| 摘要 |
<p>This invention relates to oriented polyester shaped, molded, or formed objects having improved ultraviolet stability and to a process for producing the same. More particularly, the invention relates to an oriented linear polyester film, fiber, foils, sheets, end other shaped, molded, or formed objects prepared from polyester compositions containing conventional monochromophoric ultraviolet stabilizers which when oriented provide objects having improved weatherability, Conventional monochromophoric ultraviolet stabilizers are those which contain a single ultraviolet absorbing chromophore.</p> |
