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1. 发明授权

US5389483A Electrophotographic toner having two ethylene polymers 失效
标题翻译：具有两个乙烯聚合物的电子照相调色剂
公开(公告)号：US5389483A
公开(公告)日：1995-02-14
申请号：US74158
申请日：1993-06-09
申请人： Shoji Kawasaki , Nobuhiro Hirayama , Kenji Uchiyama , Hisatomo Sato , Hiromi Akiyama
发明人： Shoji Kawasaki , Nobuhiro Hirayama , Kenji Uchiyama , Hisatomo Sato , Hiromi Akiyama
IPC分类号： G03G9/087
CPC分类号： G03G9/08795
摘要： The present invention provides electrophotographic toner which comprises as a principal component a mixture of 20-80 parts by weight of a first ethylene polymer (X) whose weight-average molecular weight (Mw) is at least 200,000 and a second ethylene polymer (Y) whose Z average molecular weight/number-average molecular weight (Mz/Mn) is at least 6 and Mw is not greater than 50,000. According to this invention, electrophotographic toner of wide non-offset range can be obtained and, images of stable quality in a low heat quantity, which have not been attained by the prior art, can be obtained.
摘要翻译：本发明提供电子照相调色剂，其以主要组分为20-80重量份的重均分子量（Mw）至少为200,000的第一乙烯聚合物（X）和第二乙烯聚合物（Y）的混合物，其Z平均分子量/数均分子量（Mz / Mn）为6以上，Mw为5万以下。根据本发明，可以获得宽非偏移范围的电子照相调色剂，并且可以获得现有技术尚未达到的低热量质量稳定的图像。

2. 发明授权

US5230978A Electrophotographic toner composition 失效
标题翻译：电子显微镜组合物
公开(公告)号：US5230978A
公开(公告)日：1993-07-27
申请号：US741537
申请日：1991-08-14
申请人： Shoji Kawasaki , Nobuhiro Hirayama , Kenji Uchiyama , Hisatomo Sato , Hiromi Akiyama
发明人： Shoji Kawasaki , Nobuhiro Hirayama , Kenji Uchiyama , Hisatomo Sato , Hiromi Akiyama
IPC分类号： G03G9/087
CPC分类号： G03G9/08797 , G03G9/08702 , Y10S430/105
摘要： Disclosed herein is an electrophotographic toner composition produced by using a low-melt-viscosity and high-strength resin. The present invention provides a toner which fixes at low heat and has high strength and therefore, is suitable for high-speed copying machines and lower-heat copying machines. The resultant benefits of the present invention are that the lowest limit of the fixing temperature is low, non-offset range is wide and picture properties are good. The electrophotographic toner composition can, therefore, provide stable pictures even when fixed at low heat.

3. 发明授权

US5573881A Toner composition for electrophotography 失效
标题翻译：电子照相用调色剂组合物
公开(公告)号：US5573881A
公开(公告)日：1996-11-12
申请号：US476042
申请日：1995-06-07
申请人： Shoji Kawasaki , Nobuhiro Hirayama , Kenji Uchiyama , Hisatomo Sato , Hiromi Akiyama , Katuo Uramoto
发明人： Shoji Kawasaki , Nobuhiro Hirayama , Kenji Uchiyama , Hisatomo Sato , Hiromi Akiyama , Katuo Uramoto
IPC分类号： G03G9/087 , G03G9/00
CPC分类号： G03G9/08788 , G03G9/08706
摘要： A toner composition for electrophotography comprises at least a binder, a coloring agent and optionally a low molecular weight wax in an amount ranging from 0.5 to 20 parts by weight per 100 parts by weight of the binder as essential components wherein the binder comprises, as a principal component, a resin mixture prepared by heating a resin solution comprising a styrene resin and a block copolymer which comprises blocks derived from at least one member selected from ethylenic hydrocarbons and conjugated diene hydrocarbons and blocks derived from styrene and/or a hydrogenated product thereof in an amount ranging from 0.1 to 20 parts by weight per 100 parts by weight of the styrene resin to remove the solvent. The low molecular weight wax may be included in the binder.
摘要翻译：用于电子照相术的调色剂组合物至少包含粘合剂，着色剂和任选的低分子量蜡，其量为每100重量份粘合剂作为必需组分的0.5至20重量份，其中粘合剂包含作为主要组分，通过加热包含苯乙烯树脂和嵌段共聚物的树脂溶液制备的树脂混合物，所述树脂溶液包含衍生自选自烯烃和共轭二烯烃中的至少一种的嵌段和由苯乙烯衍生的嵌段和/或其氢化产物的嵌段共聚物相对于100重量份苯乙烯树脂为0.1〜20重量份，除去溶剂。低分子量蜡可以包括在粘合剂中。

