| 摘要 |
<p>Disclosed are unoriented polyester sheet materials and molded articles having a thickness of at least 10 mil and having excellent clarity and heat stability. The polyesters used in the manufacture of the sheet materials and molded articles are derived from terephthalic acid and 1,4-butanediol and certain modifying monomers. Also disclosed are methods for manufacturing the aforesaid sheet materials and molded articles.</p> |
