Electrophotographic endless belt, process for producing...

Details Electrophotographic endless belt, process for producing... Electrophotographic endless belt, process for producing...

2007-04-10

2007-04-10

Woodward, Ana (Department: 1711)

Stock material or miscellaneous articles

Composite

Of polyamide

C428S035700, C399S297000, C399S302000, C399S308000, C430S031000, C430S032000, C430S126200, C525S182000, C525S183000

Reexamination Certificate

active

10995269

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-log10η curve) showing the relationship between temperature T (° C.) and common logarithm log10η of melt viscosity η (Pa·s), of the resin composition has, in the range of log10η of from log101,000 to log108,000, a gently inclined region the inclination Δ log10η/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.

REFERENCES:
patent: 5021036 (1991-06-01), Tanaka et al.
patent: 5158619 (1992-10-01), Kawada et al.
patent: 2002/0058189 (2002-05-01), Tanaka et al.
patent: 03-089357 (1991-04-01), None
patent: 05-345368 (1993-12-01), None
patent: 2845059 (1999-01-01), None
patent: 11-352796 (1999-12-01), None
patent: 2001-350347 (2001-12-01), None

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