| 摘要 |
<p>Polyamide, Polyamide-imide and Polyimide Polymers and Process for their Manufacture Novel polyamides, polyamida-amide-acids or polyamide-acids having structural elements of the formula (I) and the corresponding derivatives which have been cyclised to the imide as weil as a process for their manufacture sre disclosed. The polymers according to the invention are readily soluble and can also be procsssed from the melt. They are further distinguished by good thermal, electricsl and/or mechanical properties.</p> |
