Fixing belt, fixing device, and image forming apparatus
US10877413B1 · kind B1 · utility
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11Claims
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Key dates
| Filing date | May 20, 2020 |
| Grant date | Dec 29, 2020 |
| Priority date | — |
| Expiry date | May 20, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2057
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A fixing belt includes a polyimide layer. The polyimide layer includes polyimide and an aprotic solvent. The solvent has a boiling point not lower than 230° C. and a solubility parameter not less than 24.5 (J/cm3)1/2 and not greater than 30.7 (J/cm3)1/2. The solvent has a content not less than 0.1 ppm and not greater than 1000 ppm in the polyimide layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.