprise a polyester urethane polymer and a polyether urethane polymer, wherein the polyether urethane polymer has a lower concentration of N-methyl-2-pyrrolidone than the polyester urethane polymer. A method of constructing the decorative sheet material and a composite shaped part including the decorative sheet material are also provided.</p> |
