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专利信息
专利号:US-7432031-B2
优先权日:2005-03-22
标 题:Toner for electrostatic charge developing, production method thereof, developer for electrostatic charge developing using the same, and image forming method
发明人:MIZUTANI NORIYUKI; MAEHATA HIDEO; HAMANO HIROKAZU; TANAKA HIROYUKI; KITAGAWA SOICHIRO; IGUCHI MOEGI
权利人:FUJI XEROX CO LTD
摘要:A toner for electrostatic charge developing prepared by a production method including aggregating one or more kind of particles in a raw material dispersion including the particles to form aggregated particles, and coalescing the aggregated particles by heating. At least one kind of the particles is resin particles including an amorphous polyester resin synthesized by copolymerizing one or more polyvalent carboxylic acids and two or more polyhydric alcohols; at least one of the polyvalent carboxylic acids is polyvalent carboxylic acid having a sulfonic acid group; two of the polyhydric alcohols are an ethylene oxide adduct of bisphenol A and a propylene oxide adduct of bisphenol A; and the following equation is satisfied:n n10/90≦ BPA ( EO )/ BPA ( PO )≦90/10.n n In the equation, BPA(EO) represents a total mole amount of the ethylene oxide adduct of bisphenol A used in synthesis of the amorphous polyester resin, and BPA(PO) represents a total mole amount of the propylene oxide adduct of bisphenol A used in synthesis of the amorphous polyester resin.
专利号:US-5073449-A
优先权日:1985-04-15
标题:Magnetic recording medium and method for producing the same
发明人:NIIMI HIDEAKI; ISOE NOBORU; WAKAI KUNIO; MIZUMURA TETSUO
权利人:HITACHI MAXELL
摘要:A magnetic recording medium comprising a substrate and a ferromagnetic metal layer, wherein the ferromagnetic metal layer includes hydrated amorphous cobalt oxide, a X-ray photoelectron spectra which is characterized in that, in the Co 2p spectrum, a ratio of a peak height at 785.9±0.3 eV to that at 780.0±0.3 eV is 40/100 or less when a background (BG) line is drawn between lower energy side leading edge points of peaks at 780.0±0.3 eV (2p 3/2 ) and 795.6±0.3 eV (2p 1/2 ) and, in the O 1s spectrum, a ratio of a peak height at 529.3±0.4 eV to that at 530.8±0.4 eV is from 100:110 to 100:50 when a background line is drawn between the lower energy side leading edge point and the higher energy side leading edge point of a complex peak at 530.5±2.5 eV from which the peaks at 529.3±0.4 eV and 530.8±0.4 are derived by peak synthesis, which has good corrosion and wear resistance.
专利号:JP-2020040930-A
优先权日:2018-09-14
标 题:Synthesis method of silane coupling agent using selective one-end reaction