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    • 1. 发明授权
    • Toner binder for electrophotography and toner for electrophotography
    • 电子照相用调色剂粘合剂和电子照相用调色剂
    • US06497983B2
    • 2002-12-24
    • US09974893
    • 2001-10-12
    • Tsuyoshi IwaKazuya SakataShoji KawasakiMasaaki Shin
    • Tsuyoshi IwaKazuya SakataShoji KawasakiMasaaki Shin
    • G03G9087
    • G03G9/08753G03G9/0821G03G9/08704G03G9/08711G03G9/08722G03G9/08791G03G9/08793G03G9/08795G03G9/08797
    • The present invention is aimed at providing a toner binder for electrophotography that is excellent in the fixing property, offset resistance, blocking property, grindability, durable developing property and the like to correspond to the high-speed movement of a copier. The purpose of the present invention could be achieved by a toner binder having the following features for electrophotography. That is, when the viscoelasticity of the toner binder is measured in the temperature range of 50 to 200 ° C. and at a heating rate of 2° C./min., the viscoelasticity curve in the temperature range of 100 to 200° C. showing the relationship between the storage modulus and temperature, in which curve the axis of ordinate is the logarithm (Pa) of storage modulus G′ and the axis of abscissa is temperature (° C.), has a concave in the temperature range of 140 to 180° C. and has a minimum value of storage modulus G′ at the bottom of the range, and this G′ 0 and storage modulus G′ 200 at 200° C. are G′ 0
    • 本发明的目的在于提供一种电子照相用调色剂粘合剂,其对应于复印机的高速移动而具有优异的定影性能,抗偏移性,粘合性,可磨性,耐久显影性等。 本发明可以通过具有以下电子照相特征的调色剂粘合剂来实现。 也就是说,当在50〜200℃的温度范围和2℃/分钟的加热速度下测定调色剂粘合剂的粘弹性时,在100〜200℃的温度范围内的粘弹性曲线 示出了储能模量和温度之间的关系,其中纵坐标轴为储能模量G'的对数(Pa)和横坐标轴为温度(℃)的曲线,其温度范围为 140〜180℃,并且在该范围的底部具有最小的储能模量G',在200℃下的G'0和储能模量G'200为G'0
    • 2. 发明授权
    • Toner composition and method for production thereof
    • 调色剂组合物及其制造方法
    • US06733942B2
    • 2004-05-11
    • US10129525
    • 2002-05-07
    • Yuji EmuraShoji KawasakiMasaaki ShinHiroshi Matsuoka
    • Yuji EmuraShoji KawasakiMasaaki ShinHiroshi Matsuoka
    • G03G9087
    • G03G9/08793C08L67/00G03G9/08755G03G9/08764G03G9/08768C08L67/02
    • The present invention relates to a toner composition for electrophotography, used for development of electrostatic image in electrophotography, electrostatic printing, etc., as well as to a process for producing such a toner composition. The toner composition of the present invention comprises a binder resin component [component (A)] and a coloring agent component [component (B)], wherein the binder resin component [component (A)] comprises a particular crosslinked aromatic polyester resin component [component (a-1)] and a particular linear aromatic polyester resin component [component (a-2)] and the proportions of the component (a-1) and the component (a-2) are 5 to 80% by weight [the component (a-1)] and 20 to 95% by weight [the component (a-2)] based on the total weight of the two components. The present invention can provide a toner composition for electrophotography, which is superior in grindability, wax dispersibility and mechanical durability, superior in blocking resistance and offset resistance, and superior in balance between fixing properties after development and development durability.
    • 本发明涉及用于电子照相,静电印刷等中的静电图像显影的电子照相用调色剂组合物,以及这种调色剂组合物的制备方法。本发明的调色剂组合物包含粘合剂树脂 组分[组分(A)]和着色剂组分[组分(B)],其中粘合剂树脂组分[组分(A)]包含特定的交联芳族聚酯树脂组分[组分(a-1)]] 芳香族聚酯树脂组分[组分(a-2)]和组分(a-1)和组分(a-2)的比例为5-80重量%[组分(a-1)]和20至 95重量%[组分(a-2)]。本发明可提供一种电子照相用调色剂组合物,其研磨性,蜡分散性和机械耐久性优异,抗粘连性优异 和 抗剥离性,显影稳定性和显影耐久性之间的平衡性优异。
    • 6. 发明授权
    • Toner composition for electrophotography
    • 电子照相用调色剂组合物
    • US5427883A
    • 1995-06-27
    • US343995
    • 1994-11-18
    • Akira MisawaKazuo HisamatsuKeiichi IshikawaKazuo HagiwaraMasaaki Shin
    • Akira MisawaKazuo HisamatsuKeiichi IshikawaKazuo HagiwaraMasaaki Shin
    • C08G18/42G03G9/087
    • C08G18/4255G03G9/08764Y10S430/105
    • The present invention provides a toner composition mainly comprising a binder resin (D) which contains at least 20% by weight of an urethane-modified polyester resin (C) obtained by reacting a polyester resin (A) with an isocyanate compound (B) and whose gel fraction ranges from 2 to 75% by weight. The toner composition exhibits good melting properties upon heating suitable for fast reproduction such as a low lower limit of the fixing temperature and a wide range for permitted fixing temperature and is further excellent in resistance to blocking, resistance to carrier contamination and image-forming properties. The binder resin as the main component of the toner composition can be prepared according to a method comprising the step of continuously adding an isocyanate compound (B) to a polyester resin (A) in an equivalent ratio, NCO/OH, of the amount of the NCO groups of the isocyanate compound (B) to that of OH groups of the polyester resin (A) ranging from 0.3 to 1.00 with kneading to react them, in a kneading means having a built-in screw.
