公开(公告)号：US20200308328A1

公开(公告)日：2020-10-01

申请号：US16369013

申请日：2019-03-29

Applicant: Xerox Corporation

Inventor： Richard P. N. Veregin ,  Padam K. Angra ,  Maria McCall Barden ,  Majid Kamel ,  Cuong Vong ,  Randy P. Tin ,  Mark A. Jackson ,  John J. Ianni

IPC: C08F220/18 ,  C08F212/36 ,  C08F220/34 ,  G03G9/08 ,  G03G9/093

Abstract: A polymeric composition including a copolymer comprising a first monomer having a high carbon to oxygen ratio of from about 3 to about 8; a second monomer comprising two or more vinyl groups, wherein the second monomer is present in the copolymer in an amount of from greater than about 8 percent by weight to about 60 percent by weight, based on the weight of the copolymer; and, optionally, a third monomer comprising an amine, wherein the third monomer, if present, is present in an amount of from about 0.5 percent by weight to about 5 percent by weight, based on the weight of the copolymer. A toner including the copolymer as a toner surface additive. An emulsion aggregation toner process including the copolymer as a toner surface additive.

公开(公告)号：US09075329B2

公开(公告)日：2015-07-07

申请号：US13838774

申请日：2013-03-15

Applicant: Xerox Corporation

Inventor： Juan A. Morales-Tirado ,  Mark A. Jackson

IPC: G03G9/087 ,  G03G9/08 ,  G03G9/093

CPC classification number: G03G9/0825 ,  G03G9/0802 ,  G03G9/09314 ,  G03G9/09357 ,  G03G9/09392

Abstract: A method of making toner particles that includes forming a pre-shell aggregate mixture by adding to a reactor pre-shell aggregate ingredients, the includes a latex resin, the reactor having a mixing impeller and a heating jacket; performing pre-shell aggregation while homogenizing the pre-shell aggregate mixture with the impeller at an initial tip speed to form pre-shell aggregates; decreasing the tip speed to a second tip speed when the pre-shell aggregates reach a target intermediate average particle diameter; and then decreasing the tip speed at one or more intervals between when the pre-shell aggregates reach the target intermediate average particle diameter and when the pre-shell aggregates reach a target final average particle diameter so that the tip speed meets the following formula: tip speed=1644ft/min−204.9(ft/(min*μm))*average particle diameter(μm).

Abstract translation: 一种制备调色剂颗粒的方法，包括通过向反应器中加入预壳聚集体成分形成预壳聚集体混合物，其包括胶乳树脂，反应器具有混合叶轮和加热夹套; 在初始尖端速度下用叶轮均匀化预壳聚集体混合物以形成预壳聚集体; 当前壳聚集体达到目标中间平均粒径时，将尖端速度降低到第二尖端速度; 然后在预壳聚集体达到目标中间平均粒径之间以及当前壳聚集体达到目标最终平均粒径时以一个或多个间隔降低尖端速度，使得尖端速度满足以下公式：尖端 速度= 1644ft / min-204.9（ft /（min *μm））*平均粒径（μm）。