Electrophotographic endless belt, process for producing electrophotographic endless belt, and electrophotographic apparatus
US7201967B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2004 |
| Grant date | Apr 10, 2007 |
| Priority date | — |
| Expiry date | Nov 26, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31739
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In an electrophotographic endless belt having a resin layer formed of a resin composition containing a polyamide, the resin composition further contains a copolymer obtained by copolymerization of an olefin and an oxygen-containing heterocyclic compound, a curve (T-log10 η curve) showing the relationship between temperature T (° C.) and common logarithm log10 η of melt viscosity η (Pa·s), of the resin composition has, in the range of log10 η of from log10 1,000 to log10 8,000, a gently inclined region the inclination Δ log10 η/ΔT of which is from −0.02 to 0, and the gently inclined region has a temperature range of 10° C. or more, and the resin layer has a thickness the maximum thickness of which is 115% or less of the average value of the thickness of the resin layer and the minimum thickness of which is 85% or more of the average value of the thickness of the resin layer. Also disclosed is a process for producing the above electrophotographic endless belt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.