    • 本发明提供一种主要包含粘合剂树脂(D)的调色剂组合物,其含有至少20重量%的通过使聚酯树脂(A)与异氰酸酯化合物(B)反应得到的氨基甲酸酯改性聚酯树脂(C)和 其凝胶分数为2至75重量%。 调色剂组合物在适合快速再生的加热时显示出良好的熔融性能,例如定影温度的低下限和允许定影温度的宽范围,并且具有更好的耐粘连性,耐载体污染和成像性能。 作为调色剂组合物的主要成分的粘合剂树脂可以根据以下方法制备:将异氰酸酯化合物(B)以等于NCO / OH的比例连续加入到聚酯树脂(A)中的方法, 异氰酸酯化合物(B)的NCO基与聚酯树脂(A)的OH基的NCO基团在0.3〜1.00的范围内混炼,在具有内置螺杆的捏合装置中进行反应。
    • 7. 发明授权
    • Resins for toner of electrophotography and method for manufacturing the
same
    • 电子照相用调色剂用树脂及其制造方法
    • US5037715A
    • 1991-08-06
    • US535490
    • 1990-06-11
    • Kazuo HagiwaraAkira MisawaKazuo HisamatsuMasaaki Shin
    • Kazuo HagiwaraAkira MisawaKazuo HisamatsuMasaaki Shin
    • C08G18/42G03G9/087
    • C08G18/4202G03G9/08764
    • A resin for toner of electrophotography comprises a urethane-modified polyester resin (D) having a glass transition temperature ranging from 40.degree. to 75.degree. C., which is obtained by reacting a resin mixture composed of a polyester resin (A) having a number-averaging molecular weight of 1,000 to 15,000 and a hydroxyl value of 10 to 100 and a polyester resin (B) having a number-average molecular weight ranging from 1,000 to 5,000 and a sum of acid value and hydroxyl value of less than 10, in a weight ratio of (A)/(B) ranging from 20:80 to 60:40, with 0.3 to 0.99 molar equivalent of an isocyanate compound (C) per one molar equivalent of hydroxyl group of the polyester resin (A).The resin for toner is excellent in grindability and storage stability and it provides toners for electrophotography having good anti-blocking properties and good fixing properties whereby good images free of fogging can be obtained.
    • 用于电子照相调色剂的树脂包括玻璃化转变温度为40-75℃的聚氨酯改性聚酯树脂(D),其通过使具有数量的聚酯树脂(A)组成的树脂混合物 分子量为1000〜15000,羟基值为10〜100,数均分子量为1,000〜5000,酸值与羟值的和小于10的聚酯树脂(B)在 (A)/(B)的重量比为20:80至60:40,每摩尔当量的聚酯树脂(A)的羟基为0.3至0.99摩尔当量的异氰酸酯化合物(C)。 用于调色剂的树脂具有优异的可研磨性和储存稳定性,并且提供了具有良好的防粘连性和良好的定影性的电子照相用调色剂,从而可以获得没有起雾的良好图像。
    • 8. 发明授权
    • Electrophotographic toner and production process thereof
    • 电子照相调色剂及其制备方法
    • US5370958A
    • 1994-12-06
    • US10871
    • 1993-01-29
    • Masaaki ShinKenji UchiyamaYasuo Okada
    • Masaaki ShinKenji UchiyamaYasuo Okada
    • G03G9/087
    • G03G9/08791G03G9/08793G03G9/08795
    • An object of the present invention is to provide an electrophotographic toner for high-speed copying machines having a high hot-roll speed and capable of fixing a toner at lower temperatures. The toner according to the present invention comprises a vinyl resin which has a wide molecular-weight distribution (Mn:1,000-20,000, Mw: 50,000-2,000,000), a glass transition temperature (Tg) of 40.degree.-75.degree. C. and a low acid value (AV:1-10); and a glycidyl compound in an amount sufficient to provide 0.05-1.0 equivalent of glycidyl groups per equivalent of COOH groups in the vinyl resin. It assures well-balanced fixing property, offset resistance and blocking resistance. In particular, it exhibits a remarkable effect in improving offset resistance and also in grindability during the production of the toner.
    • 本发明的目的是提供一种具有高热轧速度并且能够在较低温度下固定调色剂的高速复印机的电子照相调色剂。 根据本发明的调色剂包括具有宽分子量分布(Mn:1,000-20,000,Mw:50,000-2,000,000),玻璃化转变温度(Tg)为40-75℃的乙烯基树脂和 低酸值(AV:1-10); 和足以在乙烯基树脂中每当量COOH基团提供0.05-1.0当量缩水甘油基的量的缩水甘油基化合物。 它确保平衡的定影性能,抗偏移性和抗粘连性。 特别是,在调色剂生产过程中,其抗粘着性以及可磨性的改善表现出显着的效果。