| 摘要 |
<p>A microporous olefing substrate coated with pressure sensitive adhesive. The microporous olefin substrate has the property of entrapping a plasticizer migrating from plasticized polymeric surfaces to which it is applied, particularly plasticized polyvinylchloride. The microporous olefin substrate is preferably formed of a high molecular weight polyolefin such as a microporous high molecular weight polyethylene. The sheeting preferably is heat resistant so that it does not distort, crease or wrinkle when applied to a plasticized surface and exposed to elevated temperatures such as 400 °F (204 °C).</p> |
