| 摘要 |
<p>AROMATIC AMORPHOUS THERMOPLASTIC POLYMERS Described herein are amorphous thermoplastic polymers containing units of the formula: (I) < IMG >, and (II) < IMG > wherein R is independently hydrogen, C1 to C6 alkyl, or C4 to C8 cycloalkyl, a is an integer of 0 to 4 and n is independently an integer of 1 to 3. The units are attached to each other by an -O- bond. These polymers have an excellent combination of mechanical properties. They display high notched izod impact values, high heat distortion temperatures and excellent environmental stress crack resistance. S P E C I F I C A T I O N</p> |
