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1. 发明申请

US20160136607A1 POROUS NANOPARTICLES PRODUCED BY SOLVENT-FREE EMULSIFICATION 审中-公开
标题翻译：通过无溶剂氧化生产的多孔纳米粒子
公开(公告)号：US20160136607A1
公开(公告)日：2016-05-19
申请号：US15002274
申请日：2016-01-20
申请人： XEROX CORPORATION
发明人： David John William Lawton , Santiago Faucher
IPC分类号： B01J13/06
CPC分类号： B01J13/06 , A61K8/0279 , A61K8/11 , A61K8/85 , A61K9/51 , A61K2800/10 , A61K2800/412 , A61K2800/413 , A61K2800/56 , A61K2800/654 , A61K2800/805 , A61Q19/00 , B01J13/0091 , B82Y40/00 , Y10T428/2982 , Y10T428/2998
摘要： Disclosed herein are porous nanoparticles having a particle size of from about 50 nm to about 2 μm and a pore diameter of from about 20 nm to about 400 nm. The porous nanoparticles include a resin composition comprising at least one polyester resin in the absence of an organic solvent, and a surfactant.
摘要翻译：本文公开了具有约50nm至约2μm的粒度和约20nm至约400nm的孔径的多孔纳米颗粒。多孔纳米颗粒包括在不存在有机溶剂的情况下包含至少一种聚酯树脂的树脂组合物和表面活性剂。

2. 发明申请

US20170131649A1 Toner Comprising Colorant Wax Dispersion 有权
公开(公告)号：US20170131649A1
公开(公告)日：2017-05-11
申请号：US15415333
申请日：2017-01-25
申请人： Xerox Corporation
发明人： Frank Ping-Hay Lee , Richard P. N. Veregin , Shigang S. Qiu , Michael J. D'Amato , Aurelian Valeriu Magdalinis , David John William Lawton
IPC分类号： G03G9/09 , G03G9/093 , G03G9/087 , G03G9/08
CPC分类号： G03G9/0812 , G03G9/0804 , G03G9/0808 , G03G9/081 , G03G9/0819 , G03G9/08755 , G03G9/08782 , G03G9/0904 , G03G9/0906 , G03G9/0926 , G03G9/09392
摘要： A toner including a resin; and a colorant wax comprising a plurality of colorant wax particles comprising a colorant core surrounded by a wax shell, wherein the colorant wax particles exhibit a particle size distribution of from about 150 nanometers to less than about 300 nanometers; and wherein the colorant wax is prepared by (a) melting and mixing a dry colorant with at least one wax to form a colorant concentrate, wherein the colorant concentrate contains at least 25 percent by weight of colorant; (b) milling the colorant concentrate of step (a) to form a milled colorant concentrate; (c) combining the milled colorant concentrate of (b) with water and dispersing to form the plurality of colorant wax particles; wherein the melting and mixing of step (a) and the milling of step (b) is done in an immersion media mill; and wherein the combining of step (c) is done using a piston homogenizer.

3. 发明申请

US20150299425A1 Pigmented Wax Dispersion And Method For Preparing Same 有权
标题翻译：颜料蜡分散体及其制备方法
公开(公告)号：US20150299425A1
公开(公告)日：2015-10-22
申请号：US14256937
申请日：2014-04-19
申请人： Xerox Corporation
发明人： Frank Ping-Hay Lee , Aurelian Valeriu Magdalinis , Michael J. D'Amato , Richard P. N. Veregin , David John William Lawton , Marcel P. Breton
IPC分类号： C08K5/3417
CPC分类号： C08K5/3417 , C09D11/322 , C09D11/34
摘要： A process for preparing a pigmented wax dispersion including (a) melting and mixing a dry pigment with at least one wax to form a pigment concentrate, wherein the pigment concentrate contains at least 25 percent by weight of pigment; (b) milling the pigment concentrate of step (a) to form a milled pigment concentrate; (c) combining the milled pigment concentrate of (b) with water and dispersing to form a pigmented wax dispersion comprising a plurality of pigmented wax particles comprising a pigment core surrounded by a wax shell, wherein the pigmented wax particles exhibit a particle size distribution of from about 150 nanometers to less than about 300 nanometers; wherein the melting and mixing of step (a) and the milling of step (b) is done in an immersion media mill; and wherein the combining of step (c) is done using a piston homogenizer.
摘要翻译：一种制备着色蜡分散体的方法，包括（a）将干颜料与至少一种蜡熔融和混合以形成颜料浓缩物，其中所述颜料浓缩物含有至少25重量％的颜料; （b）研磨步骤（a）的颜料浓缩物以形成研磨的颜料浓缩物; （c）将（b）的研磨的颜料浓缩物与水混合并分散以形成着色的蜡分散体，其包含多个着色的蜡颗粒，其包含被蜡壳包围的颜料芯，其中着色的蜡颗粒表现出从约150纳米到小于约300纳米; 其中步骤（a）的熔融和混合和步骤（b）的研磨在浸渍介质研磨机中进行; 并且其中步骤（c）的组合使用活塞均化器进行。

