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    • 3. 发明授权
    • Toner binder and toner composition
    • 调色剂粘合剂和调色剂组成
    • US09052623B2
    • 2015-06-09
    • US13878219
    • 2011-10-06
    • Takashi AkutagawaMasakazu IwataMasaru HondaTomoyuki Ariyoshi
    • Takashi AkutagawaMasakazu IwataMasaru HondaTomoyuki Ariyoshi
    • G03G9/087
    • G03G9/08755G03G9/0806G03G9/08764G03G9/08788G03G9/08795G03G9/08797
    • Provided is a toner binder which combines excellent low-temperature fixing properties and excellent hot-offset resistance (namely which permits a wide fixing-temperature range) and which exhibits excellent storage stability. The toner binder comprises (A) a polyester resin, (B) a specific crystalline resin and, if necessary, (C) a non-crystalline linear polyester resin. The polyester resin (A) comprises a carboxylic acid component (x) and a polyol component (y) as the essential constituent units, said component (x) comprising two or more kinds of dicarboxylic acids (x1) selected from among aromatic dicarboxylic acids and ester-forming derivatives thereof in a total amount of 80 mol % or more and further containing an at least trivalent polycarboxylic acid (x2) as another essential component, and said component (y) comprising a C2-10 aliphatic diol (y1) in an amount of 50 mol % or more. Further, the polyester resin (A) exhibits a storage modulus at 150° C. [G′(150)] of 2000 Pa or more, and the [G′(150)] and [G′(180)] (storage modulus at 180° C.) of the resin (A) satisfy a specific relationship.
    • 提供了一种调色剂粘合剂,其结合了优异的低温定影性能和优异的耐热粘合性(即允许宽的定影温度范围),并且表现出优异的储存稳定性。 调色剂粘合剂包含(A)聚酯树脂,(B)特定结晶树脂,如果需要,(C)非结晶线性聚酯树脂。 聚酯树脂(A)含有羧酸成分(x)和多元醇成分(y)作为基本构成单元,所述成分(x)含有选自芳香族二羧酸和芳香族二羧酸中的2种以上的二羧酸(x1) 其成酯衍生物的总量为80摩尔%以上,并且还含有至少三价多元羧酸(x2)作为另外的主要成分,所述成分(y)包含C 2-10脂族二醇(y1) 量为50摩尔%以上。 此外,聚酯树脂(A)在150℃下具有储能模量[G'(150)]为2000Pa以上,[G'(150)]和[G'(180)](储能模量 树脂(A)在180℃下)满足特定的关系。
    • 4. 发明申请
    • TONER BINDER AND TONER COMPOSITION
    • 调色剂和调色剂组合物
    • US20130273469A1
    • 2013-10-17
    • US13878219
    • 2011-10-06
    • Takashi AkutagawaMasakazu IwataMasaru HondaTomoyuki Ariyoshi
    • Takashi AkutagawaMasakazu IwataMasaru HondaTomoyuki Ariyoshi
    • G03G9/087
    • G03G9/08755G03G9/0806G03G9/08764G03G9/08788G03G9/08795G03G9/08797
    • Provided is a toner binder which combines excellent low-temperature fixing properties and excellent hot-offset resistance (namely which permits a wide fixing-temperature range) and which exhibits excellent storage stability. The toner binder comprises (A) a polyester resin, (B) a specific crystalline resin and, if necessary, (C) a non-crystalline linear polyester resin. The polyester resin (A) comprises a carboxylic acid component (x) and a polyol component (y) as the essential constituent units, said component (x) comprising two or more kinds of dicarboxylic acids (x1) selected from among aromatic dicarboxylic acids and ester-forming derivatives thereof in a total amount of 80 mol % or more and further containing an at least trivalent polycarboxylic acid (x2) as another essential component, and said component (y) comprising a C2-10 aliphatic diol (y1) in an amount of 50 mol % or more. Further, the polyester resin (A) exhibits a storage modulus at 150° C. [G′(150)] of 2000 Pa or more, and the [G′(150)] and [G′(180)] (storage modulus at 180° C.) of the resin (A) satisfy a specific relationship.
    • 提供了一种调色剂粘合剂,其结合了优异的低温定影性能和优异的耐热粘合性(即允许宽的定影温度范围),并且表现出优异的储存稳定性。 调色剂粘合剂包含(A)聚酯树脂,(B)特定结晶树脂,如果需要,(C)非结晶线性聚酯树脂。 聚酯树脂(A)含有羧酸成分(x)和多元醇成分(y)作为基本构成单元,所述成分(x)含有选自芳香族二羧酸和芳香族二羧酸中的2种以上的二羧酸(x1) 其成酯衍生物的总量为80摩尔%以上,并且还含有至少三价多元羧酸(x2)作为另外的主要成分,所述成分(y)包含C 2-10脂族二醇(y1) 量为50摩尔%以上。 此外,聚酯树脂(A)在150℃下具有储能模量[G'(150)]为2000Pa以上,[G'(150)]和[G'(180)](储能模量 树脂(A)在180℃下)满足特定的关系。
    • 6. 发明授权
    • Toner and method for image formation
    • 调色剂和成像方法
    • US06461782B1
    • 2002-10-08
    • US09623740
    • 2000-11-22
    • Shinya SasadaHideo NakanishiMunekazu SatakeNobuaki KameiMasakazu Iwata
    • Shinya SasadaHideo NakanishiMunekazu SatakeNobuaki KameiMasakazu Iwata
    • G03G9087
    • G03G9/08791G03G9/08793G03G9/08795G03G9/08797G03G13/20
    • A toner with a glass transition point (Tg) before curing of not lower than 35° C., said toner comprising: a toner binder composed of a resin (I) selected from the group consisting of a cation-polymerizable thermoplastic resin (A) and a radical-polymerizable thermoplastic resin (B); and a colorant. The resins making up the toner binder are polymerizable ones and are cured in fixing the image on the support so that the number average molecular weight can be increased after the fixing step. That is, a toner binder with a low number average molecular weight can be used, and fixed at a low temperature and with low energy. Because of the low number average molecular weight, the toner is low in viscosity and excellent in gloss development and can produce high-quality multi-color images. Since the toner polymerizes and cures to increase in number average molecular weight while fixing, the hot offset is hardly caused, with a high fixing strength and an excellent wear resistance developed.
