公开(公告)号：US20160124331A1

公开(公告)日：2016-05-05

申请号：US14534058

申请日：2014-11-05

Applicant: XEROX CORPORATION

Inventor： Steven M. Malachowski ,  Eric Joseph Young ,  Linda Jan ,  Eric David Godshall ,  Brian J. Marion ,  Chieh-Min Cheng

IPC: G03G9/08

CPC classification number: G03G9/081 ,  G03G9/0804 ,  G03G9/0815

Abstract: In an exemplary embodiment of the invention, a continuous process for rounding conventional toner particles includes forming a conventional toner particle slurry by mixing a dispersant and/or a liquid with dry toner particles, heating the conventional toner particle slurry to a first temperature beyond its glass transition temperature to form a coalesced toner particle slurry, quenching the coalesced toner particle slurry to a second temperature below the glass transition temperature after a residence time has elapsed, and recovering the quenched particle slurry at an outlet wherein the circularity of the conventional toner particles in the quenched toner particle slurry is from approximately 0.940 to 0.999 and the time frame for the heating, quenching and recovering steps is less than 20 minutes. An apparatus for practicing the novel continuous coalescence of toner particles, includes an inlet passage, a first heat exchanger coupled to the inlet passage, a residence time coil coupled to the first heat exchanger, a cooling device coupled to the residence time coil; and an outlet passage coupled to the cooling device.

Abstract translation: 在本发明的示例性实施方案中，用于对常规调色剂颗粒进行四舍五入的连续方法包括通过将分散剂和/或液体与干调色剂颗粒混合来形成常规调色剂颗粒浆料，将常规调色剂颗粒浆料加热至超过其玻璃的第一温度 转变温度以形成聚结的调色剂颗粒浆料，在经过停留时间之后将聚结的调色剂颗粒骤冷至低于玻璃化转变温度的第二温度，并在出口处回收淬火的颗粒浆料，其中常规调色剂颗粒的圆度 淬火后的调色剂颗粒浆料约为0.940至0.999，加热，淬火和回收步骤的时间范围小于20分钟。 用于实施调色剂颗粒的新型连续聚结的装置包括入口通道，耦合到入口通道的第一热交换器，耦合到第一热交换器的停留时间线圈，耦合到停留时间线圈的冷却装置; 以及联接到冷却装置的出口通道。

公开(公告)号：US20240325994A1

公开(公告)日：2024-10-03

申请号：US18191951

申请日：2023-03-29

Applicant: XEROX CORPORATION

Inventor： Lanhui Zhang ,  Genggeng Qi ,  Brian J. Marion ,  Troy Brown ,  Yu Qi ,  Chieh-Min Cheng

IPC: B01F23/43 ,  B01F23/40

CPC classification number: B01F23/43 ,  B01F23/405

Abstract: A mixer includes a shaft and an agitator coupled to the shaft. The shaft and the agitator are configured to rotate together to mix a liquid composition. The mixer also includes a sleeve positioned around the shaft. The sleeve forms a gap between the shaft and the sleeve. The sleeve is positioned in the liquid composition such that the liquid composition fills the gap up to the surface of the liquid composition in the gap to form a liquid seal between the shaft and the sleeve that minimizes an amount of air that penetrates into the liquid composition outside the gap during rotation of the shaft and the agitator.

公开(公告)号：US20180059559A1

公开(公告)日：2018-03-01

申请号：US15250326

申请日：2016-08-29

Applicant: XEROX CORPORATION

Inventor： Judith M. Vandewinckel ,  Kevin F. Marcell ,  Chieh-Min Cheng ,  Brian J. Marion ,  Scott M. Smith

IPC: G03G9/08 ,  B02C23/12

CPC classification number: G03G9/0804 ,  B02C23/12 ,  G03G9/0812 ,  G03G9/0817 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/08782

Abstract: A method includes grinding a wax into wax particles having a size in a range from about 600 microns to about 800 microns forming a mixture of the wax particles with water and a surfactant; and homogenizing the mixture to form a wax dispersion, the homogenizing step is maintained below about 35° C. A wax dispersion includes a wax a surfactant; and water, particles of the wax dispersion are a uniform, irregular, non-platelet morphology. A wax dispersion made by a process includes grinding a wax into wax particles having a size in a range from about 600 microns to about 800 microns, forming a mixture of the wax particles with water and a surfactant, and homogenizing the mixture to form a wax dispersion, the homogenizing step is maintained below about 35° C. and the wax has a uniform, irregular, non-platelet morphology imparted by combination of the grinding and homogenizing steps.