4. 发明授权

US5266434A Electrophotographic toner composition 失效
标题翻译：电子照相色调剂组成
公开(公告)号：US5266434A
公开(公告)日：1993-11-30
申请号：US730900
申请日：1991-08-06
申请人： Nobuhiro Hirayama , Kenji Uchiyama , Shoji Kawasaki , Hisatomo Sato , Hiromi Akiyama
发明人： Nobuhiro Hirayama , Kenji Uchiyama , Shoji Kawasaki , Hisatomo Sato , Hiromi Akiyama
IPC分类号： G03G9/087 , B03G9/08
CPC分类号： G03G9/08795 , Y10S430/105
摘要： The present invention provides an electrophotographic toner composition comprising a binder and a colorant. At least 70 wt. % of the binder are soluble in THF, the number average molecular weight (Mn) and Z average molecular weight (Mz) of the THF-soluble portion of the binder as measured using THF are 2,000-15,000 and at least 400,000, respectively. The particle size of the binder has been controlled so that D.sub.75 is not greater than 2.5 mm, D.sub.25 not smaller than 0.15 mm and D.sub.75 /D.sub.25 at least 1.5. The toner composition does not have variations from one lot to another. The quantity of electricity to be charged during a copying operation changes little. The picture quality can be maintained constant even during a long-time copying operation.

5. 发明授权

US5502110A Resin composition for electrophotographic toner 失效
标题翻译：用于电子照相调色剂的树脂组合物
公开(公告)号：US5502110A
公开(公告)日：1996-03-26
申请号：US52831
申请日：1993-04-27
申请人： Katsuru Matsumoto , Nobuhiro Hirayama , Kenji Uchiyama , Shoji Kawasaki , Tamami Fukui , Katsuo Uramoto
发明人： Katsuru Matsumoto , Nobuhiro Hirayama , Kenji Uchiyama , Shoji Kawasaki , Tamami Fukui , Katsuo Uramoto
IPC分类号： G03G9/087 , G03G9/097 , C08L33/04 , C08L25/04 , C08L25/14 , C08L33/24
CPC分类号： G03G9/08795 , G03G9/08702 , G03G9/08793 , G03G9/09733 , G03G9/08788
摘要： A resin composition for an electrophotographic toner is here disclosed which comprises an ethylene series high polymer (Y) and an ethylene series polymer (X) prepared from 100 parts of a bifunctional ethylene series unsaturated monomer and 0.01-10 parts by weight of a substance having three or more peroxide groups in the molecule and/or a substance having one or more unsaturated functional groups and one or more peroxide groups in the molecule, Mw/Mb (Mw is weight-average molecular weight, and Mb is weight-average molecular weight between crosslinking points) of said polymer (X) being from 2 to 99, Mw of said polymer (X) being 50,000 or less. This resin composition is excellent in the balance of various physical properties required for the toner, and particularly, it is excellent in offset resistance and toner strength.
摘要翻译：这里公开了一种用于电子照相调色剂的树脂组合物，其包含由100份双官能乙烯系不饱和单体制备的乙烯系高分子（Y）和乙烯系聚合物（X），和0.01-10重量份具有分子中的三个或更多个过氧化物基团和/或分子中具有一个或多个不饱和官能团和一个或多个过氧化物基团的物质，Mw / Mb（Mw是重均分子量，Mb是重均分子量在所述聚合物（X）的交联点之间）为2〜99，所述聚合物（X）的Mw为50,000以下。该树脂组合物在调色剂所需的各种物理性能的平衡方面是优异的，特别是其耐偏移性和调色剂强度优异。

