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    • 33. 发明专利
    • JPS5927900B2 -
    • JPS5927900B2
    • 1984-07-09
    • JP1221979
    • 1979-02-07
    • Mita Industrial Co Ltd
    • IKEDA TOSHIMITSUPPONDA YOKO
    • G03G9/08G03G9/083G03G9/087
    • G03G9/0825G03G9/0836G03G9/0838Y10S430/104
    • A composite magnetic developer having a self-friction-chargeability is in the form of fixable magnetic particles having a particle size of 5 to 30 microns and comprising a finely divided magnetic material dispersed in a binder medium which shows an adhesiveness under application of heat and pressure, in which the fixable magnetic particles contain fine particles of a magnetic material embedded in the surface of the fixable magnetic particles in an amount of 1 to 10% by weight based on the fixable magnetic particles and fine particles of a magnetic material adhering to the surface of the fixable magnetic particles without being embedded therein in an amount of 1 to 20% by weight based on the fixable magnetic particles. This developer provides a sharp and clear transfer image having a high density without fogging or edge effects on a transfer sheet having a low electric resistance such as a plain paper. When this developer is used for development of electrostatic latent images, any particular charging operation need not be performed and any carrier need not be used. Even if this developer is used repeatedly for the copying operation, the composition is not substantially changed and good developing characteristics are retained.
    • 34. 发明专利
    • Pressure-fixable magnetic toner
    • 压力可固定磁铁
    • JPS59114547A
    • 1984-07-02
    • JP22543482
    • 1982-12-22
    • Hitachi Metals LtdMitsui Petrochem Ind Ltd
    • ASANAE MASUMINOGUCHI KOUJIITOI HIDEYUKIFUNAKOSHI KATSUMI
    • G03G9/08G03G9/087
    • G03G9/08704G03G9/08735Y10S430/104
    • PURPOSE: To obtain the titled toner having good fixability in low pressure and good storage stability at high temps. by using a polymer composed essentially of methyl-pentene-1 having a softening point not below a specified temp. and a compression yield value of a specified value or less.
      CONSTITUTION: A polymer composed essentially of methyl-pentene-1 having a ≥80°C softening point and ≤150kg/cm
      2 compression yield value, such as a homopolymer of 4-methyl-pentene-1 3-methyl-pentene-1 or a copolymer of them and other α-olefin, like ethylene, is used for a pressure-fixable magnetic toner composed essentially of at least a resin and a magnetic powder. The obtained pressure-fixable magnetic toner has good fixability in low pressure, and good storage stability at high temps., and it can be used for electrophotography a magnetic printing process, etc.
      COPYRIGHT: (C)1984,JPO&Japio
    • 目的:获得在低压下具有良好定影性且在高温下具有良好储存稳定性的标题调色剂。 通过使用基本上由不低于规定温度的软化点的甲基 - 戊烯-1组成的聚合物。 压缩屈服值为规定值以下。 构成:主要由具有> = 80℃软化点和<= 150kg / cm 2压缩屈服值的甲基 - 戊烯-1组成的聚合物,例如4-甲基 - 戊烯-1,3-甲基 - 戊烯-1或它们与其它α-烯烃(如乙烯)的共聚物用于基本上至少由树脂和磁性粉末组成的压力可固定的磁性调色剂。 所得到的压力可固定磁性调色剂在低压下具有良好的定影性,并且在高温下具有良好的储存稳定性,并且可用于电子照相磁性印刷工艺等。
    • 35. 发明专利
    • Magnetic color toner
    • 磁性色调剂
    • JPS58179846A
    • 1983-10-21
    • JP6285582
    • 1982-04-15
    • Canon Inc
    • IMAI EIICHIUCHIIDE HITOSHIMURAKAWA KAZUNORIUCHIYAMA MASAKIOCHI TOSHIYUKIURAWA MOTOOTAKAGI SEIICHIMIHASHI YASUO
    • G03G9/08G03G9/083G03G15/01
    • G03G9/0833Y10S430/104
    • PURPOSE: To obtain a red or sepia color magnetic toner superior in performances of developing, transferring, fixing, and cleaning, and capable of forming a sharp color image, by adding γ-Fe
      2 O
      3 partially converted into α-type.
