Polyamic acid composition, polyimide endless belt, and image forming apparatus
US9052654B2 · kind B2 · utility
1Cited by
4References
11Claims
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Key dates
| Filing date | Mar 11, 2009 |
| Grant date | Jun 9, 2015 |
| Priority date | — |
| Expiry date | Sep 23, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/2016
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyamic acid composition includes a conductive carbon black and a polyamic acid in which a diamine compound, a tetracarboxylic acid dianhydride, and an acid monoanhydride have been reacted at a quantitative ratio satisfying the following Relational Expression (1) and Relational Expression (2). In Relational Expressions (1) and (2), X represents a content by mol of the diamine compound, Y represents a content by mol of the tetracarboxylic acid dianhydride, and Z represents a content by mol of the acid monoanhydride.0.962≦Y/X≦0.997 Relational Expression (1)0.20≦Z/2(X−Y)<0.80. Relational Expression (2)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.