    • 一种固化前的玻璃化转变温度(Tg)不低于35℃的调色剂,所述调色剂包括:由选自阳离子聚合性热塑性树脂(A)的树脂(I)组成的调色剂粘合剂, 和可自由基聚合的热塑性树脂(B); 和着色剂。 构成调色剂粘合剂的树脂是可聚合的树脂,并且在将图像固定在载体上时固化,使得在固定步骤之后可以增加数均分子量。 也就是说,可以使用具有低数均分子量的调色剂粘合剂,并且在低温和低能量下固定。 由于数均分子量低,调色剂的粘度低,光泽发展优异,可以制造出高质量的多色图像。 由于调色剂在固定时聚合和固化以增加数均分子量,所以难以产生热偏移,具有高定影强度和优异的耐磨性。
    • 7. 发明授权
    • Nonaqueous dispersion of resin particles
    • 树脂颗粒的非水分散体
    • US09090748B2
    • 2015-07-28
    • US13641236
    • 2011-03-24
    • Masakazu IwataKouji Oota
    • Masakazu IwataKouji Oota
    • C08L75/14C08L33/22C09D133/22C09D11/10C09D175/14G03G9/13G03G9/12C08J3/11G03G9/125
    • C08J3/11G03G9/125G03G9/13G03G9/131
    • Provided is a nonaqueous dispersion of resin particles, in which the resin particles have uniform particle diameters and shapes and which exhibits excellent fixing properties, particularly when used as a liquid electrophotographic developer. More specifically, provided is a nonaqueous dispersion (X) in which resin particles (C) are dispersed in a nonhydrophilic organic solvent (L) that exhibits a relative permittivity of 1 to 4 at 20° C., the resin particles (C) being core-shell type resin particles each of which comprise a resin particle (B) that contains a resin (b) and fine particles (A) that contain a resin (a) and that either adhere to the surface of the resin particle (B) or form a film on the surface of the resin particle (B), wherein the solubility of (a) in (L) at 25° C. is 10 wt % or less relative to the weight of (a).
    • 提供一种树脂颗粒的非水分散体,其中树脂颗粒具有均匀的粒径和形状,并且表现出优异的定影性,特别是当用作液体电子照相显影剂时。 更具体地说,提供了在20℃下相对介电常数为1〜4的不亲水性有机溶剂(L)中分散有树脂粒子(C)的非水分散体(X),树脂粒子(C)为 核壳型树脂颗粒各自包含含有树脂(b)的树脂颗粒(B)和含有树脂(a)的细颗粒(A),并且粘附到树脂颗粒(B)的表面上, 或在树脂颗粒(B)的表面上形成膜,其中(a)在(L)中在25℃下的溶解度相对于(a)的重量为10重量%以下。
    • 9. 发明申请
    • NONAQUEOUS DISPERSION OF RESIN PARTICLES
    • 树脂颗粒的非质量分散
    • US20130034809A1
    • 2013-02-07
    • US13641236
    • 2011-03-24
    • Masakazu IwataKouji Oota
    • Masakazu IwataKouji Oota
    • C08L75/14C09D133/22G03G9/13C09D11/10G03G9/12C08L33/22C09D175/14
    • C08J3/11G03G9/125G03G9/13G03G9/131
    • Provided is a nonaqueous dispersion of resin particles, in which the resin particles have uniform particle diameters and shapes and which exhibits excellent fixing properties, particularly when used as a liquid electrophotographic developer. More specifically, provided is a nonaqueous dispersion (X) in which resin particles (C) are dispersed in a nonhydrophilic organic solvent (L) that exhibits a relative permittivity of 1 to 4 at 20° C., the resin particles (C) being core-shell type resin particles each of which comprise a resin particle (B) that contains a resin (b) and fine particles (A) that contain a resin (a) and that either adhere to the surface of the resin particle (B) or form a film on the surface of the resin particle (B), wherein the solubility of (a) in (L) at 25° C. is 10 wt % or less relative to the weight of (a).
    • 提供一种树脂颗粒的非水分散体,其中树脂颗粒具有均匀的粒径和形状,并且表现出优异的定影性,特别是当用作液体电子照相显影剂时。 更具体地说,提供了在20℃下相对介电常数为1〜4的不亲水性有机溶剂(L)中分散有树脂粒子(C)的非水分散体(X),树脂粒子(C)为 核壳型树脂颗粒各自包含含有树脂(b)的树脂颗粒(B)和含有树脂(a)的细颗粒(A),并且粘附到树脂颗粒(B)的表面上, 或在树脂颗粒(B)的表面上形成膜,其中(a)在(L)中在25℃下的溶解度相对于(a)的重量为10重量%以下。