Invention Grant
- Patent Title: Method for quantitative analysis of monomers in polyimide film
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Application No.: US16484021Application Date: 2018-09-28
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Publication No.: US11549920B2Publication Date: 2023-01-10
- Inventor: Su Youn Han , Byoung Hyoun Kim , Dong Hyun Kim , Soo Ah Nam , Bora Shin
- Applicant: LG Chem, Ltd.
- Applicant Address: KR Seoul
- Assignee: LG Chem, Ltd.
- Current Assignee: LG Chem, Ltd.
- Current Assignee Address: KR Seoul
- Agency: Lerner, David, Littenberg, Krumholz & Mentlik, LLP
- Priority: KR10-2017-0154651 20171120
- International Application: PCT/KR2018/011481 WO 20180928
- International Announcement: WO2019/098524 WO 20190523
- Main IPC: G01N30/06
- IPC: G01N30/06 ; G01N33/44 ; G01N30/02 ; G01N30/62
Abstract:
An analysis method is provided, wherein a measurement sample containing a diamine and an acid dianhydride can be obtained without a separate methyl derivatization process. The analysis method includes pretreating a polyimide film including the polyimide which is a poorly soluble polymer with DMAc after hydrolysis, and determining an amount of monomers contained in the polyimide film.
Public/Granted literature
- US20190391118A1 Method for Quantitative Analysis of Monomers in Polyimide Film Public/Granted day:2019-12-26
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