Titanium dioxide aggregates process for producing same and elect

Details Titanium dioxide aggregates process for producing same and elect Titanium dioxide aggregates process for producing same and elect

1989-12-28

1992-12-22

Martin, Roland

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Radiation-sensitive composition or product

430 95, 423610, 423612, 423615, 423616, 106436, 106437, 106438, 106449, G03G 508, C01G 23047, C09C 136

Patent

active

051733862

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.

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patent: 3862297 (1975-01-01), Claridge et al.
patent: 4150986 (1979-04-01), Takahata et al.
patent: 4525441 (1985-06-01), Takahata et al.
Chemical Abstracts vol. 98, No. 10, Mar. 7, 1983, p. 575, abstract No. 81496q, Columbus, Ohio, US; & JP-A-57 96352 (Ishihara Sangyo Kaisha Ltd.) Jun. 15, 1982.
Chemical Abstracts vol. 104, No. 12, Mar. 24, 1986, p. 707, abstract No. 99283v, Columbus, Ohio, US; H. Harada et al.: "Preparation of titanium dioxide from titanium tetrachloride and its photocatalytic activity. Effect of calcination temperature, particle size and crystal contents on photocatalytic activity in methanol-water solution" & Res. Bull. Meisei Univ. Phys. Sci. Eng. 1985, vol. 21, pp. 45-53.
Chemical Abstracts vol. 104, No. 18, May 5, 1986, p. 99, abstract no. 150828f, Columbus, Ohio, US; N. N. Stremilova et al.: "Effect of water-soluble salts on the pigment properties of titanium dioxide" & Labkokras. Mater. Ikh Primen., 1985, vol. 6, pp. 25-27.
"Titanium", published by the Ronald Press Company, 1949, U.S.A., pp. 160-173.

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