Invention Grant
- Patent Title: Method for producing polyimide resin powder, and thermoplastic polyimide resin powder
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Application No.: US14905637Application Date: 2014-08-04
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Publication No.: US09670320B2Publication Date: 2017-06-06
- Inventor: Yuuki Sato , Jun Mitadera
- 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: JP2013-163303 20130806; JP2013-163304 20130806; JP2013-163308 20130806
- International Application: PCT/JP2014/070532 WO 20140804
- International Announcement: WO2015/020019 WO 20150212
- Main IPC: C08G75/00
- IPC: C08G75/00 ; C08G73/10 ; C09J179/08 ; C08G63/00

Abstract:
The present invention provides a method for producing a polyimide resin powder, including the step of reacting (A) a tetracarboxylic acid component containing a tetracarboxylic dianhydride with (B) a diamine component containing an aliphatic diamine in the presence of (C) a solvent containing an alkylene glycol-based solvent represented by the formula (1): wherein Ra1 represents a hydrogen atom or an alkyl group having from 1 to 4 carbon atoms, Ra2 represents a linear alkylene group having from 2 to 6 carbon atoms, and n represents an integer of 1-3.
Public/Granted literature
- US20160159984A1 METHOD FOR PRODUCING POLYIMIDE RESIN POWDER, AND THERMOPLASTIC POLYIMIDE RESIN POWDER Public/Granted day:2016-06-09
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