公开(公告)号：US10175593B2

公开(公告)日：2019-01-08

申请号：US15250326

申请日：2016-08-29

Applicant: XEROX CORPORATION

Inventor： Judith M. Vandewinckel ,  Kevin F. Marcell ,  Chieh-Min Cheng ,  Brian J. Marion ,  Scott M. Smith

IPC: B02C23/12 ,  G03G9/08 ,  G03G9/087

Abstract: A method includes grinding a wax into wax particles having a size in a range from about 600 microns to about 800 microns forming a mixture of the wax particles with water and a surfactant; and homogenizing the mixture to form a wax dispersion, the homogenizing step is maintained below about 35° C. A wax dispersion includes a wax a surfactant; and water, particles of the wax dispersion are a uniform, irregular, non-platelet morphology. A wax dispersion made by a process includes grinding a wax into wax particles having a size in a range from about 600 microns to about 800 microns, forming a mixture of the wax particles with water and a surfactant, and homogenizing the mixture to form a wax dispersion, the homogenizing step is maintained below about 35° C. and the wax has a uniform, irregular, non-platelet morphology imparted by combination of the grinding and homogenizing steps.

公开(公告)号：US09372421B2

公开(公告)日：2016-06-21

申请号：US14534058

申请日：2014-11-05

Applicant: XEROX CORPORATION

Inventor： Steven M. Malachowski ,  Eric Joseph Young ,  Linda Jan ,  Eric David Godshall ,  Brian J. Marion ,  Chieh-Min Cheng

IPC: G03G9/08

CPC classification number: G03G9/081 ,  G03G9/0804 ,  G03G9/0815

Abstract: In an exemplary embodiment of the invention, a continuous process for rounding conventional toner particles includes forming a conventional toner particle slurry by mixing a dispersant and/or a liquid with dry toner particles, heating the conventional toner particle slurry to a first temperature beyond its glass transition temperature to form a coalesced toner particle slurry, quenching the coalesced toner particle slurry to a second temperature below the glass transition temperature after a residence time has elapsed, and recovering the quenched particle slurry at an outlet wherein the circularity of the conventional toner particles in the quenched toner particle slurry is from approximately 0.940 to 0.999 and the time frame for the heating, quenching and recovering steps is less than 20 minutes. An apparatus for practicing the novel continuous coalescence of toner particles, includes an inlet passage, a first heat exchanger coupled to the inlet passage, a residence time coil coupled to the first heat exchanger, a cooling device coupled to the residence time coil; and an outlet passage coupled to the cooling device.

Abstract translation: 在本发明的示例性实施方案中，用于对常规调色剂颗粒进行四舍五入的连续方法包括通过将分散剂和/或液体与干调色剂颗粒混合来形成常规调色剂颗粒浆料，将常规调色剂颗粒浆料加热至超过其玻璃的第一温度 转变温度以形成聚结的调色剂颗粒浆料，在经过停留时间之后将聚结的调色剂颗粒骤冷至低于玻璃化转变温度的第二温度，并在出口处回收淬火的颗粒浆料，其中常规调色剂颗粒的圆度 淬火后的调色剂颗粒浆料约为0.940至0.999，加热，淬火和回收步骤的时间范围小于20分钟。 用于实施调色剂颗粒的新型连续聚结的装置包括入口通道，耦合到入口通道的第一热交换器，耦合到第一热交换器的停留时间线圈，耦合到停留时间线圈的冷却装置; 以及联接到冷却装置的出口通道。