Moldable polybenzimidazole filaments and process for producing m

Details Moldable polybenzimidazole filaments and process for producing m Moldable polybenzimidazole filaments and process for producing m

1987-05-06

1989-03-07

Anderson, Philip

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

Synthetic resins

Cellular products or processes of preparing a cellular...

264 453, 264 53, 264 54, 264143, 264257, 26433112, 264DIG9, 264DIG64, 264DIG66, 521 77, 521189, 528208, 528342, C08G 7318, B29C 6722, B29C 4328

Patent

active

048107301

ABSTRACT:
This invention relates to a process for the production of high strength polybenzimidazole filaments and molded products made from such filaments. The filaments produced by this process contain from about 10 to about 50 percent by weight residual solvent and can be heated at a temperature of about 350.degree. C. to about 600.degree. C. to produce three-dimensional foamed articles.

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Vogel, Herward and C. S. Marvel "Polybenzimidazoles, New Thermally Stable Polymers," in Journal of Polymer Science, vol. L., pp. 511-539 (1961).

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