POROUS POLYBENZIMIDAZOLE RESIN AND METHOD OF MAKING THE SAME

PROBLEM TO BE SOLVED: To provide a polybenzimidazole resin that can be quickly and easily dissolved at ambient temperatures and pressures with readily available and commonly used mixing equipment.SOLUTION: A porous polybenzimidazole (PBI) particulate resin is disclosed. This resin is easily dissolve...

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Hauptverfasser:	COPELAND GREGORY S, JOHN B HOPKINS JR, GRUENDER MICHAEL, HUDSON KARIN M
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a polybenzimidazole resin that can be quickly and easily dissolved at ambient temperatures and pressures with readily available and commonly used mixing equipment.SOLUTION: A porous polybenzimidazole (PBI) particulate resin is disclosed. This resin is easily dissolved at ambient temperatures and pressures. The resin is made by: dissolving a virgin PBI resin in a highly polar solvent; precipitating the dissolved PBI in a bath; and drying the precipitated PBI, the dried precipitated PBI being porous. The porous PBI resin may be dissolved by: mixing a porous PBI resin with a highly polar solvent at ambient temperatures and pressures to form a solution. 【課題】迅速にかつ容易に、常温及び常圧で、容易に利用でき一般的に使用される混合装置を使用して溶解するポリベンゾイミダゾール樹脂を提供する。【解決手段】多孔質ポリベンゾイミダゾール（ＰＢＩ）微粒子樹脂が開示される。この樹脂は常温及び常圧で容易に溶解する。この樹脂は、バージンＰＢＩ樹脂を高極性溶媒に溶解させ、溶解したＰＢＩを浴中に沈殿させ、沈殿したＰＢＩを乾燥することによって多孔質させることにより製造される。多孔質ＰＢＩ樹脂は、多孔質ＰＢＩ樹脂を高極性溶媒に室温及び常圧で混合して溶液を形成することにより溶解することができる。【選択図】図１