Invention Grant
- Patent Title: Polyimide resin
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Application No.: US15505784Application Date: 2016-03-10
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Publication No.: US10174167B2Publication Date: 2019-01-08
- Inventor: Yuuki Sato
- Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
- Applicant Address: JP Chiyoda-ku
- Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
- Current Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
- Current Assignee Address: JP Chiyoda-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2015-056249 20150319; JP2015-224147 20151116
- International Application: PCT/JP2016/057511 WO 20160310
- International Announcement: WO2016/147997 WO 20160922
- Main IPC: C08G73/10
- IPC: C08G73/10 ; C08J5/18 ; G01N21/35

Abstract:
A polyimide resin containing a repeating structural unit represented by the following formula (1) and a repeating structural unit represented by the following formula (2), a content ratio of the repeating structural unit of formula (1) with respect to the total of the repeating structural unit of formula (1) and the repeating structural unit of formula (2) being 20 to 70 mol %, and the polyimide resin having a chain aliphatic group having from 5 to 14 carbon atoms at an end thereof:wherein R1 represents a divalent group having from 6 to 22 carbon atoms containing at least one alicyclic hydrocarbon structure; R2 represents a divalent chain aliphatic group having from 5 to 16 carbon atoms; and X1 and X2 each independently represent a tetravalent group having from 6 to 22 carbon atoms containing at least one aromatic ring.
Public/Granted literature
- US20170275425A1 POLYIMIDE RESIN Public/Granted day:2017-09-28
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