6. 发明授权

US5084368A Electrophotographic toner 失效
标题翻译：电子照相机
公开(公告)号：US5084368A
公开(公告)日：1992-01-28
申请号：US320239
申请日：1989-02-24
申请人： Nobuhiro Hirayama , Masaaki Shin , Shoji Kawasaki , Akira Misawa , Akio Fujiwara , Kenji Uchiyama
发明人： Nobuhiro Hirayama , Masaaki Shin , Shoji Kawasaki , Akira Misawa , Akio Fujiwara , Kenji Uchiyama
IPC分类号： G03G9/087
CPC分类号： G03G9/08795 , Y10S430/105
摘要： This invention discloses electrophotogrpahic toners and the methods for their preparation. The electrophotographic toners contain resin and coloring agents as primary components. The resin is a non-crosslinked polymer of vinyl monomers or its mixtures, and has a number average molecular weight (Mn) of 2,000-15,000, a Z average molecular weight (Mz) of not less than 400,000 and Mz/Mn of 50-600. The electrophotographic toners exert an excellent fixing ability at high duplication speed or at lower temperatures.
摘要翻译： PCT No.PCT / JP87 / 00719 Sec。 371日期1989年2月24日 102（e）日期1989年2月24日PCT提交1987年9月30日PCT公布。出版物WO89 / 00718 日本1989年1月26日。本发明公开了电子白板调色剂及其制备方法。电子照相色调剂含有树脂和着色剂作为主要成分。树脂是乙烯基单体或其混合物的非交联聚合物，其数均分子量（Mn）为2,000-15,000，Z平均分子量（Mz）不小于400,000，Mz / Mn为50- 600。电子照相色调剂在高复制速度或较低温度下具有优异的定影能力。

7. 发明授权

US5468585A Resin composition for use in an electrophotographic toner 失效
标题翻译：用于电子照相调色剂的树脂组合物
公开(公告)号：US5468585A
公开(公告)日：1995-11-21
申请号：US363267
申请日：1994-12-23
申请人： Katsuru Matsumoto , Nobuhiro Hirayama , Shoji Kawasaki , Kenji Uchiyama , Katsuo Uramoto , Tamami Fukui
发明人： Katsuru Matsumoto , Nobuhiro Hirayama , Shoji Kawasaki , Kenji Uchiyama , Katsuo Uramoto , Tamami Fukui
IPC分类号： G03G9/087 , G03G9/097
CPC分类号： G03G9/08711 , G03G9/08706 , G03G9/08733 , G03G9/08795
摘要： A resin composition for use in an electrophotographic toner which comprises an ethylenic polymer (L) having a M.sub.w of not greater than 20,000 and an acid value of 2 to 100 mg KOH/g, and an ethylenic polymer (H) having a M.sub.w of not less than 150,000, a M.sub.w /M.sub.n ratio of not less than 5.0 and a time constant for triboelectric charging (.tau.) of 1.2 to 25, the ethylenic polymers (L) and (H) being present in a weight ratio ranging from 15:85 to 85:15. This resin composition can improve the triboelectric charging properties of the toner.
摘要翻译：一种用于电子照相调色剂的树脂组合物，其包含Mw不大于20,000并且酸值为2至100mg KOH / g的乙烯性聚合物（L）和Mw不为的乙烯类聚合物（H）小于150,000，Mw / Mn比不小于5.0，摩擦带电时间常数（τ）为1.2〜25，乙烯类聚合物（L）和（H）的重量比为15:85 到85:15。该树脂组合物可以提高调色剂的摩擦带电性能。

8. 发明授权

US5362595A Electrophotographic toner production process 失效
标题翻译：电子照相调色剂生产工艺
公开(公告)号：US5362595A
公开(公告)日：1994-11-08
申请号：US966570
申请日：1992-10-26
申请人： Nobuhiro Hirayama , Masaaki Shin , Shoji Kawasaki , Akira Misawa , Akio Fujiwara , Kenji Uchiyama
发明人： Nobuhiro Hirayama , Masaaki Shin , Shoji Kawasaki , Akira Misawa , Akio Fujiwara , Kenji Uchiyama
IPC分类号： G03G9/087
CPC分类号： G03G9/08795 , Y10S430/105
摘要： This invention discloses electrophotographic toners and the methods for their preparation. The electrophotographic toners contain resin and coloring agents as primary components. The resin is a non-crosslinked polymer of vinyl monomers or its mixtures, and has a number average molecular weight (Mn) of 2,000-15,000, a Z average molecular weight (Mz) of not less than 400,000 and Mz/Mn of 50-600. The electrophotographic toners exert an excellent fixing ability at high duplication speed or at lower temperatures.
摘要翻译：本发明公开了电子照相色调剂及其制备方法。电子照相色调剂含有树脂和着色剂作为主要成分。树脂是乙烯基单体或其混合物的非交联聚合物，其数均分子量（Mn）为2,000-15,000，Z平均分子量（Mz）不小于400,000，Mz / Mn为50- 600。电子照相色调剂在高复制速度或较低温度下具有优异的定影能力。