4. 发明申请

US20150111151A1 CONTINUOUS TONER COALESCENCE PROCESSES 有权
标题翻译：连续的粉煤灰过程
公开(公告)号：US20150111151A1
公开(公告)日：2015-04-23
申请号：US14057504
申请日：2013-10-18
申请人： Xerox Corporation
发明人： David John William Lawton , David R. Kurceba , Edward Graham Zwartz , Daniel McDougall McNeil
IPC分类号： G03G9/08
CPC分类号： G03G9/0827 , G03G9/0802 , G03G9/0804 , G03G9/0819
摘要： Processes for continuously coalescing particles from an aggregated particle slurry are disclosed. An aggregated particle slurry is further heated in a first heat exchanger, and the heated slurry then flows through a residence time reactor. The slurry, now containing coalesced particles, then flows through a second heat exchanger and is quenched. The recovered coalesced particle slurry is then suitable for washing and drying. No moving parts are needed in this system.
摘要翻译：公开了从聚集的颗粒浆料连续聚结颗粒的方法。将聚集的颗粒浆料在第一热交换器中进一步加热，然后加热的浆料流过停留时间反应器。现在含有聚结颗粒的浆料然后流过第二个热交换器并被淬火。然后回收的聚结颗粒浆液适于洗涤和干燥。该系统不需要移动部件。

5. 发明申请

US20230060436A1 POWDER PARTICULATES COMPRISING A WATER-SOLUBLE POLYMER AND PRODUCTION THEREOF BY MELT EMULSIFICATION 有权
公开(公告)号：US20230060436A1
公开(公告)日：2023-03-02
申请号：US17411286
申请日：2021-08-25
申请人： Xerox Corporation
发明人： Benjamin John Knapik , David John William Lawton
IPC分类号： C08L29/04 , C08K3/36 , C08K7/18
摘要： Powder particulates comprising a water-soluble polymer may be formed by melt emulsification. Compositions comprising powder particulates may comprise a plurality of particulates comprising a water-soluble polymer and a plurality of nanoparticles, the water-soluble polymer defining at least an outer surface of the particulates and at least a majority of the plurality of nanoparticles being disposed upon the outer surface.

6. 发明授权

US10018930B2 Toner comprising colorant wax dispersion 有权
公开(公告)号：US10018930B2
公开(公告)日：2018-07-10
申请号：US15415333
申请日：2017-01-25
申请人： Xerox Corporation
发明人： Frank Ping-Hay Lee , Richard P. N. Veregin , Shigang S. Qiu , Michael J. D'Amato , Aurelian Valeriu Magdalinis , David John William Lawton
IPC分类号： G03G9/08 , G03G9/093 , G03G9/09
CPC分类号： G03G9/0812 , G03G9/0804 , G03G9/0808 , G03G9/081 , G03G9/0819 , G03G9/08755 , G03G9/08782 , G03G9/0904 , G03G9/0906 , G03G9/0926 , G03G9/09392
摘要： A toner including a resin; and a colorant wax comprising a plurality of colorant wax particles comprising a colorant core surrounded by a wax shell, wherein the colorant wax particles exhibit a particle size distribution of from about 150 nanometers to less than about 300 nanometers; and wherein the colorant wax is prepared by (a) melting and mixing a dry colorant with at least one wax to form a colorant concentrate, wherein the colorant concentrate contains at least 25 percent by weight of colorant; (b) milling the colorant concentrate of step (a) to form a milled colorant concentrate; (c) combining the milled colorant concentrate of (b) with water and dispersing to form the plurality of colorant wax particles; wherein the melting and mixing of step (a) and the milling of step (b) is done in an immersion media mill; and wherein the combining of step (c) is done using a piston homogenizer.

