Fabrication of high performance polybenzimidazole films

Details Fabrication of high performance polybenzimidazole films Fabrication of high performance polybenzimidazole films

1987-09-18

1990-05-22

Anderson, Philip

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

21050028, 264 41, 264216, 264239, 26433112, 528342, C08G 7318, B29C 3914, B29C 6722

Patent

active

049279092

ABSTRACT:
The instant invention involves a process for producing continuous polybenzimidazole films. The process is comprised of the following steps:

REFERENCES:
patent: 3836500 (1974-09-01), Calundann et al.
patent: 4048139 (1977-09-01), Calundann et al.
patent: 4448687 (1984-05-01), Wang
patent: 4487735 (1984-12-01), Chenevey et al.
patent: 4512894 (1985-04-01), Wang
patent: 4554119 (1985-11-01), Chenevey
patent: 4717619 (1988-01-01), Letinski
patent: 4734466 (1988-03-01), Kindler et al.
"History and Development of Polybenzimidazoles", by E. J. Powers and G. A. Serad, presented by E. J. Powers at the Symposium on the History of High Performance Polymers, American Chemical Society, N.Y., Apr. 15-18, 1986, and published in High Performance Polymers: Their Origin and Development, Raymond B. Seymour and Gerald S. Kishenbaum, eds., N.Y. (1986), pp. 355-373.

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