POLYARYLENE BLOCK COPOLYMER HAVING SULFONIC ACID GROUP AND USE THEREOF
申请人:YAMAKAWA Yoshitaka
公开号:US20120052412A1
公开(公告)日:2012-03-01
A polyarylene copolymer having a sulfonic acid group which has high proton conductivity and reduced swelling in hot water and reduced shrinkage in drying; a solid polymer electrolyte and a proton conductive membrane comprising the copolymer; and a membrane-electrode assembly using these.
The polyarylene block copolymer comprises a polymer segment (A) having a sulfonic acid group, and a polymer segment (B) having substantially no sulfonic acid group, the polymer segment (B) having substantially no sulfonic acid group comprising a structural unit represented by the following formula (1).
The present invention provides a dye that is excellent in solubility and excellent in heat resistance and a novel compound that is preferable for the dye, and specifically provides a yellow dye having a wavelength of maximum absorption in the region of 400 to 450 nm, and also provides a coloring (alkali-developable) photosensitive composition using the above-mentioned dye, and an optical filter using the above-mentioned coloring (alkali-developable) photosensitive composition, specifically a color filter that does not decrease luminance and thus is preferable for image display devices such as liquid crystal display panels. Specifically, a compound represented by the following general formula (1) is used as the dye. The content of the above-mentioned general formula (1) is as described in the description.
The present invention provides a dye that is excellent in solubility and excellent in heat resistance and a novel compound that is preferable for the dye, and specifically provides a yellow dye having a wavelength of maximum absorption in the region of 400 to 450 nm, and also provides a coloring (alkali-developable) photosensitive composition using the above-mentioned dye, and an optical filter using the above-mentioned coloring (alkali-developable) photosensitive composition, specifically a color filter that does not decrease luminance and thus is preferable for image display devices such as liquid crystal display panels. Specifically, a compound represented by the following general formula (1) is used as the dye. The content of the above-mentioned general formula (1) is as described in the description.
Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
申请人:CANON KABUSHIKI KAISHA
公开号:US10031430B2
公开(公告)日:2018-07-24
An electrophotographic photosensitive member including a surface layer containing a specific polyester resin is provided. The polyester resin contains specific structures.
提供了一种电致发光感光构件,包括含有特定聚酯树脂的表层。聚酯树脂含有特定结构。
Electrophotographic photoreceptor, and electrophotographic cartridge and image forming apparatus including same
申请人:Mitsubishi Chemical Corporation
公开号:US10884348B2
公开(公告)日:2021-01-05
The present invention aims to provide an electrophotographic photoreceptor which is excellent in abrasion resistance against practical load and excellent in initial electrical properties, preferably further excellent in adhesion between layers by containing a polyester resin excellent in abrasion resistance, which is an electrophotographic photoreceptor containing a photosensitive layer and a conductive support, the electrophotographic photoreceptor containing a polyester resin having a specific structure α with a number average molecular weight of 15,000 or less and containing a divalent phenol residue and a divalent carboxylic acid residue.