      CONSTITUTION: Fe
      3 O
      4 obtd. by neutralizing iron sulfate or iron chloride with alkali, and thermally oxidizing it is further oxidized to obtain γ-Fe
      2 O
      3 contg. 1W 50wt% α-Fe
      2 O
      3 . 20W100pts.wt. magnetic powder consisting of ≥60wt% said γ-Fe
      2 O
      3 partially contg. α-type, and ≤40wt% Fe
      3 O
      4 or iron powder is added to 100pts.wt. binder resin such as polystyrene, and when needed, a redWbrown type pigment, a solid lubricant, a fixing aid, a fluidity giving agent, etc. are mixed with them, heat kneaded, pulverized, and classified. As a result, the obtained magnetic color toner is superior in durability, stability resistant to environmental change, and heat and light, and free from discoloration and fading for long time.
      COPYRIGHT: (C)1983,JPO&Japio
    • 目的:通过添加部分转化为α型的γ-Fe2O3,获得显影,转印,定影和清洁性能优异且能够形成清晰彩色图像的红色或棕褐色彩色磁性调色剂。 规定:Fe3O4 obtd。 通过用碱中和硫酸铁或氯化铁,并进行热氧化,进一步氧化,得到γ-Fe2O3。 1-50wt%的α-Fe2O3。 20-100pts.wt。 含有= 60wt%的γ-Fe 2 O 3的磁性粉末部分地不合适。 α型,并且<= 40wt%Fe 3 O 4或铁粉加入到100pts.wt。 粘合剂树脂如聚苯乙烯,并且当需要时,将红棕色颜料,固体润滑剂,定影助剂,流动性赋予剂等与它们混合,进行热捏合,粉碎和分级。 结果,得到的磁性色调剂的耐久性,耐环境变化的稳定性,耐热性和耐光性优异,长时间不变色和褪色。
    • 39. 发明专利
    • 碳粉用結合劑樹脂及碳粉
    • 碳粉用结合剂树脂及碳粉
    • TW200307194A
    • 2003-12-01
    • TW092114674
    • 2003-05-30
    • 三井化學股份有限公司 MITSUI CHEMICALS INC.
    • 寺內知哉宇於崎浩隆松岡洋史江村祐二武井宏之橋本浩伸
    • G03GC08G
    • G03G9/08755C08G18/4202C08G63/20Y10S430/104
    • 本發明基於提供一種低溫定影性、耐移行污染性和顯影耐久性均優良的碳粉用結合劑樹脂和碳粉之目的,研究發現了以下之碳粉用結合劑樹脂。本發明的碳粉用結合劑樹脂,其特徵在於,當中含有特定結構的四氫喃不溶性聚酯成分和特定結構的四氫喃可溶性聚酯成分。本發明的碳粉用結合劑樹脂因具有上述特定的結構,所以在低溫定影性和耐移行污染性優良,能夠實現近年來市場上高度要求的高速印刷。又,本發明的碳粉用結合劑樹脂,較佳係在蠟存在下進行反應和製造。所得的含蠟的碳粉用結合劑樹脂,可以提供一種能兼具良好低溫定影性和耐移行污染性,且粉碎性等也良好的碳粉。另外,由於能以PET回收品作原料,能以再利用對社會作出貢獻。
    • 本发明基于提供一种低温定影性、耐移行污染性和显影耐久性均优良的碳粉用结合剂树脂和碳粉之目的,研究发现了以下之碳粉用结合剂树脂。本发明的碳粉用结合剂树脂,其特征在于,当中含有特定结构的四氢喃不溶性聚酯成分和特定结构的四氢喃可溶性聚酯成分。本发明的碳粉用结合剂树脂因具有上述特定的结构,所以在低温定影性和耐移行污染性优良,能够实现近年来市场上高度要求的高速印刷。又,本发明的碳粉用结合剂树脂,较佳系在蜡存在下进行反应和制造。所得的含蜡的碳粉用结合剂树脂,可以提供一种能兼具良好低温定影性和耐移行污染性,且粉碎性等也良好的碳粉。另外,由于能以PET回收品作原料,能以再利用对社会作出贡献。