7. 发明授权

US09309114B2 Porous nanoparticles produced by solvent-free emulsification 有权
标题翻译：通过无溶剂乳化法生产的多孔纳米颗粒
公开(公告)号：US09309114B2
公开(公告)日：2016-04-12
申请号：US13740314
申请日：2013-01-14
申请人： XEROX CORPORATION
发明人： David John William Lawton , Santiago Faucher
IPC分类号： B01J13/00 , B82Y40/00 , A61K8/11 , A61K9/51
CPC分类号： B01J13/06 , A61K8/0279 , A61K8/11 , A61K8/85 , A61K9/51 , A61K2800/10 , A61K2800/412 , A61K2800/413 , A61K2800/56 , A61K2800/654 , A61K2800/805 , A61Q19/00 , B01J13/0091 , B82Y40/00 , Y10T428/2982 , Y10T428/2998
摘要： The process for manufacturing porous nanoparticles disclosed herein includes feeding a dry-blended mixture of at least one resin and a neutralizing agent into a feed section of a screw extruder, injecting a surfactant solution downstream of the hopper, and adding an aqueous composition both directly after the surfactant solution as well as further downstream. Porous nanoparticles having a particle size of from about 50 nm to about 2 μm and a pore diameter of from about 20 nm to about 400 nm may be continuously recovered from the extruder following this process.
摘要翻译：本文公开的制造多孔纳米颗粒的方法包括将至少一种树脂和中和剂的干混混合物进料到螺杆挤出机的进料段中，在料斗下游注入表面活性剂溶液，并将水性组合物直接在表面活性剂溶液以及下游。在该方法之后，可以从挤出机中连续回收粒径为约50nm至约2μm且孔径为约20nm至约400nm的多孔纳米颗粒。

8. 发明申请

US20210069958A1 Melt Emulsion Extrusion Methods for Producing Thermoplastic Polymer Particles 有权
公开(公告)号：US20210069958A1
公开(公告)日：2021-03-11
申请号：US16946627
申请日：2020-06-30
申请人： Xerox Corporation
发明人： Valerie M. Farrugia , Michael S. Hawkins , David John William Lawton , Carolyn Patricia Moorlag
IPC分类号： B29C48/04 , B29C48/80 , B29C48/82 , B33Y70/00 , B29B9/12 , B29B9/10
摘要： A method of making thermoplastic polymer particles may include mixing in an extruder a mixture comprising a thermoplastic polymer and a carrier fluid that is immiscible with the thermoplastic polymer at a temperature greater than a melting point or softening temperature of the thermoplastic polymer and at a shear rate sufficiently high to disperse the thermoplastic polymer in the carrier fluid; cooling the mixture to below the melting point or softening temperature of the thermoplastic polymer to form solidified particles comprising thermoplastic polymer particles having a circularity of 0.90 or greater and that comprise the thermoplastic polymer; and separating the solidified particles from the carrier fluid.

9. 发明授权

US10067434B2 Emulsion aggregation toners 有权
公开(公告)号：US10067434B2
公开(公告)日：2018-09-04
申请号：US15469116
申请日：2017-03-24
申请人： XEROX CORPORATION
发明人： Juan A. Morales-Tirado , David John William Lawton , Vincenzo G. Marcello
IPC分类号： G03G9/08 , G03G9/087 , G03G9/09
摘要： A continuous flow process for producing coalesced toner particles from aggregated toner particles includes continuously flowing a slurry of aggregated toner particles having a size of from about 5 microns to about 7 microns through one or more heat exchangers, wherein a residence time in the one or more heat exchangers is from about 1 second to about 15 minutes, thereby producing coalesced toner particles having a circularity of from about 0.930 to about 0.990. The aggregated toner particles comprise a polymer resin, a colorant, an aggregating agent, and an optional wax.

10. 发明授权

US09639017B2 Toner comprising colorant wax dispersion 有权
公开(公告)号：US09639017B2
公开(公告)日：2017-05-02
申请号：US14256941
申请日：2014-04-19
申请人： Xerox Corporation
发明人： Frank Ping-Hay Lee , Richard P. N. Veregin , Shigang S. Qiu , Michael J. D'Amato , Aurelian Valeriu Magdalinis , David John William Lawton
IPC分类号： G03G9/087 , G03G9/09 , G03G9/08 , G03G9/093
CPC分类号： G03G9/0812 , G03G9/0804 , G03G9/0808 , G03G9/081 , G03G9/0819 , G03G9/08755 , G03G9/08782 , G03G9/0904 , G03G9/0906 , G03G9/0926 , G03G9/09392
摘要： A toner including a resin; and a colorant wax comprising a plurality of colorant wax particles comprising a colorant core surrounded by a wax shell, wherein the colorant wax particles exhibit a particle size distribution of from about 150 nanometers to less than about 300 nanometers; and wherein the colorant wax is prepared by (a) melting and mixing a dry colorant with at least one wax to form a colorant concentrate, wherein the colorant concentrate contains at least 25 percent by weight of colorant; (b) milling the colorant concentrate of step (a) to form a milled colorant concentrate; (c) combining the milled colorant concentrate of (b) with water and dispersing to form the plurality of colorant wax particles; wherein the melting and mixing of step (a) and the milling of step (b) is done in an immersion media mill; and wherein the combining of step (c) is done using a piston homogenizer.

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