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公开(公告)号：US4681716A
公开(公告)日：1987-07-21
申请号：US835812
申请日：1986-03-03
申请人： John S. Letinski
发明人： John S. Letinski
CPC分类号： C08J9/142 , C08J2379/04 , Y10S264/05
摘要： The present invention is a process for the preparation of polybenzimidazole foams. Polybenzimidazoles containing 10 to 30 percent by weight residual solvent can be heated at a temperature of about 350.degree. C. to about 600.degree. C. to produce three dimensional foamed articles.
摘要翻译： 本发明是制备聚苯并咪唑泡沫的方法。 含有10〜30重量％残留溶剂的聚苯并咪唑可以在约350℃至约600℃的温度下加热以制备三维泡沫制品。
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2.发明授权Moldable polybenzimidazole filaments and process for producing molded and foamed products from these filaments 失效可成型的聚苯并咪唑长丝和用于从这些长丝生产模塑和发泡产品的方法
公开(公告)号：US4810730A
公开(公告)日：1989-03-07
申请号：US47250
申请日：1987-05-06
CPC分类号： C08J9/142 , C08J2379/04 , Y10S264/05 , Y10S264/64 , Y10S264/66
摘要： 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.
摘要翻译： 本发明涉及一种生产高强度聚苯并咪唑长丝的方法和由这种长丝制成的成型品。 通过该方法生产的长丝含有约10至约50重量％的残余溶剂，并且可以在约350℃至约600℃的温度下加热以制备三维泡沫制品。
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3.发明授权Process for the production of molded polybenzimidazole articles and the resultant articles 失效用于生产模制的聚苯并咪唑制品和所得制品的方法
公开(公告)号：US4717619A
公开(公告)日：1988-01-05
申请号：US792383
申请日：1985-10-29
申请人： John S. Letinski
发明人： John S. Letinski
CPC分类号： B29B9/04 , B29K2079/00 , Y10T428/31721 , Y10T442/3854 , Y10T442/3862
摘要： Disclosed herein is a process for the production of shaped polybenzimidazole articles which comprises forming a solvent solution of the polymer, depositing the solution on a support to form a film, removing sufficient solvent from the deposited film such that the film contains from about 10 to about 30 percent by weight of said solvent and compression molding the resulting product into a shaped article. Thus, this invention provides a unique process for the forming of molded shaped articles from polybenzimidazole based polymers.
摘要翻译： 本文公开了一种制备成型聚苯并咪唑制品的方法，其包括形成聚合物的溶剂溶液，将溶液沉积在载体上以形成膜，从沉积膜除去足够的溶剂，使得膜含有约10至约 30重量％的所述溶剂并将所得产品压缩成型成型制品。 因此，本发明提供了一种用于从聚苯并咪唑基聚合物形成成型成型制品的独特方法。
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