Multiactive electrophotographic element
First Claim
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1. In an electrophotographic element comprising:
- an electrically conductive support;
a charge-generation layer comprising a photoconductive material sensitive to visible or infrared radiaton; and
a charge-transport layer containing a triarylamine charge-transport material,the improvement wherein the charge-transport layer comprises a mixture of a polycarbonate comprising poly[2,2-bis(4-hydroxyphenyl)propane carbonate] and a polyester formed from 2,2-bis(4-hydroxyphenyl)propane and terephthalic and isophthalic acids, and the weight ratio of the polycarbonate to the polyester is in the range of 9;
1 to 3;
7.
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Abstract
An improved reusable multiactive electrophotographic element has a charge-transport layer comprising a triarylamine charge-transport material in a mixture of binders comprising poly[2,2-bis(4-hydroxyphenyl)propane carbonate] and a polyester of 2,2-bis(4-hydroxyphenyl)propane and terephthalic and isophthalic acids, with the weight ratio of the polycarbonate to the polyester being in the range of 9:1 to 3:7.
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Citations
3 Claims
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1. In an electrophotographic element comprising:
- an electrically conductive support;
a charge-generation layer comprising a photoconductive material sensitive to visible or infrared radiaton; and
a charge-transport layer containing a triarylamine charge-transport material,the improvement wherein the charge-transport layer comprises a mixture of a polycarbonate comprising poly[2,2-bis(4-hydroxyphenyl)propane carbonate] and a polyester formed from 2,2-bis(4-hydroxyphenyl)propane and terephthalic and isophthalic acids, and the weight ratio of the polycarbonate to the polyester is in the range of 9;
1 to 3;
7. - View Dependent Claims (2, 3)
- an electrically conductive support;
Specification