Melt processable PMR-type polyimides
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United States of America Patent
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Nov 4, 2003
Grant Date -
Oct 18, 2001
app pub date -
Mar 2, 2001
filing date -
Mar 3, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention provides PMR-type polyimides that exhibit lower melt viscosities than PMR-type polyimides of the prior art. These PMR-type polyimides are created by incorporating flexible linkages, such as kinked structures and twisted or non-coplanar moietes into the backbone structure of the PMR. Specifically, the present invention provides for the production of PMR-type polyimides having 2,2'-disubstituted biaryls in the polymer backbone.
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