9. 发明授权

US6011119A Resin composition for electrophotographic toner, and toner 失效
标题翻译：用于电子照相调色剂的树脂组合物和调色剂
公开(公告)号：US6011119A
公开(公告)日：2000-01-04
申请号：US684195
申请日：1996-07-19
申请人： Katsuru Matsumoto , Nobuhiro Hirayama , Eishi Tanaka , Junko Tobita
发明人： Katsuru Matsumoto , Nobuhiro Hirayama , Eishi Tanaka , Junko Tobita
IPC分类号： G03G9/087 , C08L33/02 , C08L33/08 , C08L33/10
CPC分类号： G03G9/08733 , G03G9/08702 , G03G9/08704 , G03G9/08728 , Y10S430/105
摘要： A resin composition is provided for an electro-photographic toner. The composition comprises 5 to 95 parts by weight of a high molecular weight vinyl copolymer polymer and 95 to 5 parts by weight of a low molecular weight vinyl copolymer. The former ethylene polymer has a weight average molecular weight (Mw) of from 200,000 to 1,000,000 and a ratio (Mw/Mn) of the weight average molecular weight (Mw) to a number average molecular weight (Mn) of from 8 to 300, and the latter vinyl copolymer has a weight average molecular weight of from 3,000 to 20,000. At least one of the former and latter vinyl copolymer, preferably, the former vinyl copolymer is an ethylene polymer which has been obtained by conducting polymerization in the presence of a monomer having an ionization potential of from 10.0 to 15.0 eV and a difference of from 9.0 to 15.0 eV in level between a highest occupied molecular orbital (HOMO) and a lowest unoccupied molecular orbital (LUMO), both determined by computational chemistry. The resin composition shows excellent charging characteristics even without a charge control agent or with a charge control agent in a reduced amount. A toner containing the resin composition is also provided.
摘要翻译：为电子照相用调色剂提供树脂组合物。该组合物包含5-95重量份的高分子量乙烯基共聚物聚合物和95-5重量份的低分子量乙烯基共聚物。前述乙烯聚合物的重均分子量（Mw）为200,000〜1,000,000，重均分子量（Mw）与数均分子量（Mn）的比（Mw / Mn）为8〜300，后者的乙烯基共聚物的重均分子量为3000〜20,000。前者和后一种乙烯基共聚物中的至少一种，优选前一种乙烯基共聚物是通过在具有10.0至15.0eV的电离电位和9.0的差异的单体存在下进行聚合而获得的乙烯聚合物在最高占据分子轨道（HOMO）和最低未占分子轨道（LUMO）之间的水平上的15.0eV，都由计算化学确定。即使没有电荷控制剂或电荷控制剂，树脂组合物也显示出优异的充电特性。还提供了含有树脂组合物的调色剂。

10. 发明授权

US5658999A Syndiotactic polypropylene wax, production process thereof, and heating roll fixing-type toner composition making use of the wax 失效
公开(公告)号：US5658999A
公开(公告)日：1997-08-19
申请号：US543823
申请日：1995-10-16
申请人： Norihide Inoue , Masahiro Kouno , Yoshiho Sonobe , Kazumi Mizutani , Tetsunosuke Shiomura , Nobuhiro Hirayama
发明人： Norihide Inoue , Masahiro Kouno , Yoshiho Sonobe , Kazumi Mizutani , Tetsunosuke Shiomura , Nobuhiro Hirayama
IPC分类号： C08F4/659 , C08F4/6592 , C08F110/06
CPC分类号： C08F110/06 , C08F4/65916 , C08F4/65912 , C08F4/65922 , C08F4/65927 , Y10T436/148888 , Y10T436/172307
摘要： Described herein are propylene waxes and a production process thereof. The waxes are each produced by polymerizing propylene in a reaction vessel while using a solid catalyst in the presence or absence of an organoaluminum compound. A hydrogen partial pressure of a gas phase in the reaction vessel, said gas phase being formed of the propylene and hydrogen, is maintained at 10% or higher. The solid catalyst is formed of a transition metal compound or a reaction product between the transition metal compound and an organometallic compound, an aluminoxane and a fine particulate carrier. Also described herein is a heating-roll fixing type toner composition composed essentially of a binder resin or a binder resin composition, a colorant and, as a releasing agent, the wax.

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