Invention Grant
- Patent Title: Method for producing aqueous polyimide precursor solution composition
-
Application No.: US16832337Application Date: 2020-03-27
-
Publication No.: US11407868B2Publication Date: 2022-08-09
- Inventor: Takeshige Nakayama , Susumu Takasaki , Tomonori Nakayama , Kensuke Hiroshige
- Applicant: UBE INDUSTRIES, LTD.
- Applicant Address: JP Ube
- Assignee: UBE INDUSTRIES, LTD.
- Current Assignee: UBE INDUSTRIES, LTD.
- Current Assignee Address: JP Ube
- Agency: Knobbe, Martens, Olson & Bear, LLP
- Priority: JP2012-005694 20120113
- Main IPC: C08J5/18
- IPC: C08J5/18 ; C08L79/08 ; C08K5/3445 ; B29C39/00 ; B29C39/38 ; C08G73/10 ; B29K79/00 ; B29K105/00 ; B29L31/34
Abstract:
A method for producing an aqueous polyimide precursor solution includes forming a polyamic acid by the reaction of a tetracarboxylic acid component and a diamine component in water without organic solvent together with an imidazole in an amount of 1.6 mole or more per mole of the tetracarboxylic acid component of the polyamic acid.
Public/Granted literature
- US20200247969A1 METHOD FOR PRODUCING AQUEOUS POLYIMIDE PRECURSOR SOLUTION COMPOSITION Public/Granted day:2020-08-06
Information query
