Process for producing toner through suspension polymerization
    2.
    发明授权
    Process for producing toner through suspension polymerization 失效
    通过悬浮聚合制备调色剂的方法

    公开(公告)号:US4845007A

    公开(公告)日:1989-07-04

    申请号:US945700

    申请日:1986-12-23

    IPC分类号: G03G9/08 G03G9/087 G03G9/097

    CPC分类号: G03G9/09716 G03G9/0806

    摘要: A dispersion stabilizer having a nitrogen-containing organic group and a water-soluble acidic substance are added to an aqueous medium. Into the aqueous medium, a monomer composition comprising at least a polymerizable monomer, an anionic polymer, a polymerization initiator and a colorant is added and dispersed therein into a prescribed particle size. The particles of the monomer composition are subjected to suspension polymerization. The resultant toner is caused to have a sharp particle size distribution and an improved anti-blocking property because of the combined effects of the dispersion stabilizer and the acidic substance contained in the aqueous medium and the anionic polymer contained in the monomer composition.

    摘要翻译: 将具有含氮有机基团和水溶性酸性物质的分散稳定剂加入水性介质中。 向水性介质中添加至少包含可聚合单体,阴离子聚合物,聚合引发剂和着色剂的单体组合物并分散到规定的粒径。 将单体组合物的颗粒进行悬浮聚合。 由于分散稳定剂和包含在水性介质中的酸性物质和单体组合物中所含的阴离子聚合物的组合效果,所得到的调色剂具有尖锐的粒度分布和改善的抗粘连性。

    Electrostatic imaging apparatus and facsimile apparatus employing toner
with low aldehyde content
    3.
    发明授权
    Electrostatic imaging apparatus and facsimile apparatus employing toner with low aldehyde content 失效
    使用低醛含量的调色剂的静电成像装置和传真装置

    公开(公告)号:US5333059A

    公开(公告)日:1994-07-26

    申请号:US857584

    申请日:1992-03-25

    摘要: The present invention provide a toner for developing an electrostatic image. The toner comprises a binder resin and a coloring agent. The binder resin comprises a styrene type binder resin. The amount of an aldehyde contained in the binder resin is not more than 0.005% by weight based on the weight of the toner. The binder resin is produced by a process comprising the steps of preparing a monomer composition comprising a polymerizable monomer containing at least not less than 50% by weight of a styrene monomer, and a polymerization initiator, and subjecting said monomer composition to suspension polymerization in an aqueous medium having dissolved oxygen in an amount of not more than 2.5 mg/lit to form a styrene polymer or copolymer containing an aldehyde monomer in an amount of not more than 0.01% by weight.

    摘要翻译: 本发明提供一种用于显影静电图像的调色剂。 调色剂包括粘合剂树脂和着色剂。 粘合剂树脂包括苯乙烯型粘合剂树脂。 基于调色剂的重量,粘合剂树脂中所含的醛的量不超过0.005重量%。 粘合剂树脂通过包括以下步骤的方法制备,所述方法包括制备包含至少不少于50重量%的苯乙烯单体的可聚合单体和聚合引发剂的单体组合物,并将所述单体组合物在 溶解氧量为2.5mg / L以下的水性介质,以形成不大于0.01重量%的含有醛单体的苯乙烯聚合物或共聚物。

    Process for developing electrostatic images and toner therefor
    6.
    发明授权
    Process for developing electrostatic images and toner therefor 失效
    用于显影静电图像和调色剂的方法

    公开(公告)号:US4628019A

    公开(公告)日:1986-12-09

    申请号:US724546

    申请日:1985-04-18

    CPC分类号: G03G13/08

    摘要: A substantially nonmagnetic toner comprising a colorant and a binder comprising a homopolymer or copolymer having a ratio (Mw/Mn) of a weight-average molecular weight (Mw) of a number average molecular weight (Mn) of less than 5.0 is formed in a thin layer on a toner carrying member. The layer of toner is carried to a developing zone at which an image bearing member is disposed to face the toner carrying member with a clearance larger than the toner layer thickness and an electrostatic image on the image bearing member is developed with the thin layer of toner. The toner binder resin preferably comprises a copolymer of a vinyl monomer and an amonoacrylic monomer.

