Phenylated polyimides prepared from 3,6-diarylpyromellitic...

Details Phenylated polyimides prepared from 3,6-diarylpyromellitic... Phenylated polyimides prepared from 3,6-diarylpyromellitic...

C - Chemistry, Metallurgy

08

G

C08G 73/10 (2006.01) B01D 71/64 (2006.01) C07D 493/04 (2006.01)

Patent

CA 2050348

2050348 9010025 PCTABS00002 A new class of soluble phenylated polyimides made from 3,6-diarypyromellitic dianhydride and process for the manufacture of the 3,6-diarypyromellitic dianhydride starting material. The polyimides obtained with said dianhydride are readily soluble in appropriate organic solvents and are distinguished by excellent thermal, electrical and/or mechanical properties making the polyimides ideally suited as coating materials for microelectronic apparatii, as membranes for selective molecular separation or permeation or selective gas separation or permeation, or as reinforcing fibers in molecular composites, or as high modulus, high tensile strength fibers.

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