Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Gregory S. Copeland0
Michael Gruender0
Karin M. Hudson0
John B. Hopkins, Jr.0
Date of Patent
April 30, 2019
0Patent Application Number
157918640
Date Filed
October 24, 2017
0Patent Citations Received
Patent Primary Examiner
Patent abstract
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.
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