    摘要翻译: 包含着色剂和包含均聚物或共聚物的基本上非磁性的调色剂在数均分子量(Mn)小于5.0的重均分子量(Mw)之比(Mw / Mn) 薄层在调色剂承载构件上。 调色剂层承载到显影区域,在该显影区域,图像承载部件设置成以比调色剂层厚度大的间隙面对调色剂承载部件,并且图像承载部件上的静电图像用调色剂薄层显影 。 调色剂粘合剂树脂优选包括乙烯基单体和氨基丙烯酸单体的共聚物。

    Cyan color toner for developing electrostatic image
    7.
    发明授权
    Cyan color toner for developing electrostatic image 失效
    用于显影静电图像的青色彩色调色剂

    公开(公告)号:US4518672A

    公开(公告)日:1985-05-21

    申请号:US494866

    申请日:1983-05-16

    CPC分类号: G03G9/0918

    摘要: A cyan color toner for developing electrostatic images was provided which comprises a compound respresented by the general formula shown below in the resin and which has excellent spectral reflection characteristics. ##STR1## where X.sub.1, X.sub.2, X.sub.3 and X.sub.4 are ##STR2## or --H, but are not simultaneously hydrogen, and R and R' are alkylene group of carbon number of from 1 to 5.

    摘要翻译: 提供了用于显影静电图像的青色调色剂,其包含在树脂中由下列通式表示的化合物,并且具有优异的光谱反射特性。 其中X1,X2,X3和X4为“IMAGE”或“-H”,但不能同时为氢,R和R'为碳原子数为1至5的亚烷基。

    Toner, charge-imparting material and composition containing organotin
alkoxide
    9.
    发明授权
    Toner, charge-imparting material and composition containing organotin alkoxide 失效
    调色剂,电荷赋予材料和含有有机锡醇盐的组合物

    公开(公告)号:US4657838A

    公开(公告)日:1987-04-14

    申请号:US857133

    申请日:1986-04-29

    IPC分类号: G03G9/097 G03G9/08

    CPC分类号: G03G9/09783

    摘要: A triboelectrically chargeable composition for use in development of electrostatic latent images. The composition contains an organotin alkoxide compound having at least one alkoxy group directly connected to the Sn atom. The composition is embodied typically as a positively chargeable toner and also as a charge-imparting material for charging a toner.

    摘要翻译: 用于静电潜像显影的摩擦电荷充电组合物。 该组合物含有具有至少一个与Sn原子直接连接的烷氧基的有机锡醇盐化合物。 该组合物通常体现为可充正电的调色剂,并且还作为用于带电调色剂的电荷赋予材料。

    Toner application method and developer composition
    10.
    发明授权
    Toner application method and developer composition 失效
    调色剂应用方法和显影剂组成

    公开(公告)号:US4592987A

    公开(公告)日:1986-06-03

    申请号:US658787

    申请日:1984-10-09

    CPC分类号: G03G13/09 Y10S222/01

    摘要: A method for applying a toner comprising: forming, in a container containing a toner and magnetic particles for application of the toner, a magnetic brush of the magnetic particles; circulating the magnetic particles in the container; and forming a thin layer of the toner electrically charged on the toner carrying member; wherein the magnetic particles have a particle size distribution of 30 wt. % or more in the range of 150 to 200 mesh and 5 wt. % or less of under 250 mesh, and the weight ratio of the toner to the magnetic particles is from 5:95 to 50:50 in the region where the magnetic brush is formed.

    摘要翻译: 一种施加调色剂的方法,包括:在容纳调色剂的容器和用于施加调色剂的磁性颗粒的容器中形成磁性颗粒的磁刷; 将磁性颗粒循环在容器中; 以及形成在所述调色剂承载构件上带电的所述调色剂薄层; 其中所述磁性颗粒的粒度分布为30wt。 在150至200目和5wt。 %以下的250目以下,在形成磁刷的区域中,调色剂与磁性粒子的重量比为5:95〜50:50。