Titanium dioxide aggregates process for producing same and electrophotographic photosensitive material containing same
AssigneeIshihara Sangyo Kaisha, Ltd.
InventorSadao Murasawa
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Abstract
The present invention provides novel titanium dioxide aggregates especially suitable for an electrophotographic photosensitive material. This titanium dioxide aggregates comprise sintered aggregates of fine primary particles and have a rutile type crystal structure and an oil absorption of 35-65. This titanium dioxide aggregates which are treated with a mineral acid is also provided. There is also provided an electrophotograpic photosensitive material which contains such titanium dioxide in a photosensitive layer.
Claims16
Titanium dioxide aggregates for use in an electro-photographic photoconductor which comprises sintered aggregates of fine primary particles having a rutile type structure, an aggregate size of 1 to 5 .mu.m and an oil absorption of 35 to 65.
Titanium dioxide aggregates for use in an electro-photographic photoconductor, treated with a mineral acid which comprise sintered aggregates of fine primary particles having a rutile type structure, an aggregate size of 1 to 5 .mu.m and an oil absorption of 35 to 65.
An electrophotographic photosensitive material which comprises an electroconductive support and, laminated thereon, a photosensitive layer consisting essentially of titanium dioxide and a binder wherein said titanium dioxide is in the form of titanium dioxide aggregates which comprise sintered aggregates of fine primary particles having a rutile type crystal structure, an aggregate size of 1 to 5 .mu.m and an oil absorption of 35-65.
Dependencies are inferred from the claim text.