Invention Grant
- Patent Title: PBI films formed without use of organic solvents
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Application No.: US17522160Application Date: 2021-11-09
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Publication No.: US11884787B2Publication Date: 2024-01-30
- Inventor: Laura A. Murdock , Lihui Wang , Fei Huang , Brian C. Benicewicz
- Applicant: UNIVERSITY OF SOUTH CAROLINA
- Applicant Address: US SC Columbia
- Assignee: UNIVERSITY OF SOUTH CAROLINA
- Current Assignee: UNIVERSITY OF SOUTH CAROLINA
- Current Assignee Address: US SC Columbia
- Agency: DORITY & MANNING, P.A
- Main IPC: C08J5/22
- IPC: C08J5/22 ; B01D67/00
Abstract:
A novel process for making PBI films starting from gel PBI membranes polymerized and casted in the PPA process wherein acid-imbibed gel PBIs are neutralized in a series of water baths and undergo controlled drying in association with a substrate material, yielding a PBI film without the use of organic solvents.
Public/Granted literature
- US20220064391A1 METHOD FOR PRODUCING PBI FILMS WITHOUT ORGANIC SOLVENTS Public/Granted day:2022-03-03
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