Method for producing polyimide resin powder, and thermoplastic polyimide resin powder
US9670320B2 · kind B2 · utility
1Cited by
1References
22Claims
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Key dates
| Filing date | Aug 4, 2014 |
| Grant date | Jun 6, 2017 |
| Priority date | — |
| Expiry date | Aug 4, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J179/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.