Industrial Technology Research Institute

Jia-Ming Liu

Kuo-Tung Huang

Te-Yi Chang

Ming-Tzung Wu

Po-Yen Lu

Kuei-Fei Teng

Rong-Ming Ke

Chiunn-Wen Chen

Cheng-Chi Wang

Mei-Tyz Peng

Chiang-Yun Lee

Ying-Chuan Wang

Feng-Wen Yeng

Huan-Lurn Hsieh

Shih-Ying Shen

A reactive silicon dioxide compound, wherein the formula of the reactive silicon dioxide compound is shown as Formula (I): where each R is a reactive group shown as Formula (II) or Formula (III), independently: and where R, Rand Rinclude H or CH, independently, nis an integer of about 1-6 and nis an integer of about 0-4. An optical protective film containing the reactive silicon dioxide compound is also provided.

Reactive silicon dioxide compound and optical protective film containing the same

Organic hole transporting and blue light emitting electroluminescent materials

A peroxide-modified titanyl phthalocyanine for use in preparing charge generating layer of a photoreceptor is disclosed. The peroxide-modified titanyl phthalocyanine is obtained by subjecting titanyl phthalocyanine to a peroxide-induced complexation-mediated crystal transformation at a low temperature. The peroxide-modified titanyl phthalocyanine is characterized by having Bragg diffraction angles of 7.3, 9.4, 14.0, 24.1, 25.7, 27.2 and 28.5 degrees, and vibrational absorption resonances at 1486 cm (superscript: &minus;1), 1420 cm (superscript: &minus;1), 1134 cm (superscript: &minus;1), 1078 cm (superscript: &minus;1), 966 cm (superscript: &minus;1), 900 cm (superscript: &minus;1), 762 cm (superscript: &minus;1) and 736 cm (superscript: &minus;1). The photoreceptor exhibits excellent photosensitivity at wavelengths in the near-infrared range and has a unique crystal form, especially the peroxide-modified titanyl phthalocyanine shows a higher distinct absorption peak at the wavelength of 780 nm.

Titanyl phthalocyanine, method for production thereof and electrophotographic photoreceptor containing the same

Organic photoreceptors of the functionally separated laminated type containing a hydrazone compound in the charge transport layer thereof which provides low crystallinity and improved sensitivity, durability, and reproducibility. The hydrazone compound disclosed in the present invention is presented by the following general formula (I): ##STR1## wherein R.sub.1 represents a substituted or unsubstituted C.sub.1 -C.sub.4 alkyl group, R.sub.2 represents a hydrogen atom, or an alkyl or alkoxy group; n is an integer of either 1 or 2; R.sub.3 and R.sub.4 each independently represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted aralkyl group; or alternatively R.sub.3 and R.sub.4 form a substituted or unsubstituted aromatic heterocyclic ring residue cojointly with the nitrogen atom to which they are bonded.

Hydrazone compounds as charge transport material in photoreceptors

A new organophotoconductor comprising a conductive substrate, a charge generation layer and a charge transport layer wherein the charge generation layer comprises a bisazo compound and a squarylium compound as the charge generation material. The organophotoconductor exhibits high sensitivity, low residual potential and improved durability and reproducibility.

Photoconductor comprising bisazo and squarylium pigments as the charge

Growing community of inventors

Hsinchu, Taiwan

Jia-Ming Liu